Esempio n. 1
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    def test_badly_behaved(self):
        """
        Make sure avocado can cleanly get out of a loop of badly behaved tests.
        """
        bad_test_basename = ('wontquit-%s' %
                             data_factory.generate_random_string(5))
        bad_test = script.TemporaryScript(bad_test_basename, BAD_TEST,
                                          'avocado_interrupt_test',
                                          mode=0755)
        bad_test.save()

        os.chdir(basedir)
        cmd_line = ('./scripts/avocado run --sysinfo=off --job-results-dir %s '
                    '%s %s %s' % (self.tmpdir,
                                  bad_test.path,
                                  bad_test.path,
                                  bad_test.path))
        proc = aexpect.Expect(command=cmd_line, linesep='')
        proc.read_until_last_line_matches(os.path.basename(bad_test.path))
        proc.sendline('\x03')
        proc.read_until_last_line_matches('Interrupt requested. Waiting 2 '
                                          'seconds for test to finish '
                                          '(ignoring new Ctrl+C until then)')
        # We have to actually wait 2 seconds until the ignore window is over
        time.sleep(2)
        proc.sendline('\x03')
        proc.read_until_last_line_matches('TIME       : %d s')
        wait.wait_for(lambda: not proc.is_alive(), timeout=1)

        # Make sure the bad test will be really gone from the process table
        def wait_until_no_badtest():
            bad_test_processes = []

            old_psutil = False
            try:
                process_list = psutil.pids()
            except AttributeError:
                process_list = psutil.get_pid_list()
                old_psutil = True

            for p in process_list:
                try:
                    p_obj = psutil.Process(p)
                    if p_obj is not None:
                        if old_psutil:
                            cmdline_list = psutil.Process(p).cmdline
                        else:
                            cmdline_list = psutil.Process(p).cmdline()
                        if bad_test.path in " ".join(cmdline_list):
                            bad_test_processes.append(p_obj)
                # psutil.NoSuchProcess happens when the original
                # process already ended and left the process table
                except psutil.NoSuchProcess:
                    pass

            return len(bad_test_processes) == 0

        wait.wait_for(wait_until_no_badtest, timeout=2)
        # Make sure the Killing test subprocess message did appear
        self.assertIn('Killing test subprocess', proc.get_output())
Esempio n. 2
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def wait_for(func, step=1, text=None, timeout=None, throw_exc=False, **kwargs):
    """
    Wrapper function to wait with timeout option.
    If timeout received, avocado 'wait_for' method will be used.
    Otherwise the below function will be called.

    :param func: Function to evaluate.
    :param step: Time to sleep between attempts in seconds
    :param text: Text to print while waiting, for debug purposes
    :param timeout: Timeout in seconds
    :param throw_exc: Raise exception if timeout expired, but func result is not True
    :param kwargs: Keyword arguments to func
    :return: Return value of func.
    """
    if not timeout:
        return forever_wait_for(func, step, text, **kwargs)
    if kwargs:
        def func_wrap():
            return func(**kwargs)
        res = wait.wait_for(func_wrap, timeout=timeout, step=step, text=text)
    else:
        res = wait.wait_for(func, timeout=timeout, step=step, text=text)
    if res is not True:
        err = 'Wait for: {}: timeout - {} seconds - expired'.format(text, timeout)
        LOGGER.warning(err)
        if throw_exc:
            raise WaitTimeoutExpired(err)
    return res
Esempio n. 3
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    def test_badly_behaved(self):
        """
        Make sure avocado can cleanly get out of a loop of badly behaved tests.
        """
        bad_test_basename = ('wontquit-%s' %
                             data_factory.generate_random_string(5))
        bad_test = script.TemporaryScript(bad_test_basename,
                                          BAD_TEST,
                                          'avocado_interrupt_test',
                                          mode=DEFAULT_MODE)

        bad_test.save()

        os.chdir(basedir)
        cmd_line = ('./scripts/avocado run --sysinfo=off --job-results-dir %s '
                    '%s %s %s' %
                    (self.tmpdir, bad_test.path, bad_test.path, bad_test.path))
        proc = aexpect.Expect(command=cmd_line, linesep='')
        proc.read_until_last_line_matches(os.path.basename(bad_test.path))
        proc.sendline('\x03')
        proc.read_until_last_line_matches('Interrupt requested. Waiting 2 '
                                          'seconds for test to finish '
                                          '(ignoring new Ctrl+C until then)')
        # We have to actually wait 2 seconds until the ignore window is over
        time.sleep(2.5)
        proc.sendline('\x03')
        proc.read_until_last_line_matches('TESTS TIME : %d s')
        wait.wait_for(lambda: not proc.is_alive(), timeout=1)

        # Make sure the bad test will be really gone from the process table
        def wait_until_no_badtest():
            bad_test_processes = []

            old_psutil = False
            try:
                process_list = psutil.pids()
            except AttributeError:
                process_list = psutil.get_pid_list()
                old_psutil = True

            for p in process_list:
                try:
                    p_obj = psutil.Process(p)
                    if p_obj is not None:
                        if old_psutil:
                            cmdline_list = psutil.Process(p).cmdline
                        else:
                            cmdline_list = psutil.Process(p).cmdline()
                        if bad_test.path in " ".join(cmdline_list):
                            bad_test_processes.append(p_obj)
                # psutil.NoSuchProcess happens when the original
                # process already ended and left the process table
                except psutil.NoSuchProcess:
                    pass

            return len(bad_test_processes) == 0

        wait.wait_for(wait_until_no_badtest, timeout=2)
        # Make sure the Killing test subprocess message did appear
        self.assertIn('Killing test subprocess', proc.get_output())
Esempio n. 4
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    def set_multipath_disks_status(disks, status):
        """
        set multiple paths to same status. all disks online or offline.
        multipath like below:
        mpatha (360050763008084e6e0000000000001a4) dm-3 IBM,2145
        size=100G features='1 queue_if_no_path' hwhandler='1 alua' wp=rw
        |-+- policy='service-time 0' prio=50 status=active
        | `- 1:0:1:0 sdc 8:32  active ready running
        `-+- policy='service-time 0' prio=10 status=enabled
          `- 1:0:0:0 sdb 8:16 failed faulty offline

        :param disks: disk list.
        :param status: the state of disk. online/offline
        :return: by default
        """
        for disk in disks:
            set_disk_status_to_online_offline(disk, status)
            time.sleep(2)
        if len(disks) == 1:
            wait.wait_for(lambda: compare_onepath_status(status, disks[0]),
                          first=wait_time,
                          step=3,
                          timeout=60)
        else:
            wait.wait_for(lambda: compare_multipath_status(status),
                          first=wait_time,
                          step=3,
                          timeout=60)
Esempio n. 5
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def wait_for(func, step=1, text=None, timeout=None, throw_exc=False, **kwargs):
    """
    Wrapper function to wait with timeout option.
    If timeout received, avocado 'wait_for' method will be used.
    Otherwise the below function will be called.

    :param func: Function to evaluate.
    :param step: Time to sleep between attempts in seconds
    :param text: Text to print while waiting, for debug purposes
    :param timeout: Timeout in seconds
    :param throw_exc: Raise exception if timeout expired, but func result is not True
    :param kwargs: Keyword arguments to func
    :return: Return value of func.
    """
    if not timeout:
        return forever_wait_for(func, step, text, **kwargs)
    if kwargs:

        def func_wrap():
            return func(**kwargs)

        res = wait.wait_for(func_wrap, timeout=timeout, step=step, text=text)
    else:
        res = wait.wait_for(func, timeout=timeout, step=step, text=text)
    if res is not True:
        err = 'Wait for: {}: timeout - {} seconds - expired'.format(
            text, timeout)
        LOGGER.warning(err)
        if throw_exc:
            raise WaitTimeoutExpired(err)
    return res
Esempio n. 6
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    def hotplug_add(self, slot, pci_addr):
        """
        Hot plug add operation
        """
        genio.write_file("/sys/bus/pci/slots/%s/power" % slot, "1")

        def is_added():
            """
            Returns True if pci device is added, False otherwise.
            """
            if pci_addr not in pci.get_pci_addresses():
                return False
            return True

        def is_recovered():
            """
            Compares current endpoint devices in pci address with
            `pre` value, and returns True if equals pre.
            False otherwise.
            """
            post = len(pci.get_disks_in_pci_address(pci_addr))
            post += len(pci.get_nics_in_pci_address(pci_addr))
            self.log.debug("Pre: %d,  Post: %d",
                           self.end_devices[pci_addr], post)
            if post == self.end_devices[pci_addr]:
                return True
            return False

        if not wait.wait_for(is_added, timeout=10):
            return False
        # Waiting for 10s per end device, for recovery.
        return wait.wait_for(is_recovered,
                             self.end_devices[pci_addr] * 10)
Esempio n. 7
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def form_conf_mpath_file(blacklist="", defaults_extra=""):
    """
    Form a multipath configuration file, and restart multipath service.

    :param blacklist: Entry in conf file to indicate blacklist section.
    :param defaults_extra: Extra entry in conf file in defaults section.
    """
    conf_file = "/etc/multipath.conf"
    with open(conf_file, "w", encoding='utf-8') as mpath_fp:
        mpath_fp.write("defaults {\n")
        mpath_fp.write("    find_multipaths yes\n")
        mpath_fp.write("    user_friendly_names yes\n")
        if defaults_extra:
            mpath_fp.write(f"    {defaults_extra}\n")
        mpath_fp.write("}\n")
        if blacklist:
            mpath_fp.write("blacklist {\n")
            mpath_fp.write(f"    {blacklist}\n")
            mpath_fp.write("}\n")
    LOG.debug(open(conf_file, "r", encoding='utf-8').read())
    # The reason for sleep here is to give some time for change in
    # multipath.conf file to take effect.
    time.sleep(5)
    mpath_svc = service.SpecificServiceManager(get_svc_name())
    mpath_svc.restart()
    wait.wait_for(mpath_svc.status, timeout=10)
Esempio n. 8
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    def test_well_behaved(self):
        """
        Make sure avocado can cleanly get out of a loop of well behaved tests.
        """
        good_test_basename = ('goodtest-%s.py' %
                              data_factory.generate_random_string(5))
        good_test = script.TemporaryScript(good_test_basename,
                                           GOOD_TEST,
                                           'avocado_interrupt_test',
                                           mode=DEFAULT_MODE)
        good_test.save()

        os.chdir(basedir)
        cmd_line = ('%s run --sysinfo=off --job-results-dir %s '
                    '%s %s %s' % (AVOCADO, self.tmpdir, good_test.path,
                                  good_test.path, good_test.path))
        proc = aexpect.Expect(command=cmd_line, linesep='')
        proc.read_until_last_line_matches(os.path.basename(good_test.path))
        proc.sendline('\x03')
        proc.read_until_last_line_matches('TESTS TIME : %d s')
        wait.wait_for(lambda: not proc.is_alive(), timeout=1)

        # Make sure the good test will be really gone from the process table
        def wait_until_no_goodtest():
            good_test_processes = []

            old_psutil = False
            try:
                process_list = psutil.pids()
            except AttributeError:
                process_list = psutil.get_pid_list()
                old_psutil = True

            for p in process_list:
                try:
                    p_obj = psutil.Process(p)
                    if p_obj is not None:
                        if old_psutil:
                            cmdline_list = psutil.Process(p).cmdline
                        else:
                            try:
                                cmdline_list = psutil.Process(p).cmdline()
                            except psutil.AccessDenied:
                                cmdline_list = []
                        if good_test.path in " ".join(cmdline_list):
                            good_test_processes.append(p_obj)
                # psutil.NoSuchProcess happens when the original
                # process already ended and left the process table
                except psutil.NoSuchProcess:
                    pass

            return len(good_test_processes) == 0

        wait.wait_for(wait_until_no_goodtest, timeout=2)
        # Make sure the Killing test subprocess message is not there
        self.assertNotIn('Killing test subprocess', proc.get_output())
        # Make sure the Interrupted requested sentence is there
        self.assertIn(
            'Interrupt requested. Waiting 2 seconds for test to '
            'finish (ignoring new Ctrl+C until then)', proc.get_output())
Esempio n. 9
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    def disrupt_abort_repair(self):
        """
        Start repair target_node in background, then try to abort the repair streaming.
        """
        self._set_current_disruption('AbortRepairMonkey')
        self.log.debug("Start repair target_node in background")
        thread1 = threading.Thread(target=self.repair_nodetool_repair)
        thread1.start()

        def repair_streaming_exists():
            result = self.target_node.remoter.run(
                'curl -X GET --header "Content-Type: application/json" --header "Accept: application/json" "http://127.0.0.1:10000/stream_manager/stream_manager/"'
            )
            return 'repair-' in result.stdout

        wait.wait_for(func=repair_streaming_exists,
                      timeout=10,
                      step=0.01,
                      text='Wait for repair starts')

        self.log.debug(
            "Abort repair streaming by storage_service/force_terminate_repair API"
        )
        self.target_node.remoter.run(
            'curl -X GET --header "Content-Type: application/json" --header "Accept: application/json" "http://127.0.0.1:10000/storage_service/force_terminate_repair"'
        )
        thread1.join(timeout=120)

        self.log.debug("Execute a complete repair for target node")
        self.repair_nodetool_repair()
    def upgrade(self, name=None):
        """
        Upgrade all packages of the system with eventual new versions.

        Optionally, upgrade individual packages.

        :param name: optional parameter wildcard spec to upgrade
        :type name: str
        """
        def update_pkg_list():
            ud_command = 'update'
            ud_cmd = self.base_command + ' ' + ud_command
            try:
                process.system(ud_cmd)
                return True
            except process.CmdError:
                return False

        wait.wait_for(update_pkg_list, timeout=300, step=30,
                      text="Wait until package list is up to date...")

        if name:
            up_command = 'install --only-upgrade'
            up_cmd = " ".join([self.base_command, self.dpkg_force_confdef,
                               up_command, name])
        else:
            up_command = 'upgrade'
            up_cmd = " ".join([self.base_command, self.dpkg_force_confdef,
                               up_command])

        try:
            process.system(up_cmd, shell=True, sudo=True)
            return True
        except process.CmdError:
            return False
Esempio n. 11
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    def test_well_behaved(self):
        """
        Make sure avocado can cleanly get out of a loop of well behaved tests.
        """
        good_test_basename = ('goodtest-%s.py' %
                              data_factory.generate_random_string(5))
        good_test = script.TemporaryScript(good_test_basename, GOOD_TEST,
                                           'avocado_interrupt_test',
                                           mode=DEFAULT_MODE)
        good_test.save()

        os.chdir(basedir)
        cmd_line = ('%s run --sysinfo=off --job-results-dir %s '
                    '%s %s %s' % (AVOCADO, self.tmpdir, good_test.path,
                                  good_test.path, good_test.path))
        proc = aexpect.Expect(command=cmd_line, linesep='')
        proc.read_until_last_line_matches(os.path.basename(good_test.path))
        proc.sendline('\x03')
        proc.read_until_last_line_matches('JOB TIME   : %d s')
        wait.wait_for(lambda: not proc.is_alive(), timeout=1)

        # Make sure the good test will be really gone from the process table
        def wait_until_no_goodtest():
            good_test_processes = []

            old_psutil = False
            try:
                process_list = psutil.pids()
            except AttributeError:
                process_list = psutil.get_pid_list()
                old_psutil = True

            for p in process_list:
                try:
                    p_obj = psutil.Process(p)
                    if p_obj is not None:
                        if old_psutil:
                            cmdline_list = psutil.Process(p).cmdline
                        else:
                            try:
                                cmdline_list = psutil.Process(p).cmdline()
                            except psutil.AccessDenied:
                                cmdline_list = []
                        if good_test.path in " ".join(cmdline_list):
                            good_test_processes.append(p_obj)
                # psutil.NoSuchProcess happens when the original
                # process already ended and left the process table
                except psutil.NoSuchProcess:
                    pass

            return len(good_test_processes) == 0

        wait.wait_for(wait_until_no_goodtest, timeout=2)
        # Make sure the Killing test subprocess message is not there
        self.assertNotIn('Killing test subprocess', proc.get_output())
        # Make sure the Interrupted requested sentence is there
        self.assertIn('Interrupt requested. Waiting 2 seconds for test to '
                      'finish (ignoring new Ctrl+C until then)',
                      proc.get_output())
    def setUp(self):
        """
        configure the virtual machine that will be used in the tests
        """
        self.cmd_run = self.params.get('command', default=None)
        self.debug = self.params.get('debug', default=False)
        self.iso_src = self.params.get('minishift_iso_src_path',
                                       default='~/.contra-env-setup/minishift')
        self.iso_dest = self.params.get(
            'minishift_iso_dest_path', default='~/.contra-env-setup/minishift')
        self.username = self.params.get('username', default='avocado')
        self.password = self.params.get('password', default='avocado')
        self.vm_name = self.params.get('vm_name',
                                       default='contra-env-setup-01')
        self.extra_cmd_run = self.params.get('extra_command', default=None)
        self.distro = self.params.get('distro', default='Fedora')
        self.pkg_mgm = self.params.get('pkg_mgm', default='dnf')
        self.os_variant = self.params.get('os_variant', default='fedora27')

        project = 'https://github.com/CentOS-PaaS-SIG/contra-env-setup.git'
        repo = self.params.get('repo', default=project)
        branch = self.params.get('branch', default='master')

        git.get_repo(repo, branch=branch, destination_dir=self.workdir)

        self.image = vmimage.get(self.distro,
                                 cache_dir='~/avocado/data/cache/')

        process.run('{qemu} resize '
                    '{image_path} 40G'.format(qemu=_QEMU_BIN,
                                              image_path=self.image.path))

        cmd = [
            _VIRTINST_BIN, '--import', '--noautoconsole', '--connect',
            'qemu:///system', '--name', self.vm_name, '--disk',
            '%s,size=40' % self.image.path, '--graphics', 'vnc', '--cpu',
            'host', '--memory', '7168', '--vcpus', '4', '--os-variant',
            self.os_variant, '--disk',
            '%s,device=cdrom,format=iso' %
            create_cloudinit_cdrom(self.vm_name, self.username, self.password)
        ]

        process.run(' '.join(cmd))

        wait.wait_for(ip_available, timeout=60, args=[self.vm_name])

        cmd = [
            _VIRSH_BIN, '--connect', 'qemu:///system', 'domifaddr',
            self.vm_name
        ]
        result = process.run(' '.join(cmd))

        for line in result.stdout_text.splitlines():
            if 'ipv4' in line:
                self.vm_ip = line.split()[3].split('/')[0]

        wait.wait_for(ssh_available,
                      timeout=60,
                      args=[self.vm_ip, self.username])
Esempio n. 13
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    def delete_fs(self, l_disk):
        """
        checks for disk/dir mount, unmount if mounted and checks for
        filesystem exitance and wipe it off after dir/disk unmount.

        :param l_disk: disk name for which you want to check the mount status
        :return: None
        """
        def is_fs_deleted():
            cmd = "wipefs -af %s" % l_disk
            process.system(cmd, shell=True, ignore_status=True)
            if disk.fs_exists(l_disk):
                return False
            return True

        def is_disk_unmounted():
            cmd = "umount %s" % l_disk
            cmd1 = 'umount /dev/mapper/avocado_vg-avocado_lv'
            process.system(cmd, shell=True, ignore_status=True)
            process.system(cmd1, shell=True, ignore_status=True)
            if disk.is_disk_mounted(l_disk):
                return False
            return True

        def is_dir_unmounted():
            cmd = 'umount %s' % self.dir
            process.system(cmd, shell=True, ignore_status=True)
            if disk.is_dir_mounted(self.dir):
                return False
            return True

        self.log.info("checking if disk is mounted.")
        if disk.is_disk_mounted(l_disk):
            self.log.info("%s is mounted, unmounting it ....", l_disk)
            if wait.wait_for(is_disk_unmounted, timeout=10):
                self.log.info("%s unmounted successfully" % l_disk)
            else:
                self.err_mesg.append("%s unmount failed", l_disk)
        else:
            self.log.info("disk %s not mounted." % l_disk)
        self.log.info("checking if dir %s is mounted." % self.dir)
        if disk.is_dir_mounted(self.dir):
            self.log.info("%s is mounted, unmounting it ....", self.dir)
            if wait.wait_for(is_dir_unmounted, timeout=10):
                self.log.info("%s unmounted successfully" % self.dir)
            else:
                self.err_mesg.append("failed to unount %s", self.dir)
        else:
            self.log.info("dir %s not mounted." % self.dir)
        self.log.info("checking if fs exists in {}" .format(l_disk))
        if disk.fs_exists(l_disk):
            self.log.info("found fs on %s, removing it....", l_disk)
            if wait.wait_for(is_fs_deleted, timeout=10):
                self.log.info("fs removed successfully..")
            else:
                self.err_mesg.append(f'failed to delete fs on {l_disk}')
        else:
            self.log.info(f'No fs detected on {self.disk}')
        self.log.info("Running dd...")
Esempio n. 14
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 def run_background_test(self):
     """Run virt sub test in backgroup"""
     wait_time = float(self.params.get("sub_test_wait_time", 0))
     args = (self.test, self.params, self.env, self.params["sub_type"])
     bg_test = BackgroundTest(run_virt_sub_test, args)
     bg_test.start()
     wait_for(bg_test.is_alive, first=wait_time, step=3, timeout=240)
     return bg_test
Esempio n. 15
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 def run_background_test(self):
     """Run virt sub test in backgroup"""
     wait_time = float(self.params.get("sub_test_wait_time", 0))
     args = (self.test, self.params, self.env, self.params["sub_type"])
     bg_test = BackgroundTest(run_virt_sub_test, args)
     bg_test.start()
     wait_for(bg_test.is_alive, first=wait_time, step=3, timeout=240)
     return bg_test
    def tearDown(self):
        """
        Restore config file, if existed, and restart services
        """
        if os.path.isfile(self.mpath_file):
            shutil.copyfile("%s.bkp" % self.mpath_file, self.mpath_file)
        self.mpath_svc.restart()

        # Need to wait for some time to make sure multipaths are loaded.
        wait.wait_for(self.mpath_svc.status, timeout=10)
    def tearDown(self):
        """
        Restore config file, if existed, and restart services
        """
        if os.path.isfile(self.mpath_file):
            shutil.copyfile("%s.bkp" % self.mpath_file, self.mpath_file)
        self.mpath_svc.restart()

        # Need to wait for some time to make sure multipaths are loaded.
        wait.wait_for(self.mpath_svc.status, timeout=10)
Esempio n. 18
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    def close(self):
        """
        Safely postprocess the container

        :note: It won't remove the container, you need to do it manually
        """
        if self._docker:
            self._docker.sendline("exit")
            # Leave the process up to 10s to finish, then nuke it
            wait_for(lambda: not self._docker.is_alive(), 10)
            self._docker.close()
Esempio n. 19
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    def close(self):
        """
        Safely postprocess the container

        :note: It won't remove the container, you need to do it manually
        """
        if self._docker:
            self._docker.sendline("exit")
            # Leave the process up to 10s to finish, then nuke it
            wait_for(lambda: not self._docker.is_alive(), 10)
            self._docker.close()
Esempio n. 20
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    def disrupt_nodetool_enospc(self, sleep_time=30, all_nodes=False):
        if all_nodes:
            nodes = self.cluster.nodes
        else:
            nodes = [self.target_node]
        self._set_current_disruption('Enospc test on {}'.format([n.name for n in nodes]))

        def search_database_enospc(node):
            """
            Search database log by executing cmd inside node, use shell tool to
            avoid return and process huge data.
            """
            cmd = "journalctl --no-tail --no-pager -u scylla-server.service|grep 'No space left on device'|wc -l"
            result = node.remoter.run(cmd, verbose=True)
            return int(result.stdout)

        def approach_enospc():
            # get the size of free space (default unit: KB)
            result = node.remoter.run("df -l|grep '/var/lib/scylla'")
            free_space_size = result.stdout.split()[3]

            occupy_space_size = int(int(free_space_size) * 90 / 100)
            occupy_space_cmd = 'sudo fallocate -l {}K /var/lib/scylla/occupy_90percent.{}'.format(occupy_space_size, datetime.datetime.now().strftime('%s'))
            self.log.debug('Cost 90% free space on /var/lib/scylla/ by {}'.format(occupy_space_cmd))
            try:
                node.remoter.run(occupy_space_cmd, verbose=True)
            except Exception as details:
                self.log.error(str(details))
            return search_database_enospc(node) > orig_errors

        for node in nodes:
            result = node.remoter.run('cat /proc/mounts')
            if '/var/lib/scylla' not in result.stdout:
                self.log.error("Scylla doesn't use an individual storage, skip enospc test")
                continue

            # check original ENOSPC error
            orig_errors = search_database_enospc(node)
            wait.wait_for(func=approach_enospc,
                          timeout=300,
                          step=5,
                          text='Wait for new ENOSPC error occurs in database')

            self.log.debug('Sleep {} seconds before releasing space to scylla'.format(sleep_time))
            time.sleep(sleep_time)

            self.log.debug('Delete occupy_90percent file to release space to scylla-server')
            node.remoter.run('sudo rm -rf /var/lib/scylla/occupy_90percent.*')

            self.log.debug('Sleep a while before restart scylla-server')
            time.sleep(sleep_time / 2)
            node.remoter.run('sudo systemctl restart scylla-server.service')
            node.wait_db_up()
Esempio n. 21
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 def assert_migration(self, src_vm, dst_vm):
     wait.wait_for(self.migration_finished,
                   timeout=self.timeout,
                   step=0.1,
                   args=(src_vm, ))
     self.assertEqual(
         src_vm.command('query-migrate')['status'], 'completed')
     self.assertEqual(
         dst_vm.command('query-migrate')['status'], 'completed')
     self.assertEqual(dst_vm.command('query-status')['status'], 'running')
     self.assertEqual(
         src_vm.command('query-status')['status'], 'postmigrate')
Esempio n. 22
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    def disrupt_nodetool_enospc(self, sleep_time=30, all_nodes=False):
        if all_nodes:
            nodes = self.cluster.nodes
        else:
            nodes = [self.target_node]
        self._set_current_disruption('Enospc test on {}'.format([n.name for n in nodes]))

        def search_database_enospc(node):
            """
            Search database log by executing cmd inside node, use shell tool to
            avoid return and process huge data.
            """
            cmd = "journalctl --no-tail --no-pager -u scylla-server.service|grep 'No space left on device'|wc -l"
            result = node.remoter.run(cmd, verbose=True)
            return int(result.stdout)

        def approach_enospc():
            # get the size of free space (default unit: KB)
            result = node.remoter.run("df -l|grep '/var/lib/scylla'")
            free_space_size = result.stdout.split()[3]

            occupy_space_size = int(int(free_space_size) * 90 / 100)
            occupy_space_cmd = 'sudo fallocate -l {}K /var/lib/scylla/occupy_90percent.{}'.format(occupy_space_size, datetime.datetime.now().strftime('%s'))
            self.log.debug('Cost 90% free space on /var/lib/scylla/ by {}'.format(occupy_space_cmd))
            try:
                node.remoter.run(occupy_space_cmd, verbose=True)
            except Exception as details:
                self.log.error(str(details))
            return search_database_enospc(node) > orig_errors

        for node in nodes:
            result = node.remoter.run('cat /proc/mounts')
            if '/var/lib/scylla' not in result.stdout:
                self.log.error("Scylla doesn't use an individual storage, skip enospc test")
                continue

            # check original ENOSPC error
            orig_errors = search_database_enospc(node)
            wait.wait_for(func=approach_enospc,
                          timeout=300,
                          step=5,
                          text='Wait for new ENOSPC error occurs in database')

            self.log.debug('Sleep {} seconds before releasing space to scylla'.format(sleep_time))
            time.sleep(sleep_time)

            self.log.debug('Delete occupy_90percent file to release space to scylla-server')
            node.remoter.run('sudo rm -rf /var/lib/scylla/occupy_90percent.*')

            self.log.debug('Sleep a while before restart scylla-server')
            time.sleep(sleep_time / 2)
            node.remoter.run('sudo systemctl restart scylla-server.service')
            node.wait_db_up()
    def try_report_uuid(self):
        uuid_path = '/var/lib/scylla-housekeeping/housekeeping.uuid'
        mark_path = '/var/lib/scylla-housekeeping/housekeeping.uuid.marked'
        cmd = 'curl "https://i6a5h9l1kl.execute-api.us-east-1.amazonaws.com/prod/check_version?uu=%s&mark=scylla"'
        wait.wait_for(lambda: os.path.exists(uuid_path), timeout=30, step=5,
                      text='Waiting for housekeeping.uuid generated')

        if os.path.exists(uuid_path) and not os.path.exists(mark_path):
            with open(uuid_path) as uuid_file:
                uuid = uuid_file.read().strip()
            self.log.debug('housekeeping.uuid is %s', uuid)
            process.run(cmd % uuid, shell=True, verbose=True)
            process.run('sudo -u scylla touch %s' % mark_path, verbose=True)
Esempio n. 24
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 def test_disable_enable_dev(self):
     '''
     Test if disabling and enabling of an adapter works
     '''
     self.disable_enable_dev('d')
     self.is_disabled_enabled_dev('1')
     self.disable_enable_dev('e')
     self.is_disabled_enabled_dev('0')
     device = self.find_device(self.mac_id[0])
     networkinterface = NetworkInterface(device, self.local)
     wait.wait_for(networkinterface.is_link_up, timeout=60)
     if networkinterface.ping_check(self.peer_ip[0], count=5) is not None:
         self.fail("Enabling and disabling of the interface has affected network connectivity")
     self.check_dmesg_error()
Esempio n. 25
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    def test_badly_behaved_sigint(self):
        """
        Make sure avocado can cleanly get out of a loop of badly behaved tests.

        :avocado: tags=parallel:1
        """
        bad_test_basename = ('wontquit-%s' %
                             data_factory.generate_random_string(5))
        bad_test = script.TemporaryScript(bad_test_basename,
                                          BAD_TEST,
                                          'avocado_interrupt_test',
                                          mode=DEFAULT_MODE)
        bad_test.save()
        self.test_module = bad_test.path
        os.chdir(BASEDIR)
        cmd = ('%s run %s --sysinfo=off --job-results-dir %s ' %
               (AVOCADO, self.test_module, self.tmpdir.name))
        proc = subprocess.Popen(cmd.split(),
                                stdout=subprocess.PIPE,
                                stderr=subprocess.STDOUT)

        if not wait.wait_for(lambda: self.has_children(proc), timeout=10):
            process.kill_process_tree(proc.pid)
            self.fail('Avocado did not start the test process.')

        # This test will ignore SIGINT, so it should terminate
        # when we send the second SIGINT.
        os.kill(proc.pid, signal.SIGINT)
        # We have to actually wait 2+ seconds until
        # the ignore window is over
        time.sleep(2.5)
        os.kill(proc.pid, signal.SIGINT)

        if not wait.wait_for(lambda: self.is_finished(proc), timeout=30):
            process.kill_process_tree(proc.pid)
            self.fail('Avocado was still running after receiving SIGINT '
                      'twice.')

        self.assertTrue(
            wait.wait_for(self._no_test_in_process_table, timeout=10),
            'Avocado left processes behind.')

        output = proc.stdout.read()
        # Make sure the Interrupted requested sentence is there
        self.assertIn(
            b'Interrupt requested. Waiting 2 seconds for test to '
            b'finish (ignoring new Ctrl+C until then)', output)
        # Make sure the Killing test subprocess message did appear
        self.assertIn(b'Killing test subprocess', output)
Esempio n. 26
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 def rmc_service_start(self, server):
     '''
     Start RMC services which is needed for LPM migration
     '''
     for svc in ["-z", "-A", "-p"]:
         process.run('/opt/rsct/bin/rmcctrl %s' % svc,
                     shell=True,
                     sudo=True)
     if not wait.wait_for(self.is_RMC_active(server), timeout=60):
         process.run('/usr/sbin/rsct/install/bin/recfgct',
                     shell=True,
                     sudo=True)
         process.run('/opt/rsct/bin/rmcctrl -p', shell=True, sudo=True)
         if not wait.wait_for(self.is_RMC_active(server), timeout=300):
             self.fail("ERROR : RMC connection is down !!")
Esempio n. 27
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    def _check_install_key_required(self):
        def _safe_ssh_ping():
            try:
                self._ssh_ping()
                return True
            except (SSHPermissionDeniedError, process.CmdError):
                return None

        if not self.key_file and self.password:
            try:
                self._ssh_ping()
            except (SSHPermissionDeniedError, process.CmdError):
                copy_id_cmd = ('ssh-copy-id -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -p %s %s@%s' %
                               (self.port, self.user, self.hostname))
                while True:
                    try:
                        expect = aexpect.Expect(copy_id_cmd)
                        expect.read_until_output_matches(['.*password:'******'Waiting for password-less SSH')

                if result is None:
                    raise SSHPermissionDeniedError('Unable to configure '
                                                   'password less SSH. '
                                                   'Output of %s: %s' %
                                                   (copy_id_cmd,
                                                    expect.get_output()))
                else:
                    self.log.info('Successfully configured SSH key auth')
Esempio n. 28
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 def module_load_unload(self, mod1):
     """
     Unloading and loading the given module
     """
     if linux_modules.module_is_loaded(mod1) is False:
         linux_modules.load_module(mod1)
         time.sleep(self.load_unload_sleep_time)
     sub_mod = linux_modules.get_submodules(mod1)
     if sub_mod:
         for mod in sub_mod:
             linux_modules.unload_module(mod)
             if linux_modules.module_is_loaded(mod) is True:
                 self.error_modules.append(mod)
                 break
     if linux_modules.unload_module(mod1) is False:
         self.fail("Unloading Module %s failed" % mod1)
     time.sleep(self.load_unload_sleep_time)
     cmd = "%s %s=%s" % (mod1, self.param_name, self.param_value)
     if linux_modules.load_module(cmd) is False:
         self.fail("Param %s = Value %s Failed for Module %s" %
                   (self.param_name, self.param_value, mod1))
     time.sleep(self.load_unload_sleep_time)
     if self.sysfs_chk:
         if self.sysfs_value_check() is False:
             self.fail("Sysfs check failed ")
     if not wait.wait_for(configure_network.is_interface_link_up,
                          timeout=120,
                          args=[self.ifaces]):
         self.fail("Link up of interface is taking longer than 120s")
     if not configure_network.ping_check(
             self.ifaces, self.peer, '1000', flood=True):
         self.fail("ping test failed")
 def test_vnic_dlpar(self):
     '''
     Perform vNIC device hot add and hot remove using drmgr command
     '''
     for slot_no, device_ip, netmask, mac, peer_ip in zip(
             self.slot_num, self.device_ip, self.netmask, self.mac_id,
             self.peer_ip):
         self.update_backing_devices(slot_no)
         dev_id = self.find_device_id(mac)
         device_name = self.find_device(mac)
         slot = self.find_virtual_slot(dev_id)
         if slot:
             try:
                 for _ in range(self.num_of_dlpar):
                     self.drmgr_vnic_dlpar('-r', slot)
                     self.drmgr_vnic_dlpar('-a', slot)
                     self.wait_intrerface(device_name)
             except CmdError as details:
                 self.log.debug(str(details))
                 self.fail("dlpar operation did not complete")
             device = self.find_device(mac)
             networkinterface = NetworkInterface(device, self.local)
             try:
                 networkinterface.add_ipaddr(device_ip, netmask)
             except Exception:
                 networkinterface.save(device_ip, netmask)
             if not wait.wait_for(networkinterface.is_link_up, timeout=120):
                 self.fail("Unable to bring up the link on the Network \
                           virtualized device")
             if networkinterface.ping_check(peer_ip, count=5) is not None:
                 self.fail("dlpar has affected Network connectivity")
         else:
             self.fail("slot not found")
     self.check_dmesg_error()
Esempio n. 30
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    def setUp(self):
        """
        Set up.
        """
        self.iface = self.params.get("interface", default="")
        self.count = self.params.get("count", default="500")
        self.nping_count = self.params.get("nping_count", default="")
        self.peer_ip = self.params.get("peer_ip", default="")
        self.drop = self.params.get("drop_accepted", default="10")
        self.host_ip = self.params.get("host_ip", default="")
        self.option = self.params.get("option", default='')
        # Check if interface exists in the system
        interfaces = netifaces.interfaces()
        if self.iface not in interfaces:
            self.cancel("%s interface is not available" % self.iface)
        if not self.peer_ip:
            self.cancel("peer ip should specify in input")
        self.ipaddr = self.params.get("host_ip", default="")
        self.netmask = self.params.get("netmask", default="")
        configure_network.set_ip(self.ipaddr, self.netmask, self.iface)
        if not wait.wait_for(configure_network.is_interface_link_up,
                             timeout=120,
                             args=[self.iface]):
            self.cancel(
                "Link up of interface is taking longer than 120 seconds")
        self.peer_user = self.params.get("peer_user", default="root")
        self.peer_password = self.params.get("peer_password",
                                             '*',
                                             default="None")
        self.mtu = self.params.get("mtu", default=1500)
        self.peerinfo = PeerInfo(self.peer_ip,
                                 peer_user=self.peer_user,
                                 peer_password=self.peer_password)
        self.peer_interface = self.peerinfo.get_peer_interface(self.peer_ip)
        if not self.peerinfo.set_mtu_peer(self.peer_interface, self.mtu):
            self.cancel("Failed to set mtu in peer")
        if not configure_network.set_mtu_host(self.iface, self.mtu):
            self.cancel("Failed to set mtu in host")

        # Install needed packages
        smm = SoftwareManager()
        detected_distro = distro.detect()
        pkgs = ['tcpdump', 'flex', 'bison', 'gcc', 'gcc-c++', 'nmap']
        for pkg in pkgs:
            if not smm.check_installed(pkg) and not smm.install(pkg):
                self.cancel("%s package Can not install" % pkg)
        if detected_distro.name == "SuSE":
            self.nmap = os.path.join(self.teststmpdir, 'nmap')
            nmap_download = self.params.get("nmap_download",
                                            default="https:"
                                            "//nmap.org/dist/"
                                            "nmap-7.80.tar.bz2")
            tarball = self.fetch_asset(nmap_download)
            self.version = os.path.basename(tarball.split('.tar')[0])
            self.n_map = os.path.join(self.nmap, self.version)
            archive.extract(tarball, self.nmap)
            os.chdir(self.n_map)
            process.system('./configure ppc64le', shell=True)
            build.make(self.n_map)
            process.system('./nping/nping -h', shell=True)
 def run_process_to_use_mnt(self):
     proc = process.SubProcess(self.use_mnt_cmd, sudo=True)
     proc.start()
     self.assertTrue(wait.wait_for(lambda: os.path.exists(self.use_mnt_file),
                                   timeout=1, first=0.1, step=0.1),
                     "File was not created within mountpoint")
     return proc
Esempio n. 32
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 def run_process_to_use_mnt(self):
     proc = process.SubProcess(self.use_mnt_cmd, sudo=True)
     proc.start()
     self.assertTrue(wait.wait_for(lambda: os.path.exists(self.use_mnt_file),
                                   timeout=1, first=0.1, step=0.1),
                     "File was not created within mountpoint")
     return proc
Esempio n. 33
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        def is_recovered():
            """
            Checks if the block device adapter is recovers all its disks/paths
            properly after hotplug of adapter.
            Returns True if all disks/paths back online after adapter added
            Back, else False.
            """
            def is_path_online():
                path_stat = list(multipath.get_path_status(curr_path))
                if path_stat[0] != 'active' or path_stat[2] != 'ready':
                    return False
                return True

            curr_path = ''
            err_disks = []
            if pci.get_pci_class_name(pci_addr) == 'fc_host':
                disks = pci.get_disks_in_pci_address(pci_addr)
                for disk in disks:
                    curr_path = disk.split("/")[-1]
                    self.log.info("curr_path=%s" % curr_path)
                    if not wait.wait_for(is_path_online, timeout=10):
                        self.log.info("%s failed to recover after add" % disk)
                        err_disks.append(disk)

            if err_disks:
                self.log.info("few paths failed to recover : %s" % err_disks)
                return False
            return True
 def test_add(self):
     '''
     Network virtualized device add operation
     '''
     for slot, mac, sriov_port, adapter_id, device_ip, netmask in zip(
             self.slot_num, self.mac_id, self.sriov_port,
             self.backing_adapter_id, self.device_ip, self.netmask):
         if not self.check_slot_availability(slot):
             self.fail("Slot does not exist")
         self.device_add_remove(slot, mac, sriov_port, adapter_id, 'add')
         self.interface_naming(mac, slot)
         output = self.list_device(slot)
         if 'slot_num=%s' % slot not in str(output):
             self.log.debug(output)
             self.fail("lshwres fails to list Network virtualized device \
                        after add operation")
         if mac not in str(output):
             self.log.debug(output)
             self.fail("MAC address in HMC differs")
         if not self.find_device(mac):
             self.fail("MAC address differs in linux")
         device = self.find_device(mac)
         networkinterface = NetworkInterface(device, self.local)
         try:
             networkinterface.add_ipaddr(device_ip, netmask)
             networkinterface.save(device_ip, netmask)
         except Exception:
             networkinterface.save(device_ip, netmask)
         networkinterface.bring_up()
         if not wait.wait_for(networkinterface.is_link_up, timeout=120):
             self.fail("Unable to bring up the link on the Network \
                    virtualized device")
     self.check_dmesg_error()
 def wait_services_up(self):
     service_start_timeout = 900
     output = wait.wait_for(func=self._scylla_service_is_up,
                            timeout=service_start_timeout, step=5)
     if output is None:
         e_msg = 'Scylla service does not appear to be up after %s s' % service_start_timeout
         raise StartServiceError(e_msg)
Esempio n. 36
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    def delete_raid(self):
        """
        it checks for existing of raid and deletes it if exists
        """
        self.log.info("deleting Sraid %s" % self.raid_name)

        def is_raid_deleted():
            self.sw_raid.stop()
            self.sw_raid.clear_superblock()
            self.log.info("checking for raid metadata")
            cmd = "wipefs -af %s" % self.disk
            process.system(cmd, shell=True, ignore_status=True)
            if self.sw_raid.exists():
                return False
            return True

        self.log.info("checking lvm_metadata on %s" % self.raid_name)
        cmd = 'blkid -o value -s TYPE %s' % self.raid_name
        out = process.system_output(cmd, shell=True,
                                    ignore_status=True).decode("utf-8")
        if out == 'LVM2_member':
            cmd = "wipefs -af %s" % self.raid_name
            process.system(cmd, shell=True, ignore_status=True)
        if wait.wait_for(is_raid_deleted, timeout=10):
            self.log.info("software raid  %s deleted" % self.raid_name)
        else:
            self.err_mesg.append("failed to delete sraid %s" % self.raid_name)
Esempio n. 37
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    def mpath_state_check(self, ports, state1, state2):
        '''
        checking mpath disk status after disabling the switch port
        '''
        curr_path = ''
        err_paths = []

        def is_path_online():
            path_stat = multipath.get_path_status(curr_path)
            if path_stat[0] != state1 or path_stat[2] != state2:
                return False
            return True

        for port in ports:
            paths = self.get_paths(self.dic[port])
            self.log.info("verify %s path status for port %s in %s", state1,
                          port, ports)
            for path in paths:
                curr_path = path
                if not wait.wait_for(is_path_online, timeout=10):
                    err_paths.append("%s:%s" % (port, curr_path))
        if err_paths:
            self.error("following paths not %s: %s" % (state1, err_paths))
        else:
            self.log.info("%s path verification is success", state1)
Esempio n. 38
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    def migrate(self, protocol='tcp'):
        def migrate_complete():
            mig_info = self.qmp("query-migrate")
            mig_status = mig_info['return']['status']
            if mig_status == 'completed':
                self.log("Migration successful")
                return True
            elif mig_status == 'failed':
                raise exceptions.TestFail("Migration of %s failed" % self)
            return False

        clone_params = copy.copy(self.params)
        clone = self.clone(params=clone_params, preserve_uuid=True)
        migration_port = clone.devices.add_incoming(protocol)
        self._screendump_thread_terminate(migrate=True)
        clone.power_on()
        uri = "%s:localhost:%d" % (protocol, migration_port)
        self.qmp("migrate", uri=uri)
        migrate_timeout = self.params.get('timeout',
                                          '/plugins/virt/qemu/migrate/*')
        migrate_result = wait.wait_for(migrate_complete, timeout=float(migrate_timeout),
                                       text='Waiting for migration to complete')
        if migrate_result is None:
            raise exceptions.TestFail("Migration of %s did not complete after %s s" %
                                      (self, migrate_timeout))

        old_vm = VM()
        old_vm.__dict__ = self.__dict__
        self.__dict__ = clone.__dict__
        old_vm.power_off(migrate=True)
Esempio n. 39
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    def migrate(self, protocol='tcp'):
        def migrate_complete():
            mig_info = self.qmp("query-migrate")
            mig_status = mig_info['return']['status']
            if mig_status == 'completed':
                self.log("Migration successful")
                return True
            elif mig_status == 'failed':
                raise exceptions.TestFail("Migration of %s failed" % self)
            return False

        clone_params = self.params.copy()
        clone_params['qemu_bin'] = path.get_qemu_dst_binary(clone_params)
        clone = self.clone(params=clone_params, preserve_uuid=True)
        migration_port = clone.devices.add_incoming(protocol)
        self._screendump_thread_terminate(migrate=True)
        clone.power_on()
        uri = "%s:localhost:%d" % (protocol, migration_port)
        self.qmp("migrate", uri=uri)
        migrate_timeout = self.params.get('avocado.args.run.migrate.timeout',
                                          defaults.migrate_timeout)
        migrate_result = wait.wait_for(
            migrate_complete,
            timeout=migrate_timeout,
            text='Waiting for migration to complete')
        if migrate_result is None:
            raise exceptions.TestFail(
                "Migration of %s did not complete after %s s" %
                (self, migrate_timeout))

        old_vm = VM()
        old_vm.__dict__ = self.__dict__
        self.__dict__ = clone.__dict__
        old_vm.power_off(migrate=True)
Esempio n. 40
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    def _check_install_key_required(self):
        def _safe_ssh_ping():
            try:
                self._ssh_ping()
                return True
            except (SSHPermissionDeniedError, process.CmdError):
                return None

        if not self.key_file and self.password:
            try:
                self._ssh_ping()
            except (SSHPermissionDeniedError, process.CmdError):
                copy_id_cmd = ('ssh-copy-id -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -p %s %s@%s' %
                               (self.port, self.user, self.hostname))
                while True:
                    try:
                        expect = aexpect.Expect(copy_id_cmd)
                        expect.read_until_output_matches(['.*password:'******'Waiting for password-less SSH')

                if result is None:
                    raise SSHPermissionDeniedError('Unable to configure '
                                                   'password less SSH. '
                                                   'Output of %s: %s' %
                                                   (copy_id_cmd,
                                                    expect.get_output()))
                else:
                    self.log.info('Successfully configured SSH key auth')
Esempio n. 41
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 def test_migration_with_tcp_localhost(self):
     source_vm = self.get_vm()
     dest_uri = 'tcp:localhost:%u' % self._get_free_port()
     dest_vm = self.get_vm('-incoming', dest_uri)
     dest_vm.launch()
     source_vm.launch()
     source_vm.qmp('migrate', uri=dest_uri)
     wait.wait_for(
         self.migration_finished,
         timeout=self.timeout,
         step=0.1,
         args=(source_vm,)
     )
     self.assertEqual(dest_vm.command('query-migrate')['status'], 'completed')
     self.assertEqual(source_vm.command('query-migrate')['status'], 'completed')
     self.assertEqual(dest_vm.command('query-status')['status'], 'running')
     self.assertEqual(source_vm.command('query-status')['status'], 'postmigrate')
Esempio n. 42
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    def test_badly_behaved_sigint(self):
        """
        Make sure avocado can cleanly get out of a loop of badly behaved tests.
        """
        bad_test_basename = ('wontquit-%s' %
                             data_factory.generate_random_string(5))
        bad_test = script.TemporaryScript(bad_test_basename, BAD_TEST,
                                          'avocado_interrupt_test',
                                          mode=DEFAULT_MODE)
        bad_test.save()
        self.test_module = bad_test.path
        os.chdir(BASEDIR)
        cmd = ('%s run %s --sysinfo=off --job-results-dir %s ' %
               (AVOCADO, self.test_module, self.tmpdir))
        self.proc = subprocess.Popen(cmd.split(),
                                     stdout=subprocess.PIPE,
                                     stderr=subprocess.STDOUT)

        if not wait.wait_for(self._has_children, timeout=10):
            process.kill_process_tree(self.proc.pid)
            self.fail('Avocado did not start the test process.')

        # This test will ignore SIGINT, so it should terminate
        # when we send the second SIGINT.
        os.kill(self.proc.pid, signal.SIGINT)
        # We have to actually wait 2+ seconds until
        # the ignore window is over
        time.sleep(2.5)
        os.kill(self.proc.pid, signal.SIGINT)

        if not wait.wait_for(self._is_finished, timeout=10):
            process.kill_process_tree(self.proc.pid)
            self.fail('Avocado was still running after receiving SIGINT '
                      'twice.')

        self.assertTrue(wait.wait_for(self._no_test_in_process_table,
                        timeout=10), 'Avocado left processes behind.')

        output = self.proc.stdout.read()
        # Make sure the Interrupted requested sentence is there
        self.assertIn(b'Interrupt requested. Waiting 2 seconds for test to '
                      b'finish (ignoring new Ctrl+C until then)', output)
        # Make sure the Killing test subprocess message did appear
        self.assertIn(b'Killing test subprocess', output)
Esempio n. 43
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    def test_badly_behaved(self):
        """
        Make sure avocado can cleanly get out of a loop of badly behaved tests.
        """
        bad_test_basename = "wontquit-%s" % data_factory.generate_random_string(5)
        bad_test = script.TemporaryScript(bad_test_basename, BAD_TEST, "avocado_interrupt_test", mode=0755)
        bad_test.save()

        os.chdir(basedir)
        cmd_line = "./scripts/avocado run --sysinfo=off --job-results-dir %s " "%s %s %s" % (
            self.tmpdir,
            bad_test.path,
            bad_test.path,
            bad_test.path,
        )
        proc = aexpect.Expect(command=cmd_line, linesep="")
        proc.read_until_last_line_matches(os.path.basename(bad_test.path))
        proc.sendline("\x03")
        proc.read_until_last_line_matches(
            "Interrupt requested. Waiting 2 " "seconds for test to finish " "(ignoring new Ctrl+C until then)"
        )
        # We have to actually wait 2 seconds until the ignore window is over
        time.sleep(2)
        proc.sendline("\x03")
        proc.read_until_last_line_matches("TIME       : %d s")
        wait.wait_for(lambda: not proc.is_alive(), timeout=1)

        # Make sure the bad test will be really gone from the process table
        def wait_until_no_badtest():
            bad_test_processes = []
            for p in psutil.pids():
                p_obj = None
                try:
                    p_obj = psutil.Process(p)
                except psutil.NoSuchProcess:
                    pass
                if p_obj is not None:
                    if bad_test.path in " ".join(psutil.Process(p).cmdline()):
                        bad_test_processes.append(p_obj)
            return len(bad_test_processes) == 0

        wait.wait_for(wait_until_no_badtest, timeout=2)
        # Make sure the Killing test subprocess message did appear
        self.assertIn("Killing test subprocess", proc.get_output())
Esempio n. 44
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    def test_well_behaved(self):
        """
        Make sure avocado can cleanly get out of a loop of well behaved tests.
        """
        good_test_basename = "goodtest-%s.py" % data_factory.generate_random_string(5)
        good_test = script.TemporaryScript(good_test_basename, GOOD_TEST, "avocado_interrupt_test", mode=0755)
        good_test.save()

        os.chdir(basedir)
        cmd_line = "./scripts/avocado run --sysinfo=off --job-results-dir %s " "%s %s %s" % (
            self.tmpdir,
            good_test.path,
            good_test.path,
            good_test.path,
        )
        proc = aexpect.Expect(command=cmd_line, linesep="")
        proc.read_until_last_line_matches(os.path.basename(good_test.path))
        proc.sendline("\x03")
        proc.read_until_last_line_matches("TIME       : %d s")
        wait.wait_for(lambda: not proc.is_alive(), timeout=1)

        # Make sure the good test will be really gone from the process table
        def wait_until_no_goodtest():
            good_test_processes = []
            for p in psutil.pids():
                p_obj = None
                try:
                    p_obj = psutil.Process(p)
                except psutil.NoSuchProcess:
                    pass
                if p_obj is not None:
                    if good_test.path in " ".join(psutil.Process(p).cmdline()):
                        good_test_processes.append(p_obj)
            return len(good_test_processes) == 0

        wait.wait_for(wait_until_no_goodtest, timeout=2)
        # Make sure the Killing test subprocess message is not there
        self.assertNotIn("Killing test subprocess", proc.get_output())
        # Make sure the Interrupted requested sentence is there
        self.assertIn(
            "Interrupt requested. Waiting 2 seconds for test to " "finish (ignoring new Ctrl+C until then)",
            proc.get_output(),
        )
Esempio n. 45
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    def test_well_behaved_sigint(self):
        """
        Make sure avocado can cleanly get out of a loop of well behaved tests.
        """
        good_test_basename = ('goodtest-%s.py' %
                              data_factory.generate_random_string(5))
        good_test = script.TemporaryScript(good_test_basename, GOOD_TEST,
                                           'avocado_interrupt_test',
                                           mode=DEFAULT_MODE)
        good_test.save()
        self.test_module = good_test.path
        os.chdir(basedir)
        cmd = ('%s run %s --sysinfo=off --job-results-dir %s ' %
               (AVOCADO, self.test_module, self.tmpdir))
        self.proc = subprocess.Popen(cmd.split(),
                                     stdout=subprocess.PIPE,
                                     stderr=subprocess.STDOUT)

        if not wait.wait_for(self._has_children, timeout=10):
            process.kill_process_tree(self.proc.pid)
            self.fail('Avocado did not start the test process.')

        # This test will not ignore SIGINT, so it should
        # terminate right away.
        os.kill(self.proc.pid, signal.SIGINT)

        if not wait.wait_for(self._is_finished, timeout=10):
            process.kill_process_tree(self.proc.pid)
            self.fail('Avocado was still running after receiving SIGINT '
                      'twice.')

        self.assertTrue(wait.wait_for(self._no_test_in_process_table,
                        timeout=10), 'Avocado left processes behind.')

        output = self.proc.stdout.read()
        # Make sure the Interrupted requested sentence is there
        self.assertIn(b'Interrupt requested. Waiting 2 seconds for test to '
                      b'finish (ignoring new Ctrl+C until then)', output)
        # Make sure the Killing test subprocess message is not there
        self.assertNotIn(b'Killing test subprocess', output)
Esempio n. 46
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    def disrupt_abort_repair(self):
        """
        Start repair target_node in background, then try to abort the repair streaming.
        """
        self._set_current_disruption('AbortRepairMonkey')
        self.log.debug("Start repair target_node in background")
        thread1 = threading.Thread(target=self.repair_nodetool_repair)
        thread1.start()

        def repair_streaming_exists():
            result = self.target_node.remoter.run('curl -X GET --header "Content-Type: application/json" --header "Accept: application/json" "http://127.0.0.1:10000/stream_manager/stream_manager/"')
            return 'repair-' in result.stdout

        wait.wait_for(func=repair_streaming_exists,
                      timeout=10,
                      step=0.01,
                      text='Wait for repair starts')

        self.log.debug("Abort repair streaming by storage_service/force_terminate_repair API")
        self.target_node.remoter.run('curl -X GET --header "Content-Type: application/json" --header "Accept: application/json" "http://127.0.0.1:10000/storage_service/force_terminate_repair"')
        thread1.join(timeout=120)

        self.log.debug("Execute a complete repair for target node")
        self.repair_nodetool_repair()
Esempio n. 47
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    def test_well_behaved_sigterm(self):
        """
        Make sure avocado can cleanly get out of a loop of well behaved tests.
        """
        good_test_basename = ('goodtest-%s.py' %
                              data_factory.generate_random_string(5))
        good_test = script.TemporaryScript(good_test_basename, GOOD_TEST,
                                           'avocado_interrupt_test',
                                           mode=DEFAULT_MODE)
        good_test.save()
        self.test_module = good_test.path
        os.chdir(BASEDIR)
        cmd = ('%s run %s --sysinfo=off --job-results-dir %s ' %
               (AVOCADO, self.test_module, self.tmpdir))
        self.proc = subprocess.Popen(cmd.split(),
                                     stdout=subprocess.PIPE,
                                     stderr=subprocess.STDOUT)

        if not wait.wait_for(self._has_children, timeout=10):
            process.kill_process_tree(self.proc.pid)
            self.fail('Avocado did not start the test process.')

        # This test should be terminated when the main process
        # receives a SIGTERM.
        os.kill(self.proc.pid, signal.SIGTERM)

        if not wait.wait_for(self._is_finished, timeout=10):
            process.kill_process_tree(self.proc.pid)
            self.fail('Avocado was still running after receiving SIGINT '
                      'twice.')

        self.assertTrue(wait.wait_for(self._no_test_in_process_table,
                        timeout=10), 'Avocado left processes behind.')

        # Make sure the Interrupted test sentence is there
        self.assertIn(b'Terminated\n', self.proc.stdout.read())
Esempio n. 48
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    def wait_for_stop(self, timeout=60, step=0.1):
        """
        Wait for libvirtd to stop.

        :param timeout: Max wait time
        :param step: Checking interval
        """
        logging.debug('Waiting for libvirtd to stop')
        if self.gdb:
            return self.gdb.wait_for_stop(timeout=timeout)
        else:
            return wait.wait_for(
                lambda: not self.running,
                timeout=timeout,
                step=step,
            )
    def test(self):
        detected_distro = distro.detect()
        parser = ConfigParser.ConfigParser()
        config_file = self.datadir + '/services.cfg'
        parser.read(config_file)
        services_list = parser.get(detected_distro.name, 'services').split(',')
        if 'PowerNV' in open('/proc/cpuinfo', 'r').read():
            services_list.extend(['opal_errd', 'opal-prd'])
        else:
            services_list.extend(['rtas_errd'])
        services_failed = []
        runner = process.run

        for service in services_list:
            service_obj = SpecificServiceManager(service, runner)
            self.log.info("Checking %s service" % service)
            if service_obj.is_enabled() is False:
                self.log.info("%s service Not Found !!!" % service)
                services_failed.append(service)
                continue
            original_status = service_obj.status()
            if original_status is True:
                service_obj.stop()
                if not wait_for(lambda: not service_obj.status(), 10):
                    self.log.info("Fail to stop %s service" % service)
                    services_failed.append(service)
                    continue
                service_obj.start()
                wait_for(service_obj.status, 10)
            else:
                service_obj.start()
                if not wait_for(service_obj.status, 10):
                    self.log.info("Fail to start %s service" % service)
                    services_failed.append(service)
                    continue
                service_obj.stop()
                wait_for(lambda: not service_obj.status(), 10)
            if not service_obj.status() is original_status:
                self.log.info("Fail to restore original status of the %s"
                              "service" % service)
                services_failed.append(service)

        if services_failed:
            self.fail("List of services failed: %s" % services_failed)
        else:
            self.log.info("All Services Passed the ON/OFF test")
Esempio n. 50
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 def run_background_test(self):
     args = (self.test, self.params, self.env, self.params["sub_type"])
     bg_test = BackgroundTest(run_virt_sub_test, args)
     bg_test.start()
     wait_for(bg_test.is_alive, first=10, step=3, timeout=100)
     return bg_test
Esempio n. 51
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    def run_suite(self, params_list):
        """
        Run one or more tests and report with test result.

        :param params_list: a list of param dicts.

        :return: a list of test failures.
        """
        failures = []
        self.sysinfo.start_job_hook()
        self.result.start_tests()
        q = queues.SimpleQueue()
        test_suite = self.job.test_loader.discover(params_list, q)

        for test_factory in test_suite:
            p = multiprocessing.Process(target=self.run_test,
                                        args=(test_factory, q,))

            cycle_timeout = 1
            time_started = time.time()
            test_state = None

            p.start()

            early_state = q.get()
            # At this point, the test is already initialized and we know
            # for sure if there's a timeout set.
            if 'timeout' in early_state['params'].keys():
                timeout = float(early_state['params']['timeout'])
            else:
                timeout = self.DEFAULT_TIMEOUT

            time_deadline = time_started + timeout

            ctrl_c_count = 0
            ignore_window = 2.0
            ignore_time_started = time.time()
            stage_1_msg_displayed = False
            stage_2_msg_displayed = False

            while True:
                try:
                    if time.time() >= time_deadline:
                        logging.error("timeout")
                        os.kill(p.pid, signal.SIGUSR1)
                        break
                    wait.wait_for(lambda: not q.empty() or not p.is_alive(),
                                  cycle_timeout, step=0.1)
                    if not q.empty():
                        test_state = q.get()
                        if not test_state['running']:
                            break
                        else:
                            self.job.result_proxy.notify_progress(True)
                            if test_state['paused']:
                                msg = test_state['paused_msg']
                                if msg:
                                    self.job.view.notify(event='partial', msg=msg)

                    elif p.is_alive():
                        if ctrl_c_count == 0:
                            self.job.result_proxy.notify_progress()
                    else:
                        break

                except KeyboardInterrupt:
                    time_elapsed = time.time() - ignore_time_started
                    ctrl_c_count += 1
                    if ctrl_c_count == 2:
                        if not stage_1_msg_displayed:
                            k_msg_1 = ("SIGINT sent to tests, waiting for their "
                                       "reaction")
                            k_msg_2 = ("Ignoring Ctrl+C during the next "
                                       "%d seconds so they can try to finish" %
                                       ignore_window)
                            k_msg_3 = ("A new Ctrl+C sent after that will send a "
                                       "SIGKILL to them")
                            self.job.view.notify(event='message', msg=k_msg_1)
                            self.job.view.notify(event='message', msg=k_msg_2)
                            self.job.view.notify(event='message', msg=k_msg_3)
                            stage_1_msg_displayed = True
                        ignore_time_started = time.time()
                    if (ctrl_c_count > 2) and (time_elapsed > ignore_window):
                        if not stage_2_msg_displayed:
                            k_msg_3 = ("Ctrl+C received after the ignore window. "
                                       "Killing all active tests")
                            self.job.view.notify(event='message', msg=k_msg_3)
                            stage_2_msg_displayed = True
                        os.kill(p.pid, signal.SIGKILL)

            # If test_state is None, the test was aborted before it ended.
            if test_state is None:
                if p.is_alive() and wait.wait_for(lambda: not q.empty(),
                                                  cycle_timeout, step=0.1):
                    test_state = q.get()
                else:
                    early_state['time_elapsed'] = time.time() - time_started
                    test_state = self._fill_aborted_test_state(early_state)
                    test_log = logging.getLogger('avocado.test')
                    test_log.error('ERROR %s -> TestAbortedError: '
                                   'Test aborted unexpectedly',
                                   test_state['name'])

            # don't process other tests from the list
            if ctrl_c_count > 0:
                self.job.view.notify(event='minor', msg='')
                break

            self.result.check_test(test_state)
            if not status.mapping[test_state['status']]:
                failures.append(test_state['name'])
        runtime.CURRENT_TEST = None
        self.result.end_tests()
        self.sysinfo.end_job_hook()
        return failures
Esempio n. 52
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    def run_test(self, test_factory, queue, failures, job_deadline=0):
        """
        Run a test instance inside a subprocess.

        :param test_factory: Test factory (test class and parameters).
        :type test_factory: tuple of :class:`avocado.test.Test` and dict.
        :param queue: Multiprocess queue.
        :type queue: :class`multiprocessing.Queue` instance.
        :param failures: Store tests failed.
        :type failures: list.
        :param job_deadline: Maximum time to execute.
        :type job_deadline: int.
        """
        proc = multiprocessing.Process(target=self._run_test,
                                       args=(test_factory, queue,))

        cycle_timeout = 1
        time_started = time.time()
        test_state = None

        proc.start()

        early_state = queue.get()

        if 'load_exception' in early_state:
            self.job.view.notify(event='error',
                                 msg='Avocado crashed during test load. '
                                     'Some reports might have not been '
                                     'generated. Aborting...')
            sys.exit(exit_codes.AVOCADO_FAIL)

        # At this point, the test is already initialized and we know
        # for sure if there's a timeout set.
        timeout = (early_state.get('params', {}).get('timeout') or
                   self.DEFAULT_TIMEOUT)

        test_deadline = time_started + timeout
        if job_deadline > 0:
            deadline = min(test_deadline, job_deadline)
        else:
            deadline = test_deadline

        ctrl_c_count = 0
        ignore_window = 2.0
        ignore_time_started = time.time()
        stage_1_msg_displayed = False
        stage_2_msg_displayed = False
        first = 0.01
        step = 0.1

        while True:
            try:
                if time.time() >= deadline:
                    os.kill(proc.pid, signal.SIGUSR1)
                    break
                wait.wait_for(lambda: not queue.empty() or not proc.is_alive(),
                              cycle_timeout, first, step)
                if not queue.empty():
                    test_state = queue.get()
                    if not test_state['running']:
                        break
                    else:
                        self.job.result_proxy.notify_progress(True)
                        if test_state['paused']:
                            msg = test_state['paused_msg']
                            if msg:
                                self.job.view.notify(event='partial', msg=msg)

                elif proc.is_alive():
                    if ctrl_c_count == 0:
                        self.job.result_proxy.notify_progress()
                else:
                    break
            except KeyboardInterrupt:
                time_elapsed = time.time() - ignore_time_started
                ctrl_c_count += 1
                if ctrl_c_count == 2:
                    if not stage_1_msg_displayed:
                        k_msg_1 = ("SIGINT sent to tests, waiting for their "
                                   "reaction")
                        k_msg_2 = ("Ignoring Ctrl+C during the next "
                                   "%d seconds so they can try to finish" %
                                   ignore_window)
                        k_msg_3 = ("A new Ctrl+C sent after that will send a "
                                   "SIGKILL to them")
                        self.job.view.notify(event='message', msg=k_msg_1)
                        self.job.view.notify(event='message', msg=k_msg_2)
                        self.job.view.notify(event='message', msg=k_msg_3)
                        stage_1_msg_displayed = True
                    ignore_time_started = time.time()
                if (ctrl_c_count > 2) and (time_elapsed > ignore_window):
                    if not stage_2_msg_displayed:
                        k_msg_3 = ("Ctrl+C received after the ignore window. "
                                   "Killing all active tests")
                        self.job.view.notify(event='message', msg=k_msg_3)
                        stage_2_msg_displayed = True
                    os.kill(proc.pid, signal.SIGKILL)

        # If test_state is None, the test was aborted before it ended.
        if test_state is None:
            if proc.is_alive() and wait.wait_for(lambda: not queue.empty(),
                                                 cycle_timeout, first, step):
                test_state = queue.get()
            else:
                early_state['time_elapsed'] = time.time() - time_started
                test_state = self._fill_aborted_test_state(early_state)
                test_log = logging.getLogger('avocado.test')
                test_log.error('ERROR %s -> TestAbortedError: '
                               'Test aborted unexpectedly',
                               test_state['name'])

        # don't process other tests from the list
        if ctrl_c_count > 0:
            self.job.view.notify(event='minor', msg='')

        self.result.check_test(test_state)
        if not status.mapping[test_state['status']]:
            failures.append(test_state['name'])

        if ctrl_c_count > 0:
            return False
        return True
    def test(self):
        """
        Tests Multipath.
        """
        msg = ""
        multipath.form_conf_mpath_file()
        plcy = "path_selector \"%s 0\"" % self.policy
        multipath.form_conf_mpath_file(defaults_extra=plcy)
        for path_dic in self.mpath_list:
            self.log.debug("operating on paths", path_dic["paths"])
            # Path Selector policy
            self.log.info("changing Selector policy")
            for policy in self.policies:
                cmd = "path_selector \"%s 0\"" % policy
                multipath.form_conf_mpath_file(defaults_extra=cmd)
                if multipath.get_policy(path_dic["wwid"]) != policy:
                    msg += "%s for %s fails\n" % (policy, path_dic["wwid"])

            # mutipath -f mpathX
            if not multipath.flush_path(path_dic["name"]):
                msg += "Flush of %s fails\n" % path_dic["name"]
            self.mpath_svc.restart()
            wait.wait_for(self.mpath_svc.status, timeout=10)

            # Blacklisting wwid
            self.log.info("Black listing WWIDs")
            cmd = "wwid %s" % path_dic["wwid"]
            multipath.form_conf_mpath_file(blacklist=cmd, defaults_extra=plcy)
            if multipath.device_exists(path_dic["wwid"]):
                msg += "Blacklist of %s fails\n" % path_dic["wwid"]
            else:
                multipath.form_conf_mpath_file(defaults_extra=plcy)
                if not multipath.device_exists(path_dic["wwid"]):
                    msg += "Recovery of %s fails\n" % path_dic["wwid"]

            # Blacklisting sdX
            self.log.info("Black listing individual paths")
            for disk in path_dic["paths"]:
                cmd = "devnode %s" % disk
                multipath.form_conf_mpath_file(blacklist=cmd,
                                               defaults_extra=plcy)
                if disk in multipath.get_paths(path_dic["wwid"]):
                    msg += "Blacklist of %s fails\n" % disk
            multipath.form_conf_mpath_file(defaults_extra=plcy)

            # Failing and reinstating individual paths eg: sdX
            self.log.info(" Failing and reinstating the individual paths")
            for path in path_dic["paths"]:
                if multipath.fail_path(path) is False:
                    msg += "test failed while failing %s\n" % path
                elif multipath.reinstate_path(path) is False:
                    msg += "test failed while reinstating %s\n" % path
            self.mpath_svc.restart()
            wait.wait_for(self.mpath_svc.status, timeout=10)

            # Failing n-1 paths for short time and reinstating back
            self.log.info("Failing and reinstating the n-1 paths")
            for path in path_dic['paths'][:-1]:
                if multipath.fail_path(path) is False:
                    msg += "%s did not failed in n-1 path fail\n" % path

            time.sleep(180)
            for path in path_dic['paths'][:-1]:
                if multipath.reinstate_path(path) is False:
                    msg += "%s failed to recover in n-1 paths fails\n" % path
            self.mpath_svc.restart()
            wait.wait_for(self.mpath_svc.status, timeout=10)

            # Failing all paths for short time and reinstating back
            self.log.info("Failing and reinstating the All paths")
            for path in path_dic['paths']:
                if multipath.fail_path(path) is False:
                    msg += "%s did not failed in all paths fail\n" % path

            time.sleep(180)
            for path in path_dic['paths']:
                if multipath.reinstate_path(path) is False:
                    msg += "%s did not recovered  in all path fail\n" % path
            self.mpath_svc.restart()
            wait.wait_for(self.mpath_svc.status, timeout=10)

        # Print errors
        if msg:
            self.fail("Some tests failed. Find details below:\n%s" % msg)
    def test(self):
        detected_distro = distro.detect()
        parser = ConfigParser.ConfigParser()
        parser.read(self.get_data('services.cfg'))
        services_list = parser.get(detected_distro.name, 'services').split(',')

        smm = SoftwareManager()
        deps = []

        if detected_distro.name == 'SuSE':
            deps.extend(['ppc64-diag', 'libvirt-daemon'])
            if detected_distro.version >= 15:
                services_list.append('firewalld')
            else:
                services_list.append('SuSEfirewall2')
        elif detected_distro.name == 'Ubuntu':
            deps.extend(['opal-prd'])
            if detected_distro.version >= 17:
                services_list.remove('networking')

        for package in deps:
            if not smm.check_installed(package) and not smm.install(package):
                self.cancel(' %s is needed for the test to be run' % package)

        if 'PowerNV' in open('/proc/cpuinfo', 'r').read():
            services_list.extend(['opal_errd', 'opal-prd'])
            if os.path.exists('/proc/device-tree/bmc'):
                services_list.remove('opal_errd')
        else:
            services_list.extend(['rtas_errd'])
        services_failed = []
        runner = process.run

        for service in services_list:
            service_obj = SpecificServiceManager(service, runner)
            self.log.info("Checking %s service" % service)
            if service_obj.is_enabled() is False:
                self.log.info("%s service Not Found !!!" % service)
                services_failed.append(service)
                continue
            original_status = service_obj.status()
            if original_status is True:
                service_obj.stop()
                if not wait_for(lambda: not service_obj.status(), 10):
                    self.log.info("Fail to stop %s service" % service)
                    services_failed.append(service)
                    continue
                service_obj.start()
                wait_for(service_obj.status, 10)
            else:
                service_obj.start()
                if not wait_for(service_obj.status, 10):
                    self.log.info("Fail to start %s service" % service)
                    services_failed.append(service)
                    continue
                service_obj.stop()
                wait_for(lambda: not service_obj.status(), 10)
            if not service_obj.status() is original_status:
                self.log.info("Fail to restore original status of the %s"
                              "service" % service)
                services_failed.append(service)

        if services_failed:
            self.fail("List of services failed: %s" % services_failed)
        else:
            self.log.info("All Services Passed the ON/OFF test")
    def setUp(self):
        """
        Set up.
        """
        self.policy = self.params.get('policy', default='service-time')
        self.policies = ["service-time", "round-robin", "queue-length"]
        # We will remove and add the policy back, so that this becomes
        # the last member of the list. This is done so that in the
        # policy change test later, this policy is set in the last
        # iteration.
        self.policies.remove(self.policy)
        self.policies.append(self.policy)
        # Install needed packages
        dist = distro.detect()
        pkg_name = ""
        svc_name = ""
        if dist.name == 'Ubuntu':
            pkg_name += "multipath-tools"
            svc_name = "multipath-tools"
        elif dist.name == 'SuSE':
            pkg_name += "multipath-tools"
            svc_name = "multipathd"
        else:
            pkg_name += "device-mapper-multipath"
            svc_name = "multipathd"

        smm = SoftwareManager()
        if not smm.check_installed(pkg_name) and not smm.install(pkg_name):
            self.cancel("Can not install %s" % pkg_name)

        # Check if given multipath devices are present in system
        self.wwids = self.params.get('wwids', default='').split(',')
        system_wwids = multipath.get_multipath_wwids()
        wwids_to_remove = []
        for wwid in self.wwids:
            if wwid not in system_wwids:
                self.log.info("%s not present in the system" % wwid)
                wwids_to_remove.append(wwid)
        for wwid in wwids_to_remove:
            self.wwids.remove(wwid)
        if self.wwids == []:
            self.cancel("No Multipath Devices Given")

        # Create service object
        self.mpath_svc = service.SpecificServiceManager(svc_name)
        self.mpath_svc.restart()
        wait.wait_for(self.mpath_svc.status, timeout=10)

        # Take a backup of current config file
        self.mpath_file = "/etc/multipath.conf"
        if os.path.isfile(self.mpath_file):
            shutil.copyfile(self.mpath_file, "%s.bkp" % self.mpath_file)

        self.mpath_list = []

        # Find all details of multipath devices
        for wwid in self.wwids:
            if wwid not in process.system_output('multipath -ll',
                                                 ignore_status=True,
                                                 shell=True):
                continue
            self.mpath_dic = {}
            self.mpath_dic["wwid"] = wwid
            self.mpath_dic["name"] = multipath.get_mpath_name(wwid)
            self.mpath_dic["paths"] = multipath.get_paths(wwid)
            self.mpath_dic["policy"] = multipath.get_policy(wwid)
            self.mpath_dic["size"] = multipath.get_size(wwid)
            self.mpath_list.append(self.mpath_dic)
        pprint(self.mpath_list)