示例#1
0
 def setUp(self):
     util.set_process_logfile_prefix( 'TestBasicOp_%s' % self._testMethodName )
     ret = default_cluster.initialize_starting_up_smr_before_redis(self.cluster)
     if ret is not 0:
         util.log('failed to test_basic_op.initialize')
         default_cluster.finalize(self.cluster)
     self.assertEquals( ret, 0, 'failed to test_basic_op.initialize' )
示例#2
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 def setUp(self):
     util.set_process_logfile_prefix( 'TestBasicOp_%s' % self._testMethodName )
     ret = default_cluster.initialize_starting_up_smr_before_redis(self.cluster)
     if ret is not 0:
         util.log('failed to test_basic_op.initialize')
         default_cluster.finalize(self.cluster)
     self.assertEquals( ret, 0, 'failed to test_basic_op.initialize' )
    def tearDownClass( cls ):
        for i in range( len( cls.load_gen_thrd_list ) ):
            cls.load_gen_thrd_list[i].quit()
        for i in range( len( cls.load_gen_thrd_list ) ):
            cls.load_gen_thrd_list[i].join()

        default_cluster.finalize( cls.cluster )
示例#4
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 def setUpClass(cls):
     ret = default_cluster.initialize_starting_up_smr_before_redis(
         cls.cluster)
     if ret is not 0:
         default_cluster.finalize(cls.cluster)
     assert (ret == 0)
     return 0
示例#5
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    def tearDownClass(cls):
        for i in range(len(cls.load_gen_thrd_list)):
            cls.load_gen_thrd_list[i].quit()
        for i in range(len(cls.load_gen_thrd_list)):
            cls.load_gen_thrd_list[i].join()

        default_cluster.finalize(cls.cluster)
示例#6
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 def setUp(self):
     util.set_process_logfile_prefix('TestFreeClient_%s' %
                                     self._testMethodName)
     ret = default_cluster.initialize_starting_up_smr_before_redis(
         self.cluster)
     if ret is not 0:
         default_cluster.finalize(self.cluster)
     return 0
示例#7
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 def setUp(self):
     util.set_process_logfile_prefix('TestLocalProxy_%s' %
                                     self._testMethodName)
     ret = default_cluster.initialize_starting_up_smr_before_redis(
         self.cluster)
     if ret is not 0:
         util.log('failed to test_local_proxy.initialize')
         default_cluster.finalize(self.cluster)
示例#8
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 def setUp(self):
     util.set_process_logfile_prefix('TestHeartbeatChecker_%s' %
                                     self._testMethodName)
     ret = default_cluster.initialize_starting_up_smr_before_redis(
         self.cluster)
     if ret is not 0:
         default_cluster.finalize(self.cluster)
     self.assertEquals(ret, 0, 'failed to TestHeartbeatChecker.initialize')
示例#9
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def defaultTearDown(cls):
    """
    cls is a TestXXX and cls must have conf_checker and cluster as member variables.
    """

    try:
        assert cls.conf_checker.final_check()
    finally:
        default_cluster.finalize(cls.cluster)
示例#10
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def defaultTearDown(cls):
    """
    cls is a TestXXX and cls must have conf_checker and cluster as member variables.
    """

    try:
        assert cls.conf_checker.final_check()
    finally:
        default_cluster.finalize(cls.cluster)
示例#11
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 def setUpClass(cls):
     ret = default_cluster.initialize_starting_up_smr_before_redis(
         cls.cluster)
     if ret is not 0:
         util.log(
             'failed to initialize_starting_up_smr_before_redis in TestUpgrade'
         )
         default_cluster.finalize(cls.cluster)
     return 0
    def setUpClass( cls ):
        ret = default_cluster.initialize_starting_up_smr_before_redis( cls.cluster )
        if ret is not 0:
            default_cluster.finalize( cls.cluster )
            return -1

        slave = util.get_server_by_role( cls.cluster['servers'], 'slave' )

        for i in range( cls.max_load_generator ):
            cls.load_gen_thrd_list[i] = load_generator.LoadGenerator( i, slave['ip'], slave['redis_port'] )
            cls.load_gen_thrd_list[i].start()
示例#13
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    def setup_test_cluster( self, cluster ):
        self.cluster = cluster
        self.leader_cm = cluster['servers'][0]
        self.mgmt_ip = self.leader_cm['ip']
        self.mgmt_port = self.leader_cm['cm_port']

        ret = default_cluster.initialize_starting_up_smr_before_redis( self.cluster )
        if ret is not 0:
            default_cluster.finalize( self.cluster )
        self.assertEquals( ret, 0, 'failed to TestPGSHanging.initialize' )
        return 0
示例#14
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    def setup_test_cluster(self, cluster):
        self.cluster = cluster
        self.leader_cm = cluster['servers'][0]
        self.mgmt_ip = self.leader_cm['ip']
        self.mgmt_port = self.leader_cm['cm_port']

        ret = default_cluster.initialize_starting_up_smr_before_redis(
            self.cluster)
        if ret is not 0:
            default_cluster.finalize(self.cluster)
        self.assertEquals(ret, 0, 'failed to TestPGSHanging.initialize')
        return 0
示例#15
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    def setUpClass( cls ):
        global mgmt_ip
        global mgmt_port

        mgmt_ip = cls.leader_cm['ip']
        mgmt_port = cls.leader_cm['cm_port']

        ret = default_cluster.initialize_starting_up_smr_before_redis( cls.cluster )
        if ret is not 0:
            util.log( 'failed to initialize_starting_up_smr_before_redis in TestUpgrade' )
            default_cluster.finalize( cls.cluster )
        return 0
示例#16
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    def setUp(self):
        # Initialize cluster
        util.set_process_logfile_prefix( 'TestARCCI%s' % self._testMethodName )
        ret = default_cluster.initialize_starting_up_smr_before_redis( self.cluster )
        if ret is not 0:
            default_cluster.finalize( self.cluster )
        self.assertEquals( ret, 0, 'failed to test_arcci.initialize' )

        self.GW_LIST = []
        for s in self.cluster['servers']:
            self.GW_LIST.append({"ip":s['ip'],"port":s['gateway_port']})

        return 0
示例#17
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    def tearDown(self):
        # Shutdown load generators
        i = 0
        max = len(self.load_gen_list)
        while i < max:
            self.load_gen_list[i].quit()
            self.load_gen_list[i].join()
            self.load_gen_list.pop(i, None)
            i += 1

        # Finalize cluster
        default_cluster.finalize( self.cluster )
        return 0
示例#18
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    def setUpClass(cls):
        ret = default_cluster.initialize_starting_up_smr_before_redis(
            cls.cluster)
        if ret is not 0:
            default_cluster.finalize(cls.cluster)
            return -1

        slave = util.get_server_by_role(cls.cluster['servers'], 'slave')

        for i in range(cls.max_load_generator):
            cls.load_gen_thrd_list[i] = load_generator.LoadGenerator(
                i, slave['ip'], slave['redis_port'])
            cls.load_gen_thrd_list[i].start()
示例#19
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    def setUpClass(cls):
        global mgmt_ip
        global mgmt_port

        mgmt_ip = cls.leader_cm['ip']
        mgmt_port = cls.leader_cm['cm_port']

        ret = default_cluster.initialize_starting_up_smr_before_redis(
            cls.cluster)
        if ret is not 0:
            util.log(
                'failed to initialize_starting_up_smr_before_redis in TestUpgrade'
            )
            default_cluster.finalize(cls.cluster)
        return 0
示例#20
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    def tearDown(self):
        if default_cluster.finalize(self.cluster) is not 0:
            util.log('failed to TestClusterUtil.finalize')

        # Release proxy server
        self.release_proxy_server(self.getdump_proxy_proc, "getdump.fifo")
        self.release_proxy_server(self.playdump_proxy_proc, "playdump.fifo")
        return 0
示例#21
0
    def tearDown(self):
        # shutdown load generators
        for load_gen_id, load_gen in self.load_gen_list.items():
            load_gen.quit()
            load_gen.join()
            self.load_gen_list.pop(load_gen_id, None)

        if default_cluster.finalize( self.cluster ) is not 0:
            util.log('failed to TestMaintenance.finalize')

        return 0
示例#22
0
    def tearDown(self):
        # shutdown load generators
        for load_gen_id, load_gen in self.load_gen_list.items():
            load_gen.quit()
            load_gen.join()
            self.load_gen_list.pop(load_gen_id, None)

        if default_cluster.finalize(self.cluster) is not 0:
            util.log('failed to TestMaintenance.finalize')

        return 0
示例#23
0
 def tearDownClass(cls):
     default_cluster.finalize(cls.cluster)
     return 0
示例#24
0
 def tearDown(self):
     ret = default_cluster.finalize(self.cluster)
     self.assertEquals(ret, 0, 'failed to TestPGSHanging.finalize')
     return 0
示例#25
0
    def test_7_dirty_network_fi(self):
        util.print_frame()
        clnts = []

        try:
            util.iptables_print_list()

            # Add forwarding role
            self.assertTrue(util.iptables_redirect('A', '127.0.0.100', '127.0.0.1'), 'add a forwarding role to iptables fail.')

            cluster_name = 'network_isolation_cluster_1'
            cluster = filter(lambda x: x['cluster_name'] == cluster_name, config.clusters)[0]
            util.log(util.json_to_str(cluster))

            self.leader_cm = cluster['servers'][0]

            # MGMT
            mgmt_ip = cluster['servers'][0]['real_ip']
            mgmt_port = cluster['servers'][0]['cm_port']

            # Create cluster
            conf_checker = default_cluster.initialize_starting_up_smr_before_redis( cluster, 
                    conf={'cm_context':'applicationContext-fi.xml'})
            self.assertIsNotNone(conf_checker, 'failed to initialize cluster')

            # Print initial state of cluster
            util.log('\n\n\n ### INITIAL STATE OF CLUSTER ### ')
            initial_state = []
            self.assertTrue(util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, initial_state, check_quorum=True), 'failed to check cluster state')

            # Start crc16 client
            for s in cluster['servers']:
                c = load_generator_crc16.Crc16Client(s['id'], s['ip'], s['redis_port'], 600, verbose=False)
                c.start()
                clnts.append(c)

            # Network isolation test
            cmfi = fi_confmaster.ConfmasterWfFi(['ra', 'me', 'yj', 'bj', 'mg'], 
                                                ['lconn', 'slave', 'master', 'setquorum'], [True, False], 1)

            for fi in cmfi:
                # Block network
                util.log('\n\n\n ### BLOCK NETWORK, %s ### ' % str(fi))
                ret = block_network(cluster, mgmt_ip, mgmt_port)
                self.assertTrue(ret, '[%s] failed to block network.' % str(fi))

                for i in xrange(4):
                    util.log('waiting... %d' % (i + 1))
                    time.sleep(1)

                # Check cluster state
                ok = False
                for i in xrange(10):
                    isolated_states = []
                    util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, isolated_states, check_quorum=True)

                    state_transition_done = True
                    for s in isolated_states:
                        if s['ip'] != '127.0.0.100':
                            continue

                        if s['active_role'] != '?' or s['mgmt_role'] != 'N':
                            state_transition_done = False

                    if state_transition_done:
                        ok = True
                        break
                    time.sleep(1)
                self.assertTrue(ok, 'Fail, state transition')

                # Fault injection
                try:
                    self.assertTrue(fi_confmaster.fi_add(fi, 1, mgmt_ip, mgmt_port), 
                            "Confmaster command fail. fi: %s" % str(fi))
                except ValueError as e:
                    self.fail("Confmaster command error. cmd: \"%s\", reply: \"%s\"" % (cmd, reply))

                # Unblock network
                util.log('\n\n\n ### UNBLOCK NETWORK, %s ### ' % str(fi))
                ret = unblock_network(cluster, mgmt_ip, mgmt_port, None)
                self.assertTrue(ret, '[%s] failed to unblock network.' % str(fi))

                for i in xrange(4):
                    util.log('waiting... %d' % (i + 1))
                    time.sleep(1)

                # Check cluster state
                ok = False
                for i in xrange(10):
                    isolated_states = []
                    ok = util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, isolated_states, check_quorum=True)
                    if ok:
                        break
                    time.sleep(1)
                self.assertTrue(ok, '[%s] Fail. unstable cluster.' % str(fi))

                check_cluster = False

                # 'bj', 'slave'
                if fi[0] == 'bj' and fi[1] == 'slave':
                    m, s1, s2 = util.get_mss(cluster)
                    ret = util.role_lconn(s1)
                    self.assertEqual("+OK\r\n", ret, '[%s] role lconn fail.' % str(fi))
                    check_cluster = True
                # 'me', 'lconn'
                elif fi[0] == 'me':
                    m, s1, s2 = util.get_mss(cluster)
                    ret = util.role_lconn(m)
                    self.assertEqual("+OK\r\n", ret, '[%s] role lconn fail.' % str(fi))
                    check_cluster = True
                # 'setquorum'
                elif fi[1] == 'setquorum':
                    m, s1, s2 = util.get_mss(cluster)
                    ret = util.cmd_to_smr_addr(s1['ip'], s1['smr_mgmt_port'], 'fi delay sleep 1 8000\r\n', timeout=20)
                    self.assertEqual("+OK\r\n", ret, '[%s] "fi delay sleep 1 8000" fail. ret: "%s"' % (str(fi), ret))
                    check_cluster = True

                if check_cluster:
                    # Check cluster state
                    ok = False
                    for i in xrange(20):
                        isolated_states = []
                        ok = util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, isolated_states, check_quorum=True)
                        if ok:
                            break
                        time.sleep(1)
                    self.assertTrue(ok, '[%s] Fail. unstable cluster.' % str(fi))

                # Check fault injection
                ok = False
                for i in xrange(10):
                    count = fi_confmaster.fi_count(fi, mgmt_ip, mgmt_port)
                    if count == 0:
                        ok = True
                        break
                    time.sleep(0.5)
                self.assertTrue(ok, "[%s] fail. failt injection had not been triggered." % str(fi))

                for c in clnts:
                    self.assertTrue(c.is_consistency(), '[%s] data consistency error!' % str(fi))

            for c in clnts:
                self.assertTrue(c.is_consistency(), '[%s] data consistency error!' % str(fi))

            # Go back to initial configuration
            cmfi.init()
            for fi in cmfi:
                try:
                    self.assertTrue(fi_confmaster.fi_add(fi, 0, mgmt_ip, mgmt_port),
                            "Confmaster command fail. fi: %s" % str(fi))
                except ValueError as e:
                    self.fail("Confmaster command error. cmd: \"%s\", reply: \"%s\"" % (cmd, reply))

            # Wait until workflows done
            ret = util.await(60, True)(
                    lambda cinfo: cinfo['wf'] == 0,
                    lambda : util.cluster_info(mgmt_ip, mgmt_port, cluster['cluster_name']))
            self.assertTrue(ret, 'There are still some workflows.')

            self.assertTrue(conf_checker.final_check())

            # Shutdown cluster
            default_cluster.finalize(cluster)

        finally:
            for c in clnts:
                c.quit()
            for c in clnts:
                c.join()

            # Delete forwarding role
            self.assertTrue(util.iptables_redirect('D', '127.0.0.100', '127.0.0.1'), 'add a forwarding role to iptables fail.')
示例#26
0
    def test_1_mgmt_is_isolated(self):
        util.print_frame()

        util.iptables_print_list()

        cluster = filter(lambda x: x['cluster_name'] == 'network_isolation_cluster_1', config.clusters)[0]
        util.log(util.json_to_str(cluster))

        # MGMT
        mgmt_ip = cluster['servers'][0]['real_ip']
        mgmt_port = cluster['servers'][0]['cm_port']

        # Create cluster
        conf_checker = default_cluster.initialize_starting_up_smr_before_redis( cluster )
        self.assertIsNotNone(conf_checker, 'failed to initialize cluster')

        # Print initial state of cluster
        util.log('\n\n\n ### INITIAL STATE OF CLUSTER ### ')
        initial_state = []
        self.assertTrue(util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, initial_state, check_quorum=True), 'failed to check cluster state')

        # Set SMR option (slave_idle_timeout)
        util.log('\n\n\n ### Set SMR option ###')
        for s in cluster['servers']:
            t = telnet.Telnet('SMR%d' % s['id'])
            self.assertEqual(t.connect(s['ip'], s['smr_mgmt_port']), 0,
                    'Failed to connect to smr. ADDR=%s:%d' % (s['ip'], s['smr_mgmt_port']))
            cmd = 'confset slave_idle_timeout_msec 18000'
            util.log('[%s:%d] >> %s' % (s['ip'], s['smr_mgmt_port'], cmd))
            t.write('confset slave_idle_timeout_msec 18000\r\n')
            reply = t.read_until('\r\n').strip()
            util.log('[%s:%d] << %s' % (s['ip'], s['smr_mgmt_port'], reply))
            self.assertEqual(reply, '+OK', 'Failed to set slave_idle_timeout, REPLY=%s' % reply)

        # Network isolation test
        for cnt in range(5):
            # Block network
            util.log('\n\n\n ### BLOCK NETWORK, %d ### ' % cnt)
            for s in cluster['servers']:
                """Loopback Address Range (Reference : RFC3330)

                127.0.0.0/8 - This block is assigned for use as the Internet host
                  loopback address.  A datagram sent by a higher level protocol to an
                  address anywhere within this block should loop back inside the host.
                  This is ordinarily implemented using only 127.0.0.1/32 for loopback,
                  but no addresses within this block should ever appear on any network
                  anywhere [RFC1700, page 5].
                """
                self.assertTrue(util.iptables_drop('A', '127.0.0.100', s['smr_mgmt_port']), 'add a bloking role to iptables fail.')

            for i in range(4):
                util.log('waiting... %d' % (i + 1))
                time.sleep(1)

            # Check cluster state
            ok = False
            for i in range(7):
                isolated_states = []
                util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, isolated_states, check_quorum=True)
                time.sleep(1)

                state_transition_done = True
                for s in isolated_states:
                    if s['ip'] != '127.0.0.100':
                        continue

                    if s['active_role'] != '?' or s['mgmt_role'] != 'N':
                        state_transition_done = False

                if state_transition_done :
                    ok = True
                    break
                time.sleep(1)
            self.assertTrue(ok, 'Fail, state transition')

            # Unblock network
            util.log('\n\n\n ### UNBLOCK NETWORK, %d ### ' % cnt)
            for s in cluster['servers']:
                self.assertTrue(util.iptables_drop('D', '127.0.0.100', s['smr_mgmt_port']), 'delete a bloking role to iptables fail.')

            # Check cluster state
            ok = False
            for i in range(7):
                final_state = []
                util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, final_state, check_quorum=True)

                all_green = True
                for s in final_state:
                    if is_pgs_normal(s) == False:
                        all_green = False

                if all_green:
                    ok = True
                    break
                time.sleep(1)
            self.assertTrue(ok, 'Fail, state consistency')

        # Check state
        self.assertNotEqual(initial_state, None, 'initial_state is None')
        self.assertNotEqual(final_state, None, 'final_state is None')

        self.assertTrue(conf_checker.final_check())

        # Shutdown cluster
        default_cluster.finalize(cluster)
示例#27
0
    def test_5_mgmt_is_isolated_with_lconn(self):
        util.print_frame()

        util.iptables_print_list()

        cluster = filter(lambda x: x['cluster_name'] == 'network_isolation_cluster_1', config.clusters)[0]
        util.log(util.json_to_str(cluster))

        self.leader_cm = cluster['servers'][0]

        # MGMT
        mgmt_ip = cluster['servers'][0]['real_ip']
        mgmt_port = cluster['servers'][0]['cm_port']

        # Create cluster
        conf_checker = default_cluster.initialize_starting_up_smr_before_redis( cluster )
        self.assertIsNotNone(conf_checker, 'failed to initialize cluster')

        # Print initial state of cluster
        util.log('\n\n\n ### INITIAL STATE OF CLUSTER ### ')
        initial_state = []
        self.assertTrue(util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, initial_state, check_quorum=True), 'failed to check cluster state')

        # Set SMR option (slave_idle_timeout)
        util.log('\n\n\n ### Set SMR option ###')
        for s in cluster['servers']:
            t = telnet.Telnet('SMR%d' % s['id'])
            self.assertEqual(t.connect(s['ip'], s['smr_mgmt_port']), 0,
                    'Failed to connect to smr. ADDR=%s:%d' % (s['ip'], s['smr_mgmt_port']))
            cmd = 'confset slave_idle_timeout_msec 18000'
            util.log('[%s:%d] >> %s' % (s['ip'], s['smr_mgmt_port'], cmd))
            t.write('confset slave_idle_timeout_msec 18000\r\n')
            reply = t.read_until('\r\n').strip()
            util.log('[%s:%d] << %s' % (s['ip'], s['smr_mgmt_port'], reply))
            self.assertEqual(reply, '+OK', 'Failed to set slave_idle_timeout, REPLY=%s' % reply)

        # Network isolation test
        for loop_cnt in range(3):
            # Get master
            master = util.get_server_by_role_and_pg( cluster['servers'], 'master', 0 )

            first_slave = None
            for s in cluster['servers']:
                if s == master:
                    continue

                # Skip non-virtual host
                if s.has_key('real_ip') == False:
                    continue

                if first_slave == None:
                    first_slave = s

                # 'role lconn'
                util.log( 'role lconn pgs%d while hanging.' % s['id'] )

                ret = util.role_lconn_addr( s['real_ip'], s['smr_mgmt_port']  )
                self.assertEqual( ret, '+OK\r\n', 'role lconn failed. reply="%s"' % (ret[:-2]) )
                util.log( 'succeeded : cmd="role lconn", reply="%s"' % (ret[:-2]) )
                time.sleep(0.5)

            # Block network
            util.log('\n\n\n ### BLOCK NETWORK, %d ### ' % loop_cnt)
            self.assertTrue(util.iptables_drop('A', '127.0.0.100', first_slave['smr_mgmt_port']), 'add a bloking role to iptables fail.')

            for i in range(6):
                util.log('waiting... %d' % (i + 1))
                time.sleep(1)

            # Check cluster state
            ok = False
            for i in range(10):
                isolated_states = []
                util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, isolated_states, check_quorum=True)
                time.sleep(1)

                state_transition_done = True
                for s in isolated_states:
                    if s['pgs_id'] != first_slave['id']:
                        continue

                    if s['active_role'] != '?' or s['mgmt_role'] != 'N':
                        state_transition_done = False

                if state_transition_done :
                    ok = True
                    break
                time.sleep(1)
            self.assertTrue(ok, 'Fail, state transition')

            # Unblock network
            self.assertTrue(util.iptables_drop('D', '127.0.0.100', first_slave['smr_mgmt_port']), 'delete a bloking role to iptables fail.')

            # Check cluster state
            ok = False
            for i in range(7):
                final_state = []
                util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, final_state, check_quorum=True)

                state_consistency = True
                for s in final_state:
                    if s['pgs_id'] == 1:
                        continue

                    if is_pgs_normal(s) == False:
                        state_consistency = False

                if state_consistency:
                    ok = True
                    break
                time.sleep(1)
            self.assertTrue(ok, 'Fail, state consistency')

            ok = False
            for i in xrange(5):
                ok = util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, check_quorum=True)
                if ok:
                    break
                else:
                    time.sleep(1)
            self.assertTrue(ok, 'failed to check cluster state')

        # Check state
        self.assertNotEqual(initial_state, None, 'initial_state is None')
        self.assertNotEqual(final_state, None, 'final_state is None')

        initial_state = sorted(initial_state, key=lambda x: int(x['pgs_id']))
        final_state = sorted(final_state, key=lambda x: int(x['pgs_id']))
        for i in range(len(final_state)):
            msg = 'ts (%d)%d -> (%d)%d' % (initial_state[i]['pgs_id'], initial_state[i]['active_ts'], final_state[i]['pgs_id'], final_state[i]['active_ts'])
            util.log(msg)

        self.assertTrue(util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, check_quorum=True), 'failed to check cluster state')

        self.assertTrue(conf_checker.final_check())

        # Shutdown cluster
        default_cluster.finalize(cluster)
示例#28
0
    def test_6_repeat_isolation_and_no_opinion_linepay(self):
        util.print_frame()

        util.iptables_print_list()

        # Add forwarding role
        self.assertTrue(util.iptables_redirect('A', '127.0.0.100', '127.0.0.1'), 'add a forwarding role to iptables fail.')
        self.assertTrue(util.iptables_redirect('A', '127.0.0.101', '127.0.0.1'), 'add a forwarding role to iptables fail.')
        self.assertTrue(util.iptables_redirect('A', '127.0.0.102', '127.0.0.1'), 'add a forwarding role to iptables fail.')

        cluster_name = 'no_opinion'
        cluster = filter(lambda x: x['cluster_name'] == cluster_name, config.clusters)[0]
        util.log(util.json_to_str(cluster))

        self.leader_cm = cluster['servers'][0]

        # MGMT
        mgmt_ip = cluster['servers'][0]['real_ip']
        mgmt_port = cluster['servers'][0]['cm_port']

        # Create cluster
        conf_checker = default_cluster.initialize_starting_up_smr_before_redis( cluster )
        self.assertIsNotNone(conf_checker, 'failed to initialize cluster')

        # Print initial state of cluster
        util.log('\n\n\n ### INITIAL STATE OF CLUSTER ### ')
        initial_state = []
        self.assertTrue(util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, initial_state, check_quorum=True), 'failed to check cluster state')

        # Network isolation test
        loop_cnt = 0
        while (loop_cnt < 20):
            loop_cnt += 1
            # Block network
            util.log('\n\n\n ### BLOCK NETWORK, %d ### ' % loop_cnt)
            self.assertTrue(util.iptables_drop('A', '127.0.0.102'), 'add a bloking role to iptables fail.')

            for i in range(1):
                util.log('waiting... %d' % (i + 1))
                time.sleep(0.1)

            self.assertTrue(util.iptables_drop('A', '127.0.0.100'), 'add a bloking role to iptables fail.')

            for i in range(3):
                util.log('waiting... %d' % (i + 1))
                time.sleep(1.2)

            self.assertTrue(util.iptables_drop('A', '127.0.0.101'), 'add a bloking role to iptables fail.')

            for i in range(1):
                util.log('waiting... %d' % (i + 1))
                time.sleep(1)

            # Unblock network
            util.log('\n\n\n ### UNBLOCK NETWORK, %d ### ' % loop_cnt)
            self.assertTrue(util.iptables_drop('D', '127.0.0.102'), 'delete a bloking role to iptables fail.')
            for i in range(0):
                util.log('waiting... %d' % (i + 1))
                time.sleep(1)
            self.assertTrue(util.iptables_drop('D', '127.0.0.100'), 'delete a bloking role to iptables fail.')
            for i in range(0):
                util.log('waiting... %d' % (i + 1))
                time.sleep(1)
            self.assertTrue(util.iptables_drop('D', '127.0.0.101'), 'delete a bloking role to iptables fail.')
            for i in range(3):
                util.log('waiting... %d' % (i + 1))
                time.sleep(1)

            # Print state of cluster
            util.log('\n ### STATE OF CLUSTER ### ')
            cluster_state = False
            for i in range(10):
                cluster_state = util.check_cluster(cluster_name, mgmt_ip, mgmt_port, initial_state, check_quorum=True)
                if cluster_state == True:
                    break
                else:
                    time.sleep(1)
            self.assertTrue(cluster_state, 'failed to check cluster state')

            all_in_f = True
            for s in cluster['servers']:
                if checkLastState(mgmt_ip, s['cm_port'], cluster_name, 0, 'F') == False:
                    all_in_f = False
                    break

            self.assertFalse(all_in_f, 'PGS0`s last state remains in F')

        # Delete forwarding role
        self.assertTrue(util.iptables_redirect('D', '127.0.0.100', '127.0.0.1'), 'delete a forwarding role to iptables fail.')
        self.assertTrue(util.iptables_redirect('D', '127.0.0.101', '127.0.0.1'), 'delete a forwarding role to iptables fail.')
        self.assertTrue(util.iptables_redirect('D', '127.0.0.102', '127.0.0.1'), 'delete a forwarding role to iptables fail.')

        self.assertTrue(conf_checker.final_check())

        # Shutdown cluster
        default_cluster.finalize(cluster)
示例#29
0
 def tearDown( self ):
     ret = default_cluster.finalize( self.cluster )
     self.assertEquals( ret, 0, 'failed to TestQuorumPolicy.finalize' )
     return 0
示例#30
0
 def setUpClass( cls ):
     ret = default_cluster.initialize_starting_up_smr_before_redis( cls.cluster )
     if ret is not 0:
         util.log( 'failed to initialize_starting_up_smr_before_redis in TestUpgrade' )
         default_cluster.finalize( cls.cluster )
     return 0
示例#31
0
 def tearDown( self ):
     ret = default_cluster.finalize( self.cluster )
     self.assertEquals( ret, 0, 'failed to TestPGSHanging.finalize' )
     return 0
示例#32
0
 def setUpClass( cls ):
     ret = default_cluster.initialize_starting_up_smr_before_redis( cls.cluster )
     if ret is not 0:
         default_cluster.finalize( cls.cluster )
     assert (ret == 0)
     return 0
示例#33
0
 def setUp( self ):
     util.set_process_logfile_prefix( 'TestQuorumPolicy_%s' % self._testMethodName )
     ret = default_cluster.initialize_starting_up_smr_before_redis( self.cluster )
     if ret is not 0:
         default_cluster.finalize( self.cluster )
     self.assertEquals( ret, 0, 'failed to TestQuorumPolicy.initialize' )
示例#34
0
 def tearDown(self):
     if default_cluster.finalize( self.cluster ) is not 0:
         util.log('failed to TestFreeClient.finalize')
     return 0
示例#35
0
 def tearDown( self ):
     ret = default_cluster.finalize( self.cluster )
     self.assertEquals( ret, 0, 'failed to TestHeartbeatChecker.finalize' )
     return 0
示例#36
0
 def tearDown( self ):
     ret = default_cluster.finalize( self.cluster )
     self.assertEquals( ret, 0, 'failed to TestQuorumPolicy.finalize' )
     return 0
示例#37
0
 def setUp(self):
     util.set_process_logfile_prefix('TestLocalProxy_%s' % self._testMethodName)
     ret = default_cluster.initialize_starting_up_smr_before_redis(self.cluster)
     if ret is not 0:
         util.log('failed to test_local_proxy.initialize')
         default_cluster.finalize(self.cluster)
示例#38
0
 def tearDownClass( cls ):
     ret = default_cluster.finalize( cls.cluster )
     assert (ret == 0)
     return 0
示例#39
0
 def tearDown(self):
     if default_cluster.finalize(self.cluster) is not 0:
         util.log('failed to test_basic_op.finalize')
示例#40
0
    def test_2_some_pgs_is_isolated(self):
        util.print_frame()

        util.iptables_print_list()

        # Add forwarding role (127.0.0.100 -> 127.0.0.1)
        self.assertTrue(util.iptables_redirect('A', '127.0.0.100', '127.0.0.1'), 'add a forwarding role to iptables fail.')

        cluster = filter(lambda x: x['cluster_name'] == 'network_isolation_cluster_2', config.clusters)[0]
        util.log(util.json_to_str(cluster))

        # MGMT
        mgmt_ip = cluster['servers'][0]['real_ip']
        mgmt_port = cluster['servers'][0]['cm_port']

        # Create cluster
        conf_checker = default_cluster.initialize_starting_up_smr_before_redis( cluster )
        self.assertIsNotNone(conf_checker, 'failed to initialize cluster')

        # Place master on virtual ip address in order to cause master election.
        pg_id = 0
        m = util.get_server_by_role_and_pg(cluster['servers'], 'master', pg_id)
        s = util.get_server_by_role_and_pg(cluster['servers'], 'slave', pg_id)
        if m.has_key('ip') == True and m.has_key('real_ip') == False:
            ret = util.role_change(cluster['servers'][0], cluster['cluster_name'], s['id'])
            self.assertNotEquals(ret, -1, 'change %d to a master fail' % s['id'])

        # Print initial state of cluster
        util.log('\n\n\n ### INITIAL STATE OF CLUSTER ### ')
        initial_state = []
        self.assertTrue(util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, initial_state, check_quorum=True), 'failed to check cluster state')

        # Network isolation test
        for cnt in range(3):
            # Block network
            util.log('\n\n\n ### BLOCK NETWORK, %d ### ' % cnt)
            self.assertTrue(util.iptables_drop('A', '127.0.0.100'), 'add a bloking role to iptables fail.')

            for i in range(4):
                util.log('waiting... %d' % (i + 1))
                time.sleep(1)

            # Check cluster state
            ok = False
            for i in range(7):
                isolated_states = []
                util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, isolated_states, check_quorum=True)
                time.sleep(1)

                state_transition_done = True
                for s in isolated_states:
                    if s['pgs_id'] == 1:
                        continue

                    if s['active_role'] != '?' or s['mgmt_role'] != 'N':
                        state_transition_done = False

                if state_transition_done :
                    ok = True
                    break
                time.sleep(1)
            self.assertTrue(ok, 'Fail, state transition')

            # Unblock network
            util.log('\n\n\n ### UNBLOCK NETWORK, %d ### ' % cnt)
            self.assertTrue(util.iptables_drop('D', '127.0.0.100'), 'delete a bloking role to iptables fail.')

            # Check cluster state
            ok = False
            for i in range(7):
                final_state = []
                util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, final_state, check_quorum=True)

                state_consistency = True
                for s in final_state:
                    if s['pgs_id'] == 1:
                        continue

                    if is_pgs_normal(s) == False:
                        state_consistency = False

                if state_consistency:
                    ok = True
                    break
                time.sleep(1)
            self.assertTrue(ok, 'Fail, state consistency')

        # Check state
        self.assertNotEqual(initial_state, None, 'initial_state is None')
        self.assertNotEqual(final_state, None, 'final_state is None')

        initial_state = sorted(initial_state, key=lambda x: int(x['pgs_id']))
        final_state = sorted(final_state, key=lambda x: int(x['pgs_id']))
        for i in range(len(final_state)):
            msg = 'ts (%d)%d -> (%d)%d' % (initial_state[i]['pgs_id'], initial_state[i]['active_ts'], final_state[i]['pgs_id'], final_state[i]['active_ts'])
            util.log(msg)
            self.assertNotEqual(initial_state[i]['active_ts'], final_state[i]['active_ts'], msg)

        # Delete forwarding role (127.0.0.100 -> 127.0.0.1)
        self.assertTrue(util.iptables_redirect('D', '127.0.0.100', '127.0.0.1'), 'delete a forwarding role to iptables fail')

        self.assertTrue(conf_checker.final_check())

        # Shutdown cluster
        default_cluster.finalize(cluster)
 def tearDown(self):
     ret = default_cluster.finalize(self.cluster)
     self.assertEquals(ret, 0,
                       'failed to test_check_point_and_log.finalize')
     return 0
示例#42
0
 def tearDownClass( cls ):
     default_cluster.finalize( cls.cluster )
     return 0
示例#43
0
    def test_3_some_pgs_is_isolated_2copy(self):
        util.print_frame()

        out = util.sudo('iptables -L')
        util.log('====================================================================')
        util.log('out : %s' % out)
        util.log('out.return_code : %d' % out.return_code)
        util.log('out.stderr : %s' % out.stderr)
        util.log('out.succeeded : %s' % out.succeeded)

        # Add forwarding role (127.0.0.100 -> 127.0.0.1)
        self.assertTrue(util.iptables_redirect('A', '127.0.0.100', '127.0.0.1'), 'add a forwarding role to iptables fail.')

        cluster = filter(lambda x: x['cluster_name'] == 'network_isolation_cluster_1_2copy', config.clusters)[0]
        util.log(util.json_to_str(cluster))

        # MGMT
        mgmt_ip = cluster['servers'][0]['ip']
        mgmt_port = cluster['servers'][0]['cm_port']

        # Create cluster
        conf_checker = default_cluster.initialize_starting_up_smr_before_redis( cluster )
        self.assertIsNotNone(conf_checker, 'failed to initialize cluster')

        # Place master on real ip address
        for pg_id in [0, 1]:
            m = util.get_server_by_role_and_pg(cluster['servers'], 'master', pg_id)
            s = util.get_server_by_role_and_pg(cluster['servers'], 'slave', pg_id)
            if m.has_key('ip') and m.has_key('real_ip'):
                if m['ip'] != m['real_ip']:
                    ret = util.role_change(cluster['servers'][0], cluster['cluster_name'], s['id'])
                    self.assertNotEquals(ret, -1, 'change %d to a master fail' % s['id'])

        # Print initial state of cluster
        util.log('\n\n\n ### INITIAL STATE OF CLUSTER ### ')
        initial_state = []
        self.assertTrue(util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, initial_state, check_quorum=True), 'failed to check cluster state')

        # Network isolation test
        for cnt in range(3):
            # Block network
            util.log('\n\n\n ### BLOCK NETWORK, %d ### ' % cnt)
            self.assertTrue(util.iptables_drop('A', '127.0.0.100'), 'add a bloking role to iptables fail.')

            for i in range(4):
                util.log('waiting... %d' % (i + 1))
                time.sleep(1)

            # Check cluster state
            ok = False
            for i in range(7):
                isolated_states = []
                util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, isolated_states, check_quorum=True)
                time.sleep(1)

                state_transition_done = True
                for s in isolated_states:
                    if s['pgs_id'] == 0 or s['pgs_id'] == 1:
                        continue

                    if s['active_role'] != 'M' or s['mgmt_role'] != 'M':
                        state_transition_done = False

                    if s['quorum'] != 0:
                        state_transition_done = False

                if state_transition_done:
                    ok = True
                    break
                time.sleep(1)
            self.assertTrue(ok, 'Fail, state transition')

            # Unblock network
            util.log('\n\n\n ### UNBLOCK NETWORK, %d ### ' % cnt)
            self.assertTrue(util.iptables_drop('D', '127.0.0.100'), 'delete a bloking role to iptables fail.')

            # Check cluster state
            ok = False
            for i in range(7):
                final_state = []
                if util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, final_state, check_quorum=True) == False:
                    time.sleep(1)
                    continue

                state_consistency = True
                for s in final_state:
                    if s['pgs_id'] == 1:
                        continue

                    if is_pgs_normal(s) == False:
                        state_consistency = False

                if state_consistency:
                    ok = True
                    break
                time.sleep(1)
            self.assertTrue(ok, 'Fail, state consistency')

        # Check state
        self.assertNotEqual(initial_state, None, 'initial_state is None')
        self.assertNotEqual(final_state, None, 'final_state is None')

        # Delete forwarding role (127.0.0.100 -> 127.0.0.1)
        self.assertTrue(util.iptables_redirect('D', '127.0.0.100', '127.0.0.1'), 'delete a forwarding role to iptables fail.')

        self.assertTrue(conf_checker.final_check())

        # Shutdown cluster
        default_cluster.finalize(cluster)
示例#44
0
 def tearDown(self):
     if default_cluster.finalize(self.cluster) is not 0:
         util.log('failed to test_local_proxy.finalize')
示例#45
0
    def test_4_mgmt_is_isolated_with_red_failover(self):
        util.print_frame()

        util.iptables_print_list()

        cluster = filter(lambda x: x['cluster_name'] == 'network_isolation_cluster_1', config.clusters)[0]
        util.log(util.json_to_str(cluster))

        self.leader_cm = cluster['servers'][0]

        # MGMT
        mgmt_ip = cluster['servers'][0]['real_ip']
        mgmt_port = cluster['servers'][0]['cm_port']

        # Create cluster
        conf_checker = default_cluster.initialize_starting_up_smr_before_redis( cluster )
        self.assertIsNotNone(conf_checker, 'failed to initialize cluster')

        util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port)

        # Master must be the first pgs, cluster['servers'][0].
        to_be_master = cluster['servers'][0]
        m = util.get_server_by_role_and_pg(cluster['servers'], 'master', to_be_master['pg_id'])
        master_id = -1
        if m['id'] != to_be_master['id']:
            try_cnt = 0
            while master_id != to_be_master['id'] and try_cnt < 20:
                master_id = util.role_change(cluster['servers'][0], cluster['cluster_name'], to_be_master['id'])
                try_cnt += 1
                time.sleep(1)
            self.assertEquals(master_id, to_be_master['id'], 'change %d to a master fail' % to_be_master['id'])

        # Print initial state of cluster
        util.log('\n\n\n ### INITIAL STATE OF CLUSTER ### ')
        initial_state = []
        self.assertTrue(util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, initial_state, check_quorum=True), 'failed to check cluster state')

        # Set SMR option (slave_idle_timeout)
        util.log('\n\n\n ### Set SMR option ###')
        for s in cluster['servers']:
            t = telnet.Telnet('SMR%d' % s['id'])
            self.assertEqual(t.connect(s['ip'], s['smr_mgmt_port']), 0,
                    'Failed to connect to smr. ADDR=%s:%d' % (s['ip'], s['smr_mgmt_port']))
            cmd = 'confset slave_idle_timeout_msec 18000'
            util.log('[%s:%d] >> %s' % (s['ip'], s['smr_mgmt_port'], cmd))
            t.write('confset slave_idle_timeout_msec 18000\r\n')
            reply = t.read_until('\r\n').strip()
            util.log('[%s:%d] << %s' % (s['ip'], s['smr_mgmt_port'], reply))
            self.assertEqual(reply, '+OK', 'Failed to set slave_idle_timeout, REPLY=%s' % reply)

        # Network isolation test
        for loop_cnt in range(3):
            # Block network
            util.log('\n\n\n ### BLOCK NETWORK, %d ### ' % loop_cnt)
            for s in cluster['servers']:
                self.assertTrue(util.iptables_drop('A', '127.0.0.100', s['smr_mgmt_port']), 'add a bloking role to iptables fail.')

            for i in range(4):
                util.log('waiting... %d' % (i + 1))
                time.sleep(1)

            # Check cluster state
            ok = False
            for i in range(7):
                isolated_states = []
                util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, isolated_states, check_quorum=True)
                time.sleep(1)

                state_transition_done = True
                for s in isolated_states:
                    if s['ip'] != '127.0.0.100':
                        continue

                    if s['active_role'] != '?' or s['mgmt_role'] != 'N':
                        state_transition_done = False

                if state_transition_done :
                    ok = True
                    break
                time.sleep(1)
            self.assertTrue(ok, 'Fail, state transition')

            pgs_list = util.get_pgs_info_list(mgmt_ip, mgmt_port, cluster)
            reds = filter(lambda x: x['color'] == 'RED', pgs_list)

            # Shutdown
            server = cluster['servers'][random.choice(reds)['pgs_id']]
            util.log( 'shutdown pgs%d while hanging.' % server['id'] )
            ret = testbase.request_to_shutdown_smr( server )
            self.assertEqual( ret, 0, 'failed to shutdown smr. id:%d' % server['id'] )
            ret = testbase.request_to_shutdown_redis( server )
            self.assertEqual( ret, 0, 'failed to shutdown redis. id:%d' % server['id'] )

            # Check state F
            max_try = 20
            expected = 'F'
            for i in range( 0, max_try):
                util.log('MGMT_IP:%s, MGMT_PORT:%d' % (mgmt_ip, mgmt_port))
                state = util._get_smr_state( server['id'], cluster['cluster_name'], mgmt_ip, mgmt_port )
                if expected == state:
                    break;
                time.sleep( 1 )
            self.assertEqual( expected , state,
                               'server%d - state:%s, expected:%s' % (server['id'], state, expected) )
            util.log( 'succeeded : pgs%d state changed to F.' % server['id'] )

            # Unblock network
            for s in cluster['servers']:
                self.assertTrue(util.iptables_drop('D', '127.0.0.100', s['smr_mgmt_port']), 'delete a bloking role to iptables fail.')

            # Check cluster state
            ok = False
            for i in range(10):
                final_state = []
                util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, final_state, check_quorum=True)

                state_consistency = True
                for s in final_state:
                    if s['pgs_id'] == server['id']:
                        continue

                    if is_pgs_normal(s) == False:
                        state_consistency = False

                if state_consistency:
                    ok = True
                    break
                time.sleep(1)
            self.assertTrue(ok, 'Fail, state consistency')

            # Recovery
            util.log( 'restart pgs%d.' % server['id'] )
            ret = testbase.request_to_start_smr( server )
            self.assertEqual( ret, 0, 'failed to start smr. id:%d' % server['id'] )

            ret = testbase.request_to_start_redis( server )
            self.assertEqual( ret, 0, 'failed to start redis. id:%d' % server['id'] )

            wait_count = 20
            ret = testbase.wait_until_finished_to_set_up_role( server, wait_count )
            self.assertEqual( ret, 0, 'failed to role change. smr_id:%d' % (server['id']) )

            redis = redis_mgmt.Redis( server['id'] )
            ret = redis.connect( server['ip'], server['redis_port'] )
            self.assertEqual( ret, 0, 'failed to connect to redis' )

            ok = False
            for i in xrange(5):
                ok = util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, check_quorum=True)
                if ok:
                    break
                else:
                    time.sleep(1)
            self.assertTrue(ok, 'failed to check cluster state')

            # Reset SMR option (slave_idle_timeout)
            t = telnet.Telnet('SMR%d' % server['id'])
            self.assertEqual(t.connect(server['ip'], server['smr_mgmt_port']), 0,
                    'Failed to connect to smr. ADDR=%s:%d' % (server['ip'], server['smr_mgmt_port']))
            cmd = 'confset slave_idle_timeout_msec 18000'
            util.log('[%s:%d] >> %s' % (server['ip'], server['smr_mgmt_port'], cmd))
            t.write('confset slave_idle_timeout_msec 18000\r\n')
            reply = t.read_until('\r\n').strip()
            util.log('[%s:%d] << %s' % (server['ip'], server['smr_mgmt_port'], reply))
            self.assertEqual(reply, '+OK', 'Failed to set slave_idle_timeout, REPLY=%s' % reply)

        # Check state
        self.assertNotEqual(initial_state, None, 'initial_state is None')
        self.assertNotEqual(final_state, None, 'final_state is None')

        initial_state = sorted(initial_state, key=lambda x: int(x['pgs_id']))
        final_state = sorted(final_state, key=lambda x: int(x['pgs_id']))
        for i in range(len(final_state)):
            msg = 'ts (%d)%d -> (%d)%d' % (initial_state[i]['pgs_id'], initial_state[i]['active_ts'], final_state[i]['pgs_id'], final_state[i]['active_ts'])
            util.log(msg)
            if initial_state[i]['pgs_id'] == 1:
                self.assertNotEqual(initial_state[i]['active_ts'], final_state[i]['active_ts'], msg)

        self.assertTrue(util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, check_quorum=True), 'failed to check cluster state')

        self.assertTrue(conf_checker.final_check())

        # Shutdown cluster
        default_cluster.finalize(cluster)
示例#46
0
 def setUp(self):
     util.set_process_logfile_prefix( 'TestFreeClient_%s' % self._testMethodName )
     ret = default_cluster.initialize_starting_up_smr_before_redis( self.cluster )
     if ret is not 0:
         default_cluster.finalize( self.cluster )
     return 0
示例#47
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 def tearDown(self):
     if default_cluster.finalize(self.cluster) is not 0:
         util.log('failed to test_local_proxy.finalize')
示例#48
0
 def tearDown(self):
     ret = default_cluster.finalize(self.cluster)
     self.assertEquals(ret, 0, 'failed to TestHeartbeatChecker.finalize')
     return 0
示例#49
0
 def tearDown(self):
     if default_cluster.finalize(self.cluster) is not 0:
         util.log('failed to TestScaleout.finalize')
     return 0
示例#50
0
 def tearDown(self):
     if default_cluster.finalize(self.cluster) is not 0:
         util.log('failed to test_basic_op.finalize')
    def test_6_repeat_isolation_and_no_opinion_linepay(self):
        util.print_frame()

        out = util.sudo('iptables -L')
        util.log('====================================================================')
        util.log('out : %s' % out)
        util.log('out.return_code : %d' % out.return_code)
        util.log('out.stderr : %s' % out.stderr)
        util.log('out.succeeded : %s' % out.succeeded)

        # Add forwarding role
        out = util.sudo('iptables -t nat -A OUTPUT -d 127.0.0.100 -p tcp -j DNAT --to-destination 127.0.0.1')
        self.assertTrue(out.succeeded, 'add a forwarding role to iptables fail. output:%s' % out)
        out = util.sudo('iptables -t nat -A PREROUTING -d 127.0.0.100 -p tcp -j DNAT --to-destination 127.0.0.1')
        self.assertTrue(out.succeeded, 'add a forwarding role to iptables fail. output:%s' % out)

        out = util.sudo('iptables -t nat -A OUTPUT -d 127.0.0.101 -p tcp -j DNAT --to-destination 127.0.0.1')
        self.assertTrue(out.succeeded, 'add a forwarding role to iptables fail. output:%s' % out)
        out = util.sudo('iptables -t nat -A PREROUTING -d 127.0.0.101 -p tcp -j DNAT --to-destination 127.0.0.1')
        self.assertTrue(out.succeeded, 'add a forwarding role to iptables fail. output:%s' % out)

        out = util.sudo('iptables -t nat -A OUTPUT -d 127.0.0.102 -p tcp -j DNAT --to-destination 127.0.0.1')
        self.assertTrue(out.succeeded, 'add a forwarding role to iptables fail. output:%s' % out)
        out = util.sudo('iptables -t nat -A PREROUTING -d 127.0.0.102 -p tcp -j DNAT --to-destination 127.0.0.1')
        self.assertTrue(out.succeeded, 'add a forwarding role to iptables fail. output:%s' % out)

        cluster_name = 'no_opinion'
        cluster = filter(lambda x: x['cluster_name'] == cluster_name, config.clusters)[0]
        util.log(util.json_to_str(cluster))

        self.leader_cm = cluster['servers'][0]

        # MGMT
        mgmt_ip = cluster['servers'][0]['real_ip']
        mgmt_port = cluster['servers'][0]['cm_port']

        # Create cluster
        ret = default_cluster.initialize_starting_up_smr_before_redis( cluster )
        self.assertEqual(0, ret, 'failed to TestMaintenance.initialize')

        # Print initial state of cluster
        util.log('\n\n\n ### INITIAL STATE OF CLUSTER ### ')
        initial_state = []
        self.assertTrue(util.check_cluster(cluster['cluster_name'], mgmt_ip, mgmt_port, initial_state, check_quorum=True), 'failed to check cluster state')

        # Network isolation test
        loop_cnt = 0
        while (loop_cnt < 20):
            loop_cnt += 1
            # Block network
            util.log('\n\n\n ### BLOCK NETWORK, %d ### ' % loop_cnt)
            out = util.sudo('iptables -A OUTPUT -d 127.0.0.102 -j DROP')
            self.assertTrue(out.succeeded, 'add a bloking role to iptables fail. output:%s' % out)

            for i in range(1):
                util.log('waiting... %d' % (i + 1))
                time.sleep(0.1)

            out = util.sudo('iptables -A OUTPUT -d 127.0.0.100 -j DROP')
            self.assertTrue(out.succeeded, 'add a bloking role to iptables fail. output:%s' % out)

            for i in range(3):
                util.log('waiting... %d' % (i + 1))
                time.sleep(1.2)

            out = util.sudo('iptables -A OUTPUT -d 127.0.0.101 -j DROP')
            self.assertTrue(out.succeeded, 'add a bloking role to iptables fail. output:%s' % out)

            for i in range(1):
                util.log('waiting... %d' % (i + 1))
                time.sleep(1)

            # Unblock network
            util.log('\n\n\n ### UNBLOCK NETWORK, %d ### ' % loop_cnt)
            out = util.sudo('iptables -D OUTPUT -d 127.0.0.102 -j DROP')
            self.assertTrue(out.succeeded, 'delete a bloking role to iptables fail. output:%s' % out)
            for i in range(0):
                util.log('waiting... %d' % (i + 1))
                time.sleep(1)
            out = util.sudo('iptables -D OUTPUT -d 127.0.0.100 -j DROP')
            self.assertTrue(out.succeeded, 'delete a bloking role to iptables fail. output:%s' % out)
            for i in range(0):
                util.log('waiting... %d' % (i + 1))
                time.sleep(1)
            out = util.sudo('iptables -D OUTPUT -d 127.0.0.101 -j DROP')
            self.assertTrue(out.succeeded, 'delete a bloking role to iptables fail. output:%s' % out)
            for i in range(3):
                util.log('waiting... %d' % (i + 1))
                time.sleep(1)

            # Print state of cluster
            util.log('\n ### STATE OF CLUSTER ### ')
            cluster_state = False
            for i in range(10):
                cluster_state = util.check_cluster(cluster_name, mgmt_ip, mgmt_port, initial_state, check_quorum=True)
                if cluster_state == True:
                    break
                else:
                    time.sleep(1)
            self.assertTrue(cluster_state, 'failed to check cluster state')

            all_in_f = True
            for s in cluster['servers']:
                if checkLastState(mgmt_ip, s['cm_port'], cluster_name, 0, 'F') == False:
                    all_in_f = False
                    break

            self.assertFalse(all_in_f, 'PGS0`s last state remains in F')

        # Shutdown cluster
        ret = default_cluster.finalize( cluster )
        self.assertEqual(ret, 0, 'failed to TestMaintenance.finalize')

        # Delete forwarding role
        out = util.sudo('iptables -t nat -D OUTPUT -d 127.0.0.100 -p tcp -j DNAT --to-destination 127.0.0.1')
        self.assertTrue(out.succeeded, 'delete a forwarding role to iptables fail. output:%s' % out)
        out = util.sudo('iptables -t nat -D PREROUTING -d 127.0.0.100 -p tcp -j DNAT --to-destination 127.0.0.1')
        self.assertTrue(out.succeeded, 'delete a forwarding role to iptables fail. output:%s' % out)

        out = util.sudo('iptables -t nat -D OUTPUT -d 127.0.0.101 -p tcp -j DNAT --to-destination 127.0.0.1')
        self.assertTrue(out.succeeded, 'delete a forwarding role to iptables fail. output:%s' % out)
        out = util.sudo('iptables -t nat -D PREROUTING -d 127.0.0.101 -p tcp -j DNAT --to-destination 127.0.0.1')
        self.assertTrue(out.succeeded, 'delete a forwarding role to iptables fail. output:%s' % out)

        out = util.sudo('iptables -t nat -D OUTPUT -d 127.0.0.102 -p tcp -j DNAT --to-destination 127.0.0.1')
        self.assertTrue(out.succeeded, 'delete a forwarding role to iptables fail. output:%s' % out)
        out = util.sudo('iptables -t nat -D PREROUTING -d 127.0.0.102 -p tcp -j DNAT --to-destination 127.0.0.1')
        self.assertTrue(out.succeeded, 'delete a forwarding role to iptables fail. output:%s' % out)