Exemplo n.º 1
0
    def test_inject_primary_after_promote(self):
        """ 
        Promote to standby, bring down primary segments, run gprecoverseg.
        """
        tinctest.logger.info("-failover to standby, inject primary segments, and recoverseg")
        # get standby host, port, and master data directory
        activatestdby = GpactivateStandby()
        self.standby_host = activatestdby.get_current_standby()
        self.standby_mdd = activatestdby.get_standby_dd()
        self.standby_port = activatestdby.get_standby_port()
        activatestdby.activate()   

        # bring down primary segments
        inject_cmd = 'gpfaultinjector -f postmaster -m async -y panic -r primary -H ALL'
        activatestdby.run_remote(self.standby_host, inject_cmd, self.standby_port, self.standby_mdd)

        # wait till segments come up in change tracking
        self.wait_till_changetracking_transition(self.standby_host, self.standby_port)

        # recoverseg from new master
        (rc, stdout) = activatestdby.run_remote(self.standby_host,'gprecoverseg -a',self.standby_port,self.standby_mdd)
        tinctest.logger.info("in test_inject_primary_after_promote:  gprecoverseg -a:  %s"%stdout)

        keyword = 'Segment Pairs in Resynchronization'
        self.wait_till_insync_transition(activatestdby,self.standby_host,self.standby_port,self.standby_mdd,keyword,False)

        # rebalance from new master
        (rc, stdout) = activatestdby.run_remote(self.standby_host,'gprecoverseg -ra',self.standby_port,self.standby_mdd)
        tinctest.logger.info("in test_inject_primary_after_promote:  gprecoverseg -ar:  %s"%stdout)

        # check if all segments are up and sync
        keyword = 'All segments are running normally'
        self.wait_till_insync_transition(activatestdby,self.standby_host,self.standby_port,self.standby_mdd, keyword, True)        
Exemplo n.º 2
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    def test_inject_mirror_after_promote(self):
        """ 
        Promote to standby, bring down mirror segments,run gprecoverseg.
        """
        tinctest.logger.info("-failover to standby, inject mirror segments, and recoverseg")
        # get standby host, port, and master data directory
        activatestdby = GpactivateStandby()
        self.standby_host = activatestdby.get_current_standby()
        self.standby_mdd = activatestdby.get_standby_dd()
        self.standby_port = activatestdby.get_standby_port()
        activatestdby.activate()   

        # inject the mirror segments from new master
        inject_cmd = 'gpfaultinjector  -f filerep_consumer  -m async -y fault -r mirror -H ALL'
        activatestdby.run_remote(self.standby_host, inject_cmd, self.standby_port, self.standby_mdd) 

        # wait till segments come up in change tracking
        self.wait_till_changetracking_transition(self.standby_host, self.standby_port)

        # recoverseg from new master
        (rc, stdout) = activatestdby.run_remote(self.standby_host,'gprecoverseg -a',self.standby_port,self.standby_mdd)
        tinctest.logger.info("in test_inject_mirror_after_promote:  gprecoverseg -a:  %s"%stdout) 

        # check if all segments are up and sync
        keyword = 'All segments are running normally'
        self.wait_till_insync_transition(activatestdby,self.standby_host,self.standby_port,self.standby_mdd,keyword, True)      
Exemplo n.º 3
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    def test_failover_insync(self):
        """ 
        bring down mirror segments,suspend in resync mode,failover to standby, run gprecoverseg.
        """
        tinctest.logger.info("-failover to standby in resync and recoverseg")
        # get standby host, port, and master data directory
        activatestdby = GpactivateStandby()
        self.standby_host = activatestdby.get_current_standby()
        self.standby_mdd = activatestdby.get_standby_dd()
        self.standby_port = activatestdby.get_standby_port()

        # bring down mirror segments and suspend
        Command('fault inject mirror segment', 'gpfaultinjector  -f filerep_consumer  -m async -y fault -r mirror -H ALL').run()

        # wait till segments come up in change tracking
        self.wait_till_changetracking_transition('localhost', os.environ['PGPORT'])

        Command('Injecting fault to suspend resync','gpfaultinjector -f filerep_resync -m async -y suspend -r primary -H ALL').run()
        Command('recover and suspend in insync','gprecoverseg -a').run()

        activatestdby.activate()   

        # Injecting Fault  to resume resync
        resume_resync_cmd = 'gpfaultinjector -f filerep_resync -m async -y resume -r primary -H ALL'
        activatestdby.run_remote(self.standby_host, resume_resync_cmd, self.standby_port, self.standby_mdd) 
        # Injecting Fault  to reset resync
        reset_resync_cmd = 'gpfaultinjector -f filerep_resync -m async -y reset -r primary -H ALL'
        activatestdby.run_remote(self.standby_host, reset_resync_cmd, self.standby_port, self.standby_mdd)

        # check if all segments are up and sync
        keyword = 'All segments are running normally'       
        self.wait_till_insync_transition(activatestdby,self.standby_host,self.standby_port,self.standby_mdd,keyword,True)        
Exemplo n.º 4
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 def test_gpstop_after_failover(self):
     tinctest.logger.info("test gpstop from new master after failover")
     activatestdby = GpactivateStandby()
     standby_host = activatestdby.get_current_standby()
     standby_port =  activatestdby.get_standby_port()
     standby_mdd = activatestdby.get_standby_dd()
     activatestdby.activate()    
     (rc,stdout)=activatestdby.run_remote(standby_host, rmt_cmd='gpstop -a -M fast',
                                               pgport=standby_port,standbydd=standby_mdd) 
     self.assertEqual(0,rc)
     activatestdby.run_remote(standby_host, rmt_cmd='gpstart -a',
                                               pgport=standby_port,
                                               standbydd=standby_mdd)
     self.gputil.failback_to_original_master(self.origin_mdd, standby_host, standby_mdd, standby_port) 
Exemplo n.º 5
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 def test_gpstop_after_failover(self):
     tinctest.logger.info("test gpstop from new master after failover")
     activatestdby = GpactivateStandby()
     standby_host = activatestdby.get_current_standby()
     standby_port =  activatestdby.get_standby_port()
     standby_mdd = activatestdby.get_standby_dd()
     activatestdby.activate()    
     (rc,stdout)=activatestdby.run_remote(standby_host, rmt_cmd='gpstop -a -M fast',
                                               pgport=standby_port,standbydd=standby_mdd) 
     self.assertEqual(0,rc)
     activatestdby.run_remote(standby_host, rmt_cmd='gpstart -a',
                                               pgport=standby_port,
                                               standbydd=standby_mdd)
     self.gputil.failback_to_original_master(self.origin_mdd, standby_host, standby_mdd, standby_port) 
Exemplo n.º 6
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    def test_inject_primary_after_promote(self):
        """ 
        Promote to standby, bring down primary segments, run gprecoverseg.
        """
        tinctest.logger.info(
            "-failover to standby, inject primary segments, and recoverseg")
        # get standby host, port, and master data directory
        activatestdby = GpactivateStandby()
        self.standby_host = activatestdby.get_current_standby()
        self.standby_mdd = activatestdby.get_standby_dd()
        self.standby_port = activatestdby.get_standby_port()
        activatestdby.activate()

        # bring down primary segments
        inject_cmd = 'gpfaultinjector -f postmaster -m async -y panic -r primary -H ALL'
        activatestdby.run_remote(self.standby_host, inject_cmd,
                                 self.standby_port, self.standby_mdd)

        # wait till segments come up in change tracking
        self.wait_till_changetracking_transition(self.standby_host,
                                                 self.standby_port)

        # recoverseg from new master
        (rc, stdout) = activatestdby.run_remote(self.standby_host,
                                                'gprecoverseg -a',
                                                self.standby_port,
                                                self.standby_mdd)
        tinctest.logger.info(
            "in test_inject_primary_after_promote:  gprecoverseg -a:  %s" %
            stdout)

        keyword = 'Segment Pairs in Resynchronization'
        self.wait_till_insync_transition(activatestdby, self.standby_host,
                                         self.standby_port, self.standby_mdd,
                                         keyword, False)

        # rebalance from new master
        (rc, stdout) = activatestdby.run_remote(self.standby_host,
                                                'gprecoverseg -ra',
                                                self.standby_port,
                                                self.standby_mdd)
        tinctest.logger.info(
            "in test_inject_primary_after_promote:  gprecoverseg -ar:  %s" %
            stdout)

        # check if all segments are up and sync
        keyword = 'All segments are running normally'
        self.wait_till_insync_transition(activatestdby, self.standby_host,
                                         self.standby_port, self.standby_mdd,
                                         keyword, True)
Exemplo n.º 7
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    def test_failover_in_change_track(self):
        """
        bring down mirror segments, failover to standby, run gprecoverseg.
        """
        tinctest.logger.info(
            "-failover to standby in change tracking  and recoverseg")
        # get standby host, port, and master data directory
        activatestdby = GpactivateStandby()
        self.standby_host = activatestdby.get_current_standby()
        self.standby_mdd = activatestdby.get_standby_dd()
        self.standby_port = activatestdby.get_standby_port()
        # bring down mirror segments
        Command(
            'fault inject mirror segment',
            'gpfaultinjector  -f filerep_consumer  -m async -y fault -r mirror -H ALL'
        ).run()
        activatestdby.activate()

        # wait till segments come up in change tracking
        self.wait_till_changetracking_transition(self.standby_host,
                                                 self.standby_port)

        (rc, stdout) = activatestdby.run_remote(self.standby_host,
                                                'gprecoverseg -a',
                                                self.standby_port,
                                                self.standby_mdd)
        tinctest.logger.info(
            "in test_failover_in_change_track:  gprecoverseg -a:  %s" % stdout)

        # check if all segments are up and sync
        keyword = 'All segments are running normally'
        self.wait_till_insync_transition(activatestdby, self.standby_host,
                                         self.standby_port, self.standby_mdd,
                                         keyword, True)
Exemplo n.º 8
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    def test_failover_insync(self):
        """ 
        bring down mirror segments,suspend in resync mode,failover to standby, run gprecoverseg.
        """
        tinctest.logger.info("-failover to standby in resync and recoverseg")
        # get standby host, port, and master data directory
        activatestdby = GpactivateStandby()
        self.standby_host = activatestdby.get_current_standby()
        self.standby_mdd = activatestdby.get_standby_dd()
        self.standby_port = activatestdby.get_standby_port()

        # bring down mirror segments and suspend
        Command(
            'fault inject mirror segment',
            'gpfaultinjector  -f filerep_consumer  -m async -y fault -r mirror -H ALL'
        ).run()

        # wait till segments come up in change tracking
        self.wait_till_changetracking_transition('localhost',
                                                 os.environ['PGPORT'])

        Command(
            'Injecting fault to suspend resync',
            'gpfaultinjector -f filerep_resync -m async -y suspend -r primary -H ALL'
        ).run()
        Command('recover and suspend in insync', 'gprecoverseg -a').run()

        activatestdby.activate()

        # Injecting Fault  to resume resync
        resume_resync_cmd = 'gpfaultinjector -f filerep_resync -m async -y resume -r primary -H ALL'
        activatestdby.run_remote(self.standby_host, resume_resync_cmd,
                                 self.standby_port, self.standby_mdd)
        # Injecting Fault  to reset resync
        reset_resync_cmd = 'gpfaultinjector -f filerep_resync -m async -y reset -r primary -H ALL'
        activatestdby.run_remote(self.standby_host, reset_resync_cmd,
                                 self.standby_port, self.standby_mdd)

        # check if all segments are up and sync
        keyword = 'All segments are running normally'
        self.wait_till_insync_transition(activatestdby, self.standby_host,
                                         self.standby_port, self.standby_mdd,
                                         keyword, True)
Exemplo n.º 9
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 def test_promote_incomplete_stdby(self):
     ''' 
     remove the standby base dir, try promote and check if fail       
     '''
     gpactivate_stdby = GpactivateStandby()
     gpinit_stdby = GpinitStandby()
     stdby_mdd = gpactivate_stdby.get_standby_dd()
     stdby_host = gpinit_stdby.get_standbyhost()
     stdby_port = gpactivate_stdby.get_standby_port()
     destDir = os.path.join(stdby_mdd, 'base')
     self.pgutil.clean_dir(stdby_host,destDir)
     promote_cmd = "pg_ctl promote -D %s"%stdby_mdd       
     (rc, output) = gpactivate_stdby.run_remote(stdby_host,promote_cmd ,stdby_port,stdby_mdd)
     self.assertEqual(rc, 0)
     pid = self.pgutil.get_pid_by_keyword(host=stdby_host, pgport=stdby_port, keyword='master', option='bin')
     self.assertTrue(int(pid) == -1, 'incomplete standby data directory promote succeeds.')
Exemplo n.º 10
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 def test_promote_incomplete_stdby(self):
     ''' 
    remove the standby base dir, try promote and check if fail       
    '''
     gpactivate_stdby = GpactivateStandby()
     gpinit_stdby = GpinitStandby()
     stdby_mdd = gpactivate_stdby.get_standby_dd()
     stdby_host = gpinit_stdby.get_standbyhost()
     stdby_port = gpactivate_stdby.get_standby_port()
     destDir = os.path.join(stdby_mdd, 'base')
     self.pgutil.clean_dir(stdby_host, destDir)
     promote_cmd = "pg_ctl promote -D %s" % stdby_mdd
     (rc, output) = gpactivate_stdby.run_remote(stdby_host, promote_cmd,
                                                stdby_port, stdby_mdd)
     self.assertEqual(rc, 0)
     pid = self.pgutil.get_pid_by_keyword(host=stdby_host,
                                          pgport=stdby_port,
                                          keyword='master',
                                          option='bin')
     self.assertTrue(
         int(pid) == -1,
         'incomplete standby data directory promote succeeds.')
Exemplo n.º 11
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class OODClass(MPPTestCase):
    

    def __init__(self,methodName):
        self.gp = GpactivateStandby()
        self.verify = StandbyVerify()
        self.config = GPDBConfig()
        self.disk = Disk()
        self.sdby_mdd = os.environ.get('MASTER_DATA_DIRECTORY')
        self.pgport = os.environ.get('PGPORT')
        super(OODClass,self).__init__(methodName)

    def initiate_standby(self):
        self.gp.create_standby(local='no')


    def check_standby(self):
        self.assertFalse(self.verify.check_standby_processes())

    def get_standby_dbid(self):
       std_sql = "select dbid from gp_segment_configuration where content='-1' and role='m';"
       standby_dbid = PSQL.run_sql_command(std_sql, flags = '-q -t', dbname= 'template1')
       return standby_dbid.strip()

    def restart_standby(self):
        sdby_host =  self.config.get_master_standbyhost()
        stdby_dbid = self.get_standby_dbid()
        cmd="pg_ctl -D %s -o '-p %s --gp_dbid=%s --gp_num_contents_in_cluster=2 --silent-mode=true -i -M master --gp_contentid=-1 -x 0 -E' start &"%(self.sdby_mdd, self.pgport, stdby_dbid)
        self.assertTrue(self.gp.run_remote(sdby_host,cmd, self.pgport, self.sdby_mdd))
        self.assertTrue(self.verify.check_standby_processes())

    def check_diskusage(self, host):  # This now checks for only /data
        (rc, result) = self.disk.get_disk_usage(host, '/data')
        if rc != 0:
            raise Exception ("The specified mount /data is not present for the device")
        else:
            available_usage = result
            return available_usage

    def _fill(self, filename, host):
        cmd_prefix = "ssh " +host+ " \""
        cmd_postfix = "\""
        location = '/data'
        if not os.path.isdir('%s/diskfill/' % location):
            os.makedirs('%s/diskfill/' % location)
        cmd_str = cmd_prefix + "dd if=/dev/zero bs=16384K count=2000 of=" +location+ "/diskfill/" + filename +cmd_postfix
        cmd = Command(name='Fill Disk', cmdStr=cmd_str)
        tinctest.logger.info(" %s" % cmd)
        cmd.run(validateAfter=False)
        result = cmd.get_results()
        if result.rc !=0:
            tinctest.logger.error('disk fill not working. Its already full')

    
    def filldisk(self):
        host =  self.config.get_master_standbyhost()
        disk_usage = self.check_diskusage(host)
        i = 0
        while(int(disk_usage.strip()) >1000000):
            filename = 'new_space_%s' % i
            self._fill(filename, host)
            i +=1
            disk_usage = self.check_diskusage(host)

    def remove_fillfiles(self, filename, host):
        location = '/data'
        cmd_str = "ssh %s rm %s/diskfill/%s*" % (host,location, filename)
        cmd = Command(name='Remove fill files', cmdStr=cmd_str)
        tinctest.logger.info(" %s" % cmd)
        cmd.run(validateAfter=False)
        result = cmd.get_results()
        if result.rc !=0:
            raise Exception('Unable to delete the fill files')
        return

        
    def cleanup(self):
        host =  self.config.get_master_standbyhost()
        self.remove_fillfiles('new_space', host)    
        #Recover segemnts in case segments and standby were on the same host
        cmd = Command(name='gprecoverseg', cmdStr='gprecoverseg -a')
        tinctest.logger.info(" %s" % cmd)
        cmd.run(validateAfter=False)
        result = cmd.get_results()
        if result.rc !=0:
            raise Exception('gprecoverseg failed')
        while(self.config.is_not_insync_segments() == False):
                tinctest.logger.info('Waiting for DB to be in sync')    
Exemplo n.º 12
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class OODClass(MPPTestCase):
    def __init__(self, methodName):
        self.gp = GpactivateStandby()
        self.verify = StandbyVerify()
        self.config = GPDBConfig()
        self.disk = Disk()
        self.sdby_mdd = os.environ.get('MASTER_DATA_DIRECTORY')
        self.pgport = os.environ.get('PGPORT')
        super(OODClass, self).__init__(methodName)

    def initiate_standby(self):
        self.gp.create_standby(local='no')

    def check_standby(self):
        self.assertFalse(self.verify.check_standby_processes())

    def get_standby_dbid(self):
        std_sql = "select dbid from gp_segment_configuration where content='-1' and role='m';"
        standby_dbid = PSQL.run_sql_command(std_sql,
                                            flags='-q -t',
                                            dbname='template1')
        return standby_dbid.strip()

    def restart_standby(self):
        sdby_host = self.config.get_master_standbyhost()
        stdby_dbid = self.get_standby_dbid()
        cmd = "pg_ctl -D %s -o '-p %s -b %s -z 2 --silent-mode=true -i -M master -C -1 -x 0 -E' start &" % (
            self.sdby_mdd, self.pgport, stdby_dbid)
        self.assertTrue(
            self.gp.run_remote(sdby_host, cmd, self.pgport, self.sdby_mdd))
        self.assertTrue(self.verify.check_standby_processes())

    def check_diskusage(self, host):  # This now checks for only /data
        (rc, result) = self.disk.get_disk_usage(host, '/data')
        if rc != 0:
            raise Exception(
                "The specified mount /data is not present for the device")
        else:
            available_usage = result
            return available_usage

    def _fill(self, filename, host):
        cmd_prefix = "ssh " + host + " \""
        cmd_postfix = "\""
        location = '/data'
        if not os.path.isdir('%s/diskfill/' % location):
            os.makedirs('%s/diskfill/' % location)
        cmd_str = cmd_prefix + "dd if=/dev/zero bs=16384K count=2000 of=" + location + "/diskfill/" + filename + cmd_postfix
        cmd = Command(name='Fill Disk', cmdStr=cmd_str)
        tinctest.logger.info(" %s" % cmd)
        cmd.run(validateAfter=False)
        result = cmd.get_results()
        if result.rc != 0:
            tinctest.logger.error('disk fill not working. Its already full')

    def filldisk(self):
        host = self.config.get_master_standbyhost()
        disk_usage = self.check_diskusage(host)
        i = 0
        while (int(disk_usage.strip()) > 1000000):
            filename = 'new_space_%s' % i
            self._fill(filename, host)
            i += 1
            disk_usage = self.check_diskusage(host)

    def remove_fillfiles(self, filename, host):
        location = '/data'
        cmd_str = "ssh %s rm %s/diskfill/%s*" % (host, location, filename)
        cmd = Command(name='Remove fill files', cmdStr=cmd_str)
        tinctest.logger.info(" %s" % cmd)
        cmd.run(validateAfter=False)
        result = cmd.get_results()
        if result.rc != 0:
            raise Exception('Unable to delete the fill files')
        return

    def cleanup(self):
        host = self.config.get_master_standbyhost()
        self.remove_fillfiles('new_space', host)
        #Recover segemnts in case segments and standby were on the same host
        cmd = Command(name='gprecoverseg', cmdStr='gprecoverseg -a')
        tinctest.logger.info(" %s" % cmd)
        cmd.run(validateAfter=False)
        result = cmd.get_results()
        if result.rc != 0:
            raise Exception('gprecoverseg failed')
        while (self.config.is_not_insync_segments() == False):
            tinctest.logger.info('Waiting for DB to be in sync')
Exemplo n.º 13
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class GpstateTestCase(MPPTestCase):
   '''testcase for gpstart''' 
   
   origin_mdd = os.environ.get('MASTER_DATA_DIRECTORY')

   def __init__(self,methodName):
       self.gputil = GpUtility()
       self.mirrorConfig = []
       self.master_port = os.environ.get('PGPORT')
       self.masterdd = os.environ.get('MASTER_DATA_DIRECTORY')
       self.activatestdby = ""
       super(GpstateTestCase,self).__init__(methodName)
    
   def setUp(self):
       self.gputil.check_and_start_gpdb()     
       stdby_presence = self.gputil.check_standby_presence()
       if stdby_presence:
           self.gputil.remove_standby()
       self.gputil.install_standby()
       get_mirror_sql = '''select port, hostname, fselocation
                      from gp_segment_configuration, pg_filespace_entry 
                      where dbid = fsedbid and content != -1 and preferred_role=\'m\' ;'''
       segments=self.gputil.run_SQLQuery(get_mirror_sql, dbname='template1')  
       for seg in segments:
           port = seg[0]
           host = seg[1]
           dir = seg[2]
           self.mirrorConfig.append(port)
           self.mirrorConfig.append(host)
           self.mirrorConfig.append(dir)

       self.activatestdby = GpactivateStandby()
           
   def tearDown(self):
       del self.mirrorConfig[:]
       self.gputil.remove_standby()

   def test_gpstate_disp_recovery(self):
       ''' run gpstate with -f option'''       
       standby_host = self.activatestdby.get_current_standby()
       standby_port =  self.activatestdby.get_standby_port()
       standby_dir = self.activatestdby.get_standby_dd()
       standby_pid = self.gputil.get_pid_by_keyword(host=standby_host, user=os.environ.get('USER'), 
                                                   pgport=standby_port,keyword='master',option='bin')
       (rc, stdout) = self.gputil.run('gpstate -f')
       self.assertEqual(rc, 0)
       context = stdout.split('\n')
       for line in context:
           if "=" not in line:
               continue
           items = line.split('=')
           if "Standby address" in line:  
               stdby_addr = items[1].strip()             
               self.assertEqual(stdby_addr, standby_host)
           elif "Standby data directory" in line:
               stdby_dir = items[1].strip()
               self.assertEqual(stdby_dir, standby_dir)
           elif "Standby port" in line:
               stdby_port = int(items[1].strip())
               self.assertEqual(stdby_port, int(standby_port))
           elif "Standby PID" in line:
               pid = items[1].strip()
               self.assertEqual(pid, standby_pid)       
         
            
   def test_gpstate_disp_failover(self):
       '''test if the master configuration detail changed after activating standby'''
       standby_host = self.activatestdby.get_current_standby()
       standby_port = self.activatestdby.get_standby_port()
       standby_dir = self.activatestdby.get_standby_dd()
       standby_pid = self.gputil.get_pid_by_keyword(host=standby_host, user=os.environ.get('USER'), 
                                                   pgport=standby_port,keyword='master',option='bin')
       self.activatestdby.activate()
       (rc,stdout)=self.activatestdby.run_remote(standby_host, rmt_cmd='gpstate -s',
                                                 pgport=standby_port,
                                                 standbydd=standby_dir)
       self.assertIn(rc, (0,1))
       context = stdout.split('\n')
       for line in context:
           if "=" not in line:
               continue
           items = line.strip().split('=')
           if "Master host" in line:
               master_host = items[1].strip()               
               self.assertEqual(master_host, standby_host)
           elif "Master postgres process ID" in line:
               master_pid = items[1].strip()
               self.assertEqual(master_pid, standby_pid)
           elif "Master data directory" in line:
               master_dir = items[1].strip()
               self.assertEqual(master_dir, standby_dir)
           elif "Master port" in line:
               master_port = int(items[1].strip())
               self.assertEqual(master_port, int(standby_port))
       self.gputil.failback_to_original_master(self.origin_mdd,standby_host,standby_dir,standby_port)
 

   def test_gpstate_active_segment_failover(self):
       ''' test if gpstate show correct # of up and down nodes after failover'''
       count_up_seg = '''select count(*) from gp_segment_configuration 
                      where content != -1 and status = \'u\';'''   
       count_down_seg = '''select count(*) from gp_segment_configuration 
                      where content != -1 and status = \'d\';''' 
       number_up_segment = PSQL.run_sql_command(count_up_seg, flags = '-q -t', dbname='template1')   
       number_down_segment = PSQL.run_sql_command(count_down_seg, flags = '-q -t', dbname='template1') 
       standby_host = self.activatestdby.get_current_standby()
       standby_port =  self.activatestdby.get_standby_port()
       standby_dir = self.activatestdby.get_standby_dd()
       self.activatestdby.activate() 
       (rc,stdout)=self.activatestdby.run_remote(standby_host, rmt_cmd='gpstate -Q',
                                                 pgport=standby_port,
                                                 standbydd=standby_dir)
       self.assertIn(rc, (0,1))
       context = stdout.split('\n')
       for line in context:
           if "=" not in line:
               continue
           items = line.strip().split('=')
           if "up segments" in line:
               self.assertEqual(number_up_segment.strip(),items[1].strip())
           elif "down segments" in line:
               self.assertEqual(number_down_segment.strip(),items[1].strip())
       self.gputil.failback_to_original_master(self.origin_mdd,standby_host,standby_dir,standby_port)
      
   
   def test_gpstate_disp_mirror_failover(self):
       ''' check if new master is able to get correct mirror configuration with gpstate -m'''
       inside_block = False 
       keywords = ("Mirror","Datadir","Port")
       standby_host = self.activatestdby.get_current_standby()
       standby_port =  self.activatestdby.get_standby_port()
       standby_dir = self.activatestdby.get_standby_dd()
       self.activatestdby.activate()    
       (rc,stdout)=self.activatestdby.run_remote(standby_host, rmt_cmd='gpstate -m',
                                                 pgport=standby_port,
                                                 standbydd=standby_dir) 
       self.assertEqual(rc, 0) 
       for line in stdout:
           if inside_block:
               line_split = line.split('')
               line_split = [elem for elem in line_split if elem != '']
               mirror_host = line_split[2]
               mirror_dir = line_split[3]
               mirror_port = line_split[4]
               self.assertTrue(mirror_host in self.mirrorConfig)
               self.assertTrue(mirror_dir in self.mirrorConfig)                      
               self.assertTrue(mirror_port in self.mirrorConfig)
           elif not all (s in line for s in keywords):
               continue
           else:
               inside_block = True
       self.gputil.failback_to_original_master(self.origin_mdd,standby_host,standby_dir,standby_port)