def tearDown(self):
# each test should wait for the wal sender to disappear
for i in walrepl.polling(30, 0.5):
with PGconn("") as conn:
cnt = self.count_walsender(conn)
if cnt <= 0:
break
def tearDown(self):
# each test should wait for the wal sender to disappear
for i in walrepl.polling(30, 0.5):
with PGconn("") as conn:
cnt = self.count_walsender(conn)
if cnt <= 0:
break
def wait_triggered(self, fault_name):
search = "fault injection state:'triggered'"
for i in walrepl.polling(10, 3):
result = self.fault_status(fault_name)
stdout = result.stdout
if stdout.find(search) > 0:
return True
return False
def wait_triggered(self, fault_name):
search = "fault injection state:'triggered'"
for i in walrepl.polling(10, 3):
result = self.fault_status(fault_name)
stdout = result.stdout
if stdout.find(search) > 0:
return True
return False
def wait_for_walsender(self, nretry=30, interval=0.5):
"""
Wait for walsender to be active for a while, and returns when it
is. Finally the wait loop ends, in which case it returns 0.
"""
num_walsender = 0
for i in walrepl.polling(nretry, interval):
num_walsender = self.count_walsender()
if num_walsender > 0:
break
return num_walsender
def wait_for_walsender(self, nretry=30, interval=0.5):
"""
Wait for walsender to be active for a while, and returns when it
is. Finally the wait loop ends, in which case it returns 0.
"""
num_walsender = 0
for i in walrepl.polling(nretry, interval):
num_walsender = self.count_walsender()
if num_walsender > 0:
break
return num_walsender
def check_pg_stat_replication(self):
'''Check the state and sync_state from pg_stat_replication '''
for i in walrepl.polling(max_try=20, interval=0.5):
res = self.get_pg_stat_replication()
if len(res) == 0:
continue
elif res[0].state == 'streaming' and res[0].sync_state == 'sync':
tinctest.logger.info('pg_stat_replication is updated with the information')
return True
else:
continue
return False
def check_pg_stat_replication(self):
'''Check the state and sync_state from pg_stat_replication '''
for i in walrepl.polling(max_try=20, interval=0.5):
res = self.get_pg_stat_replication()
if len(res) == 0:
continue
elif res[0].state == 'streaming' and res[0].sync_state == 'sync':
tinctest.logger.info(
'pg_stat_replication is updated with the information')
return True
else:
continue
return False
def test_unixsocket(self):
"""
Connect via unit socket to walsender.
@tags sanity
"""
with PGconn("") as conn:
# gp_libpq_fe doesn't use PGHOST env var, so without giving
# explicit hostname, it should use unix domain socket.
res = conn.execute("SELECT test_connect('')")
self.assertEqual(res.status(), PGRES_TUPLES_OK)
res = conn.execute("SELECT * FROM pg_stat_replication")
tup = res.pyobjects().pop(0)
# client_addr will be NULL in unix socket case
self.assertIsNone(tup.client_addr)
# client_port will be -1 in unix socket case
self.assertEqual(tup.client_port, -1)
self.assertIsNotNone(tup.sent_location)
# catch up to the primary
for i in walrepl.polling(100, 0.5):
res = conn.execute("SELECT test_receive()")
if not res.getpyvalue(0, 0):
break
res = conn.execute("SELECT pg_current_xlog_location()")
current_xlog_location = res.getvalue(0, 0)
res = conn.execute("SELECT * FROM pg_stat_replication")
tup = res.pyobjects().pop(0)
# sent_location follows current_xlog_location.
# They don't necessarily match, as there should be some
# window between write and send.
self.assertTrue(tup.sent_location <= current_xlog_location)
def test_unixsocket(self):
"""
Connect via unit socket to walsender.
@tags sanity
"""
with PGconn("") as conn:
# gp_libpq_fe doesn't use PGHOST env var, so without giving
# explicit hostname, it should use unix domain socket.
res = conn.execute("SELECT test_connect('')")
self.assertEqual(res.status(), PGRES_TUPLES_OK)
res = conn.execute("SELECT * FROM pg_stat_replication")
tup = res.pyobjects().pop(0)
# client_addr will be NULL in unix socket case
self.assertIsNone(tup.client_addr)
# client_port will be -1 in unix socket case
self.assertEqual(tup.client_port, -1)
self.assertIsNotNone(tup.sent_location)
# catch up to the primary
for i in walrepl.polling(100, 0.5):
res = conn.execute("SELECT test_receive()")
if not res.getpyvalue(0, 0):
break
res = conn.execute("SELECT pg_current_xlog_location()")
current_xlog_location = res.getvalue(0, 0)
res = conn.execute("SELECT * FROM pg_stat_replication")
tup = res.pyobjects().pop(0)
# sent_location follows current_xlog_location.
# They don't necessarily match, as there should be some
# window between write and send.
self.assertTrue(tup.sent_location <= current_xlog_location)
def test_async(self):
"""
Run sendtest in async mode.
@tags sanity
"""
PSQL.run_sql_command('DROP TABLE IF EXISTS foo')
with WalClient("replication=true") as client:
self.assertEqual(client.status(), CONNECTION_OK)
(sysid, tli, xpos) = client.identify_system()
xpos_ptr = XLogRecPtr.from_string(xpos)
client.start_replication(xpos_ptr, sync=False)
# wouldn't block since it's async connection.
PSQL.run_sql_command('CREATE TABLE foo(a int, b int)')
# it may take time to get complete message
for i in walrepl.polling(10, 0.5):
msg = client.receive(1000)
if isinstance(msg, WalMessageData):
break
self.assertIsInstance(msg, WalMessageData)
def test_disconnect(self):
"""
@tags sanity
"""
with PGconn("") as conn:
# check disconnect does not fail even before connect
res = conn.execute("SELECT test_disconnect()")
self.assertEqual(res.status(), PGRES_TUPLES_OK)
self.assertTrue(res.getvalue(0, 0, convert=True))
# check if disconnect clears the walsender
res = conn.execute("SELECT test_connect('')")
self.assertEqual(res.status(), PGRES_TUPLES_OK)
res = conn.execute("SELECT test_disconnect()")
self.assertEqual(res.status(), PGRES_TUPLES_OK)
# wait for the backend terminates...
for i in walrepl.polling(10, 0.5):
cnt = self.count_walsender(conn)
if cnt == 0:
break
self.assertEqual(cnt, 0)
def test_disconnect(self):
"""
@tags sanity
"""
with PGconn("") as conn:
# check disconnect does not fail even before connect
res = conn.execute("SELECT test_disconnect()")
self.assertEqual(res.status(), PGRES_TUPLES_OK)
self.assertTrue(res.getvalue(0, 0, convert=True))
# check if disconnect clears the walsender
res = conn.execute("SELECT test_connect('')")
self.assertEqual(res.status(), PGRES_TUPLES_OK)
res = conn.execute("SELECT test_disconnect()")
self.assertEqual(res.status(), PGRES_TUPLES_OK)
# wait for the backend terminates...
for i in walrepl.polling(10, 0.5):
cnt = self.count_walsender(conn)
if cnt == 0:
break
self.assertEqual(cnt, 0)
def test_async(self):
"""
Run sendtest in async mode.
@tags sanity
"""
PSQL.run_sql_command('DROP TABLE IF EXISTS foo')
with WalClient("replication=true") as client:
self.assertEqual(client.status(), CONNECTION_OK)
(sysid, tli, xpos) = client.identify_system()
xpos_ptr = XLogRecPtr.from_string(xpos)
client.start_replication(xpos_ptr, sync=False)
# wouldn't block since it's async connection.
PSQL.run_sql_command('CREATE TABLE foo(a int, b int)')
# it may take time to get complete message
for i in walrepl.polling(10, 0.5):
msg = client.receive(1000)
if isinstance(msg, WalMessageData):
break
self.assertIsInstance(msg, WalMessageData)
def test_smart_shutdown(self):
# 1. Verify if the system is UP and there is no WAL Receiver running
# 2. Perform basebackup and deploy it into some dest. directory
# 3. Copy recover.conf into the dest. directory to be used by Standby
# 4. Initiate the Standby using the Master (primary) postmaster
# paramerters
# 5. Perform some transaction to generate xlog. Then do a smart shutdown
# 6. Once the primary DB is down, find the last checkpoint from pg_control
# on primary. Check the last modified xlog seg from the standby and find
# if the last checkpoint from primary exists
# 7. It should be present there!
# 0. Stop standby if it's running
PSQL.run_sql_command('DROP table if exists foo')
standby = Standby('base', 5433)
standby.stop()
# 1. Verify if the system is UP and there is no WAL sender running
self.assertEqual(self.count_walsender(), 0)
logger.info('No active WAL Receiver found')
# 2. Perform basebackup and deploy it into some dest.
# (currenttly hardcoded 'base') directory
shutil.rmtree('base', True)
logger.info('Performing and deploying base backup ...')
standby.create()
# 3.Copy recover.conf into the dest. directory to be used by StandBy
logger.info('Deploying recovery.conf...')
# 4. Initiate the StandBy using the Master (primary) postmaster
# paramerters
logger.info('Initiating Standby...')
res = standby.start()
self.assertTrue(res.wasSuccessful())
num_walsender = 0
for i in polling(10, 0.5):
num_walsender = self.count_walsender()
if num_walsender > 0:
break
self.assertEqual(num_walsender, 1)
logger.info('Activated WAL Receiver...')
# 5. Perform some transaction to generate xlog. Then do a smart shutdown
logger.info('Perform some transaction to generate some XLOG')
PSQL.run_sql_command('Create table foo (a int)')
logger.info('Now perform smart shutdown (gpstop -a)')
cmd = Command(name="gpstop smart",
cmdStr="source %s/greenplum_path.sh;\
gpstop -a" % os.environ["GPHOME"])
cmd.run(validateAfter=True)
# 6. Once the primary DB is down, find the last checkpoint from pg_control
# on primary. Check the last modified xlog seg from the standby and find
# if the last checkpoint from primary exists
logger.info('Read the pg_control from primary, find the last checkpoint & see if it made to standby')
standby_xlog_path = os.path.join('base','pg_xlog')
cmd= Command(name = 'pg_controldata ' + os.environ.get('MASTER_DATA_DIRECTORY'),
cmdStr = 'pg_controldata ' + os.environ.get('MASTER_DATA_DIRECTORY'))
cmd.run(validateAfter=True);
primary_last_ckpt_lsn = self.last_ckpt_lsn((cmd.get_results()).stdout)
logger.info ("Primary last checkpoint LSN = " + primary_last_ckpt_lsn)
standby_last_mod_xlog = self.last_mod_file(standby_xlog_path)
logger.info ("Last mod standby XLOG = " + standby_last_mod_xlog )
cmd= Command(name = 'xlogdump standby last modifiled xlog',
cmdStr="xlogdump " + standby_last_mod_xlog)
cmd.run(validateAfter=True);
logger.info('See if we find the shutdown LSN in the XLOG seg file')
lines = (cmd.get_results()).stdout.splitlines()
flag = False
for line in range(0, len(lines) - 1):
if ((lines[line]).find(primary_last_ckpt_lsn) > -1):
self.assertTrue((lines[line]).find("checkpoint") > -1)
self.assertTrue((lines[line]).find("shutdown") > -1)
flag = True
break
self.assertTrue(flag)
logger.info('PASS')
# Re-start the database
logger.info('Now restart the DB (gpstart -a)')
cmd = Command(name="gpstop smart",
cmdStr="source %s/greenplum_path.sh;\
gpstart -a" % os.environ["GPHOME"])
cmd.run(validateAfter=True)
# Cleanup. Currently we dont have a clean way of WAL rcv dying
logger.info('Kill the standby processes as clean standby killing is not supported')
cmd = Command(name="kill standby",
cmdStr="kill -9 `ps -ef | grep 5433 | grep -v grep | awk '{print $2}'`")
cmd.run(validateAfter=True)
def test_icg(self):
# 1. Verify if the system is UP and there is no WAL Receiver running
# 2. Perform basebackup and deploy it into some dest. directory
# 3. Copy recover.conf into the dest. directory to be used by Standby
# 4. Initiate the Standby using the Master (primary) postmaster
# paramerters
# 5. Once the WAL receiver waits for the next record to arrive, perform
# installCheck-good
# 0. Stop standby if it's running
standby = Standby('base', 5433)
standby.stop()
# 1. Verify if the system is UP and there is no WAL sender running
self.assertEqual(self.count_wal_sender(), 0)
logger.info('No active WAL Receiver found')
# Set environmental variable GPSRC for now for make installcheck purpose
source_file = sys.modules[self.__class__.__module__].__file__
source_dir = os.path.dirname(source_file)
os.environ['GPSRC'] = os.path.join(source_dir, '../../../../')
# 2. Perform basebackup and deploy it into some dest.
# (currenttly hardcoded 'base') directory
shutil.rmtree('base', True)
logger.info('Performing and deploying base backup ...')
standby.create()
# 3.Copy recover.conf into the dest. directory to be used by StandBy
logger.info('Deploying recovery.conf...')
# 4. Initiate the StandBy using the Master (primary) postmaster
# paramerters
logger.info('Initiating Standby...')
res = standby.start()
self.assertTrue(res.wasSuccessful())
num_walsender = 0
for i in polling(10, 0.5):
num_walsender = self.count_wal_sender()
if num_walsender > 0:
break
self.assertEqual(num_walsender, 1)
logger.info('Activated WAL Receiver...')
# 6. Run installcheck-good
self.assertTrue(os.environ["GPSRC"])
installCheckGoodPath = os.path.join(os.environ.get('GPSRC'), 'test',
'regress')
self.assertTrue(os.path.exists(installCheckGoodPath))
os.chdir(installCheckGoodPath)
regression_diffs = os.path.join(installCheckGoodPath,
'regression.diffs')
if os.path.exists(regression_diffs):
os.remove(regression_diffs)
logger.info('Perform InstallCheck-Good...')
subprocess.check_call('make installcheck-good', shell=True)
# Verify installcheck result by checking if regression.diff is present.
self.assertTrue(not os.path.exists(regression_diffs))
def test_icg(self):
# 1. Verify if the system is UP and there is no WAL Receiver running
# 2. Perform basebackup and deploy it into some dest. directory
# 3. Copy recover.conf into the dest. directory to be used by Standby
# 4. Initiate the Standby using the Master (primary) postmaster
# paramerters
# 5. Once the WAL receiver waits for the next record to arrive, perform
# installCheck-good
# 0. Stop standby if it's running
standby = Standby('base', 5433)
standby.stop()
# 1. Verify if the system is UP and there is no WAL sender running
self.assertEqual(self.count_wal_sender(), 0)
logger.info('No active WAL Receiver found')
# Set environmental variable GPSRC for now for make installcheck purpose
source_file = sys.modules[self.__class__.__module__].__file__
source_dir = os.path.dirname(source_file)
os.environ['GPSRC'] = os.path.join(source_dir, '../../../../')
# 2. Perform basebackup and deploy it into some dest.
# (currenttly hardcoded 'base') directory
shutil.rmtree('base', True)
logger.info('Performing and deploying base backup ...')
standby.create()
# 3.Copy recover.conf into the dest. directory to be used by StandBy
logger.info('Deploying recovery.conf...')
# 4. Initiate the StandBy using the Master (primary) postmaster
# paramerters
logger.info('Initiating Standby...')
res = standby.start()
self.assertTrue(res.wasSuccessful())
num_walsender = 0
for i in polling(10, 0.5):
num_walsender = self.count_wal_sender()
if num_walsender > 0:
break
self.assertEqual(num_walsender, 1)
logger.info('Activated WAL Receiver...')
# 6. Run installcheck-good
self.assertTrue(os.environ["GPSRC"])
installCheckGoodPath = os.path.join(os.environ.get('GPSRC'),
'test',
'regress')
self.assertTrue(os.path.exists(installCheckGoodPath))
os.chdir(installCheckGoodPath)
regression_diffs = os.path.join(installCheckGoodPath, 'regression.diffs')
if os.path.exists(regression_diffs):
os.remove(regression_diffs)
logger.info('Perform InstallCheck-Good...')
subprocess.check_call('make installcheck-good', shell=True)
# Verify installcheck result by checking if regression.diff is present.
self.assertTrue(not os.path.exists(regression_diffs))
def test_negative(self):
"""
This test verifies that if the WAL sender dies due to
to any reason ,it should not keep backends blocked on
replication waiting forever in sync-rep queue
"""
# Verify if the database is up. Run some sql.
logger.info('Verify the DB is up...')
PSQL.run_sql_command('DROP table if exists foo',
dbname=os.environ.get('PGDATABASE'))
Command('remove standby', 'gpinitstandby -ra').run()
self.assertEqual(self.standby.create(), 0)
# Trigger file cleanup
if (os.path.exists(os.path.join(self.standby.datadir,
'wal_rcv_test'))):
os.remove(os.path.join(self.standby.datadir, 'wal_rcv_test'))
# Setup a standby
logger.info('Setting up standby...')
res = self.standby.start()
self.assertTrue(res.wasSuccessful())
# Wait for the walreceiver to start
num_walsender = self.wait_for_walsender()
self.assertEqual(num_walsender, 1)
logger.info('Activated WAL Receiver...')
# Once the WAL receiver starts, signal it to suspend
wal_rcv_pid = self.get_pid_having_keyword('wal receiver process')
trigger_content = 'wait_before_send'
logger.info('Suspending WAL Receiver(' + str(wal_rcv_pid) + ') ' +
'with ' + trigger_content + '...')
self.generate_trigger_file(trigger_content)
os.kill(wal_rcv_pid, signal.SIGUSR2)
# Once suspended, spawn a new backend so that it gets blocked
# Confirm that its blocked
result = False
for i in walrepl.polling(20, 1):
sql = 'CREATE TABLE foo%s(a int, b int)' % str(i)
subprocess.Popen(['psql', '-c', sql],
stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
num_blocked = self.count_blocked()
if num_blocked >= 1:
result = True
break
self.assertTrue(result, "no backend blocked")
logger.info(
'The backend is blocked for replication (referred pg_stat_activity)...'
)
logger.info(
'Shutdown the standby to break the connection with Master...')
# Stop the standby as its of no use anymore
self.standby.stop()
# Verify that the wal sender died
num_walsender = self.count_walsender()
self.assertEqual(num_walsender, 0, "WAL sender has not gone")
logger.info('Wal sender is now dead...')
# Confirm that the there are no more replication waiting backends
# Thats the test
num_blocked = self.count_blocked()
self.assertEqual(num_blocked, 0,
str(num_blocked) + " backends still blocked")
logger.info('The backend is no more blocked...')
def test_negative(self):
"""
This test verifies that if the WAL sender dies due to
to any reason ,it should not keep backends blocked on
replication waiting forever in sync-rep queue
"""
# Verify if the database is up. Run some sql.
logger.info ('Verify the DB is up...')
PSQL.run_sql_command('DROP table if exists foo',dbname=os.environ.get('PGDATABASE'))
Command('remove standby', 'gpinitstandby -ra').run()
self.assertEqual(self.standby.create(), 0)
# Trigger file cleanup
if (os.path.exists(os.path.join(self.standby.datadir,
'wal_rcv_test'))):
os.remove(os.path.join(self.standby.datadir, 'wal_rcv_test'))
# Setup a standby
logger.info ('Setting up standby...')
res = self.standby.start()
self.assertTrue(res.wasSuccessful())
# Wait for the walreceiver to start
num_walsender = self.wait_for_walsender()
self.assertEqual(num_walsender, 1)
logger.info('Activated WAL Receiver...')
# Once the WAL receiver starts, signal it to suspend
wal_rcv_pid = self.get_pid_having_keyword('wal receiver process')
trigger_content = 'wait_before_send'
logger.info('Suspending WAL Receiver(' + str(wal_rcv_pid) +') ' +
'with ' + trigger_content + '...')
self.generate_trigger_file(trigger_content)
os.kill(wal_rcv_pid, signal.SIGUSR2)
# Once suspended, spawn a new backend so that it gets blocked
# Confirm that its blocked
result = False
for i in walrepl.polling(20, 1):
sql = 'CREATE TABLE foo%s(a int, b int)' % str(i)
subprocess.Popen(['psql', '-c', sql],
stdout=subprocess.PIPE, stderr=subprocess.PIPE)
num_blocked = self.count_blocked()
if num_blocked >= 1:
result = True
break
self.assertTrue(result, "no backend blocked")
logger.info('The backend is blocked for replication (referred pg_stat_activity)...')
logger.info('Shutdown the standby to break the connection with Master...')
# Stop the standby as its of no use anymore
self.standby.stop()
# Verify that the wal sender died, max within 1 min
for retry in range(1,30):
num_walsender = self.count_walsender()
if num_walsender == 0:
break;
logger.info('Wal sender still exists, retrying ...' + str(retry))
time.sleep(2);
self.assertEqual(num_walsender, 0, "WAL sender has not gone")
logger.info('Wal sender is now dead...')
# Confirm that the there are no more replication waiting backends
# Thats the test
num_blocked = self.count_blocked()
self.assertEqual(num_blocked, 0,
str(num_blocked) + " backends still blocked")
logger.info('The backend is no more blocked...')
def test_smart_shutdown(self):
# 1. Verify if the system is UP and there is no WAL Receiver running
# 2. Perform basebackup and deploy it into some dest. directory
# 3. Copy recover.conf into the dest. directory to be used by Standby
# 4. Initiate the Standby using the Master (primary) postmaster
# paramerters
# 5. Perform some transaction to generate xlog. Then do a smart shutdown
# 6. Once the primary DB is down, find the last checkpoint from pg_control
# on primary. Check the last modified xlog seg from the standby and find
# if the last checkpoint from primary exists
# 7. It should be present there!
# 0. Stop standby if it's running
PSQL.run_sql_command('DROP table if exists foo')
standby = Standby('base', 5433)
standby.stop()
# 1. Verify if the system is UP and there is no WAL sender running
self.assertEqual(self.count_walsender(), 0)
logger.info('No active WAL Receiver found')
# 2. Perform basebackup and deploy it into some dest.
# (currenttly hardcoded 'base') directory
shutil.rmtree('base', True)
logger.info('Performing and deploying base backup ...')
standby.create()
# 3.Copy recover.conf into the dest. directory to be used by StandBy
logger.info('Deploying recovery.conf...')
# 4. Initiate the StandBy using the Master (primary) postmaster
# paramerters
logger.info('Initiating Standby...')
res = standby.start()
self.assertTrue(res.wasSuccessful())
num_walsender = 0
for i in polling(10, 0.5):
num_walsender = self.count_walsender()
if num_walsender > 0:
break
self.assertEqual(num_walsender, 1)
logger.info('Activated WAL Receiver...')
# 5. Perform some transaction to generate xlog. Then do a smart shutdown
logger.info('Perform some transaction to generate some XLOG')
PSQL.run_sql_command('Create table foo (a int)')
logger.info('Now perform smart shutdown (gpstop -a)')
cmd = Command(name="gpstop smart",
cmdStr="source %s/greenplum_path.sh;\
gpstop -a" % os.environ["GPHOME"])
cmd.run(validateAfter=True)
# 6. Once the primary DB is down, find the last checkpoint from pg_control
# on primary. Check the last modified xlog seg from the standby and find
# if the last checkpoint from primary exists
logger.info(
'Read the pg_control from primary, find the last checkpoint & see if it made to standby'
)
standby_xlog_path = os.path.join('base', 'pg_xlog')
cmd = Command(
name='pg_controldata ' + os.environ.get('MASTER_DATA_DIRECTORY'),
cmdStr='pg_controldata ' + os.environ.get('MASTER_DATA_DIRECTORY'))
cmd.run(validateAfter=True)
primary_last_ckpt_lsn = self.last_ckpt_lsn((cmd.get_results()).stdout)
logger.info("Primary last checkpoint LSN = " + primary_last_ckpt_lsn)
standby_last_mod_xlog = self.last_mod_file(standby_xlog_path)
logger.info("Last mod standby XLOG = " + standby_last_mod_xlog)
cmd = Command(name='xlogdump standby last modifiled xlog',
cmdStr="xlogdump " + standby_last_mod_xlog)
cmd.run(validateAfter=True)
logger.info('See if we find the shutdown LSN in the XLOG seg file')
lines = (cmd.get_results()).stdout.splitlines()
flag = False
for line in range(0, len(lines) - 1):
if ((lines[line]).find(primary_last_ckpt_lsn) > -1):
self.assertTrue((lines[line]).find("checkpoint") > -1)
self.assertTrue((lines[line]).find("shutdown") > -1)
flag = True
break
self.assertTrue(flag)
logger.info('PASS')
# Re-start the database
logger.info('Now restart the DB (gpstart -a)')
cmd = Command(name="gpstop smart",
cmdStr="source %s/greenplum_path.sh;\
gpstart -a" % os.environ["GPHOME"])
cmd.run(validateAfter=True)
# Cleanup. Currently we dont have a clean way of WAL rcv dying
logger.info(
'Kill the standby processes as clean standby killing is not supported'
)
cmd = Command(
name="kill standby",
cmdStr=
"kill -9 `ps -ef | grep 5433 | grep -v grep | awk '{print $2}'`")
cmd.run(validateAfter=True)
