class OOMGpstartTestCase(MPPTestCase):
''' Simulating oom on standby master , gpstart fails to start standby'''
# Setup OOM env
oom.setup_oom()
def __init__(self, methodName):
self.gpinitstandby= GpinitStandby()
self.gputil = GpUtility()
super(OOMGpstartTestCase,self).__init__(methodName)
def setUp(self):
self.gpinitstandby.run(option='-r')
def tearDown(self):
self.gpinitstandby.run(option='-r')
def test_oom_with_gpstart(self):
# Create standby
oom.create_standby()
# Stop cluster
self.gputil.run('gpstop -a')
# Run gpstart after creaitng the flag file- Presence of this flag file will return NULL for malloc simulating a no memory scenario
oom.touch_malloc()
self.assertFalse(oom.startdb(), 'Standby start is expected to fail with no memory error')
# Restart after removing the flag file
self.assertTrue(oom.restartdb(), 'Expected a successful start of standby')
@unittest.skipIf(not config.is_multinode(), "Test applies only to a multinode cluster")
def test_oom_with_psql_con(self):
# Create standby
oom.create_standby()
# Stop cluster
self.gputil.run('gpstop -a')
# Run gpstart with wrapper
oom.startdb()
# OOM with psql- after adding the flag file to the standby directory to simulate OOM
self.assertTrue(oom.psql_and_oom())
# Start standby after free up memory
self.assertTrue(oom.start_standby())
class GpstopTestCase(MPPTestCase):
'''testcase for gpstart'''
origin_mdd = os.environ.get('MASTER_DATA_DIRECTORY')
def __init__(self,methodName):
self.gputil = GpUtility()
super(GpstopTestCase,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()
def tearDown(self):
self.gputil.remove_standby()
self.gputil.run('gpstart -a')
self.gputil.run('gprecoverseg -a')
def test_gpstop_from_master(self):
self.assertTrue(self.gputil.gpstop_and_verify())
self.gputil.run('gpstart -a')
def test_gpstop_master_only(self):
self.assertTrue(self.gputil.gpstop_and_verify(option = '-m'))
self.gputil.run('gpstart -a')
def test_gpstop_fast(self):
#run transactions, and stop fast, check if transaction aborted, and the cluster was stopped
self.assertTrue(self.gputil.gpstop_and_verify(option = '-M fast'))
self.gputil.run('gpstart -a')
def test_gpstop_immediate(self):
self.assertTrue(self.gputil.gpstop_and_verify(option = '-M immediate'))
self.gputil.run('gpstart -a')
def test_gpstop_smart(self):
self.assertTrue(self.gputil.gpstop_and_verify(option = '-M smart'))
self.gputil.run('gpstart -a')
def test_gpdb_restart(self):
self.assertTrue(self.gputil.gpstop_and_verify('-r'))
def test_gpdb_reload(self):
self.assertTrue(self.gputil.gpstop_and_verify('-u'))
def test_gpstop_except_stdby(self):
self.assertTrue(self.gputil.gpstop_and_verify('-y'))
self.gputil.run('gpstart -y')
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)
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)
class OOMClass(object):
'''Class for methods required for OOM testcase'''
standby_port = '5433'
standby_dirname = 'newstandby'
def __init__(self):
self.gpinit = GpinitStandby()
self.mdd = os.environ.get('MASTER_DATA_DIRECTORY')
self.config = GPDBConfig()
self.pgutil = GpUtility()
self.verify = StandbyVerify()
self.host = socket.gethostname()
self.standby_loc = os.path.join(os.path.split(self.mdd)[0],
self.standby_dirname)
self.standby = Standby(self.standby_loc, self.standby_port)
def create_standby(self):
self.pgutil.clean_dir(self.host,self.standby_loc)
self.gpinit.run(option = '-P %s -s %s -F pg_system:%s' % (self.standby_port, self.host, self.standby_loc))
def setup_oom(self):
# Build it before testing.
thisdir = os.path.dirname(__file__)
builddir = os.path.join(thisdir, 'lib')
subprocess.check_call(['make', '-C', builddir, 'install'])
#Copy oom_malloc.so and wrapper.sh to all the segment nodes
for host in config.get_hosts() :
if host.strip() == self.host :
continue
cmd = "gpssh -h %s -e 'mkdir -p %s'; scp %s/oom_malloc.so %s:%s/; scp %s/wrapper.sh %s:%s/" % (host.strip(), builddir, builddir, host.strip(), builddir, builddir, host.strip(), builddir)
self.pgutil.run(cmd)
def touch_malloc(self):
# Touch file oom_malloc in standby directory
cmd = 'touch %s/oom_malloc' % self.standby_loc
self.pgutil.run(cmd)
def startdb(self):
(rc, result) = self.pgutil.run('gpstart -a --wrapper %s' % (local_path('lib/wrapper.sh')))
if rc != 0 and 'Could not start standby master' in result :
return False
return True
def restartdb(self):
# Remove file oom_malloc from standby
cmd = 'rm %s/oom_malloc' % self.standby_loc
self.pgutil.run(cmd)
(rc, result) = self.pgutil.run('gpstop -ar')
if rc == 0 and (self.verify.check_pg_stat_replication()):
return True
return False
def psql_and_oom(self):
#Touch oom_malloc in standby_dir and issue PSQL : Check if processes are gone
self.touch_malloc()
PSQL.run_sql_command('Drop table if exists wal_oomt1;Create table wal_oomt1(a1 int, a2 text) with(appendonly=true);')
sleep(2)
if not (self.verify.check_standby_processes()):
return True
return False
def start_standby(self):
# Remove oom_malloc and start standby : Check if all processes are back
cmd = 'rm %s/oom_malloc' % self.standby_loc
self.pgutil.run(cmd)
res = self.standby.start()
sleep(2)
if (self.verify.check_standby_processes()) :
return True
return False
class WalReplKillProcessTestCase(TINCTestCase):
# this is not hard code, will be updated
stdby_host = 'localhost'
stdby_port = '5432'
def __init__(self,methodName):
self.gphome = os.environ.get('GPHOME')
self.pgport = os.environ.get('PGPORT')
self.pgdatabase = os.environ.get('PGDATABASE')
self.stdby_host = 'localhost'
self.master_dd = os.environ.get('MASTER_DATA_DIRECTORY')
self.pgutil = GpUtility()
self.stdby = StandbyVerify()
super(WalReplKillProcessTestCase,self).__init__(methodName)
def killProcess_byPid(self, signal=9, pid_toKill=[], host="localhost"):
pid_list = ""
for pid in pid_toKill:
pid_list = pid_list + " " + str(pid)
kill_cmd = "%s/bin/gpssh -h %s -e 'kill -%s %s'" % (os.environ.get('GPHOME'), host, signal, pid_list)
(rc, result) = self.pgutil.run(kill_cmd)
if rc == 0:
tinctest.logger.info("Process killed, %s" % result)
return True
else:
tinctest.logger.error("Killing process error, Status Code non zero, cmd: %s\n"%kill_cmd)
return False
def kill_walstartup(self):
gpstdby = GpinitStandby()
stdby_host = gpstdby.get_standbyhost()
activate_stdby = GpactivateStandby()
stdby_port = activate_stdby.get_standby_port()
pid_list = []
startup_pid = self.pgutil.get_pid_by_keyword(host=stdby_host, pgport=stdby_port, keyword="startup process")
if int(startup_pid) == -1:
tinctest.logger.error("error:startup process does not exist!")
return False
else:
pid_list.append(startup_pid)
self.killProcess_byPid(pid_toKill=pid_list, host=stdby_host)
def kill_walreceiver(self):
gpstdby = GpinitStandby()
stdby_host = gpstdby.get_standbyhost()
activate_stdby = GpactivateStandby()
stdby_port = activate_stdby.get_standby_port()
pid_list = []
walreceiver_pid = self.pgutil.get_pid_by_keyword(host=stdby_host, pgport=stdby_port, keyword="wal receiver process")
if int(walreceiver_pid) == -1:
tinctest.logger.error("error: wal receiver process does not exist!")
return False
else:
pid_list.append(walreceiver_pid)
self.killProcess_byPid(pid_toKill=pid_list, host=stdby_host)
def kill_walsender_check_postmaster_reset(self):
pid_list = []
walsender_old_pid=self.pgutil.get_pid_by_keyword(pgport=self.pgport,keyword="wal sender process")
if int(walsender_old_pid) == -1:
tinctest.logger.error("error: process wal sender does not exist on host")
return False
else:
pid_list.append(walsender_old_pid)
self.killProcess_byPid(pid_toKill=pid_list)
sleep(2)
walsender_new_pid=self.pgutil.get_pid_by_keyword(pgport=self.pgport,keyword="wal sender process")
if walsender_old_pid == walsender_new_pid:
raise Exception("Killing walsender failed to force postmaster reset")
else:
return True
def kill_transc_backend_check_reset(self):
dict_process = { 'stats collector process': -1, 'writer process': -1,
'checkpointer process': -1,'seqserver process': -1,
'ftsprobe process': -1,'sweeper process': -1,'wal sender process': -1}
for process in dict_process:
pid = self.pgutil.get_pid_by_keyword(pgport=self.pgport,keyword=process)
dict_process[process] = pid
self.kill_transc_backend()
for process in dict_process:
pid = self.pgutil.get_pid_by_keyword(pgport=self.pgport,keyword=process)
delay = 1
while dict_process.get(process) == pid and delay < 5:
pid = self.pgutil.get_pid_by_keyword(pgport=self.pgport,keyword=process)
sleep(1)
delay = delay +1
if delay == 5:
tinctest.logger.error("Killing transaction backend process failed to force postmaster reset: %s"%process)
raise Exception("Killing transaction backend process failed to force postmaster reset child process")
def kill_transc_backend(self):
pid_list = []
sql = "SELECT procpid FROM pg_stat_activity WHERE datname='{0}' AND current_query like 'INSERT INTO%'".format(self.pgdatabase)
tinctest.logger.info("running sql command to get transaction backend process: --- %s"%sql)
procid = PSQL.run_sql_command(sql, flags = '-q -t', dbname= self.pgdatabase)
count = 1
while not procid.strip() and count < 5:
sleep(1)
count += 1
procid = PSQL.run_sql_command(sql, flags = '-q -t', dbname= self.pgdatabase)
if procid.strip():
tinctest.logger.info("got procid to kill: %s " % procid)
pid_list.append(procid)
self.killProcess_byPid(pid_toKill = pid_list)
else:
tinctest.logger.error("There is no active backend process")
def check_stdby_stop(self):
gpstdby = GpinitStandby()
stdby_host = gpstdby.get_standbyhost()
activate_stdby = GpactivateStandby()
stdby_port = activate_stdby.get_standby_port()
master_pid = self.pgutil.get_pid_by_keyword(host=stdby_host, pgport=stdby_port, keyword="master", option = "bin")
if int(master_pid) != -1:
raise Exception("standby should stop but failed!")
def start_stdby(self):
gpstdby = GpinitStandby()
stdby_host = gpstdby.get_standbyhost()
stdby_dbid = self.get_standby_dbid()
activate_stdby = GpactivateStandby()
stdby_mdd = activate_stdby.get_standby_dd()
stdby_port = activate_stdby.get_standby_port()
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 &"%(stdby_mdd, stdby_port, stdby_dbid)
self.run_remote(stdby_host,cmd,stdby_port,stdby_mdd)
def run_remote(self, standbyhost, rmt_cmd, pgport = '', standbydd = ''):
'''Runs remote command and returns rc, result '''
export_cmd = "source %s/greenplum_path.sh;export PGPORT=%s;export MASTER_DATA_DIRECTORY=%s" % (self.gphome, pgport, standbydd)
remote_cmd = "gpssh -h %s -e \"%s; %s\"" % (standbyhost, export_cmd, rmt_cmd)
cmd = Command(name='Running Remote command', cmdStr='%s' % remote_cmd)
tinctest.logger.info(" %s" % cmd)
cmd.run(validateAfter=False)
result = cmd.get_results()
return result.rc,result.stdout
def check_mirror_seg(self):
dbstate = DbStateClass('run_validation')
dbstate.check_mirrorintegrity(master=True)
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 run_transaction_backend(self):
tinctest.logger.info("local path for backend.sql is %s"%local_path(''))
for file in os.listdir(local_path('')):
if fnmatch.fnmatch(file,'backend.sql'):
PSQL.run_sql_file(local_path(file))
def get_down_segment(self):
query = 'select * from gp_segment_configuration where mode <> \'s\' and status <>\'u\''
result = PSQL.run_sql_command(query, flags = '-q -t', dbname='template1')
return result.strip()
def check_gpdb_status(self):
down_segments = self.get_down_segment()
self.assertEqual(down_segments,'')
def gpstart_helper(self):
'''helper method to run in scenario test'''
(rc, result) = self.pgutil.run('gpstart -a')
self.assertIn(rc,(0,1))
def gpstop_helper(self):
'''helper method to run in scenario test'''
cmd = Command('run gpstop', cmdStr = 'gpstop -a')
cmd.run(validateAfter=True)
def gpinitstandby_helper(self):
'''helper method to create a new standby'''
self.pgutil.install_standby()
def removestandby_helper(self):
''' helper method to remove standby'''
self.pgutil.remove_standby()
def verify_standby_sync(self):
if (self.stdby.check_gp_segment_config()) and (self.stdby.check_pg_stat_replication()) and (self.stdby.check_standby_processes()):
return True
else:
raise Exception('standby and master out of sync!')
def kill_standby_postmaster(self):
pid_list = []
delay = 0
postmaster_pid = self.pgutil.get_pid_by_keyword(host=WalReplKillProcessTestCase.stdby_host, pgport=WalReplKillProcessTestCase.stdby_port, keyword="master", option="bin")
while int(postmaster_pid) == -1 and delay < 20:
sleep(1)
delay = delay + 1
postmaster_pid = self.pgutil.get_pid_by_keyword(host=WalReplKillProcessTestCase.stdby_host, pgport=WalReplKillProcessTestCase.stdby_port, keyword="master", option="bin")
if int(postmaster_pid) == -1 or delay == 20:
tinctest.logger.error("error: standby postmaster process does not exist!")
return False
else:
pid_list.append(postmaster_pid)
return self.killProcess_byPid(pid_toKill=pid_list, host=WalReplKillProcessTestCase.stdby_host)
def initial_setup(self):
keyword = 'rh55-qavm65'
config = GPDBConfig()
(seg_host,seg_port) = config.get_hostandport_of_segment(psegmentNumber = 0, pRole = 'p')
cur_path = local_path('')
dir1 = os.path.join(cur_path, 'dml', 'sql','insert_from_external.sql.in')
dir2 = os.path.join(cur_path, 'dml', 'sql','insert_from_external.sql')
dir3 = os.path.join(cur_path, 'dml', 'expected','insert_from_external.ans.in')
dir4 = os.path.join(cur_path, 'dml', 'expected','insert_from_external.ans')
f1 = open(dir1,'r')
f2 = open(dir2,'w')
f3 = open(dir3,'r')
f4 = open(dir4,'w')
for line in f1:
f2.write(line.replace(keyword,seg_host))
f1.close()
f2.close()
for line in f3:
f4.write(line.replace(keyword,seg_host))
f3.close()
f4.close()
dir5 = os.path.join(cur_path, 'dml', 'sql','insert_with_gpload.sql.in')
dir6 = os.path.join(cur_path, 'dml', 'sql','insert_with_gpload.sql')
yaml_path = local_path('dml/sql/config/gpl.yaml')
f5 = open(dir5,'r')
f6 = open(dir6,'w')
for line in f5:
f6.write(line.replace('gpl.yaml',yaml_path))
f5.close()
f6.close()
dir7 = os.path.join(cur_path,'dml','sql','config','gpl.yaml.in')
dir8 = os.path.join(cur_path,'dml','sql','config','gpl.yaml')
f7 = open(dir7,'r')
f8 = open(dir8,'w')
for line in f7:
if 'DATABASE' in line:
f8.write(line.replace('tangp3',os.environ.get('PGDATABASE')))
elif 'USER' in line:
f8.write(line.replace('tangp3',os.environ.get('USER')))
elif 'HOST' in line:
f8.write(line.replace('rh55-qavm61',socket.gethostname()))
elif 'PORT' in line and '5432' in line:
f8.write(line.replace('5432',os.environ.get('PGPORT')))
elif 'mydata' in line:
f8.write(line.replace('mydata',local_path('dml/sql/gpload/mydata')))
else:
f8.write(line)
f7.close()
f8.close()
dir9 = os.path.join(cur_path,'dml','expected','insert_with_gpload.ans.in')
dir10 = os.path.join(cur_path,'dml','expected','insert_with_gpload.ans')
f9 = open(dir9,'r')
f10 = open(dir10,'w')
for line in f9:
f10.write(line.replace('gpl.yaml',yaml_path))
f9.close()
f10.close()
dir11 = os.path.join(cur_path,'dml','sql','select_from_copy_table.sql.in')
dir12 = os.path.join(cur_path,'dml','sql','select_from_copy_table.sql')
f11 = open(dir11,'r')
f12 = open(dir12,'w')
for line in f11:
if 'tenk.data' in line:
f12.write(line.replace('tenk.data',local_path('dml/sql/_data/tenk.data')))
else:
f12.write(line)
f11.close()
f12.close()
dir13 = os.path.join(cur_path,'dml','expected','select_from_copy_table.ans.in')
dir14 = os.path.join(cur_path,'dml','expected','select_from_copy_table.ans')
f13 = open(dir13,'r')
f14 = open(dir14,'w')
for line in f13:
if 'tenk.data' in line:
f14.write(line.replace('tenk.data',local_path('dml/sql/_data/tenk.data')))
else:
f14.write(line)
f13.close()
f14.close()
external_table = local_path('dml/sql/_data/quote.csv')
clean_file = 'rm -rf /tmp/quote.csv'
rmt_cmd = "gpssh -h %s -e '%s' " % (seg_host, clean_file)
cmd = Command(name='Running a remote command', cmdStr = rmt_cmd)
cmd.run(validateAfter=False)
command = 'scp %s %s:/tmp'%(external_table,seg_host)
cmd = Command(name='run %s'%command, cmdStr = '%s' % command)
try:
cmd.run(validateAfter=True)
except Exception, e:
tinctest.logger.error("Error running command %s\n" % e)
class GpstartTestCase(MPPTestCase):
'''
testcase for gpstart
gpstart may return status code 1 as well as 0 in the success case. The
difference is whether it produces WARNING or not, but here we don't care.
'''
origin_mdd = os.environ.get('MASTER_DATA_DIRECTORY')
def __init__(self,methodName):
self.gputil = GpUtility()
self.stdby = StandbyVerify()
super(GpstartTestCase,self).__init__(methodName)
def setUp(self):
self.gputil.check_and_start_gpdb()
stdby_presence = self.gputil.check_standby_presence()
# We should forcibly recreate standby, as it might has been promoted.
if stdby_presence:
self.gputil.remove_standby()
self.gputil.install_standby()
def tearDown(self):
self.gputil.remove_standby()
"""
Gpstart test cases in recovery mode
"""
def test_gpstart_from_master(self):
"""
tag
"""
self.gputil.check_and_stop_gpdb()
(rc, stdout) = self.gputil.run('gpstart -a ')
self.assertIn(rc, (0, 1))
self.assertTrue(self.gputil.gpstart_and_verify())
sleep(2)
self.assertTrue(self.stdby.check_gp_segment_config(),'standby master not cofigured')
self.assertTrue(self.stdby.check_pg_stat_replication(),'standby not in replication status')
self.assertTrue(self.stdby.check_standby_processes(), 'standby processes not running')
(rc, output) = self.gputil.run(command = 'ps -ef|grep "wal sender "|grep -v grep')
self.assertIsNotNone(output)
def test_gpstart_master_only(self):
"""
tag
"""
self.gputil.check_and_stop_gpdb()
(rc, stdout) = self.gputil.run('export GPSTART_INTERNAL_MASTER_ONLY=1; '
'gpstart -a -m ')
self.assertIn(rc, (0, 1))
self.assertTrue(self.gputil.gpstart_and_verify())
(rc,output) = self.gputil.run('PGDATABASE=template1 '
"PGOPTIONS='-c gp_session_role=utility' "
'psql')
self.assertEqual(rc, 0)
(rc, output) = self.gputil.run('psql template1')
# should fail due to master only mode
self.assertEqual(rc, 2)
self.gputil.run('gpstop -a -m')
self.gputil.run('gpstart -a')
def test_gpstart_restricted_mode_master(self):
"""Test -R option with standby."""
self.gputil.check_and_stop_gpdb()
(rc, stdout) = self.gputil.run('gpstart -a -R')
self.assertIn(rc, (0, 1))
self.assertTrue(self.gputil.gpstart_and_verify())
(rc,output) = self.gputil.run(command = 'psql template1')
self.assertIn(rc, (0, 1))
self.gputil.run('gpstop -ar')
def test_gpstart_master_w_timeout(self):
"""Test -t option with standby."""
self.gputil.check_and_stop_gpdb()
(rc, output) = self.gputil.run('gpstart -a -t 30')
self.assertIn(rc, (0, 1))
self.assertTrue(self.gputil.gpstart_and_verify())
self.gputil.run('gpstop -ar')
def test_gpstart_no_standby(self):
"""Test -y with standby configured."""
self.gputil.check_and_stop_gpdb()
(rc, stdout) = self.gputil.run('gpstart -a -y')
self.assertIn(rc, (0, 1))
self.assertTrue(self.gputil.gpstart_and_verify())
self.assertFalse(self.stdby.check_standby_processes(),
'gpstart without standby failed, standby was running')
self.gputil.run('gpstop -ar')
def test_gpstart_wo_standby(self):
"""Test -y without standby configured."""
self.gputil.remove_standby()
self.gputil.check_and_stop_gpdb()
(rc, stdout) = self.gputil.run('gpstart -a -y')
self.assertIn(rc, (0, 1))
self.assertTrue(self.gputil.gpstart_and_verify())
self.assertFalse(self.stdby.check_standby_processes(), 'standby processes presented')
self.gputil.run('gpstop -ar')
"""
Gpstart, test case in failover mode
"""
def test_gpstart_master_only_after_failover(self):
"""
for test purpose, failing back to old master should
remove standby from primary after activate standby
"""
tinctest.logger.info("start master only with -m option after failover")
activatestdby = GpactivateStandby()
standby_host = activatestdby.get_current_standby()
standby_mdd = activatestdby.get_standby_dd()
standby_port = activatestdby.get_standby_port()
activatestdby.activate()
self.stdby._run_remote_command(standby_host,command = 'gpstop -a')
stdout = self.stdby._run_remote_command(standby_host,command = 'export GPSTART_INTERNAL_MASTER_ONLY=1; gpstart -a -m')
self.assertNotRegexpMatches(stdout,"ERROR","Start master only after failover failed")
self.assertTrue(self.gputil.gpstart_and_verify(master_dd = standby_mdd, host = standby_host))
self.stdby._run_remote_command(standby_host,command = 'gpstop -a -m')
self.gputil.run(command = 'gpstop -ar')
self.gputil.failback_to_original_master(self.origin_mdd, standby_host, standby_mdd, standby_port)
def test_gpstart_master_after_failover(self):
"""
failover, start from new master, then recover the cluster back to
have the old master active.
"""
tinctest.logger.info("failover, and run gpstart master test")
self.gputil.check_and_start_gpdb()
activatestdby = GpactivateStandby()
standby_host = activatestdby.get_current_standby()
standby_mdd = activatestdby.get_standby_dd()
standby_port = activatestdby.get_standby_port()
activatestdby.activate()
self.stdby._run_remote_command(standby_host, command = 'gpstop -a')
stdout = self.stdby._run_remote_command(standby_host,command = 'gpstart -a')
self.assertNotRegexpMatches(stdout,"FATAL","ERROR")
self.assertTrue(self.gputil.gpstart_and_verify(master_dd = standby_mdd, host = standby_host))
self.gputil.failback_to_original_master(self.origin_mdd, standby_host, standby_mdd, standby_port)
def test_gpstart_original_master_after_promote(self):
"""
failover, start from new master, then recover the cluster back to
have the old master active.
"""
tinctest.logger.info("activate and run gpstart for original master")
activatestdby = GpactivateStandby()
standby_host = activatestdby.get_current_standby()
standby_mdd = activatestdby.get_standby_dd()
standby_port = activatestdby.get_standby_port()
activatestdby.activate()
(rc, stdout) = self.gputil.run('gpstart -a -v')
self.gputil.run('pg_controldata %s' % self.origin_mdd)
self.stdby._run_remote_command(standby_host, command = 'pg_controldata %s' % standby_mdd)
self.assertNotEqual(rc, 0)
# This below error message comes from gpstart product code (if its modified change it here as well.)
self.assertRegexpMatches(stdout,"Standby activated, this node no more can act as master.")
self.gputil.failback_to_original_master(self.origin_mdd, standby_host, standby_mdd, standby_port)
class WalReplKillProcessTestCase(TINCTestCase):
# this is not hard code, will be updated
stdby_host = 'localhost'
stdby_port = '5432'
def __init__(self, methodName):
self.gphome = os.environ.get('GPHOME')
self.pgport = os.environ.get('PGPORT')
self.pgdatabase = os.environ.get('PGDATABASE')
self.stdby_host = 'localhost'
self.master_dd = os.environ.get('MASTER_DATA_DIRECTORY')
self.pgutil = GpUtility()
self.stdby = StandbyVerify()
super(WalReplKillProcessTestCase, self).__init__(methodName)
def killProcess_byPid(self, signal=9, pid_toKill=[], host="localhost"):
pid_list = ""
for pid in pid_toKill:
pid_list = pid_list + " " + str(pid)
kill_cmd = "%s/bin/gpssh -h %s -e 'kill -%s %s'" % (
os.environ.get('GPHOME'), host, signal, pid_list)
(rc, result) = self.pgutil.run(kill_cmd)
if rc == 0:
tinctest.logger.info("Process killed, %s" % result)
return True
else:
tinctest.logger.error(
"Killing process error, Status Code non zero, cmd: %s\n" %
kill_cmd)
return False
def kill_walstartup(self):
gpstdby = GpinitStandby()
stdby_host = gpstdby.get_standbyhost()
activate_stdby = GpactivateStandby()
stdby_port = activate_stdby.get_standby_port()
pid_list = []
startup_pid = self.pgutil.get_pid_by_keyword(host=stdby_host,
pgport=stdby_port,
keyword="startup process")
if int(startup_pid) == -1:
tinctest.logger.error("error:startup process does not exist!")
return False
else:
pid_list.append(startup_pid)
self.killProcess_byPid(pid_toKill=pid_list, host=stdby_host)
def kill_walreceiver(self):
gpstdby = GpinitStandby()
stdby_host = gpstdby.get_standbyhost()
activate_stdby = GpactivateStandby()
stdby_port = activate_stdby.get_standby_port()
pid_list = []
walreceiver_pid = self.pgutil.get_pid_by_keyword(
host=stdby_host, pgport=stdby_port, keyword="wal receiver process")
if int(walreceiver_pid) == -1:
tinctest.logger.error(
"error: wal receiver process does not exist!")
return False
else:
pid_list.append(walreceiver_pid)
self.killProcess_byPid(pid_toKill=pid_list, host=stdby_host)
def kill_walsender_check_postmaster_reset(self):
pid_list = []
walsender_old_pid = self.pgutil.get_pid_by_keyword(
pgport=self.pgport, keyword="wal sender process")
if int(walsender_old_pid) == -1:
tinctest.logger.error(
"error: process wal sender does not exist on host")
return False
else:
pid_list.append(walsender_old_pid)
self.killProcess_byPid(pid_toKill=pid_list)
sleep(2)
walsender_new_pid = self.pgutil.get_pid_by_keyword(
pgport=self.pgport, keyword="wal sender process")
if walsender_old_pid == walsender_new_pid:
raise Exception(
"Killing walsender failed to force postmaster reset")
else:
return True
def kill_transc_backend_check_reset(self):
dict_process = {
'stats collector process': -1,
'writer process': -1,
'checkpointer process': -1,
'seqserver process': -1,
'ftsprobe process': -1,
'sweeper process': -1,
'wal sender process': -1
}
for process in dict_process:
pid = self.pgutil.get_pid_by_keyword(pgport=self.pgport,
keyword=process)
dict_process[process] = pid
self.kill_transc_backend()
for process in dict_process:
pid = self.pgutil.get_pid_by_keyword(pgport=self.pgport,
keyword=process)
delay = 1
while dict_process.get(process) == pid and delay < 5:
pid = self.pgutil.get_pid_by_keyword(pgport=self.pgport,
keyword=process)
sleep(1)
delay = delay + 1
if delay == 5:
tinctest.logger.error(
"Killing transaction backend process failed to force postmaster reset: %s"
% process)
raise Exception(
"Killing transaction backend process failed to force postmaster reset child process"
)
def kill_transc_backend(self):
pid_list = []
sql = "SELECT procpid FROM pg_stat_activity WHERE datname='{0}' AND current_query like 'INSERT INTO%'".format(
self.pgdatabase)
tinctest.logger.info(
"running sql command to get transaction backend process: --- %s" %
sql)
procid = PSQL.run_sql_command(sql,
flags='-q -t',
dbname=self.pgdatabase)
count = 1
while not procid.strip() and count < 5:
sleep(1)
count += 1
procid = PSQL.run_sql_command(sql,
flags='-q -t',
dbname=self.pgdatabase)
if procid.strip():
tinctest.logger.info("got procid to kill: %s " % procid)
pid_list.append(procid)
self.killProcess_byPid(pid_toKill=pid_list)
else:
tinctest.logger.error("There is no active backend process")
def check_stdby_stop(self):
gpstdby = GpinitStandby()
stdby_host = gpstdby.get_standbyhost()
activate_stdby = GpactivateStandby()
stdby_port = activate_stdby.get_standby_port()
master_pid = self.pgutil.get_pid_by_keyword(host=stdby_host,
pgport=stdby_port,
keyword="master",
option="bin")
if int(master_pid) != -1:
raise Exception("standby should stop but failed!")
def start_stdby(self):
gpstdby = GpinitStandby()
stdby_host = gpstdby.get_standbyhost()
stdby_dbid = self.get_standby_dbid()
activate_stdby = GpactivateStandby()
stdby_mdd = activate_stdby.get_standby_dd()
stdby_port = activate_stdby.get_standby_port()
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 &" % (
stdby_mdd, stdby_port, stdby_dbid)
self.run_remote(stdby_host, cmd, stdby_port, stdby_mdd)
def run_remote(self, standbyhost, rmt_cmd, pgport='', standbydd=''):
'''Runs remote command and returns rc, result '''
export_cmd = "source %s/greenplum_path.sh;export PGPORT=%s;export MASTER_DATA_DIRECTORY=%s" % (
self.gphome, pgport, standbydd)
remote_cmd = "gpssh -h %s -e \"%s; %s\"" % (standbyhost, export_cmd,
rmt_cmd)
cmd = Command(name='Running Remote command', cmdStr='%s' % remote_cmd)
tinctest.logger.info(" %s" % cmd)
cmd.run(validateAfter=False)
result = cmd.get_results()
return result.rc, result.stdout
def check_mirror_seg(self):
dbstate = DbStateClass('run_validation')
dbstate.check_mirrorintegrity(master=True)
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 run_transaction_backend(self):
tinctest.logger.info("local path for backend.sql is %s" %
local_path(''))
for file in os.listdir(local_path('')):
if fnmatch.fnmatch(file, 'backend.sql'):
PSQL.run_sql_file(local_path(file))
def get_down_segment(self):
query = 'select * from gp_segment_configuration where mode <> \'s\' and status <>\'u\''
result = PSQL.run_sql_command(query, flags='-q -t', dbname='template1')
return result.strip()
def check_gpdb_status(self):
down_segments = self.get_down_segment()
self.assertEqual(down_segments, '')
def gpstart_helper(self):
'''helper method to run in scenario test'''
(rc, result) = self.pgutil.run('gpstart -a')
self.assertIn(rc, (0, 1))
def gpstop_helper(self):
'''helper method to run in scenario test'''
cmd = Command('run gpstop', cmdStr='gpstop -a')
cmd.run(validateAfter=True)
def gpinitstandby_helper(self):
'''helper method to create a new standby'''
self.pgutil.install_standby()
def removestandby_helper(self):
''' helper method to remove standby'''
self.pgutil.remove_standby()
def verify_standby_sync(self):
if (self.stdby.check_gp_segment_config()) and (
self.stdby.check_pg_stat_replication()) and (
self.stdby.check_standby_processes()):
return True
else:
raise Exception('standby and master out of sync!')
def kill_standby_postmaster(self):
pid_list = []
delay = 0
postmaster_pid = self.pgutil.get_pid_by_keyword(
host=WalReplKillProcessTestCase.stdby_host,
pgport=WalReplKillProcessTestCase.stdby_port,
keyword="master",
option="bin")
while int(postmaster_pid) == -1 and delay < 20:
sleep(1)
delay = delay + 1
postmaster_pid = self.pgutil.get_pid_by_keyword(
host=WalReplKillProcessTestCase.stdby_host,
pgport=WalReplKillProcessTestCase.stdby_port,
keyword="master",
option="bin")
if int(postmaster_pid) == -1 or delay == 20:
tinctest.logger.error(
"error: standby postmaster process does not exist!")
return False
else:
pid_list.append(postmaster_pid)
return self.killProcess_byPid(
pid_toKill=pid_list,
host=WalReplKillProcessTestCase.stdby_host)
def initial_setup(self):
keyword = 'rh55-qavm65'
config = GPDBConfig()
(seg_host,
seg_port) = config.get_hostandport_of_segment(psegmentNumber=0,
pRole='p')
cur_path = local_path('')
dir1 = os.path.join(cur_path, 'dml', 'sql',
'insert_from_external.sql.in')
dir2 = os.path.join(cur_path, 'dml', 'sql', 'insert_from_external.sql')
dir3 = os.path.join(cur_path, 'dml', 'expected',
'insert_from_external.ans.in')
dir4 = os.path.join(cur_path, 'dml', 'expected',
'insert_from_external.ans')
f1 = open(dir1, 'r')
f2 = open(dir2, 'w')
f3 = open(dir3, 'r')
f4 = open(dir4, 'w')
for line in f1:
f2.write(line.replace(keyword, seg_host))
f1.close()
f2.close()
for line in f3:
f4.write(line.replace(keyword, seg_host))
f3.close()
f4.close()
dir5 = os.path.join(cur_path, 'dml', 'sql',
'insert_with_gpload.sql.in')
dir6 = os.path.join(cur_path, 'dml', 'sql', 'insert_with_gpload.sql')
yaml_path = local_path('dml/sql/config/gpl.yaml')
f5 = open(dir5, 'r')
f6 = open(dir6, 'w')
for line in f5:
f6.write(line.replace('gpl.yaml', yaml_path))
f5.close()
f6.close()
dir7 = os.path.join(cur_path, 'dml', 'sql', 'config', 'gpl.yaml.in')
dir8 = os.path.join(cur_path, 'dml', 'sql', 'config', 'gpl.yaml')
f7 = open(dir7, 'r')
f8 = open(dir8, 'w')
for line in f7:
if 'DATABASE' in line:
f8.write(line.replace('tangp3', os.environ.get('PGDATABASE')))
elif 'USER' in line:
f8.write(line.replace('tangp3', os.environ.get('USER')))
elif 'HOST' in line:
f8.write(line.replace('rh55-qavm61', socket.gethostname()))
elif 'PORT' in line and '5432' in line:
f8.write(line.replace('5432', os.environ.get('PGPORT')))
elif 'mydata' in line:
f8.write(
line.replace('mydata',
local_path('dml/sql/gpload/mydata')))
else:
f8.write(line)
f7.close()
f8.close()
dir9 = os.path.join(cur_path, 'dml', 'expected',
'insert_with_gpload.ans.in')
dir10 = os.path.join(cur_path, 'dml', 'expected',
'insert_with_gpload.ans')
f9 = open(dir9, 'r')
f10 = open(dir10, 'w')
for line in f9:
f10.write(line.replace('gpl.yaml', yaml_path))
f9.close()
f10.close()
dir11 = os.path.join(cur_path, 'dml', 'sql',
'select_from_copy_table.sql.in')
dir12 = os.path.join(cur_path, 'dml', 'sql',
'select_from_copy_table.sql')
f11 = open(dir11, 'r')
f12 = open(dir12, 'w')
for line in f11:
if 'tenk.data' in line:
f12.write(
line.replace('tenk.data',
local_path('dml/sql/_data/tenk.data')))
else:
f12.write(line)
f11.close()
f12.close()
dir13 = os.path.join(cur_path, 'dml', 'expected',
'select_from_copy_table.ans.in')
dir14 = os.path.join(cur_path, 'dml', 'expected',
'select_from_copy_table.ans')
f13 = open(dir13, 'r')
f14 = open(dir14, 'w')
for line in f13:
if 'tenk.data' in line:
f14.write(
line.replace('tenk.data',
local_path('dml/sql/_data/tenk.data')))
else:
f14.write(line)
f13.close()
f14.close()
external_table = local_path('dml/sql/_data/quote.csv')
clean_file = 'rm -rf /tmp/quote.csv'
rmt_cmd = "gpssh -h %s -e '%s' " % (seg_host, clean_file)
cmd = Command(name='Running a remote command', cmdStr=rmt_cmd)
cmd.run(validateAfter=False)
command = 'scp %s %s:/tmp' % (external_table, seg_host)
cmd = Command(name='run %s' % command, cmdStr='%s' % command)
try:
cmd.run(validateAfter=True)
except Exception, e:
tinctest.logger.error("Error running command %s\n" % e)
class GpstopTestCase(MPPTestCase):
'''testcase for gpstart'''
origin_mdd = os.environ.get('MASTER_DATA_DIRECTORY')
def __init__(self,methodName):
self.gputil = GpUtility()
super(GpstopTestCase,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()
def tearDown(self):
self.gputil.remove_standby()
self.gputil.run('gpstart -a')
def test_gpstop_from_master(self):
self.assertTrue(self.gputil.gpstop_and_verify())
self.gputil.run('gpstart -a')
def test_gpstop_master_only(self):
self.assertTrue(self.gputil.gpstop_and_verify(option = '-m'))
self.gputil.run('gpstart -a')
def test_gpstop_fast(self):
#run transactions, and stop fast, check if transaction aborted, and the cluster was stopped
self.assertTrue(self.gputil.gpstop_and_verify(option = '-M fast'))
self.gputil.run('gpstart -a')
def test_gpstop_immediate(self):
self.assertTrue(self.gputil.gpstop_and_verify(option = '-M immediate'))
self.gputil.run('gpstart -a')
def test_gpstop_smart(self):
self.assertTrue(self.gputil.gpstop_and_verify(option = '-M smart'))
self.gputil.run('gpstart -a')
def test_gpdb_restart(self):
self.assertTrue(self.gputil.gpstop_and_verify('-r'))
def test_gpdb_reload(self):
self.assertTrue(self.gputil.gpstop_and_verify('-u'))
def test_gpstop_except_stdby(self):
self.assertTrue(self.gputil.gpstop_and_verify('-y'))
self.gputil.run('gpstart -y')
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)
class OOMClass(object):
'''Class for methods required for OOM testcase'''
standby_port = '5433'
standby_dirname = 'newstandby'
def __init__(self):
self.gpinit = GpinitStandby()
self.mdd = os.environ.get('MASTER_DATA_DIRECTORY')
self.config = GPDBConfig()
self.pgutil = GpUtility()
self.verify = StandbyVerify()
self.host = socket.gethostname()
self.standby_loc = os.path.join(
os.path.split(self.mdd)[0], self.standby_dirname)
self.standby = Standby(self.standby_loc, self.standby_port)
def create_standby(self):
self.pgutil.clean_dir(self.host, self.standby_loc)
self.gpinit.run(option='-P %s -s %s -F pg_system:%s' %
(self.standby_port, self.host, self.standby_loc))
def setup_oom(self):
# Build it before testing.
thisdir = os.path.dirname(__file__)
builddir = os.path.join(thisdir, 'lib')
subprocess.check_call(['make', '-C', builddir, 'install'])
#Copy oom_malloc.so and wrapper.sh to all the segment nodes
for host in config.get_hosts():
if host.strip() == self.host:
continue
cmd = "gpssh -h %s -e 'mkdir -p %s'; scp %s/oom_malloc.so %s:%s/; scp %s/wrapper.sh %s:%s/" % (
host.strip(), builddir, builddir, host.strip(), builddir,
builddir, host.strip(), builddir)
self.pgutil.run(cmd)
def touch_malloc(self):
# Touch file oom_malloc in standby directory
cmd = 'touch %s/oom_malloc' % self.standby_loc
self.pgutil.run(cmd)
def startdb(self):
(rc, result) = self.pgutil.run('gpstart -a --wrapper %s' %
(local_path('lib/wrapper.sh')))
if rc != 0 and 'Could not start standby master' in result:
return False
return True
def restartdb(self):
# Remove file oom_malloc from standby
cmd = 'rm %s/oom_malloc' % self.standby_loc
self.pgutil.run(cmd)
(rc, result) = self.pgutil.run('gpstop -ar')
if rc == 0 and (self.verify.check_pg_stat_replication()):
return True
return False
def psql_and_oom(self):
#Touch oom_malloc in standby_dir and issue PSQL : Check if processes are gone
self.touch_malloc()
PSQL.run_sql_command(
'Drop table if exists wal_oomt1;Create table wal_oomt1(a1 int, a2 text) with(appendonly=true);'
)
sleep(2)
if not (self.verify.check_standby_processes()):
return True
return False
def start_standby(self):
# Remove oom_malloc and start standby : Check if all processes are back
cmd = 'rm %s/oom_malloc' % self.standby_loc
self.pgutil.run(cmd)
res = self.standby.start()
sleep(2)
if (self.verify.check_standby_processes()):
return True
return False
