def __startSegments(self):
"""
Start the segments themselves
"""
self.logger.info("Starting segments... (mirroringMode %s)" %
self.mirroringMode)
for datadir, seg in self.overall_status.dirmap.items():
if self.master_checksum_version != None:
cmd = PgControlData(name='run pg_controldata', datadir=datadir)
cmd.run(validateAfter=True)
res = cmd.get_results()
if res.rc != 0:
msg = "pg_controldata failed.\nstdout:%s\nstderr:%s\n" % (
res.stdout, res.stderr)
reasoncode = gp.SEGSTART_ERROR_PG_CONTROLDATA_FAILED
self.overall_status.mark_failed(datadir, msg, reasoncode)
continue
segment_heap_checksum_version = cmd.get_value(
'Data page checksum version')
if segment_heap_checksum_version != self.master_checksum_version:
msg = "Segment checksum %s does not match master checksum %s.\n" % (
segment_heap_checksum_version,
self.master_checksum_version)
reasoncode = gp.SEGSTART_ERROR_CHECKSUM_MISMATCH
self.overall_status.mark_failed(datadir, msg, reasoncode)
continue
cmd = gp.SegmentStart("Starting seg at dir %s" % datadir,
seg,
self.num_cids,
self.era,
self.mirroringMode,
self.master_checksum_version,
timeout=self.timeout,
specialMode=self.specialMode,
wrapper=self.wrapper,
wrapper_args=self.wrapper_args)
self.pool.addCommand(cmd)
self.pool.join()
for cmd in self.pool.getCompletedItems():
res = cmd.get_results()
if res.rc != 0:
# we should also read in last entries in startup.log here
datadir = cmd.segment.getSegmentDataDirectory()
msg = "PG_CTL failed.\nstdout:%s\nstderr:%s\n" % (res.stdout,
res.stderr)
reasoncode = gp.SEGSTART_ERROR_PG_CTL_FAILED
self.overall_status.mark_failed(datadir, msg, reasoncode)
self.pool.empty_completed_items()
def get_master_value(self):
"""
can raise
:return: the heap checksum setting (1 or 0) for the master
"""
master_gpdb = self.gparray.master
cmd = PgControlData(name='run pg_controldata', datadir=master_gpdb.getSegmentDataDirectory())
cmd.run(validateAfter=True)
value = cmd.get_value('Data page checksum version')
return value
def get_coordinator_value(self):
"""
can raise
:return: the heap checksum setting (1 or 0) for the coordinator
"""
coordinator_gpdb = self.gparray.coordinator
cmd = PgControlData(name='run pg_controldata',
datadir=coordinator_gpdb.getSegmentDataDirectory())
cmd.run(validateAfter=True)
value = cmd.get_value('Data page checksum version')
return value
def get_standby_value(self):
"""
can raise
:return: the heap checksum setting (1 or 0) for the standby master
"""
standbyMaster_gpdb = self.gparray.standbyMaster
cmd = PgControlData(name='run pg_controldata', datadir=standbyMaster_gpdb.getSegmentDataDirectory(),
ctxt=REMOTE, remoteHost=standbyMaster_gpdb.getSegmentHostName())
cmd.run(validateAfter=True)
value = cmd.get_value('Data page checksum version')
return value
def __startSegments(self):
"""
Start the segments themselves
"""
self.logger.info("Starting segments... (mirroringMode %s)" % self.mirroringMode)
for datadir, seg in self.overall_status.dirmap.items():
if self.master_checksum_version != None:
cmd = PgControlData(name='run pg_controldata', datadir=datadir)
cmd.run(validateAfter=True)
res = cmd.get_results()
if res.rc != 0:
msg = "pg_controldata failed.\nstdout:%s\nstderr:%s\n" % (res.stdout, res.stderr)
reasoncode = gp.SEGSTART_ERROR_PG_CONTROLDATA_FAILED
self.overall_status.mark_failed(datadir, msg, reasoncode)
continue
segment_heap_checksum_version = cmd.get_value('Data page checksum version')
if segment_heap_checksum_version != self.master_checksum_version:
msg = "Segment checksum %s does not match master checksum %s.\n" % (segment_heap_checksum_version,
self.master_checksum_version)
reasoncode = gp.SEGSTART_ERROR_CHECKSUM_MISMATCH
self.overall_status.mark_failed(datadir, msg, reasoncode)
continue
cmd = gp.SegmentStart("Starting seg at dir %s" % datadir,
seg,
self.num_cids,
self.era,
self.mirroringMode,
self.master_checksum_version,
timeout=self.timeout,
specialMode=self.specialMode,
wrapper=self.wrapper,
wrapper_args=self.wrapper_args)
self.pool.addCommand(cmd)
self.pool.join()
for cmd in self.pool.getCompletedItems():
res = cmd.get_results()
if res.rc != 0:
# we should also read in last entries in startup.log here
datadir = cmd.segment.getSegmentDataDirectory()
msg = "PG_CTL failed.\nstdout:%s\nstderr:%s\n" % (res.stdout, res.stderr)
reasoncode = gp.SEGSTART_ERROR_PG_CTL_FAILED
self.overall_status.mark_failed(datadir, msg, reasoncode)
self.pool.empty_completed_items()
def get_standby_value(self):
"""
can raise
:return: the heap checksum setting (1 or 0) for the standby coordinator
"""
standbyCoordinator_gpdb = self.gparray.standbyCoordinator
cmd = PgControlData(
name='run pg_controldata',
datadir=standbyCoordinator_gpdb.getSegmentDataDirectory(),
ctxt=REMOTE,
remoteHost=standbyCoordinator_gpdb.getSegmentHostName())
cmd.run(validateAfter=True)
value = cmd.get_value('Data page checksum version')
return value