def _get_running_postgres_segments(self, segments):
running_segments = []
for seg in segments:
datadir = self.dereference_remote_symlink(
seg.getSegmentDataDirectory(), seg.getSegmentHostName())
pid = get_pid_from_remotehost(seg.getSegmentHostName(), datadir)
if pid is not None:
if check_pid_on_remotehost(pid, seg.getSegmentHostName()):
if is_pid_postmaster(datadir, pid,
seg.getSegmentHostName()):
running_segments.append(seg)
else:
logger.info(
"Skipping to stop segment %s on host %s since it is not a postgres process"
% (seg.getSegmentDataDirectory(),
seg.getSegmentHostName()))
else:
logger.debug(
"Skipping to stop segment %s on host %s since process with pid %s is not running"
% (seg.getSegmentDataDirectory(),
seg.getSegmentHostName(), pid))
else:
logger.debug(
"Skipping to stop segment %s on host %s since pid could not be found"
%
(seg.getSegmentDataDirectory(), seg.getSegmentHostName()))
return running_segments
def _get_running_postgres_segments(self, segments):
running_segments = []
for seg in segments:
datadir = self.dereference_remote_symlink(seg.getSegmentDataDirectory(), seg.getSegmentHostName())
pid = get_pid_from_remotehost(seg.getSegmentHostName(), datadir)
if pid is not None:
if check_pid_on_remotehost(pid, seg.getSegmentHostName()):
if is_pid_postmaster(datadir, pid, seg.getSegmentHostName()):
running_segments.append(seg)
else:
logger.info("Skipping to stop segment %s on host %s since it is not a postgres process" % (seg.getSegmentDataDirectory(), seg.getSegmentHostName()))
else:
logger.debug("Skipping to stop segment %s on host %s since process with pid %s is not running" % (seg.getSegmentDataDirectory(), seg.getSegmentHostName(), pid))
else:
logger.debug("Skipping to stop segment %s on host %s since pid could not be found" % (seg.getSegmentDataDirectory(), seg.getSegmentHostName()))
return running_segments
def test_is_pid_postmaster_pid_doesnt_exists_remote(self, mock1, mock2):
pid = 1234
datadir = '/data/primary/gpseg0'
remoteHost = 'smdw'
self.assertFalse(is_pid_postmaster(datadir, pid, remoteHost=remoteHost))
def test_is_pid_postmaster_pgrep_failed(self, mock1, mock2):
pid = '1234'
datadir = '/data/primary/gpseg0'
self.assertTrue(is_pid_postmaster(datadir, pid))
def test_is_pid_postmaster_no_result(self, mock1, mock2):
pid = '1234'
datadir = None
self.assertFalse(is_pid_postmaster(datadir, pid))
def test_is_pid_postmaster_pid_doesnt_exists(self, mock1, mock2):
pid = 1234
datadir = '/data/primary/gpseg0'
self.assertFalse(is_pid_postmaster(datadir, pid))
def test_is_pid_postmaster_pgrep_failed_remote(self, mock1, mock2):
pid = '1234'
datadir = '/data/primary/gpseg0'
remoteHost = 'smdw'
self.assertTrue(is_pid_postmaster(datadir, pid, remoteHost=remoteHost))
def test_is_pid_postmaster_no_result_remote(self, mock1, mock2):
pid = '1234'
datadir = None
remoteHost = 'smdw'
self.assertFalse(is_pid_postmaster(datadir, pid, remoteHost=remoteHost))
