def __ensureStopped(self, gpEnv, directives):
"""
@param directives a list of the GpStopSegmentDirectoryDirective values indicating which segments to stop
"""
if len(directives) == 0:
return
self.__logger.info("Ensuring %d failed segment(s) are stopped" % (len(directives)))
segments = [d.getSegment() for d in directives]
segments = self._get_running_postgres_segments(segments)
segmentByHost = GpArray.getSegmentsByHostName(segments)
cmds = []
for hostName, segments in segmentByHost.iteritems():
cmd = gp.GpSegStopCmd("remote segment stop on host '%s'" % hostName,
gpEnv.getGpHome(), gpEnv.getGpVersion(),
mode='fast', dbs=segments, verbose=gplog.logging_is_verbose(),
ctxt=base.REMOTE, remoteHost=hostName)
cmds.append(cmd)
# we suppress checking for the error. This is because gpsegstop will actually error
# in many cases where the stop is actually done (that is, for example, the segment is
# running but slow to shutdown so gpsegstop errors after whacking it with a kill)
#
# Perhaps we should make it so that it so that is checks if the seg is running and only attempt stop
# if it's running? In that case, we could propagate the error
#
self.__runWaitAndCheckWorkerPoolForErrorsAndClear(cmds, "stopping segments", suppressErrorCheck=True)
def _stop_failed_segments(self, gpEnv):
failed_reachable_segments = self._get_failed_reachable_segments()
if len(failed_reachable_segments) == 0:
return
self.__logger.info("Ensuring %d failed segment(s) are stopped" %
(len(failed_reachable_segments)))
segments = self._get_running_postgres_segments(
failed_reachable_segments)
segmentByHost = GpArray.getSegmentsByHostName(segments)
cmds = []
for hostName, segments in segmentByHost.items():
cmd = gp.GpSegStopCmd("remote segment stop on host '%s'" %
hostName,
gpEnv.getGpHome(),
gpEnv.getGpVersion(),
mode='fast',
dbs=segments,
verbose=gplog.logging_is_verbose(),
ctxt=base.REMOTE,
remoteHost=hostName,
segment_batch_size=self.__parallelPerHost)
cmds.append(cmd)
# we suppress checking for the error. This is because gpsegstop will actually error
# in many cases where the stop is actually done (that is, for example, the segment is
# running but slow to shutdown so gpsegstop errors after whacking it with a kill)
#
# Perhaps we should make it so that it so that is checks if the seg is running and only attempt stop
# if it's running? In that case, we could propagate the error
#
self.__runWaitAndCheckWorkerPoolForErrorsAndClear(
cmds, suppressErrorCheck=True)
