def emitEvents(self):
self.harvestErrors()
if not self._events or self._emitPid:
return
if ((time.time() - self._lastEmit) < self._emitEventTimeThreshold
and self._numEvents < self._emitEventSizeThreshold):
return
events = self._events
self._events = {}
self.reader, writer = pipereader.makeMarshalPipes()
pid = self._fork('emitEvents')
if pid:
writer.close()
self._numEvents = 0
self._lastEmit = time.time()
self._emitPid = pid
#self.debug('_emitEvents forked pid %d' % pid)
return
self.reader.close()
try:
try:
for jobId, eventList in events.iteritems():
self.db.reopen()
self._emitEvents(jobId, eventList, writer)
os._exit(0)
except Exception, err:
self.logger.error('Emit Events failed: %s\n%s', err,
traceback.format_exc())
os._exit(1)
finally:
os._exit(1)
def emitEvents(self):
self.harvestErrors()
if not self._events or self._emitPid:
return
if ((time.time() - self._lastEmit) < self._emitEventTimeThreshold
and self._numEvents < self._emitEventSizeThreshold):
return
events = self._events
self._events = {}
self.reader, writer = pipereader.makeMarshalPipes()
pid = self._fork('emitEvents')
if pid:
writer.close()
self._numEvents = 0
self._lastEmit = time.time()
self._emitPid = pid
#self.debug('_emitEvents forked pid %d' % pid)
return
self.reader.close()
try:
try:
for jobId, eventList in events.iteritems():
self.db.reopen()
self._emitEvents(jobId, eventList, writer)
os._exit(0)
except Exception, err:
self.logger.error('Emit Events failed: %s\n%s', err,
traceback.format_exc())
os._exit(1)
finally:
os._exit(1)
def runCommand(self, commandClass, cfg, commandId, *args):
"""
Start the given command by instantiating the given class.
Returns the command object that was created unless there
was an error instantiating the command object, in which
case None is returned.
The function may also return False, which means that the
command could not be run at this time (but did not error)
If the command is forked, then the command object is appended
the the list of running commands.
"""
command = None
try:
# errors before this point imply a problem w/ the node.
# Below this point it is a problem w/ the command.
command = commandClass(cfg, commandId, *args)
if not command.isReady():
return False
if command.shouldFork():
inF, outF = pipereader.makeMarshalPipes()
pid = self._fork('Command %s' % command.getCommandId())
if not pid:
try:
self._resetSignalHandlers()
inF.close()
command.setWritePipe(outF)
command.runCommandAndExit()
finally:
os._exit(1)
else:
command.pid = pid
outF.close()
command.setReadPipe(inF)
self.commands.append(command)
else:
command.runCommandNoExit()
self.commandCompleted(command.getCommandId())
except Exception, err:
self.error(
'Command %s got exception: %s: %s' % (commandId, err.__class__.__name__, err))
tb = traceback.format_exc()
self.commandErrored(commandId, str(err), tb)
if command:
command.commandErrored(str(err), tb)
def runCommand(self, commandClass, cfg, commandId, *args):
"""
Start the given command by instantiating the given class.
Returns the command object that was created unless there
was an error instantiating the command object, in which
case None is returned.
The function may also return False, which means that the
command could not be run at this time (but did not error)
If the command is forked, then the command object is appended
the the list of running commands.
"""
command = None
try:
# errors before this point imply a problem w/ the node.
# Below this point it is a problem w/ the command.
command = commandClass(cfg, commandId, *args)
if not command.isReady():
return False
if command.shouldFork():
inF, outF = pipereader.makeMarshalPipes()
pid = self._fork('Command %s' % command.getCommandId())
if not pid:
try:
self._resetSignalHandlers()
inF.close()
command.setWritePipe(outF)
command.runCommandAndExit()
finally:
os._exit(1)
else:
command.pid = pid
outF.close()
command.setReadPipe(inF)
self.commands.append(command)
else:
command.runCommandNoExit()
self.commandCompleted(command.getCommandId())
except Exception, err:
self.error('Command %s got exception: %s: %s' %
(commandId, err.__class__.__name__, err))
tb = traceback.format_exc()
self.commandErrored(commandId, str(err), tb)
if command:
command.commandErrored(str(err), tb)
