def possess(daemonizeTo=None):
fileutils.ensureDirExists(configure.logdir, "log file")
fileutils.ensureDirExists(configure.rundir, "run file")
if not daemonizeTo:
daemonizeTo = '/'
pid = process.getPid('transcoder-admin')
if pid:
if process.checkPidRunning(pid):
raise iherrors.SystemError(
'A flumotion-transcoder-admin is already running '
+ 'as pid %d' % pid)
else:
log.warning("flumotion-transcoder-admin should have been "
"running with pid %s. Restarting", str(pid))
process.deletePidFile('transcoder-admin')
logPath = os.path.join(configure.logdir, 'transcoder-admin.log')
# here we daemonize; so we also change our pid
if not daemonizeTo:
daemonizeTo = '/'
process.daemonize(stdout=logPath, stderr=logPath,
directory=daemonizeTo)
log.info('Started daemon')
# from now on I should keep running, whatever happens
log.debug('writing pid file')
process.writePidFile('transcoder-admin')
def notifyDebug(msg, info=None, debug=None, failure=None,
exception=None, documents=None):
"""
This function can be used from anywere to notify
debug information (like traceback) when no
Notifier reference is available.
Do not raise any exception.
"""
global _shutingDown
if _shutingDown: return
try:
sender = _debugSender
recipients = _debugRecipients
log.info("Try sending a debug notification to %s from %s",
recipients, sender,
category=adminconsts.NOTIFIER_LOG_CATEGORY)
body = _buildBody(sender, recipients, msg, msg, info, debug,
failure, exception, documents)
d = _postNotification(_smtpServer, _smtpPort, _smtpRequireTLS,
sender, recipients, body)
args = ("Debug",)
d.addCallbacks(_cbNotificationDone, _ebNotificationFailed,
callbackArgs=args, errbackArgs=args)
except Exception, e:
log.warning("Debug Notification Failed: %s",
log.getExceptionMessage(e),
category=adminconsts.NOTIFIER_LOG_CATEGORY)
def main(args):
log.setDefaultCategory(adminconsts.ADMIN_LOG_CATEGORY)
log.setDebugNotifier(notifier.notifyDebug)
options, configPath = parse_options(args)
loader = inifile.IniFile()
config = adminconfig.ClusterConfig()
try:
loader.loadFromFile(config, configPath)
except Exception, e:
sys.stderr.write('Error: %s\n' % e)
sys.exit(1)
debug = options.debug or config.debug
if debug:
log.setFluDebug(debug)
if options.daemonize:
possess(options.daemonizeTo)
a = admin.TranscoderAdmin(config)
utils.callNext(a.initialize)
reactor.run()
if options.daemonize:
exorcize()
log.info('Stopping transcoder-admin')
def _disableNotification():
global _shutingDown
_shutingDown = True
log.info("Disabling notifications during shutdown",
category=adminconsts.NOTIFIER_LOG_CATEGORY)
def _cbNotificationDone(result, kind):
log.info("%s notification sent", kind,
category=adminconsts.NOTIFIER_LOG_CATEGORY)
