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control: log remaining threads on shutdown, for debugging freezes

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This commit is contained in:
James Lu 2016-12-16 19:42:12 -08:00
parent 95b58fc2c4
commit e7a005b685
1 changed files with 5 additions and 0 deletions
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5
coremods/control.py
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@ -3,6 +3,7 @@ control.py - Implements SHUTDOWN and REHASH functionality.
""" """
import signal import signal
import os import os
import threading
from pylinkirc import world, utils, conf, classes from pylinkirc import world, utils, conf, classes
from pylinkirc.log import log, makeFileLogger, stopFileLoggers from pylinkirc.log import log, makeFileLogger, stopFileLoggers
@ -40,6 +41,10 @@ def _shutdown(irc=None):
except OSError: except OSError:
log.exception("Failed to remove PID, ignoring...") log.exception("Failed to remove PID, ignoring...")
log.info("Waiting for remaining threads to stop; this may take a few seconds. If PyLink freezes "
"at this stage, press Ctrl-C to force a shutdown.")
log.debug('_shutdown(): Remaining threads: %s', ['%s/%s' % (t.name, t.ident) for t in threading.enumerate()])
# Done. # Done.
def sigterm_handler(signo, stack_frame): def sigterm_handler(signo, stack_frame):