xCAT/confluent
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Add facility to dump trace to log

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If confluent gets stuck, provide a debug facility
to sample where it is stuck.  Sending confluent
SIGUSR1 will now cause /var/log/confluent/hangtraces
to get written to.
This commit is contained in:
Jarrod Johnson 2015-10-28 10:16:39 -04:00
parent 5485ef36bf
commit f02c74cce0
1 changed files with 8 additions and 0 deletions
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8
confluent_server/confluent/main.py
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@ -50,6 +50,8 @@ except ImportError:
import sys
import os
import signal
import time
import traceback
def _daemonize():
@ -119,6 +121,11 @@ def _checkpidfile():
def terminate(signalname, frame):
sys.exit(0)
def dumptrace(signalname, frame):
ht = open('/var/log/confluent/hangtraces', 'a')
ht.write('Dumping active trace on ' + time.strftime('%X %x\n'))
ht.write(''.join(traceback.format_stack(frame)))
ht.close()
def doexit():
if not havefcntl:
@ -138,6 +145,7 @@ def _initsecurity(config):
def run():
signal.signal(signal.SIGUSR1, dumptrace)
if havefcntl:
_checkpidfile()
conf.init_config()