[Bug 1169740] Re: rsyslog hangs loading modules

[Jon Tai]

Adam,

I installed the test package on a number of machines that exhibited the
deadlock before. They have been running OK for several hours. I also
wrote up a quick and dirty synthetic test that restarts rsyslog, logs a
unique test value, checks that it appears in the local logs, and does it
again unless the value did not appear. This has been running for several
hours as well. I will check back in later to see if there are any
failures.

- Jon

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https://bugs.launchpad.net/bugs/1169740

Title:
  rsyslog hangs loading modules

Status in “rsyslog” package in Ubuntu:
  Confirmed
Status in “rsyslog” source package in Precise:
  New
Status in “rsyslog” source package in Quantal:
  New
Status in “rsyslog” source package in Raring:
  Confirmed

Bug description:
  We have rsyslog configured to listen for forwarded logs on TCP and
  UDP, and to forward logs on to a central log host. On a number of
  occasions we have observed rsyslog in a hung state on our production
  machines -- not fowarding logs and not writing them to disk locally.
  It doesn't happen all the time, so I believe there's some sort of race
  condition involved.

  I've attached a stack trace taken when the process was hung. I believe
  the issue is the same as the one discussed here: http://www.gossamer-
  threads.com/lists/rsyslog/users/5873 There is a patch attached to that
  thread.

  Ubuntu 12.04.1 LTS x86_64
  rsyslog 5.8.6-1ubuntu8

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