> /Glenn, you may want to try using strace(1) on the syslogd process./

    Agree.  See where it's hung.

strace -p $PID_OF_STRACED

Also, I'd check the I/O of wherever it's saving logs to. If it's saving to a local disk, it may be getting ready to die. If it's saving to NFS or a remote log server, the LAN may be having issues (bad switch, cable, firewall, etc.)

--Derek

On 10/14/2010 11:42 AM, Mark Foster wrote:
On 10/14/2010 11:25 AM, Jesse Keating wrote:
On 10/14/2010 11:06 AM, Glenn Stone wrote:
You guys ever seen RHEL4's syslogd just hang inexplicably?  RHEL4.8, mysql
server, the only oddball thing is we've got a third-party app using syslog's
standard "local6" facility to log to a file on an OCFS filesystem.  A
bog-standard "service syslogd restart" restores functionality quickly and
without complaint or trace in the logs, just "restart successful"...
Clues?  Google-fu was less than useful...
-- Glenn
No clue, other than to disable the third-party app for a period of time
sufficient to place blame upon it if the freezing does not re-occur.
Not really helpful, I know.

Glenn, you may want to try using strace(1) on the syslogd process.
That often yields some valuable clue.


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