Adiscon does offer paid support contracts for old versions, but if upgrading to 8.11 si ging to take a long time, would it really be any faster or better to upgrade to a 5.8.10 derivitive that nobody else in the world is running?

Tracking down something like this is going to be time consuming, require capturing debug logs and network traffic during the period when the problem starts happening (hard to do with an intermittent problem)

you have to catch the beginning of the problem to figure out why the sending processes thinks that it shouldn't send the message (and yo probably need to do it on the recieving side as well)

It's unlikely that a simple config tweak will fix a problem like this.

David Lang

 On Fri, 3 Jul 2015, Prashant Batra wrote:

Date: Fri, 3 Jul 2015 19:45:49 +0530
From: Prashant Batra <[email protected]>
Reply-To: rsyslog-users <[email protected]>
To: rsyslog-users <[email protected]>
Subject: Re: [rsyslog] Message not being sent out from client to server

Thanks Rainer,

Jumping from 5.8.10 to 8.11.0 would take some time to adapt. Is there a way
this could be debugged and solved?

Prashant

On Fri, Jul 3, 2015 at 7:10 PM, Rainer Gerhards <[email protected]>
wrote:

As first measure, please update to the currently supported version
8.11.0. There are package repositories for major distros on the
rsyslog site. We had many changes in that area since 5.8 was current
and chances are good a simple upgrade will solve your issue.

Rainer

2015-07-03 14:34 GMT+02:00 Prashant Batra <[email protected]>:
Hi,

I have a rsyslog client and server running and configured to talk using
RELP.

Things work fine, but intermittently, I see the messages are not
delivered
to the server, a restart of rsyslogd on the client solves the problem.

rsyslog version on both client and server is 5.8.10
rsyslogd 5.8.10, compiled with:
        FEATURE_REGEXP:                         Yes
        FEATURE_LARGEFILE:                      No
        GSSAPI Kerberos 5 support:              Yes
        FEATURE_DEBUG (debug build, slow code): No
        32bit Atomic operations supported:      Yes
        64bit Atomic operations supported:      Yes
        Runtime Instrumentation (slow code):    No


During problematic time period, if I put strace on all the threads of
rsyslod, I observe, one of the threads read log message from /dev/log.
The
other thread which I suppose is responsible for sending it out to the
server reports a failure in one of the futex calls-

futex(0x7f94eb898240, FUTEX_WAKE_PRIVATE, 1) = 0
write(4, "INFO  2015/07/03 10:52:04.837 AN"..., 93) = 93
futex(0x7f94eb898e34, FUTEX_WAIT_PRIVATE, 31973, NULL) = 0
futex(0x7f94eb898240, FUTEX_WAKE_PRIVATE, 1) = 0
futex(0x7f94eb889f04, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME,
20781, {1435920724, 838367278}, ffffffff) = -1 ETIMEDOUT (Connection
timed out)
futex(0x7f94eb888ea0, FUTEX_WAKE_PRIVATE, 1) = 0
write(6, "WARN  2015/07/03 10:52:04.838 AN"..., 53) = 53


I wasnt able to find an exact bug on this problem already open on
rsyslog, but some related problem statements exist on the internet.

I am looking out for help to figure out what could the problem be,
what could be the cause, and how to fix it.

Regards,

Prashant
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