Hi Matthew,

Do you have a target/planned throughput in mind(assuming other
resources are sized correctly) and need help to achieve that, or do
you just want to investigate what (in this case) lead to imptcp server
not keeping up?

On Thu, Nov 17, 2016 at 11:00 PM, matthew.gaetano
<[email protected]> wrote:
> Hello,
>
> I currently have an rsyslog server forwarding events via the "omfwd" module
> to an alternate rsyslog server which is listening using the "imptcp" module.
> The intent is to use the compression feature, though at present it is
> disabled for troubleshooting.
>
> These spikes come to the second rsyslog server but shortly there after we
> can see that the input on the impctp module fluctuation from 10k to 1million
> over the course of a minute or so. This continues until the primary syslog
> server start queuing to disk. The second rsyslog server, despite having its
> own queue, never fills or writes to disk.
>
> This suggests that the issue lies in the way the too systems are
> communicating within the tcp connection settings. Reading the documentation
> the imtcp module has something called FlowControl on by default. This is not
> the same for imptcp, though it does have "RateLimit.Interval" on. By default
> it is set to 0 disabling rate limiting.
>
> Is the parameter "RateLimit.Interval" in imptcp the equivlent to
> "FlowControl" in imtcp? if not is there a way to disable FlowControl in
> imptcp, or is there something else that could be causing back pressure on
> the first rsyslog server?
>
> Thanks
>
>
>
>
>
> -----
> ~Regards
>
> Matthew Gaetano
> --
> View this message in context: 
> http://rsyslog-users.1305293.n2.nabble.com/Disabling-IMPTCP-FlowControl-tp7591485.html
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-- 
Regards,
Janmejay
http://codehunk.wordpress.com
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