IMHO, for high-load TCP, rebindinterval is counter-productive, because
you need to establish a new connection each time. But yes, this
parameter exists.
Load balancing is very dependent on nature of your load, on your
bottlenecks, and so on. Why do you want to balance TCP connections?
--
Pavel Levshin
23.10.2013 23:26, Erik Steffl:
What are recommendations for use of rsyslog with loadbalancers? We
have setup where number of machines run rsyslog and forward syslog
messages to central location using RELP protocol (using omrelp module).
The central location is a load balancer with cluster of machines
behind it (that run rsyslog and use imrelp).
I assume this is not an uncommon scenario so hoping that there is a
way to do this in a way that does load balancing.
The problem is that TCP connection stays open for a long time so there
is effectively no load balancing done. Looking for a solution I found
http://www.rsyslog.com/load-balancing-for-rsyslog/ which mentions
RebindInterval which is documented in omfwd docs
http://www.rsyslog.com/doc/omfwd.html
However I don't see RebindInterval in omrelp docs
http://www.rsyslog.com/doc/omrelp.html and when I try to use it
rsyslog segfaults (in relpCltHintBurstEnd in librelp.so.0, also sent
email specifically about that).
Should RebindInterval work for omrelp? Or is there some other way to
re-open TCP connection so that load balancing works?
Thanks!
erik
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