On Thu, 23 Jul 2015, Brian Knox wrote:
From your diagram, it looks like you are trying to load balance RELP. As
far as I know, RELP does not suppot ActionTCPRebindInterval. I believe
this has been discussed on the mailing list:
http://lists.adiscon.net/pipermail/rsyslog/2013-May/032549.html
Unless something has changed, you need to use the omfwd module if you want
to use tcp rebinding. This isn't a bug - this is documented behavior.
The
rebind interval parameter is documented as a parameter for omfwd. RELP
uses omrelp, which has no such paramater. See:
http://www.rsyslog.com/doc/v8-stable/configuration/modules/omfwd.html and
http://www.rsyslog.com/doc/v8-stable/configuration/modules/omrelp.html
with the new style config it does in the current git branch. It looks like
it was added in 7.3.15
/* tables for interfacing with the v6 config system */
/* action (instance) parameters */
static struct cnfparamdescr actpdescr[] = {
{ "target", eCmdHdlrGetWord, 1 },
{ "tls", eCmdHdlrBinary, 0 },
{ "tls.compression", eCmdHdlrBinary, 0 },
{ "tls.prioritystring", eCmdHdlrString, 0 },
{ "tls.cacert", eCmdHdlrString, 0 },
{ "tls.mycert", eCmdHdlrString, 0 },
{ "tls.myprivkey", eCmdHdlrString, 0 },
{ "tls.authmode", eCmdHdlrString, 0 },
{ "tls.permittedpeer", eCmdHdlrArray, 0 },
{ "port", eCmdHdlrGetWord, 0 },
{ "rebindinterval", eCmdHdlrInt, 0 },
{ "windowsize", eCmdHdlrInt, 0 },
{ "timeout", eCmdHdlrInt, 0 },
{ "localclientip", eCmdHdlrGetWord, 0 },
{ "template", eCmdHdlrGetWord, 0 }
};
I use ActionTCPRebindInterval with haproxy with plain TCP. It works very
well.
Cheers,
Brian
On Thu, Jul 23, 2015 at 7:03 AM, <[email protected]> wrote:
With the architecture enclosed.
----- Mail original -----
De: [email protected]
À: "rsyslog-users" <[email protected]>
Envoyé: Jeudi 23 Juillet 2015 11:59:35
Objet: [rsyslog] Load balancing issue
Hello all,
I'm currently trying to load balance the log traffic accross several
servers.
I thought my configuration with "ActionSendTCPRebindInterval" option was
working properly, unfortunately my recent benchs show that the log flow
is
not well load balanced.
Please find below a part of the architecture :
My problem is located on the log aggregators : the rsyslog send its
traffic to haproxy on localhost using relp protocol.
I monitored the tcp sessions and i can see that haproxy doesn't change
the
destination servers.
watch 'ss -lap -o state established \( dport = :20514 \)'
Recv-Q Send-Q Local Address:Port Peer Address:Port
1716 0 127.0.0.1:43652 127.0.0.1:20514 users:(("rsyslogd",8409,88))
0 1138 10.17.252.4:58436 10.19.12.5:20514 timer:(on,196ms,0)
users:(("haproxy",3922
,2))
1760 0 127.0.0.1:43650 127.0.0.1:20514 users:(("rsyslogd",8409,22))
0 0 10.17.252.4:55583 10.19.12.6:20514 users:(("haproxy",3922,10))
Please find enclosed my configuration.
NB :
- the source pid (rsyslog) never change as it is expected with
"ActionSendTCPRebindInterval"
- i mixed legacy and new syntaxe because of the following bug
https://github.com/rsyslog/rsyslog/issues/96
This bug is annoying and i didn't receive any update since about 4 months
Could you please help me ?
OS : debian7
rsyslog version : 8.10
Regards ,
Smana
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