[syslog-ng] Syslog-ng Multiple Instances

[David Campeau]

Jim,

No errors as the instance starts normally and listens on port 518. However, no logs are received or forwarded. 

root at syslog-ng1:/usr/local/bin/syslog-ng-Second-Instance# netstat -an |grep 518
udp        0      0 0.0.0.0:518             0.0.0.0:*

The test device is on the same subnet as syslog-ng listening on port 518, so there aren't any firewall issues. I've verified the test device is configured for port 518.

However, when I check ctl stats, it's seeing the stats of the production syslog-ng instance.  So, it appears this is improperly configured, but it's unknown what needs to be changed.

Best Regards,


-----Original Message-----
From: jrhendri at roadrunner.com [mailto:jrhendri at roadrunner.com] 
Sent: Tuesday, June 28, 2016 12:53 PM
To: Syslog-ng users' and developers' mailing list
Cc: David Campeau
Subject: Re: [syslog-ng] Syslog-ng Multiple Instances

The only thing that would limit the number of instances that I am aware of are conflicts for opening things like network ports, connections to databases, maybe FIFOs, etc.

I would look at that as a place to start.

What kind of errors are you getting when you try to start the second instance?

Jim

---- David Campeau <David.Campeau at tn.gov> wrote: 
> Hello,
> 
> I've been using syslog-ng to filter syslog before forwarding on to a log collector. However, I need to spin up a second instance for testing purposes. I've found a little bit of information on-line, but it hasn't completed the entire picture.
> 
> This is the command used to start up the 2nd instance. I'm pointing to separate .conf .persist .pid and .ctl files -- However, it's still not working. I suspect the issue is due to OS log sources. How do a change log sources?
> 
> syslog-ng --cfgfile=/usr/local/bin/syslog-ng-Second-Instance/syslog-ng.conf --persist-file=/usr/local/bin/syslog-ng-Second-Instance/syslog-ng.persist --pidfile=/usr/local/bin/syslog-ng-Second-Instance/syslog-ng.pid --control=/usr/local/bin/syslog-ng-Second-Instance/syslog-ng.ctl &
> 
> This is the upper part of the syslog-ng.conf file for the 2nd instance I wish to run.
> 
> @version: 3.3.4
> @include "scl.conf"
>     options {
>         time-reap(30);
>         mark-freq(10);
>         keep-hostname(yes);
>         chain-hostnames(no);
>         use-dns(no);
> ##       log-fifo-size(500000);                ## Tuning Options
> ##      flush_lines(10000);                   ## Tuning Options
> ##       flush_timeout(10000);                ## Tuning Options
>     };
> 
>         source s_second_instance {
>         syslog(transport("udp") port("518"));       #### Will receive test syslog on port 518
>         };
> 
>     destination d_syslog_udp {
>         syslog("10.X.X.X"
>             transport("udp")
>             port("514")
>             throttle(4000)
>         );
>     };
> 
> 
> 
> I'm hoping someone has experience or has seen information on how to run a 2nd instance on the same box.
> 
> Best Regards,
> 
> David