[Gluster-users] [Gluster-devel] new glusterfs logging framework

[Niels de Vos]

On Thu, Aug 08, 2013 at 04:44:01AM -0400, Balamurugan Arumugam wrote:
> 
> 
> ----- Original Message -----
> > From: "Niels de Vos" <ndevos at redhat.com>
> > To: "Balamurugan Arumugam" <bala at gluster.com>
> > Cc: gluster-devel at nongnu.org, gluster-users at gluster.org
> > Sent: Tuesday, August 6, 2013 8:48:58 PM
> > Subject: Re: [Gluster-devel] new glusterfs logging framework
> > 
> > On Tue, Jul 30, 2013 at 05:29:43AM -0400, Balamurugan Arumugam wrote:
> > > 
> > > Hi All,
> > > 
> > > Recently new logging framework was introduced [1][2][3] in glusterfs
> > > master branch.  You could read more about this on doc/logging.txt.  In
> > > brief, current log target is moved to syslog and user has an option to
> > > this new logging at compile time (passing '--disable-syslog' to
> > > ./configure or '--without syslog' to rpmbuild) and run time (having
> > > a file /var/log/glusterd/logger.conf and restarting gluster services).
> > > 
> > > As rsyslog is used as syslog server in Fedora and CentOS/RHEL and
> > > default configuration of rsyslog does not have any rule specific to
> > > gluster logs, you see all logs are in /var/log/messages in JSON
> > > format.
> > 
> > As the below does not function on RHEL-6 with its own rsyslog (no
> > rsyslog-mmjsonparse available), I am creating an empty
> > /var/lib/glusterd/logger.conf which (after a restart) makes glusterd and
> > friends to log to their standard files again.
> > 
> > Do you have some progress on the rsyslog-mmjsonparse for rhel5 and
> > rhel6?
> > 
> 
> mmcount is a rsyslog plugin (developed by me) available rsyslog 
> upstream which tracks each gluster log using error codes.  The error 
> code is the entity enabled by gluster logging framework.  This module 
> is back ported to rhel6 which does tracking and json parsing.  I am in 
> the process of submitting this to rhel 6 downstream.  I haven't tried 
> rhel5 yet and I will do that too.

Very cool!

> > Also, it would really be nice to include that
> > /etc/rsyslog.d/gluster.conf in the rpms and add a dependency on the
> > rsyslog-mmjsonparse package. Or, provide a /var/lib/glusterd/logger.conf
> > for the distributions that do not have rsyslog-mmjsonparse.
> > 
> 
> Yes.  I had similar thought on this to do so.  I will send the fix soon.

Great, thanks. Also, consider to move the file to /etc/glusterd where 
all configuration files that sysadmins may edit are kept.

Niels