[openstack-dev] A Tool for Making OpenStack Log Reading a Bit Easier

Sean Dague sean at dague.net
Wed Nov 6 22:31:12 UTC 2013

First, very cool tool, nice work!

I wonder if it's reasonable (or interesting) to take these approaches
and bring them into os-loganalyze. That would mean there was common
parsing routines, and then we would just call out to different
functions if were were trying to do HTML or ANSI coloring. I
personally live so often off the weblogs that I honestly hadn't
thought about the local case, which would be definitely interesting.
It would also be really great if adding semantics to one use did it
for the other as well, so people would see the same output when they
were looking at test failures as when they were doing local

If you are interested in trying to join efforts there, let me know.

On Wed, Nov 6, 2013 at 9:36 AM, Joe Gordon <joe.gordon0 at gmail.com> wrote:
> On Wed, Nov 6, 2013 at 9:10 AM, Clint Byrum <clint at fewbar.com> wrote:
>> I often use ccze to look at logs. It has some built in things like
>> coloring the words "warn" or "warning" yellow and "error" red. It would
>> be great to have this filter added as another ccze plugin.
> Sean Dague, wrote a really slick tool for logs.openstack.org that is
> similar:
> http://git.openstack.org/cgit/openstack-infra/os-loganalyze/tree/README.rst
> http://logs.openstack.org/98/54198/7/check/check-tempest-devstack-vm-neutron/a153156/logs/screen-q-svc.txt.gz?level=TRACE
>> Excerpts from Solly Ross's message of 2013-11-06 05:58:02 +0800:
>> > Hello All,
>> > The other day, I was reading through a debug-level OpenStack log, and
>> > came to the realization that reading OpenStack debug-level logs was
>> > difficult, to say the least -- they can be very busy, and it is hard to
>> > quickly filter out relevant information.  Thus, I wrote a little Perl script
>> > to make reading dense debug-level logs a bit easier:
>> > https://github.com/DirectXMan12/os_log_prettifier.  I figured that I'd share
>> > it with other people.  Basically, the script highlights certain key details
>> > using color and bolding (via ANSI control codes), and can filter lines based
>> > on subject (in the form of 'x.y.z') or message type, using regular
>> > expressions.  I hope people find it useful!
>> >
>> > Best Regards,
>> > Solly Ross
>> >
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Sean Dague

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