[hobbit] monitor a series of files for absolute size (alert & trending)

[Jerry Yu]

thanks for verifying, Henrik. I'll wait for 4.2 release to rebuild my RPMs.
Right now, I am still settling in with my first Hobbit installation. used to
work with bb-1.3/5/9.

On 8/3/06, Henrik Stoerner <henrik at hswn.dk> wrote:
>
> On Thu, Aug 03, 2006 at 09:04:23AM -0400, Jerry Yu wrote:
>
> > I need to monitor some os and db backup files for their sizes for alert
> > based on absolute sizes as well as rrd trending. Does Hobbit do this
> now? I
> > am running 4.2-RC-20060712 on CentOS 4.3/i386.
> >
> > A twist is the file names are timestamped (
> os-backup-YYYYMMDD-HHmm.star.gz).
> > any suggestions/tricks? I thought of making a copy to a fixed name for
> > monitoring, but it is kinda expensive due to the size of the backups
> > themselves.
>
> First thing is to get a "file:" entry in client-local.cfg to grab the
> data for the latest file. Something like:
>
>     file:`ls -t -1 /backup(os-backup-*.tar.gz|head -1`
>
> This runs the "ls -t...." command to determine the filename. Since it
> uses a time-sort and grabs only the first line, it should give you the
> name of the latest file.
>
> Next you want to track the size of it. In hobbit-clients.cfg
> define a FILE entry to track this - it needs to use a regex to match
> the filename, and an explicit RRD id to make it always use a specific
> RRD file. Perhaps you want to alert if they get bigger than 1 GB. So:
>
>     FILE %^/backup/os-backup.*.tar.gz SIZE<1G TRACK=osbackup
>
> Other interesting options for the FILE entry might be "MTIME<86400" to
> check that the latest backup file is at most 24 hours old.
>
> [10 minutes later]
>
> OK, I've learnt to test things before sending mails like this. The TRACK
> setting for files and directories currently ignores the ID you may pass
> to it, and uses the current filename when deciding on the RRD filename.
> So to use this, you'll need to grab either the current snapshot and
> build that, or the current "all-in-one" patch from
> http://www.hswn.dk/hobbitsw/betapatches/
>
>
> Regards,
> Henrik
>
>
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