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

eh, neither does the size check generate alerts either. I changed it to
size<1G to coerce it to fail as the file is around 20G

FILE %^/backup/*full*cmp* size<1G mtime<86400 track=fullDbDump

Click on the file as listed under 'files' gives the following:
[file:/backup/db_full.cmp_080406.101245]
type:100000 (file)
mode:644 (-rw-r-----)
linkcount:1
owner:506 (sql)
group:506 (dbas)
size:22155416434
clock:1154705700 (2006/08/04-11:35:00)
atime:1154702075 (2006/08/04-10:34:35)
ctime:1154701823 (2006/08/04-10:30:23)
mtime:1154701823 (2006/08/04-10:30:23)


On 8/4/06, Jerry Yu <user-764c1f364fe0@xymon.invalid> wrote:

Henrik,
I set it up per the steps above.  the correct files now show up under the
'files' column. however, no rrd of any files.*.rrd gets created under the
server:/var/lib/hobbit/DB09p/rrd. I do understand if the rrd name doesn't
use the track id under 4.2-RC-20060712, then it is not useful anyway.
FILE %^/backup/*trans*cp size<500M mtime<3600 track=transDbDump
FILE %^/backup/*full*dp size<50G track=fullDbDump

On 8/3/06, Jerry Yu <user-764c1f364fe0@xymon.invalid> wrote:

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 < user-ce4a2c883f75@xymon.invalid> 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