Henrik,
Is there a facility already in place, or a way to graph the number of "hits" returned by a pattern match for a log file?
For instance:
I am checking xyz log file for the word "wrap" It would be *very* useful to have a graph that shows the number of times that word showed up between the previous check and the current check.
This could be very useful to illustrate, say, a disk dying (one blip of a bad read or something would be one thing, but looking at a graph over time that shows 1 blip one week, 10 the next, and 20 the week after that would indicate the disk was almost dead) etc...
Right now, the only way I have to do this is with a client side script that runs in a constant loop:
while true; do
NUM=grep "Buffer wrapped" /quotes/env/errlog | wc -l | sed 's/ *//g'
if [ $NUM -gt $INITIALNUM ] ; then
WRAP_NUM=expr $NUM - $INITIALNUM
$BB $BBDISP "status $MACHINE.wraps green date
echo "wraps:$WRAP_NUM"
"
INITIALNUM=$NUM
else
OKNUM=0
$BB $BBDISP "status $MACHINE.wraps green date
echo "wraps:$OKNUM"
"
fi
-Jeff
On 5/28/06, Henrik Stoerner <henrik at hswn.dk> wrote:
On Sun, May 21, 2006 at 07:29:49PM +0200, Olivier Beau wrote:
well.. i was glad to find OS log files definitions in client-local.cfg Could there be basic OS pattern definitions in hobbit-client.cfg's DEFAULT ?
You'll have to contribute some, then. I don't really know what people are looking for in their logfiles.
next step: application log monitoring let's say i have 100 servers (differents OS of course) running mysql, and i want to follow "ended" in /var/log/mysqld.log ->setting up 100 entries in client-local.cfg doesn't seem great, could there be some kind of grouping in client-local.cfg (PAGE actually..) ? (i guess this would required to processing client-local.cfg before transferring to the clients..)
Welcome to the world of configuration "classes".
Step 1: Put a "CLASS:mysqlservers" on those hosts in bb-hosts. Step 2: Put a section in your client-local.cfg file with [mysqlservers] logfile:/var/log/mysql/status.log Step 3: Configure hobbit-clients.cfg for these logfiles.
Only problem is that you'll need todays snapshot for this to work.
Regards, Henrik
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