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Old 08-05-2013, 05:14 PM   #1
forrie
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Reports/graphs from Nagios raw log files


I have the need to assemble a report and graph from a series of existing Nagios logs that cover a month or so.

Preferably, assemble some RRD graph that shows the outages and times.

I realize there are utilities to have Nagios log to MySQL etc., but that won't really help me right now. I need to parse the logs and get the information settled.

I looked around the net, don't see much out there - but I wonder if anyone here might know of a few tricks I could use to accomplish what I need. There are specific hosts I need to report.

Thanks.
 
Old 08-06-2013, 12:50 AM   #2
sharadchhetri
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Quote:
Originally Posted by forrie View Post
I have the need to assemble a report and graph from a series of existing Nagios logs that cover a month or so.

Preferably, assemble some RRD graph that shows the outages and times.

I realize there are utilities to have Nagios log to MySQL etc., but that won't really help me right now. I need to parse the logs and get the information settled.

I looked around the net, don't see much out there - but I wonder if anyone here might know of a few tricks I could use to accomplish what I need. There are specific hosts I need to report.

Thanks.
You can try with gnu plot but you have to write script.
 
Old 08-06-2013, 05:37 PM   #3
forrie
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Registered: Sep 2003
Distribution: RedHat
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Original Poster
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I figured out out to script out the data I need from the logs. Basically, the timestamp and RTA value.

Right now, I'm trying to figure out how to correctly input these into rrd with rrdtool:

rrdtool create rtatrack.rrd --start 946684800 --step 600 DS:time:GAUGE:600:U:U DS:rta:GAUGE:600:1:999 RRA:MIN:0.5:1:999 RRA:MAX:0.5:1:999 RRA:AVERAGE:0.5:1:
999

I'm not sure that's accurate. The values I have in a large file (over 3,000 entries) are in the form of:

epoch:value

where it could be

1326233071:22.64

which RRDTOOl complains about in terms of

ERROR: ./rtatrack.rrd: expected 2 data source readings (got 2) from 1308663854

so clearly I'm not doing something correctly.

I have a ton of logs that need to be calculated with these figures. It's just not something I've done before.

So I have a script created to parse through the many entries and perform "rrdtool update" to catch up with the data.
 
  


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