UsageTrend , our new feature that was introduced in the last RC for 3.2.0, has raised a number of questions:
The check is saying that the history store is not present. Where can I find it?
The -stm switch for the getter activates the history store setting. Of course, the corresponding object (aggregate|volume) has to be chosen as well. Please refer to the example below.
I am trying to understand the trend analysis:
./get_netapp_7m.pl -H $HOSTADDRESS$ ... --object aggregate --stm 100d./check_netapp_pro.pl UsageTrend -H $HOSTADDRESS$ -o aggregate –lookbehind=48h –full=80 -w 60d -c 30d I waited for two days and somehow the check is still returning “UNKNOWN: Not enough history. You may want to review the checks –lookbehind and the getters –stm.”
With a -lookbehind of 48h I would suggest a -stm of 50h for the getter, but - 100d (days) are ok as well. One also has to pay attention to the -tolerance of the check. If it is smaller than the interval of the getter, it is quite possible that a corresponding call is found. Unfortunately, the default value in the last RC was much too small and it had to be set explicitely to a higher value (e.g 180 seconds) in order for it to work with a 3 minute interval of the getter:
$ ./check_netapp_pro.pl UsageTrend ... -o aggregate --lookbehind=48h --tolerance=180 --full=80 -w 60d -c 30d NETAPP_PRO USAGETREND CRITICAL - 2 aggregates checked, 1 critical and 0 warning p01 aggr1: 1899304.0 s (22.0 days) until full (80%), rate: 0.5 / day (CRITICAL) p01 aggr0: 0.0 No change or negative rate in periode, rate: 0 |
Tip: If you want to verify the store contents of a trend check you can only do it through the check itself:
$ ./check_netapp_pro.pl UsageTrend -H sim821 -o aggregate --explore
Respectively, if you want to see only the timestamps of the calls (replaces the switch --explore=calls, that is currently unavailable for the explore of a check):
$ perl check_netapp_pro.pl UsageTrend -H sim821 \ -o aggregate --explore | grep Call ------- Call from 1435744162 (2015-07-01 09:49:22 UTC) ------- Call from 1435743860 (2015-07-01 09:44:20 UTC)
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