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[Bug 1337102] pmlogger should avoid redundant logging

To: pcp@xxxxxxxxxxx
Subject: [Bug 1337102] pmlogger should avoid redundant logging
From: bugzilla@xxxxxxxxxx
Date: Thu, 19 May 2016 08:54:50 +0000
Auto-submitted: auto-generated
Delivered-to: pcp@xxxxxxxxxxx
In-reply-to: <bug-1337102-355098@xxxxxxxxxxxxxxxxxxx>
References: <bug-1337102-355098@xxxxxxxxxxxxxxxxxxx>
https://bugzilla.redhat.com/show_bug.cgi?id=1337102



--- Comment #2 from Marko Myllynen <myllynen@xxxxxxxxxx> ---
Ok, if it sounds tricky then using scripts is probably the most feasible way
forward. The action holdoff logic works to a certain degree, perhaps pmie
actually could be enhanced a bit: one idea I had in mind was to allow to define
variables on the pmie side as part of actions (if this is already possible then
I've missed it). So something like:

some_limit = 10

some_check = "
    some_inst (
        some.metric
    )
";

all_sample ( $some_check @0..9 ) > $some_limit && $some_knob == 0
    -> some_knob = 1 &
       shell 10 min "/usr/local/sbin/some_script on";
all_sample ( $some_check @0..9 ) > $some_limit && $some_knob == 1
    -> some_knob = 0 &
       shell 10 min "/usr/local/sbin/some_script off";

Thanks.

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