All,
I've been using mod_jk forever and have some tools[1][2] to check on the
status of a worker and change its state using the status worker.
One of the samples I check is the "errors" count and if it's above 0
then I report an error to my monitoring system.
The problem is that sometimes we just get a random error here or there,
and my only recourse is to go into the status worker and "reset" the
worker which clears out everything. That may not be a big deal because
honestly I don't care what mod_jk thinks the estimated number of
sessions on a particular node is, but what I'd prefer to do is bleed-off
those errors over time.
For example, we check the service every few minutes. If we have more
than 0 errors, we start checking more frequently. If, every time we
checked, we reduced the error-count by some small number, the count
would eventually reach 0 if the event was temporary but it would
continue to grow as long as there was some kind of persistent error
(like Tomcat-node-is-down).
Is there a way to decrement the "errors" count without resetting all
counters back to zero?
Thanks,
-chris
[1] Hmm... I haven't put my check_mod_jk.py upon GitHub. I should do that.
[2]
https://github.com/ChristopherSchultz/apache-tomcat-stuff/tree/master/bin/mod_jk
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