after upgrading cluster from 0.20.5 to 0.90.7 which went good , I'm
monitoring one issue which appeared: every day at exactly same time the CPU
load created by elasticsearch java process on all cluster nodes increases
from 2-3% to 90% for 15 minutes
it started exactly after upgrade
I checked periodic tasks, load from application, and other places:
there are no cron jobs at that time
the application activity is not high at that moment - the users's load
is even lower at that time
so all points to the fact that this was caused after upgrade
after upgrading cluster from 0.20.5 to 0.90.7 which went good , I'm
monitoring one issue which appeared: every day at exactly same time the CPU
load created by elasticsearch java process on all cluster nodes increases
from 2-3% to 90% for 15 minutes
it started exactly after upgrade
I checked periodic tasks, load from application, and other places:
there are no cron jobs at that time
the application activity is not high at that moment - the users's load
is even lower at that time
so all points to the fact that this was caused after upgrade
what time is it? Can you see if the load is actually caused by the java
process? If it is you can use the hot_threads API to investigate further,
in case this happens again.
after upgrading cluster from 0.20.5 to 0.90.7 which went good , I'm
monitoring one issue which appeared: every day at exactly same time the CPU
load created by elasticsearch java process on all cluster nodes increases
from 2-3% to 90% for 15 minutes
it started exactly after upgrade
I checked periodic tasks, load from application, and other places:
there are no cron jobs at that time
the application activity is not high at that moment - the users's load
is even lower at that time
so all points to the fact that this was caused after upgrade
we found the reason of the load spike - and it was not upgrade to 0.90.7
it was scheduled task which was hard to find
thanks for helping
Середа, 27 листопада 2013 р. 12:43:07 UTC+2 користувач Alexander Reelsen
написав:
Hey,
what time is it? Can you see if the load is actually caused by the java
process? If it is you can use the hot_threads API to investigate further,
in case this happens again.
On Tue, Nov 26, 2013 at 9:46 PM, Jason Wee <peic...@gmail.com<javascript:>
wrote:
Just a wild guess, could it be gc? or could probably turn on the logging
to debug could give some hints.
/Jason
On Tue, Nov 26, 2013 at 11:18 PM, tetlika <tet...@gmail.com <javascript:>
wrote:
hi!
after upgrading cluster from 0.20.5 to 0.90.7 which went good , I'm
monitoring one issue which appeared: every day at exactly same time the CPU
load created by elasticsearch java process on all cluster nodes increases
from 2-3% to 90% for 15 minutes
it started exactly after upgrade
I checked periodic tasks, load from application, and other places:
there are no cron jobs at that time
the application activity is not high at that moment - the users's
load is even lower at that time
so all points to the fact that this was caused after upgrade
any thoughts on how to act further?
thanks
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