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From Jean-Marc Spaggiari <jean-m...@spaggiari.org>
Subject Re: GC peaks during major compaction
Date Thu, 14 Aug 2014 17:19:15 GMT
Also, can you please provide details on the nodes configuration? What's the
heap size?

Thanks,

JM


2014-08-14 13:17 GMT-04:00 lars hofhansl <larsh@apache.org>:

> Can send you JVM command line arguments (specifically how you tune the GC)?
>
> -- Lars
>
>
>
> ________________________________
>  From: yanivG <yaniv.yancovich@gmail.com>
> To: user@hbase.apache.org
> Sent: Thursday, August 14, 2014 9:01 AM
> Subject: GC peaks during major compaction
>
>
> Hi,
> We are running CDH 4.5, 6 nodes with hbase cluster (0.94.6).
> We configured major compaction to run once a week. During this time we are
> getting timeouts while writing to hbase (application level).
> When investigating it further more I have noticed that the timeout are
> being
> caused by GC "Stop the world" scenario which takes 3 minutes and not the
> actual Major compaction (which takes few hours).
> Is there any GC configuration we can set for relaxing it during Major
> compaction?
> Note that we see this GC peak just when the major compaction starts.
> We are running with default hbase GC settings.
> Yaniv
>
>
>
> --
> View this message in context:
> http://apache-hbase.679495.n3.nabble.com/GC-peaks-during-major-compaction-tp4062704.html
> Sent from the HBase User mailing list archive at Nabble.com.
>

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