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From Harry Waye <ha...@arachnys.com>
Subject Re: HBase regionserver SIGSEGV periodically
Date Wed, 15 Jun 2016 18:45:49 GMT
This seems to have resolve the issue, no sigsegv seen... yet.

Thanks Esteban

Harry

On Fri, Jun 10, 2016 at 6:08 PM Esteban Gutierrez <esteban@cloudera.com>
wrote:

> Hi Harry,
>
> As you mentioned, moving to JDK8 is a good idea. There are many known
> issues with G1GC and JDK7 that make using the G1 collector unreliable and
> you will see that kind of crashes once in a while.
>
> cheers,
> esteban.
>
>
> --
> Cloudera, Inc.
>
>
> On Fri, Jun 10, 2016 at 9:35 AM, Harry Waye <harry@arachnys.com> wrote:
>
> > Our regionservers are periodically seg faulting, roughly once a day, and
> I
> > would appreciate some help debugging. Some version details:
> >
> > Java HotSpot(TM) 64-Bit Server VM (24.80-b11) for linux-amd64 JRE
> > (1.7.0_80-b15), built on Apr 10 2015 19:53:14 by "java_re" with gcc 4.3.0
> > 20080428 (Red Hat 4.3.0-8)
> >
> > hbase-regionserver 0.98.6+cdh5.3.2+83-1.cdh5.3.2.p0.17~precise-cdh5.3.2
> >
> > The segfault log output is:
> > https://gist.github.com/hazzadous/aa5013f50824658e75b75fd860c73f02
> >
> > This has details of the java options as well.  Heap is ~46GB using G1GC.
> >
> > The log output from HBase around this event is:
> > https://gist.github.com/hazzadous/4b94b5dcb351a360881c04fb54b5a70f
> >
> > I'm going to attempt to update to java 8 to see if there's any
> improvements
> > but any analysis will be appreciated.
> >
> > Harry
> >
>

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