hbase-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Ted Yu <yuzhih...@gmail.com>
Subject Re: HBASE-5898 & 0.92.2
Date Tue, 11 Dec 2012 20:26:38 GMT
Have you seen Lars' comment today on the JIRA ?

I don't know whether CDH3u0 is close to hdfs 1.0.3 or 1.0.4

Cheers

On Tue, Dec 11, 2012 at 12:14 PM, Shrijeet Paliwal
<shrijeet@rocketfuel.com>wrote:

> Done https://gist.github.com/4261746
>
>
> On Tue, Dec 11, 2012 at 12:10 PM, Ted Yu <yuzhihong@gmail.com> wrote:
>
> > Shrijeet:
> > The attachment didn't go through.
> >
> > Can you use pastebin ?
> >
> > Thanks
> >
> > On Tue, Dec 11, 2012 at 12:05 PM, Shrijeet Paliwal
> > <shrijeet@rocketfuel.com>wrote:
> >
> > > Hello All,
> > >
> > > If our read of https://issues.apache.org/jira/browse/HBASE-5898 is
> > > correct it talks about three issues:
> > >
> > > #1 Contention on a lock causing bad performance
> > > #2 HDFS slowness causing IPC handlers blocked for large times.
> > > #3 A mysterious bug which causes what looks like a deadlock
> > >
> > > In out environment[1] we are seeing #3 (ish) signals. Attached is the
> > > stack trace. One of our region server got blocked (almost all of IPC
> > > handlers) for 11 hours, so it can not be #1 OR #2.
> > >
> > > We have not back ported the patch yet so cant say if it fixes the issue
> > or
> > > not. Also it is difficult to reproduce.  There is a rumor that a
> program
> > to
> > > reproduce this issue exist, does it?
> > >
> > > Eager to hear thoughts.
> > >
> > > [1] HBase version 0.92.2 , Hadoop version CDH3u0
> > > -Shrijeet
> > >
> >
>

Mime
  • Unnamed multipart/alternative (inline, None, 0 bytes)
View raw message