-Re: HBASE-5898 & 0.92.2
Shrijeet Paliwal 2012-12-11, 20:14
On Tue, Dec 11, 2012 at 12:10 PM, Ted Yu <[EMAIL PROTECTED]> wrote:
> The attachment didn't go through.
> Can you use pastebin ?
> On Tue, Dec 11, 2012 at 12:05 PM, Shrijeet Paliwal
> <[EMAIL PROTECTED]>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 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
> > not. Also it is difficult to reproduce. There is a rumor that a program
> > reproduce this issue exist, does it?
> > Eager to hear thoughts.
> >  HBase version 0.92.2 , Hadoop version CDH3u0
> > -Shrijeet