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 <shrij...@rocketfuel.com>wrote: > Done https://gist.github.com/4261746 > > > On Tue, Dec 11, 2012 at 12:10 PM, Ted Yu <yuzhih...@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 > > <shrij...@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 > > > > > >
