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From rama krishna <ram_krish...@hotmail.com>
Subject RE: ANN: The third hbase 0.94.0 release candidate is available for download
Date Thu, 10 May 2012 17:17:48 GMT

HiI will let you know which build exactly produced that problem.  When we upgraded the build
with that of May 8th or May 7th(exact date i forgot)then we did not get that problem.
But one thing is flushes were very frequent and the system was heavily loaded.
RegardsRam

> From: todd@cloudera.com
> Date: Thu, 10 May 2012 10:01:20 -0700
> Subject: Re: ANN: The third hbase 0.94.0 release candidate is available for download
> To: dev@hbase.apache.org
> CC: lhofhansl@yahoo.com; ram_krish_86@hotmail.com
> 
> On Thu, May 10, 2012 at 8:41 AM, Ramkrishna.S.Vasudevan
> <ramkrishna.vasudevan@huawei.com> wrote:
> > But older version has a filehandler leak in DN side for which Todd has
> > provided fix in hadoop side. Refer to HDFS-3359.  We can easily reproduce
> > this problem if we have a multiple column family table and frequent flushes
> > happen and it impacts HBase heavily.
> 
> Have you seen actual impact from this? Or just a lot of xceivers? We
> noticed and fixed the bug because we saw a lot of xceivers at a
> customer site, but it turned out that the problem they were
> experiencing was actually due to a different issue. The high number of
> xceivers is "unhealthy" but didn't cause errors/downtime.
> 
> -Todd
> -- 
> Todd Lipcon
> Software Engineer, Cloudera
 		 	   		  
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