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Date: Wed, 21 Nov 2012 00:26:24 -0800
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 <CAN89x=x-2PK=WN8kBrVuTnUbeRanK8NZg-MgGbYs3vBvg8SmMw@mail.gmail.com>
Subject: Re: memory leak
From: Suraj Varma <svarma.ng@gmail.com>
To: user@hbase.apache.org
Content-Type: text/plain; charset=ISO-8859-1

Have you turned on mslab in your hbase-site.xml?
--Suraj

On Wed, Nov 21, 2012 at 12:16 AM, Yusup Ashrap <aphawk@gmail.com> wrote:
>>Does your hadoop support append/sync?
> current version of hadoop supports append/sync ,but  we have not trun on
> explicitely in hdfs-site.xml.
>
>
>>Yeah, there is a whole industry of tools for looking at running apps.
>>You could try the profiler in eclipse or one of the commercial tools.
> I will google that.
>
>
>>So, what is the worry?  You are using CMS?  It carries lots of
>>garbage.   If you are really concerned, then maybe dump a heap -- this
>>can take a while to write if your heap is large and you will freeze
>>the daemon while the heap is being written (be sure you write the heap
>>to a place that has space) -- and use one of the aforementioned tools
>>to inspect it.
>
> it's kinda delicate to dump heap now, and i tried once and regionserver
> process crashed .
> dumping heap process  ended simultaneously.