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HBase >> mail # user >> memory leak


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Re: memory leak
>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.