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HBase, mail # dev - resevoir blocks for region server


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Re: resevoir blocks for region server
Jean-Daniel Cryans 2013-01-28, 22:18
Since we default to OnOutOfMemoryError kill -9 then we should just get
rid of it IMO.

J-D

On Mon, Jan 28, 2013 at 2:14 PM, Ted Yu <[EMAIL PROTECTED]> wrote:
> Hi,
> Analyzing a heap dump, I saw that LinkedList of HRegionServer took up
> noticeable space - namely 4 chunks of 5MB each.
>
> Here is related entry from refguide:
> hbase.regionserver.nbreservationblocks
>
> The number of resevoir blocks of memory release on OOME so we can cleanup
> properly before server shutdown.
>
> Default: 4
>
> I wonder if we can reduce the size of resevoir blocks.
>
> Cheers