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From Ted Yu <yuzhih...@gmail.com>
Subject resevoir blocks for region server
Date Mon, 28 Jan 2013 22:14:08 GMT
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

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