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https://issues.apache.org/jira/browse/HBASE-15513?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15207978#comment-15207978
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Anoop Sam John commented on HBASE-15513:
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bq.Set hbase.hregion.memstore.chunkpool.maxsize to memstore default size (0.4f)
hbase.hregion.memstore.chunkpool.maxsize is not the % heap memory to be used
for chunk pool. By this we need to say % of memstore memory to be used for the
pool.
So if we say this as 0.4 , then the total max heap size which the pool can use
is
xmx value * 0.4 (def memstore size) * 0.4
So if we want whole of the memstore to be memstore chunk pool, give this a
value 1
FYI.
> hbase.hregion.memstore.chunkpool.maxsize is 0.0 by default
> ----------------------------------------------------------
>
> Key: HBASE-15513
> URL: https://issues.apache.org/jira/browse/HBASE-15513
> Project: HBase
> Issue Type: Improvement
> Affects Versions: 2.0.0
> Reporter: Vladimir Rodionov
> Assignee: Vladimir Rodionov
> Fix For: 2.0.0
>
>
> That results in excessive MemStoreLAB chunk allocations because we can not
> reuse them. Not sure, why it has been disabled, by default. May be the code
> has not been tested well?
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