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https://issues.apache.org/jira/browse/HBASE-13269?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14366594#comment-14366594
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stack commented on HBASE-13269:
-------------------------------
Does what JIRA promises so +1 (but pity we can't presize -- to do later when we
have more 'sophisticated' means as per [~jonathan.lawlor])
> Remove result array preallocation to avoid OOME with large scan caching values
> ------------------------------------------------------------------------------
>
> Key: HBASE-13269
> URL: https://issues.apache.org/jira/browse/HBASE-13269
> Project: HBase
> Issue Type: Bug
> Reporter: Andrew Purtell
> Assignee: Andrew Purtell
> Fix For: 1.0.1, 0.98.12
>
> Attachments: HBASE-13269-0.98.patch, HBASE-13269-1.0.patch
>
>
> Scan#setCaching(Integer.MAX_VALUE) will likely terminate the regionserver
> with an OOME due to preallocation of the result array according to this
> parameter. We should limit the preallocation to some sane value. Definitely
> affects 0.98 (fix needed to HRegionServer) and 1.0.x (fix needed to
> RsRPCServices), not sure about later versions.
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