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Posted to dev@hbase.apache.org by "stack (JIRA)" <ji...@apache.org> on 2015/04/08 23:06:15 UTC
[jira] [Resolved] (HBASE-11544) [Ergonomics]
hbase.client.scanner.caching is dogged and will try to return batch even if
it means OOME
[ https://issues.apache.org/jira/browse/HBASE-11544?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
stack resolved HBASE-11544.
---------------------------
Resolution: Fixed
Addendum undoing mass object creation done as a subissue of this one by [~jonathan.lawlor]. Re-resolving.
> [Ergonomics] hbase.client.scanner.caching is dogged and will try to return batch even if it means OOME
> ------------------------------------------------------------------------------------------------------
>
> Key: HBASE-11544
> URL: https://issues.apache.org/jira/browse/HBASE-11544
> Project: HBase
> Issue Type: Bug
> Reporter: stack
> Assignee: Jonathan Lawlor
> Priority: Critical
> Fix For: 2.0.0, 1.1.0
>
> Attachments: Allocation_Hot_Spots.html, HBASE-11544-addendum-v1.patch, HBASE-11544-addendum-v2.patch, HBASE-11544-branch_1_0-v1.patch, HBASE-11544-branch_1_0-v2.patch, HBASE-11544-v1.patch, HBASE-11544-v2.patch, HBASE-11544-v3.patch, HBASE-11544-v4.patch, HBASE-11544-v5.patch, HBASE-11544-v6.patch, HBASE-11544-v6.patch, HBASE-11544-v6.patch, HBASE-11544-v7.patch, HBASE-11544-v8-branch-1.patch, HBASE-11544-v8.patch, gc.j.png, h.png, hits.j.png, m.png, mean.png, net.j.png, q (2).png
>
>
> Running some tests, I set hbase.client.scanner.caching=1000. Dataset has large cells. I kept OOME'ing.
> Serverside, we should measure how much we've accumulated and return to the client whatever we've gathered once we pass out a certain size threshold rather than keep accumulating till we OOME.
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