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https://issues.apache.org/jira/browse/HBASE-17792?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15927492#comment-15927492
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stack commented on HBASE-17792:
-------------------------------
lgtm [~huaxiang]
Did we always make lots of threads in this test or was there a recent change
that brought it on?
Thanks boss.
> Use a shared thread pool for AtomicityWriter, AtomicGetReader,
> AtomicScanReader's connections in TestAcidGuarantees
> -------------------------------------------------------------------------------------------------------------------
>
> Key: HBASE-17792
> URL: https://issues.apache.org/jira/browse/HBASE-17792
> Project: HBase
> Issue Type: Bug
> Affects Versions: 2.0.0
> Reporter: huaxiang sun
> Assignee: huaxiang sun
> Priority: Minor
> Attachments: HBASE-17792-master-001.patch
>
>
> AtomicityWriter, AtomicGetReader, AtomicScanReader creates connection inside,
> since the thread pool is not shared, by default each connection will create
> 256 threads. If there are 5 AtomicityWriters, 1 AtomicGetReader, and 1
> AtomicScanReader, it will create lots of threads and causes max user
> processes to be reached, and OOME. Use a share thread pool to work around
> this issue.
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