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https://issues.apache.org/jira/browse/HBASE-10699?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15832849#comment-15832849
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stack commented on HBASE-10699:
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Also, thanks for aggregating.
> Optimize some code; set capacity on arraylist when possible; use isEmpty;
> reduce allocations
> --------------------------------------------------------------------------------------------
>
> Key: HBASE-10699
> URL: https://issues.apache.org/jira/browse/HBASE-10699
> Project: HBase
> Issue Type: Improvement
> Reporter: @deprecated Yi Deng
> Assignee: Jan Hentschel
> Fix For: 2.0.0
>
> Attachments: HBASE-10699.master.001.patch
>
>
> 1. Set capacity on ArrayList when possible
> 2. Use isEmpty instead of size() == 0 when possible
> 3. Reduce some unnecessary allocation
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