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Posted to issues@hbase.apache.org by "Ted Yu (JIRA)" <ji...@apache.org> on 2016/08/24 20:18:20 UTC

[jira] [Commented] (HBASE-16496) Hotspotting on SequenceIDAccounting during HLOG Performance Test

    [ https://issues.apache.org/jira/browse/HBASE-16496?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15435598#comment-15435598 ] 

Ted Yu commented on HBASE-16496:
--------------------------------

{code}
59	import org.apache.hadoop.hbase.util.*;
{code}
Please don't include unnecessary classes.

Can you show the Hot spot with your change ?

Thanks

> Hotspotting on SequenceIDAccounting during HLOG Performance Test
> ----------------------------------------------------------------
>
>                 Key: HBASE-16496
>                 URL: https://issues.apache.org/jira/browse/HBASE-16496
>             Project: HBase
>          Issue Type: Bug
>            Reporter: John Leach
>            Assignee: John Leach
>            Priority: Trivial
>         Attachments: HBASE-16496.patch, HashMap_Hotspot.tiff
>
>
> I was seeing this hotspot for me during my tests.
> Adding Pic.



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