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Posted to issues@hbase.apache.org by "Elliott Clark (JIRA)" <ji...@apache.org> on 2013/08/07 01:57:47 UTC

[jira] [Updated] (HBASE-9144) Leases class has contention that's not needed

     [ https://issues.apache.org/jira/browse/HBASE-9144?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Elliott Clark updated HBASE-9144:
---------------------------------

    Attachment: HBASE-9144-0.patch

Lets run this by QA to see what it thinks.

This basically replaces DelayQueue by iterating over the ConcurrentHashMap.
                
> Leases class has contention that's not needed
> ---------------------------------------------
>
>                 Key: HBASE-9144
>                 URL: https://issues.apache.org/jira/browse/HBASE-9144
>             Project: HBase
>          Issue Type: Bug
>          Components: regionserver
>    Affects Versions: 0.95.1
>            Reporter: Elliott Clark
>            Assignee: Elliott Clark
>            Priority: Critical
>             Fix For: 0.95.2
>
>         Attachments: HBASE-9144-0.patch
>
>
> The Leases class has lots of thread contention.  These locks are there to ensure that all timeouts are met exactly.  This isn't needed in HBase.  

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