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Posted to commits@cassandra.apache.org by "Benedict (JIRA)" <ji...@apache.org> on 2014/05/01 21:45:16 UTC

[jira] [Updated] (CASSANDRA-7133) yield in SlabAllocator$Region.allocate could cause starvation

     [ https://issues.apache.org/jira/browse/CASSANDRA-7133?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Benedict updated CASSANDRA-7133:
--------------------------------

    Attachment: 7133.20.txt
                7133.12.txt

Patches for 2.0 and 1.2 attached

> yield in SlabAllocator$Region.allocate could cause starvation
> -------------------------------------------------------------
>
>                 Key: CASSANDRA-7133
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-7133
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Core
>            Reporter: Jeremiah Jordan
>            Assignee: Benedict
>            Priority: Minor
>         Attachments: 7133.12.txt, 7133.20.txt
>
>
> If a low priority thread inserts data into a table, it is possible the yield in org.apache.cassandra.utils.SlabAllocator$Region.allocate() could starve.  We already changed this in CASSANDRA-5549 to not yield any longer.  It might be good to back port some of those changes to 2.0 if they aren't too large.



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