[jira] [Assigned] (HADOOP-13189) FairCallQueue makes callQueue larger than the configured capacity.

["Vinitha Reddy Gankidi (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HADOOP-13189?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Vinitha Reddy Gankidi reassigned HADOOP-13189:
----------------------------------------------

    Assignee: Vinitha Reddy Gankidi

> FairCallQueue makes callQueue larger than the configured capacity.
> ------------------------------------------------------------------
>
>                 Key: HADOOP-13189
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13189
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: ipc
>    Affects Versions: 2.6.0
>            Reporter: Konstantin Shvachko
>            Assignee: Vinitha Reddy Gankidi
>         Attachments: HADOOP-13189.001.patch
>
>
> {{FairCallQueue}} divides {{callQueue}} into multiple (4 by default) sub-queues, with each sub-queue corresponding to a different level of priority. The constructor for {{FairCallQueue}} takes the same parameter {{capacity}} as the default CallQueue implementation, and allocates all its sub-queues of size {{capacity}}. With 4 levels of priority (sub-queues) by default it results in the total callQueue size 4 times larger than it should be based on the configuration.
> {{capacity}} should be divided by the number of sub-queues at some place.



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