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https://issues.apache.org/jira/browse/HADOOP-17010?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chao Sun updated HADOOP-17010:
------------------------------
Component/s: ipc
Fix Version/s: 3.4.0
Hadoop Flags: Reviewed
Release Note:
This commit adds a new configuration {{callqueue.capacity.weights}} which can
be used to specify capacity allocation among all subqueues when FairCallQueue
is enabled. The value for this configuration is expected to be a list of
positive integers separated by {{,}}, whose length should equal to
{{scheduler.priority.levels}}. Each of the element in the list specifies the
weight associated with the subqueue at that index.
In default, each subqueue is associated with weight 1, i.e., all subqueues are
allocated with the same capacity.
> Add queue capacity weights support in FairCallQueue
> ---------------------------------------------------
>
> Key: HADOOP-17010
> URL: https://issues.apache.org/jira/browse/HADOOP-17010
> Project: Hadoop Common
> Issue Type: New Feature
> Components: ipc
> Reporter: Fengnan Li
> Assignee: Fengnan Li
> Priority: Major
> Fix For: 3.4.0
>
> Attachments: HADOOP-17010.001.patch, HADOOP-17010.002.patch
>
>
> Right now in FairCallQueue all subqueues share the same capacity by evenly
> distributing total capacity. This requested feature is to make subqueues able
> to have different queue capacity where more important queues can have more
> capacity, thus less queue overflow and client backoffs.
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