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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-12916) Allow different Hadoop IPC Call Queue throttling policies with FCQ/BackOff
Date Mon, 28 Mar 2016 18:03:25 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-12916?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15214584#comment-15214584
] 

ASF GitHub Bot commented on HADOOP-12916:
-----------------------------------------

Github user arp7 commented on a diff in the pull request:

    https://github.com/apache/hadoop/pull/86#discussion_r57606373
  
    --- Diff: hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/conf/Configuration.java
---
    @@ -1636,6 +1640,15 @@ public long getTimeDuration(String name, long defaultValue, TimeUnit
unit) {
         return unit.convert(Long.parseLong(vStr), vUnit.unit());
       }
     
    +  public long[] getTimeDurations(String name, TimeUnit unit) {
    --- End diff --
    
    Consider returning a List.


> Allow different Hadoop IPC Call Queue throttling policies with FCQ/BackOff
> --------------------------------------------------------------------------
>
>                 Key: HADOOP-12916
>                 URL: https://issues.apache.org/jira/browse/HADOOP-12916
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: ipc
>            Reporter: Xiaoyu Yao
>            Assignee: Xiaoyu Yao
>         Attachments: HADOOP-12916.00.patch, HADOOP-12916.01.patch, HADOOP-12916.02.patch,
HADOOP-12916.03.patch, HADOOP-12916.04.patch
>
>
> Currently back off policy from HADOOP-10597 is hard coded to base on whether call queue
is full. This ticket is open to allow flexible back off policies such as moving average of
response time in RPC calls of different priorities. 



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