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From "Tsz Wo Nicholas Sze (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-12957) Limit the number of outstanding async calls
Date Sat, 30 Apr 2016 21:21:12 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-12957?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15265498#comment-15265498
] 

Tsz Wo Nicholas Sze commented on HADOOP-12957:
----------------------------------------------

There is a findbugs warning "Format string should use %n rather than \n in org.apache.hadoop.ipc.Client.checkAsyncCall()
...".  Please take a look.

> Limit the number of outstanding async calls
> -------------------------------------------
>
>                 Key: HADOOP-12957
>                 URL: https://issues.apache.org/jira/browse/HADOOP-12957
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: ipc
>            Reporter: Xiaobing Zhou
>            Assignee: Xiaobing Zhou
>         Attachments: HADOOP-12957-HADOOP-12909.000.patch, HADOOP-12957-combo.000.patch,
HADOOP-12957.001.patch, HADOOP-12957.002.patch, HADOOP-12957.003.patch, HADOOP-12957.004.patch,
HADOOP-12957.005.patch, HADOOP-12957.006.patch, HADOOP-12957.007.patch, HADOOP-12957.008.patch,
HADOOP-12957.009.patch
>
>
> In async RPC, if the callers don't read replies fast enough, the buffer storing replies
could be used up. This is to propose limiting the number of outstanding async calls to eliminate
the issue.



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