[jira] [Commented] (YARN-261) Ability to kill AM attempts

["Hadoop QA (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/YARN-261?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13813780#comment-13813780 ] 

Hadoop QA commented on YARN-261:
--------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12612119/YARN-261--n7.patch
  against trunk revision .

    {color:green}+1 @author{color}.  The patch does not contain any @author tags.

    {color:green}+1 tests included{color}.  The patch appears to include 3 new or modified test files.

    {color:green}+1 javac{color}.  The applied patch does not increase the total number of javac compiler warnings.

    {color:red}-1 javadoc{color}.  The javadoc tool appears to have generated 1 warning messages.

    {color:green}+1 eclipse:eclipse{color}.  The patch built with eclipse:eclipse.

    {color:green}+1 findbugs{color}.  The patch does not introduce any new Findbugs (version 1.3.9) warnings.

    {color:green}+1 release audit{color}.  The applied patch does not increase the total number of release audit warnings.

    {color:red}-1 core tests{color}.  The following test timeouts occurred in hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager:

org.apache.hadoop.mapreduce.v2.TestUberAM

    {color:green}+1 contrib tests{color}.  The patch passed contrib unit tests.

Test results: https://builds.apache.org/job/PreCommit-YARN-Build/2369//testReport/
Console output: https://builds.apache.org/job/PreCommit-YARN-Build/2369//console

This message is automatically generated.

> Ability to kill AM attempts
> ---------------------------
>
>                 Key: YARN-261
>                 URL: https://issues.apache.org/jira/browse/YARN-261
>             Project: Hadoop YARN
>          Issue Type: New Feature
>          Components: api
>    Affects Versions: 2.0.3-alpha
>            Reporter: Jason Lowe
>            Assignee: Andrey Klochkov
>         Attachments: YARN-261--n2.patch, YARN-261--n3.patch, YARN-261--n4.patch, YARN-261--n5.patch, YARN-261--n6.patch, YARN-261--n7.patch, YARN-261.patch
>
>
> It would be nice if clients could ask for an AM attempt to be killed.  This is analogous to the task attempt kill support provided by MapReduce.
> This feature would be useful in a scenario where AM retries are enabled, the AM supports recovery, and a particular AM attempt is stuck.  Currently if this occurs the user's only recourse is to kill the entire application, requiring them to resubmit a new application and potentially breaking downstream dependent jobs if it's part of a bigger workflow.  Killing the attempt would allow a new attempt to be started by the RM without killing the entire application, and if the AM supports recovery it could potentially save a lot of work.  It could also be useful in workflow scenarios where the failure of the entire application kills the workflow, but the ability to kill an attempt can keep the workflow going if the subsequent attempt succeeds.



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