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Date: Fri, 24 Apr 2015 19:24:39 +0000 (UTC)
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Subject: [jira] [Commented] (YARN-3387) Previous AM's container complete
 message couldn't pass to current am if am restarted and rm changed
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    [ https://issues.apache.org/jira/browse/YARN-3387?page=3Dcom.atlassian.=
jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=3D14511=
586#comment-14511586 ]=20

Hudson commented on YARN-3387:
------------------------------

SUCCESS: Integrated in Hadoop-trunk-Commit #7666 (See [https://builds.apach=
e.org/job/Hadoop-trunk-Commit/7666/])
YARN-3387. Previous AM's container completed status couldn't pass to curren=
t AM if AM and RM restarted during the same time. Contributed by Sandflee (=
jianhe: rev d03dcb9635dbd79a45d229d1cab5fd28e5e49f49)
* hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-res=
ourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/rm=
app/RMAppImpl.java
* hadoop-yarn-project/CHANGES.txt
* hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-res=
ourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/Te=
stWorkPreservingRMRestart.java
* hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-res=
ourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/rm=
app/attempt/RMAppAttemptImpl.java


> Previous AM's container complete message couldn't pass to current am if a=
m restarted and rm changed
> -------------------------------------------------------------------------=
--------------------------
>
>                 Key: YARN-3387
>                 URL: https://issues.apache.org/jira/browse/YARN-3387
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: resourcemanager
>    Affects Versions: 2.6.0
>            Reporter: sandflee
>            Assignee: sandflee
>            Priority: Critical
>              Labels: patch
>             Fix For: 2.8.0
>
>         Attachments: YARN-3387.001.patch, YARN-3387.002.patch
>
>
> suppose am work preserving and rm ha is enabled.
> container complete message is passed to appattemt.justFinishedContainers =
in rm=E3=80=82in normal situation=EF=BC=8Call attempt in one app shares the=
 same justFinishedContainers, but when rm changed, every attempt has it's o=
wn justFinishedContainers, so in situations below, container complete messa=
ge couldn't passed to am:
> 1, am restart
> 2, rm changes
> 3, container launched by first am completes
> container complete message will be passed to appAttempt1 not appAttempt2,=
 but am pull finished containers from appAttempt2 (currentAppAttempt)


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