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https://issues.apache.org/jira/browse/MAPREDUCE-4938?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13553310#comment-13553310
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Hudson commented on MAPREDUCE-4938:
-----------------------------------

Integrated in Hadoop-trunk-Commit #3230 (See 
[https://builds.apache.org/job/Hadoop-trunk-Commit/3230/])
    MAPREDUCE-4938. Use token request messages defined in hadoop common. 
Contributed by Suresh Srinvias. (Revision 1433227)

     Result = SUCCESS
suresh : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1433227
Files : 
* /hadoop/common/trunk/hadoop-mapreduce-project/CHANGES.txt
* 
/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-common/src/main/java/org/apache/hadoop/mapreduce/v2/api/impl/pb/client/MRClientProtocolPBClientImpl.java
* 
/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-common/src/main/java/org/apache/hadoop/mapreduce/v2/api/impl/pb/service/MRClientProtocolPBServiceImpl.java
* 
/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-common/src/main/java/org/apache/hadoop/mapreduce/v2/api/protocolrecords/impl/pb/CancelDelegationTokenRequestPBImpl.java
* 
/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-common/src/main/java/org/apache/hadoop/mapreduce/v2/api/protocolrecords/impl/pb/CancelDelegationTokenResponsePBImpl.java
* 
/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-common/src/main/java/org/apache/hadoop/mapreduce/v2/api/protocolrecords/impl/pb/GetDelegationTokenRequestPBImpl.java
* 
/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-common/src/main/java/org/apache/hadoop/mapreduce/v2/api/protocolrecords/impl/pb/GetDelegationTokenResponsePBImpl.java
* 
/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-common/src/main/java/org/apache/hadoop/mapreduce/v2/api/protocolrecords/impl/pb/RenewDelegationTokenRequestPBImpl.java
* 
/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-common/src/main/java/org/apache/hadoop/mapreduce/v2/api/protocolrecords/impl/pb/RenewDelegationTokenResponsePBImpl.java
* 
/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-common/src/main/proto/MRClientProtocol.proto
* 
/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-common/src/main/proto/mr_service_protos.proto

                
> Job submission to unknown queue can leave staging directory behind
> ------------------------------------------------------------------
>
>                 Key: MAPREDUCE-4938
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4938
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: client
>    Affects Versions: 2.0.3-alpha, 0.23.5
>            Reporter: Jason Lowe
>
> There is a race where submitting a job to an unknown queue can appear to 
> succeed to the client and then subsequently fail later.  Since there was no 
> AM ever launched, there was nothing left to cleanup the staging directory.  
> At that point the client is the only thing that can cleanup the staging 
> directory.

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