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Posted to mapreduce-issues@hadoop.apache.org by "Daryn Sharp (JIRA)" <ji...@apache.org> on 2012/08/31 01:13:08 UTC
[jira] [Created] (MAPREDUCE-4614) Simplify debugging a job's tokens
Daryn Sharp created MAPREDUCE-4614:
--------------------------------------
Summary: Simplify debugging a job's tokens
Key: MAPREDUCE-4614
URL: https://issues.apache.org/jira/browse/MAPREDUCE-4614
Project: Hadoop Map/Reduce
Issue Type: Improvement
Components: client, task
Affects Versions: 0.23.3, 3.0.0, 2.2.0-alpha
Reporter: Daryn Sharp
Assignee: Daryn Sharp
It's exceedingly difficult to debug token issues with a job. Sometimes tokens appear to be missing, or have the wrong service, etc. It would be much easier if job submission logged the tokens submitted, and if tasks logged the tokens they received.
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[jira] [Updated] (MAPREDUCE-4614) Simplify debugging a job's tokens
Posted by "Daryn Sharp (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAPREDUCE-4614?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Daryn Sharp updated MAPREDUCE-4614:
-----------------------------------
Attachment: MAPREDUCE-4614.patch
MAPREDUCE-4614.branch-23.patch
> Simplify debugging a job's tokens
> ---------------------------------
>
> Key: MAPREDUCE-4614
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4614
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: client, task
> Affects Versions: 0.23.3, 3.0.0, 2.2.0-alpha
> Reporter: Daryn Sharp
> Assignee: Daryn Sharp
> Attachments: MAPREDUCE-4614.branch-23.patch, MAPREDUCE-4614.patch
>
>
> It's exceedingly difficult to debug token issues with a job. Sometimes tokens appear to be missing, or have the wrong service, etc. It would be much easier if job submission logged the tokens submitted, and if tasks logged the tokens they received.
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[jira] [Closed] (MAPREDUCE-4614) Simplify debugging a job's tokens
Posted by "Arun C Murthy (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAPREDUCE-4614?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Arun C Murthy closed MAPREDUCE-4614.
------------------------------------
> Simplify debugging a job's tokens
> ---------------------------------
>
> Key: MAPREDUCE-4614
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4614
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: client, task
> Affects Versions: 0.23.3, 3.0.0, 2.0.2-alpha
> Reporter: Daryn Sharp
> Assignee: Daryn Sharp
> Fix For: 0.23.3, 2.0.2-alpha
>
> Attachments: MAPREDUCE-4614.branch-23.patch, MAPREDUCE-4614.patch
>
>
> It's exceedingly difficult to debug token issues with a job. Sometimes tokens appear to be missing, or have the wrong service, etc. It would be much easier if job submission logged the tokens submitted, and if tasks logged the tokens they received.
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[jira] [Commented] (MAPREDUCE-4614) Simplify debugging a job's
tokens
Posted by "Hudson (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAPREDUCE-4614?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13446354#comment-13446354 ]
Hudson commented on MAPREDUCE-4614:
-----------------------------------
Integrated in Hadoop-Common-trunk-Commit #2665 (See [https://builds.apache.org/job/Hadoop-Common-trunk-Commit/2665/])
MAPREDUCE-4614. Simplify debugging a job's tokens (daryn via bobby) (Revision 1379595)
Result = SUCCESS
bobby : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1379595
Files :
* /hadoop/common/trunk/hadoop-mapreduce-project/CHANGES.txt
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapred/YarnChild.java
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/JobSubmitter.java
> Simplify debugging a job's tokens
> ---------------------------------
>
> Key: MAPREDUCE-4614
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4614
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: client, task
> Affects Versions: 0.23.3, 3.0.0, 2.2.0-alpha
> Reporter: Daryn Sharp
> Assignee: Daryn Sharp
> Fix For: 0.23.3, 3.0.0, 2.2.0-alpha
>
> Attachments: MAPREDUCE-4614.branch-23.patch, MAPREDUCE-4614.patch
>
>
> It's exceedingly difficult to debug token issues with a job. Sometimes tokens appear to be missing, or have the wrong service, etc. It would be much easier if job submission logged the tokens submitted, and if tasks logged the tokens they received.
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[jira] [Commented] (MAPREDUCE-4614) Simplify debugging a job's
tokens
Posted by "Robert Joseph Evans (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAPREDUCE-4614?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13446343#comment-13446343 ]
Robert Joseph Evans commented on MAPREDUCE-4614:
------------------------------------------------
The changes look OK to me +1. Please file a JIRA to move the log level back to debug on the job submission ones so we don't forget about it. Although it is chatty enough I don't think we would forget about it.
+1. I'll check it in.
> Simplify debugging a job's tokens
> ---------------------------------
>
> Key: MAPREDUCE-4614
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4614
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: client, task
> Affects Versions: 0.23.3, 3.0.0, 2.2.0-alpha
> Reporter: Daryn Sharp
> Assignee: Daryn Sharp
> Attachments: MAPREDUCE-4614.branch-23.patch, MAPREDUCE-4614.patch
>
>
> It's exceedingly difficult to debug token issues with a job. Sometimes tokens appear to be missing, or have the wrong service, etc. It would be much easier if job submission logged the tokens submitted, and if tasks logged the tokens they received.
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[jira] [Commented] (MAPREDUCE-4614) Simplify debugging a job's
tokens
Posted by "Siddharth Seth (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAPREDUCE-4614?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13446312#comment-13446312 ]
Siddharth Seth commented on MAPREDUCE-4614:
-------------------------------------------
Looks good. Would prefer the client side messages to be at a DEBUG level. If this is really required for debugging (issues which are tough to reproduce etc), maybe we can have them at INFO level while stabilizing the system, and change them to DEBUG at a later point. Otherwise, DEBUG level + a change in the client log level should work.
> Simplify debugging a job's tokens
> ---------------------------------
>
> Key: MAPREDUCE-4614
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4614
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: client, task
> Affects Versions: 0.23.3, 3.0.0, 2.2.0-alpha
> Reporter: Daryn Sharp
> Assignee: Daryn Sharp
> Attachments: MAPREDUCE-4614.branch-23.patch, MAPREDUCE-4614.patch
>
>
> It's exceedingly difficult to debug token issues with a job. Sometimes tokens appear to be missing, or have the wrong service, etc. It would be much easier if job submission logged the tokens submitted, and if tasks logged the tokens they received.
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[jira] [Commented] (MAPREDUCE-4614) Simplify debugging a job's
tokens
Posted by "Hadoop QA (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAPREDUCE-4614?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13445456#comment-13445456 ]
Hadoop QA commented on MAPREDUCE-4614:
--------------------------------------
-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12543190/MAPREDUCE-4614.patch
against trunk revision .
+1 @author. The patch does not contain any @author tags.
-1 tests included. The patch doesn't appear to include any new or modified tests.
Please justify why no new tests are needed for this patch.
Also please list what manual steps were performed to verify this patch.
+1 javac. The applied patch does not increase the total number of javac compiler warnings.
+1 javadoc. The javadoc tool did not generate any warning messages.
+1 eclipse:eclipse. The patch built with eclipse:eclipse.
+1 findbugs. The patch does not introduce any new Findbugs (version 1.3.9) warnings.
+1 release audit. The applied patch does not increase the total number of release audit warnings.
+1 core tests. The patch passed unit tests in hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core.
+1 contrib tests. The patch passed contrib unit tests.
Test results: https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/2797//testReport/
Console output: https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/2797//console
This message is automatically generated.
> Simplify debugging a job's tokens
> ---------------------------------
>
> Key: MAPREDUCE-4614
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4614
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: client, task
> Affects Versions: 0.23.3, 3.0.0, 2.2.0-alpha
> Reporter: Daryn Sharp
> Assignee: Daryn Sharp
> Attachments: MAPREDUCE-4614.branch-23.patch, MAPREDUCE-4614.patch
>
>
> It's exceedingly difficult to debug token issues with a job. Sometimes tokens appear to be missing, or have the wrong service, etc. It would be much easier if job submission logged the tokens submitted, and if tasks logged the tokens they received.
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[jira] [Updated] (MAPREDUCE-4614) Simplify debugging a job's tokens
Posted by "Daryn Sharp (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAPREDUCE-4614?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Daryn Sharp updated MAPREDUCE-4614:
-----------------------------------
Status: Patch Available (was: Open)
> Simplify debugging a job's tokens
> ---------------------------------
>
> Key: MAPREDUCE-4614
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4614
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: client, task
> Affects Versions: 0.23.3, 3.0.0, 2.2.0-alpha
> Reporter: Daryn Sharp
> Assignee: Daryn Sharp
> Attachments: MAPREDUCE-4614.branch-23.patch, MAPREDUCE-4614.patch
>
>
> It's exceedingly difficult to debug token issues with a job. Sometimes tokens appear to be missing, or have the wrong service, etc. It would be much easier if job submission logged the tokens submitted, and if tasks logged the tokens they received.
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[jira] [Commented] (MAPREDUCE-4614) Simplify debugging a job's
tokens
Posted by "Hudson (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAPREDUCE-4614?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13446721#comment-13446721 ]
Hudson commented on MAPREDUCE-4614:
-----------------------------------
Integrated in Hadoop-Mapreduce-trunk #1183 (See [https://builds.apache.org/job/Hadoop-Mapreduce-trunk/1183/])
MAPREDUCE-4614. Simplify debugging a job's tokens (daryn via bobby) (Revision 1379595)
Result = SUCCESS
bobby : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1379595
Files :
* /hadoop/common/trunk/hadoop-mapreduce-project/CHANGES.txt
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapred/YarnChild.java
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/JobSubmitter.java
> Simplify debugging a job's tokens
> ---------------------------------
>
> Key: MAPREDUCE-4614
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4614
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: client, task
> Affects Versions: 0.23.3, 3.0.0, 2.2.0-alpha
> Reporter: Daryn Sharp
> Assignee: Daryn Sharp
> Fix For: 0.23.3, 3.0.0, 2.2.0-alpha
>
> Attachments: MAPREDUCE-4614.branch-23.patch, MAPREDUCE-4614.patch
>
>
> It's exceedingly difficult to debug token issues with a job. Sometimes tokens appear to be missing, or have the wrong service, etc. It would be much easier if job submission logged the tokens submitted, and if tasks logged the tokens they received.
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[jira] [Commented] (MAPREDUCE-4614) Simplify debugging a job's
tokens
Posted by "Hudson (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAPREDUCE-4614?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13446352#comment-13446352 ]
Hudson commented on MAPREDUCE-4614:
-----------------------------------
Integrated in Hadoop-Hdfs-trunk-Commit #2728 (See [https://builds.apache.org/job/Hadoop-Hdfs-trunk-Commit/2728/])
MAPREDUCE-4614. Simplify debugging a job's tokens (daryn via bobby) (Revision 1379595)
Result = SUCCESS
bobby : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1379595
Files :
* /hadoop/common/trunk/hadoop-mapreduce-project/CHANGES.txt
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapred/YarnChild.java
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/JobSubmitter.java
> Simplify debugging a job's tokens
> ---------------------------------
>
> Key: MAPREDUCE-4614
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4614
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: client, task
> Affects Versions: 0.23.3, 3.0.0, 2.2.0-alpha
> Reporter: Daryn Sharp
> Assignee: Daryn Sharp
> Fix For: 0.23.3, 3.0.0, 2.2.0-alpha
>
> Attachments: MAPREDUCE-4614.branch-23.patch, MAPREDUCE-4614.patch
>
>
> It's exceedingly difficult to debug token issues with a job. Sometimes tokens appear to be missing, or have the wrong service, etc. It would be much easier if job submission logged the tokens submitted, and if tasks logged the tokens they received.
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[jira] [Commented] (MAPREDUCE-4614) Simplify debugging a job's
tokens
Posted by "Hudson (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAPREDUCE-4614?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13446377#comment-13446377 ]
Hudson commented on MAPREDUCE-4614:
-----------------------------------
Integrated in Hadoop-Mapreduce-trunk-Commit #2691 (See [https://builds.apache.org/job/Hadoop-Mapreduce-trunk-Commit/2691/])
MAPREDUCE-4614. Simplify debugging a job's tokens (daryn via bobby) (Revision 1379595)
Result = FAILURE
bobby : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1379595
Files :
* /hadoop/common/trunk/hadoop-mapreduce-project/CHANGES.txt
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapred/YarnChild.java
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/JobSubmitter.java
> Simplify debugging a job's tokens
> ---------------------------------
>
> Key: MAPREDUCE-4614
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4614
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: client, task
> Affects Versions: 0.23.3, 3.0.0, 2.2.0-alpha
> Reporter: Daryn Sharp
> Assignee: Daryn Sharp
> Fix For: 0.23.3, 3.0.0, 2.2.0-alpha
>
> Attachments: MAPREDUCE-4614.branch-23.patch, MAPREDUCE-4614.patch
>
>
> It's exceedingly difficult to debug token issues with a job. Sometimes tokens appear to be missing, or have the wrong service, etc. It would be much easier if job submission logged the tokens submitted, and if tasks logged the tokens they received.
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[jira] [Commented] (MAPREDUCE-4614) Simplify debugging a job's
tokens
Posted by "Daryn Sharp (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAPREDUCE-4614?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13446333#comment-13446333 ]
Daryn Sharp commented on MAPREDUCE-4614:
----------------------------------------
I'm ok with INFO during stabilization. As you mention, the problem with client DEBUG log level is we miss the bugs "in the act". Plus we've had enough job submission issues lately that affect oozie which are painfully hard to debug. It's been indispensable to see the submitted tokens, see if the launcher task acquired them, whether the launcher task's job submission sent them along, followed by whether they popped out in the other job.
> Simplify debugging a job's tokens
> ---------------------------------
>
> Key: MAPREDUCE-4614
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4614
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: client, task
> Affects Versions: 0.23.3, 3.0.0, 2.2.0-alpha
> Reporter: Daryn Sharp
> Assignee: Daryn Sharp
> Attachments: MAPREDUCE-4614.branch-23.patch, MAPREDUCE-4614.patch
>
>
> It's exceedingly difficult to debug token issues with a job. Sometimes tokens appear to be missing, or have the wrong service, etc. It would be much easier if job submission logged the tokens submitted, and if tasks logged the tokens they received.
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[jira] [Commented] (MAPREDUCE-4614) Simplify debugging a job's
tokens
Posted by "Hudson (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAPREDUCE-4614?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13446675#comment-13446675 ]
Hudson commented on MAPREDUCE-4614:
-----------------------------------
Integrated in Hadoop-Hdfs-0.23-Build #361 (See [https://builds.apache.org/job/Hadoop-Hdfs-0.23-Build/361/])
MAPREDUCE-4614. Simplify debugging a job's tokens (daryn via bobby) (Revision 1379597)
Result = UNSTABLE
bobby : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1379597
Files :
* /hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/CHANGES.txt
* /hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapred/YarnChild.java
* /hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/JobSubmitter.java
> Simplify debugging a job's tokens
> ---------------------------------
>
> Key: MAPREDUCE-4614
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4614
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: client, task
> Affects Versions: 0.23.3, 3.0.0, 2.2.0-alpha
> Reporter: Daryn Sharp
> Assignee: Daryn Sharp
> Fix For: 0.23.3, 3.0.0, 2.2.0-alpha
>
> Attachments: MAPREDUCE-4614.branch-23.patch, MAPREDUCE-4614.patch
>
>
> It's exceedingly difficult to debug token issues with a job. Sometimes tokens appear to be missing, or have the wrong service, etc. It would be much easier if job submission logged the tokens submitted, and if tasks logged the tokens they received.
--
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[jira] [Commented] (MAPREDUCE-4614) Simplify debugging a job's
tokens
Posted by "Hudson (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAPREDUCE-4614?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13446693#comment-13446693 ]
Hudson commented on MAPREDUCE-4614:
-----------------------------------
Integrated in Hadoop-Hdfs-trunk #1152 (See [https://builds.apache.org/job/Hadoop-Hdfs-trunk/1152/])
MAPREDUCE-4614. Simplify debugging a job's tokens (daryn via bobby) (Revision 1379595)
Result = SUCCESS
bobby : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1379595
Files :
* /hadoop/common/trunk/hadoop-mapreduce-project/CHANGES.txt
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapred/YarnChild.java
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/JobSubmitter.java
> Simplify debugging a job's tokens
> ---------------------------------
>
> Key: MAPREDUCE-4614
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4614
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: client, task
> Affects Versions: 0.23.3, 3.0.0, 2.2.0-alpha
> Reporter: Daryn Sharp
> Assignee: Daryn Sharp
> Fix For: 0.23.3, 3.0.0, 2.2.0-alpha
>
> Attachments: MAPREDUCE-4614.branch-23.patch, MAPREDUCE-4614.patch
>
>
> It's exceedingly difficult to debug token issues with a job. Sometimes tokens appear to be missing, or have the wrong service, etc. It would be much easier if job submission logged the tokens submitted, and if tasks logged the tokens they received.
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[jira] [Updated] (MAPREDUCE-4614) Simplify debugging a job's tokens
Posted by "Robert Joseph Evans (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAPREDUCE-4614?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Robert Joseph Evans updated MAPREDUCE-4614:
-------------------------------------------
Resolution: Fixed
Fix Version/s: 2.2.0-alpha
3.0.0
0.23.3
Status: Resolved (was: Patch Available)
Thanks Daryn,
I put this into trunk, branch-2, and branch-0.23
> Simplify debugging a job's tokens
> ---------------------------------
>
> Key: MAPREDUCE-4614
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4614
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: client, task
> Affects Versions: 0.23.3, 3.0.0, 2.2.0-alpha
> Reporter: Daryn Sharp
> Assignee: Daryn Sharp
> Fix For: 0.23.3, 3.0.0, 2.2.0-alpha
>
> Attachments: MAPREDUCE-4614.branch-23.patch, MAPREDUCE-4614.patch
>
>
> It's exceedingly difficult to debug token issues with a job. Sometimes tokens appear to be missing, or have the wrong service, etc. It would be much easier if job submission logged the tokens submitted, and if tasks logged the tokens they received.
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