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https://issues.apache.org/jira/browse/MAPREDUCE-6251?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14512118#comment-14512118
]
Hadoop QA commented on MAPREDUCE-6251:
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | pre-patch | 14m 46s | Pre-patch trunk compilation is
healthy. |
| {color:green}+1{color} | @author | 0m 0s | The patch does not contain any
@author tags. |
| {color:green}+1{color} | tests included | 0m 0s | The patch appears to
include 1 new or modified test files. |
| {color:green}+1{color} | whitespace | 0m 0s | The patch has no lines that
end in whitespace. |
| {color:green}+1{color} | javac | 7m 42s | There were no new javac warning
messages. |
| {color:green}+1{color} | javadoc | 10m 1s | There were no new javadoc
warning messages. |
| {color:green}+1{color} | release audit | 0m 23s | The applied patch does
not increase the total number of release audit warnings. |
| {color:red}-1{color} | checkstyle | 4m 30s | The applied patch generated 1
additional checkstyle issues. |
| {color:green}+1{color} | install | 1m 49s | mvn install still works. |
| {color:green}+1{color} | eclipse:eclipse | 0m 37s | The patch built with
eclipse:eclipse. |
| {color:green}+1{color} | findbugs | 2m 14s | The patch does not introduce
any new Findbugs (version 2.0.3) warnings. |
| {color:green}+1{color} | mapreduce tests | 1m 49s | Tests passed in
hadoop-mapreduce-client-core. |
| {color:red}-1{color} | mapreduce tests | 102m 38s | Tests failed in
hadoop-mapreduce-client-jobclient. |
| | | 146m 31s | |
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|| Reason || Tests ||
| Timed out tests | org.apache.hadoop.mapreduce.v2.TestMRJobs |
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|| Subsystem || Report/Notes ||
| Patch URL |
http://issues.apache.org/jira/secure/attachment/12728064/MAPREDUCE-6251.2.patch
|
| Optional Tests | javadoc javac unit findbugs checkstyle |
| git revision | trunk / 4a3dabd |
| checkstyle |
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/5449/artifact/patchprocess/checkstyle-result-diff.txt
|
| hadoop-mapreduce-client-core test log |
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/5449/artifact/patchprocess/testrun_hadoop-mapreduce-client-core.txt
|
| hadoop-mapreduce-client-jobclient test log |
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/5449/artifact/patchprocess/testrun_hadoop-mapreduce-client-jobclient.txt
|
| Test Results |
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/5449/testReport/ |
| Console output |
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/5449/console |
This message was automatically generated.
> JobClient needs additional retries at a higher level to address
> not-immediately-consistent dfs corner cases
> -----------------------------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-6251
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-6251
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: jobhistoryserver, mrv2
> Affects Versions: 2.6.0
> Reporter: Craig Welch
> Assignee: Craig Welch
> Attachments: MAPREDUCE-6251.0.patch, MAPREDUCE-6251.1.patch,
> MAPREDUCE-6251.2.patch
>
>
> The JobClient is used to get job status information for running and completed
> jobs. Final state and history for a job is communicated from the application
> master to the job history server via a distributed file system - where the
> history is uploaded by the application master to the dfs and then
> scanned/loaded by the jobhistory server. While HDFS has strong consistency
> guarantees not all Hadoop DFS's do. When used in conjunction with a
> distributed file system which does not have this guarantee there will be
> cases where the history server may not see an uploaded file, resulting in the
> dreaded "no such job" and a null value for the RunningJob in the client.
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