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Posted to mapreduce-issues@hadoop.apache.org by "Ahmed Hussein (Jira)" <ji...@apache.org> on 2020/01/02 16:05:00 UTC
[jira] [Commented] (MAPREDUCE-7252) Handling 0 progress in
SimpleExponential task runtime estimator
[ https://issues.apache.org/jira/browse/MAPREDUCE-7252?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17006893#comment-17006893 ]
Ahmed Hussein commented on MAPREDUCE-7252:
------------------------------------------
[~jeagles] the error is not related to the current patch. It is an old bug that causes the tests to be flaky.
See the pending Jira MAPREDUCE-7099. I am still investigating when did that bug starts to break the tests.
{code:bash}
[WARNING] Tests run: 568, Failures: 0, Errors: 0, Skipped: 10
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 02:00 h
[INFO] Finished at: 2020-01-01T00:06:16Z
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-surefire-plugin:3.0.0-M1:test (default-test) on project hadoop-mapreduce-client-jobclient: There was a timeout or other error in the fork -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException
{code}
> Handling 0 progress in SimpleExponential task runtime estimator
> ---------------------------------------------------------------
>
> Key: MAPREDUCE-7252
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-7252
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Reporter: Ahmed Hussein
> Assignee: Ahmed Hussein
> Priority: Minor
> Attachments: MAPREDUCE-7252.001.patch, MAPREDUCE-7252.002.patch, MAPREDUCE-7252.003.patch
>
>
> The simple exponential runtime estimator (added in MAPREDUCE-7208) seems not to handle the corner cases where the delta progress is 0. As a result, the forecast will be NaN or Inf which messes up the subsequent forecast values.
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