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From "Benjamin Herta (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SPARK-13796) Lock release errors occur frequently in executor logs
Date Thu, 10 Mar 2016 14:54:40 GMT

    [ https://issues.apache.org/jira/browse/SPARK-13796?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15189389#comment-15189389
] 

Benjamin Herta commented on SPARK-13796:
----------------------------------------

We have been seeing this as well, running with trunk as of this morning.  It doesn't appear
to affect our results, so it may be just log noise, or maybe our testing isn't thorough enough
to see the problem.  One easy way to reproduce it is to run the org.apache.spark.examples.mllib.LBFGSExample
example program.

> Lock release errors occur frequently in executor logs
> -----------------------------------------------------
>
>                 Key: SPARK-13796
>                 URL: https://issues.apache.org/jira/browse/SPARK-13796
>             Project: Spark
>          Issue Type: Bug
>          Components: Spark Core
>    Affects Versions: 2.0.0
>            Reporter: Nishkam Ravi
>            Priority: Minor
>
> Executor logs contain a lot of these error messages (irrespective of the workload):
> 16/03/08 17:53:07 ERROR executor.Executor: 1 block locks were not released by TID = 1119



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