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Posted to issues@spark.apache.org by "Saisai Shao (JIRA)" <ji...@apache.org> on 2015/09/17 02:38:45 UTC
[jira] [Commented] (SPARK-10644) Applications wait even if free
executors are available
[ https://issues.apache.org/jira/browse/SPARK-10644?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14791370#comment-14791370 ]
Saisai Shao commented on SPARK-10644:
-------------------------------------
Does you jobs have dependencies? That is saying the 4th job relies on the first 3 jobs to be finished and get results.
> Applications wait even if free executors are available
> ------------------------------------------------------
>
> Key: SPARK-10644
> URL: https://issues.apache.org/jira/browse/SPARK-10644
> Project: Spark
> Issue Type: Bug
> Components: Scheduler
> Affects Versions: 1.5.0
> Environment: RHEL 6.5 64 bit
> Reporter: Balagopal Nair
>
> Number of workers: 21
> Number of executors: 63
> Steps to reproduce:
> 1. Run 4 jobs each with max cores set to 10
> 2. The first 3 jobs run with 10 each. (30 executors consumed so far)
> 3. The 4 th job waits even though there are 33 idle executors.
> The reason is that a job will not get executors unless
> the total number of EXECUTORS in use < the number of WORKERS
> If there are executors available, resources should be allocated to the pending job.
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