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From "Apache Spark (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (SPARK-17675) Add Blacklisting of Executors & Nodes within one TaskSet
Date Tue, 27 Sep 2016 02:08:20 GMT

     [ https://issues.apache.org/jira/browse/SPARK-17675?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Apache Spark reassigned SPARK-17675:
------------------------------------

    Assignee: Imran Rashid  (was: Apache Spark)

> Add Blacklisting of Executors & Nodes within one TaskSet
> --------------------------------------------------------
>
>                 Key: SPARK-17675
>                 URL: https://issues.apache.org/jira/browse/SPARK-17675
>             Project: Spark
>          Issue Type: Task
>          Components: Scheduler
>    Affects Versions: 2.0.0
>            Reporter: Imran Rashid
>            Assignee: Imran Rashid
>
> This is a step along the way to SPARK-8425 -- see the design doc on that jira for a complete
discussion of blacklisting.
> To enable incremental review, the first step proposed here is to expand the blacklisting
within tasksets.  In particular, this will enable blacklisting for
> * (task, executor) pairs (this already exists via an undocumented config)
> * (task, node)
> * (taskset, executor)
> * (taskset, node)
> In particular, adding (task, node) is critical to making spark fault-tolerant of one-bad
disk in a cluster, without requiring careful tuning of "spark.task.maxFailures".  The other
additions are also important to avoid many misleading task failures and long scheduling delays
when there is one bad node on a large cluster.



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