[
https://issues.apache.org/jira/browse/SPARK-17931?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15704407#comment-15704407
]
Apache Spark commented on SPARK-17931:
--------------------------------------
User 'kayousterhout' has created a pull request for this issue:
https://github.com/apache/spark/pull/16053
> taskScheduler has some unneeded serialization
> ---------------------------------------------
>
> Key: SPARK-17931
> URL: https://issues.apache.org/jira/browse/SPARK-17931
> Project: Spark
> Issue Type: Improvement
> Components: Spark Core
> Reporter: Guoqiang Li
>
> When taskScheduler instantiates TaskDescription, it calls
> `Task.serializeWithDependencies(task, sched.sc.addedFiles,
> sched.sc.addedJars, ser)`. It serializes task and its dependency.
> But after SPARK-2521 has been merged into the master, the ResultTask class
> and ShuffleMapTask class no longer contain rdd and closure objects.
> TaskDescription class can be changed as below:
> {noformat}
> class TaskDescription[T](
> val taskId: Long,
> val attemptNumber: Int,
> val executorId: String,
> val name: String,
> val index: Int,
> val task: Task[T]) extends Serializable
> {noformat}
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
