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Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2014/12/01 09:47:13 UTC

[jira] [Commented] (SPARK-4671) Streaming block need not to replicate 2 copies when WAL is enabled

    [ https://issues.apache.org/jira/browse/SPARK-4671?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14229547#comment-14229547 ] 

Apache Spark commented on SPARK-4671:
-------------------------------------

User 'jerryshao' has created a pull request for this issue:
https://github.com/apache/spark/pull/3534

> Streaming block need not to replicate 2 copies when WAL is enabled
> ------------------------------------------------------------------
>
>                 Key: SPARK-4671
>                 URL: https://issues.apache.org/jira/browse/SPARK-4671
>             Project: Spark
>          Issue Type: Bug
>          Components: Streaming
>    Affects Versions: 1.2.0
>            Reporter: Saisai Shao
>
> Generated streaming blocks should not be replicated to another node when WAL is enabled, since WAL is already fault tolerant, this will hurt the throughput of streaming application.



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