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Posted to issues@spark.apache.org by "Saisai Shao (JIRA)" <ji...@apache.org> on 2014/12/01 08:42:12 UTC

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

Saisai Shao created SPARK-4671:
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             Summary: 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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