[jira] [Updated] (SPARK-18375) Upgrade netty to 4.0.42.Final

["Guoqiang Li (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-18375?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Guoqiang Li updated SPARK-18375:
--------------------------------
    Summary: Upgrade netty to 4.0.42.Final   (was: Upgrade netty to 4.0.42)

> Upgrade netty to 4.0.42.Final 
> ------------------------------
>
>                 Key: SPARK-18375
>                 URL: https://issues.apache.org/jira/browse/SPARK-18375
>             Project: Spark
>          Issue Type: Bug
>          Components: Build, Spark Core
>    Affects Versions: 1.6.2, 2.0.1
>            Reporter: Guoqiang Li
>
> One of the important changes for 4.0.42.Final is "Support any FileRegion implementation when using epoll transport [#5825|https://github.com/netty/netty/pull/5825]".
> In 4.0.42.Final,[MessageWithHeader|https://github.com/apache/spark/blob/master/common/network-common/src/main/java/org/apache/spark/network/protocol/MessageWithHeader.java] can work properly when {{spark.(shufflem, rpc).io.mode}} is set to epoll



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