Guoqiang Li created SPARK-18375:
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Summary: Upgrade netty to 4.042
Key: SPARK-18375
URL: https://issues.apache.org/jira/browse/SPARK-18375
Project: Spark
Issue Type: Bug
Components: Build, Spark Core
Affects Versions: 2.0.1
Reporter: Guoqiang Li
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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