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Posted to dev@flink.apache.org by "zhijiang (JIRA)" <ji...@apache.org> on 2019/07/12 03:50:00 UTC

[jira] [Created] (FLINK-13235) Change the Netty default transport mode to auto

zhijiang created FLINK-13235:
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             Summary: Change the Netty default transport mode to auto
                 Key: FLINK-13235
                 URL: https://issues.apache.org/jira/browse/FLINK-13235
             Project: Flink
          Issue Type: Improvement
          Components: Runtime / Network
            Reporter: zhijiang
            Assignee: zhijiang


The current default config for "taskmanager.net.transport" in NettyShuffleEnvironmentOptions is "NIO". In order to use "EPOLL" mode which has better performance and is recommended when available, we could change the default config as "AUTO". Then the "NIO" mode is used as a fallback.



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