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Posted to hdfs-issues@hadoop.apache.org by "Wei-Chiu Chuang (JIRA)" <ji...@apache.org> on 2018/08/08 11:44:00 UTC

[jira] [Commented] (HDFS-13804) DN maxDataLength is useless except DN webui. I suggest to get maxDataLength from NN heartbeat.

    [ https://issues.apache.org/jira/browse/HDFS-13804?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16573078#comment-16573078 ] 

Wei-Chiu Chuang commented on HDFS-13804:
----------------------------------------

Sorry but I'm confused. maxDataLength was added in HDFS-10312 to overcome certain cases where block report can be longer than default protobuf message length. It is certainly used beyond web ui.

> DN maxDataLength is useless except DN webui. I suggest to get maxDataLength from NN heartbeat.
> ----------------------------------------------------------------------------------------------
>
>                 Key: HDFS-13804
>                 URL: https://issues.apache.org/jira/browse/HDFS-13804
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>          Components: datanode
>            Reporter: maobaolong
>            Priority: Major
>              Labels: DataNode
>




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