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From "Jing Zhao (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-8289) DFSStripedOutputStream uses an additional rpc all to getErasureCodingInfo
Date Wed, 06 May 2015 23:40:00 GMT

    [ https://issues.apache.org/jira/browse/HDFS-8289?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14531694#comment-14531694
] 

Jing Zhao commented on HDFS-8289:
---------------------------------

Ahh, I see why you move ECSchemaProto into hdfs.proto. Please skip comment #4.

> DFSStripedOutputStream uses an additional rpc all to getErasureCodingInfo
> -------------------------------------------------------------------------
>
>                 Key: HDFS-8289
>                 URL: https://issues.apache.org/jira/browse/HDFS-8289
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: Tsz Wo Nicholas Sze
>            Assignee: Yong Zhang
>         Attachments: HDFS-8289.000.patch, HDFS-8289.001.patch
>
>
> {code}
>     // ECInfo is restored from NN just before writing striped files.
>     ecInfo = dfsClient.getErasureCodingInfo(src);
> {code}
> The rpc call above can be avoided by adding ECSchema to HdfsFileStatus.



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