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https://issues.apache.org/jira/browse/HDFS-7210?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14164724#comment-14164724
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Hadoop QA commented on HDFS-7210:
---------------------------------
{color:red}-1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12673825/HDFS-7210-002.patch
against trunk revision 2a51494.
{color:red}-1 patch{color}. The patch command could not apply the patch.
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/8369//console
This message is automatically generated.
> Avoid two separate RPC's namenode.append() and namenode.getFileInfo() for an
> append call from DFSClient
> -------------------------------------------------------------------------------------------------------
>
> Key: HDFS-7210
> URL: https://issues.apache.org/jira/browse/HDFS-7210
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: hdfs-client, namenode
> Reporter: Vinayakumar B
> Assignee: Vinayakumar B
> Attachments: HDFS-7210-001.patch, HDFS-7210-002.patch
>
>
> Currently DFSClient does 2 RPCs to namenode for an append operation.
> {{append()}} for re-opening the file and getting the last block,
> {{getFileInfo()}} Another on to get HdfsFileState
> If we can combine result of these 2 calls and make one RPC, then it can
> reduce load on NameNode.
> For the backward compatibility we need to keep existing {{append()}} call as
> is, need to add one more. similar to {{rename2}}
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