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From "Yiqun Lin (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-12063) Ozone: Ozone shell: Multiple RPC calls for put/get key
Date Sat, 01 Jul 2017 10:09:00 GMT

    [ https://issues.apache.org/jira/browse/HDFS-12063?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16071154#comment-16071154
] 

Yiqun Lin commented on HDFS-12063:
----------------------------------

Hi [~anu], I did a simple test in my local. I wrote a unit test that using oz shell command
to put 2k files in old/new put key way. And calculate the total elapsed time of these two
ways. I found the new way is faster than the old way a little. The old way costs 136s while
new way costs 116s. But I think if the cluster is busy enough, the new way will make more
sense.

> Ozone: Ozone shell: Multiple RPC calls for put/get key
> ------------------------------------------------------
>
>                 Key: HDFS-12063
>                 URL: https://issues.apache.org/jira/browse/HDFS-12063
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: Nandakumar
>            Assignee: Yiqun Lin
>         Attachments: HDFS-12063-HDFS-7240.001.patch, HDFS-12063-HDFS-7240.002.patch
>
>
> With current implementation multiple RPC calls are made for each put/get key ozone shell
call
> {code:title=org.apache.hadoop.ozone.web.ozShell.keys.PutKeyHandler#execute}
>     OzoneVolume vol = client.getVolume(volumeName);
>     OzoneBucket bucket = vol.getBucket(bucketName);
>     bucket.putKey(keyName, dataFile);
> {code}
> {code:title=org.apache.hadoop.ozone.web.ozShell.keys.GetKeyHandler#execute}
>     OzoneVolume vol = client.getVolume(volumeName);
>     OzoneBucket bucket = vol.getBucket(bucketName);
>     bucket.getKey(keyName, dataFilePath);
> {code}
> This can be optimized.



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