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From "Xiaoyu Yao (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-7701) Support reporting per storage type quota and usage with hadoop/hdfs shell
Date Tue, 31 Mar 2015 17:41:53 GMT

    [ https://issues.apache.org/jira/browse/HDFS-7701?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14388913#comment-14388913
] 

Xiaoyu Yao commented on HDFS-7701:
----------------------------------

Thanks Peter for the update! +1 (non-binding) for patch v4. 
[~arpitagarwal], can you help review the patch?

> Support reporting per storage type quota and usage with hadoop/hdfs shell
> -------------------------------------------------------------------------
>
>                 Key: HDFS-7701
>                 URL: https://issues.apache.org/jira/browse/HDFS-7701
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: datanode, namenode
>            Reporter: Xiaoyu Yao
>            Assignee: Peter Shi
>         Attachments: HDFS-7701.01.patch, HDFS-7701.02.patch, HDFS-7701.03.patch, HDFS-7701.04.patch
>
>
> "hadoop fs -count -q" or "hdfs dfs -count -q" currently shows name space/disk space quota
and remaining quota information. With HDFS-7584, we want to display per storage type quota
and its remaining information as well.
> The current output format as shown below may not easily accomodate 6 more columns = 3
(existing storage types) * 2 (quota/remaining quota). With new storage types added in future,
this will make the output even more crowded. There are also compatibility issues as we don't
want to break any existing scripts monitoring hadoop fs -count -q output. 
> $ hadoop fs -count -q -v /test
>        QUOTA       REM_QUOTA     SPACE_QUOTA REM_SPACE_QUOTA    DIR_COUNT   FILE_COUNT
      CONTENT_SIZE PATHNAME
>         none             inf       524288000       524266569            1           15
             21431 /test
> Propose to add -t parameter to display ONLY the storage type quota information of the
directory in the separately. This way, existing scripts will work as-is without using -t parameter.

> 1) When -t is not followed by a specific storage type, quota and usage information for
all storage types will be displayed. 
> $ hadoop fs -count -q  -t -h -v /test
>        SSD_QUOTA       REM_SSD_QUOTA     DISK_QUOTA REM_DISK_QUOTA ARCHIVAL_QUOTA REM_ARCHIVAL_QUOTA
PATHNAME
>         512MB             256MB       none             inf         none      inf    
       /test
> 2) If -t is followed by a storage type, only the quota and remaining quota of the storage
type is displayed. 
> $ hadoop fs -count -q  -t SSD -h -v /test
>  
> SSD_QUOTA REM_SSD_QUOTA PATHNAME
> 512 MB             256 MB                   /test



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