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From "Chen Liang (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-12304) Remove unused parameter from FsDatasetImpl#addVolume
Date Tue, 15 Aug 2017 23:52:00 GMT

     [ https://issues.apache.org/jira/browse/HDFS-12304?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Chen Liang updated HDFS-12304:
------------------------------
    Attachment: HDFS-12304.001.patch

> Remove unused parameter from FsDatasetImpl#addVolume
> ----------------------------------------------------
>
>                 Key: HDFS-12304
>                 URL: https://issues.apache.org/jira/browse/HDFS-12304
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>            Reporter: Chen Liang
>            Assignee: Chen Liang
>            Priority: Minor
>         Attachments: HDFS-12304.001.patch
>
>
> FsDatasetImpl has this method
> {code}
>   private void addVolume(Collection<StorageLocation> dataLocations,
>       Storage.StorageDirectory sd) throws IOException
> {code}
> Parameter {{dataLocations}} was introduced in HDFS-6740, this variable was used to get
storage type info. But HDFS-10637 has changed the way of getting storage type in this method,
making dataLocations no longer being used at all here. We should probably remove dataLocations
for a cleaner interface.



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