[jira] [Resolved] (HDFS-16911) Distcp with snapshot diff to support Ozone filesystem.

["Uma Maheswara Rao G (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HDFS-16911?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Uma Maheswara Rao G resolved HDFS-16911.
----------------------------------------
    Fix Version/s: 3.4.0
       Resolution: Fixed

Thanks [~sadanand_shenoy] for the contribution. I have just merged this to trunk.

> Distcp with snapshot diff to support Ozone filesystem.
> ------------------------------------------------------
>
>                 Key: HDFS-16911
>                 URL: https://issues.apache.org/jira/browse/HDFS-16911
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: distcp
>            Reporter: Sadanand Shenoy
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 3.4.0
>
>
> Currently in DistcpSync i.e the step which applies the diff b/w 2 provided snapshots as arguments to the distcp job with -diff option, only DistributedFilesystem and WebHDFS filesytems are supported.
>  
> {code:java}
> // currently we require both the source and the target file system are
> // DistributedFileSystem or (S)WebHdfsFileSystem.
> if (!(srcFs instanceof DistributedFileSystem
>         || srcFs instanceof WebHdfsFileSystem)) {
>   throw new IllegalArgumentException("Unsupported source file system: "
>       + srcFs.getScheme() + "://. " +
>       "Supported file systems: hdfs://, webhdfs:// and swebhdfs://.");
> }
> if (!(tgtFs instanceof DistributedFileSystem
>     || tgtFs instanceof WebHdfsFileSystem)) {
>   throw new IllegalArgumentException("Unsupported target file system: "
>       + tgtFs.getScheme() + "://. " +
>       "Supported file systems: hdfs://, webhdfs:// and swebhdfs://.");
> }{code}
> As Ozone now supports snapshot feature after HDDS-6517, add support to use distcp with ozone snapshots.
>  



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