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https://issues.apache.org/jira/browse/HDFS-16911?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17701247#comment-17701247
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ASF GitHub Bot commented on HDFS-16911:
---------------------------------------
sadanand48 commented on code in PR #5364:
URL: https://github.com/apache/hadoop/pull/5364#discussion_r1138909748
##########
hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/protocol/SnapshotDiffReport.java:
##########
@@ -253,6 +253,11 @@ public String getFromSnapshot() {
return fromSnapshot;
}
+ /** @return {@link #toSnapshot} */
Review Comment:
On carefully looking , the getter for toSnapshot was already defined in
getLaterSnapshotName, so removed this.
```
/** @return {@link #toSnapshot} */
public String getLaterSnapshotName() {
return toSnapshot;
}
```
> 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
>
> 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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