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ASF GitHub Bot commented on HDFS-16791: --------------------------------------- mccormickt12 commented on code in PR #4967: URL: https://github.com/apache/hadoop/pull/4967#discussion_r990510277 ########## hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/FileSystem.java: ########## @@ -4876,6 +4876,16 @@ public CompletableFuture<FSDataInputStream> build() throws IOException { } + /** + * Return root path Review Comment: added a better javadoc here > New API for enclosing root path for a file > ------------------------------------------ > > Key: HDFS-16791 > URL: https://issues.apache.org/jira/browse/HDFS-16791 > Project: Hadoop HDFS > Issue Type: Improvement > Reporter: Tom McCormick > Priority: Major > Labels: pull-request-available > > At LinkedIn we run many HDFS volumes that are federated by either > ViewFilesystem or Router Based Federation. As our number of hdfs volumes > grows, we have a growing need to migrate data seemlessly across volumes. > Many frameworks have a notion of staging or temp directories, but those > directories often live in random locations. We want an API getEnclosingRoot, > which provides the root path a file or dataset. > In ViewFilesystem / Router Based Federation, the enclosingRoot will be the > mount point. > We will also take into account other restrictions for renames like > encryptions zones. > If there are several paths (a mount point and an encryption zone), we will > return the longer path -- This message was sent by Atlassian Jira (v8.20.10#820010) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org