[
https://issues.apache.org/jira/browse/HDFS-15513?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17338937#comment-17338937
]
Ayush Saxena commented on HDFS-15513:
-------------------------------------
{quote}Allow client to query snapshot status on one directory
{quote}
The title and the description are conflicting, So following the title if you
want the snapshot status of one directory, In that case
getFileStatus(path).isSnapshotEnabled should do.
FileStatus contains SnpashotEnabled true for the snapshot root. IRRC, So
{{ListStatus}} will also have that for its child directories
> Allow client to query snapshot status on one directory
> ------------------------------------------------------
>
> Key: HDFS-15513
> URL: https://issues.apache.org/jira/browse/HDFS-15513
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: hdfs, hdfs-client
> Affects Versions: 3.3.0
> Reporter: Siyao Meng
> Priority: Major
>
> Alternatively, we can allow the client to query snapshot status on *a list
> of* given directories by the client. Thoughts?
> Rationale:
> At the moment, we could only retrieve the full list of snapshottable
> directories with
> [{{getSnapshottableDirListing()}}|https://github.com/apache/hadoop/blob/233619a0a462ae2eb7e7253b6bb8ae48eaa5eb19/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java#L6986-L6994].
> This leads to the inefficiency In HDFS-15492 that we have to get the
> *entire* list of snapshottable directory to check if a file being deleted is
> inside a snapshottable directory.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
