[
https://issues.apache.org/jira/browse/HDFS-9229?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14978289#comment-14978289
]
Surendra Singh Lilhore commented on HDFS-9229:
----------------------------------------------
Thanks [~zhz] for review..
bq. The behavior of shared directories is worth more discussions. The current
patch returns 0 if the directory is shared. Since the purpose of this new
metric is for local storage planning / provisioning, shall we report size of
shared dirs as well?
Do we have any interface to get size of shared dirs in namenode ?.
bq. The temporary nnDirSizeMap is not necessary. I think we can directly clear
and add to nameDirSizeMap.
This I did purposefully. Getting size for all the dir and updating in map will
take some time because it is I/O call. Suppose we updated size for one dir and
in-between some one read that map then he will get incomplete info.
> Expose size of NameNode directory as a metric
> ---------------------------------------------
>
> Key: HDFS-9229
> URL: https://issues.apache.org/jira/browse/HDFS-9229
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: namenode
> Affects Versions: 2.7.1
> Reporter: Zhe Zhang
> Assignee: Surendra Singh Lilhore
> Priority: Minor
> Attachments: HDFS-9229.001.patch, HDFS-9229.002.patch,
> HDFS-9229.003.patch, HDFS-9229.004.patch, HDFS-9229.005.patch
>
>
> Useful for admins in reserving / managing NN local file system space. Also
> useful when transferring NN backups.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
