[
https://issues.apache.org/jira/browse/HDFS-15028?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16986774#comment-16986774
]
Yang Yun commented on HDFS-15028:
---------------------------------
I have no number how much the overhead is reduced by the change for the local
disk. I think it can be ignored .But we met this issue when we mount a slow
volume from remote as Archive storage.
Yes, it break the underlying changing of the volume size. the fix should be
configurable and disabled by default to keep current behavior.
> Keep the capacity of volume and reduce a system call
> ----------------------------------------------------
>
> Key: HDFS-15028
> URL: https://issues.apache.org/jira/browse/HDFS-15028
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: datanode
> Reporter: Yang Yun
> Assignee: Yang Yun
> Priority: Minor
> Attachments: HDFS-15028.patch
>
>
> The local volume is not changed. so keep the first value of the capacity and
> reuse for each heartbeat．
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
