[ 
https://issues.apache.org/jira/browse/HDFS-9070?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14971141#comment-14971141
 ] 

Allen Wittenauer commented on HDFS-9070:
----------------------------------------

bq. Should I make this change compatible, so that this function could be used 
in 2.x? Currently we run system tests on hdfs with scripts which need 
being-written blocks infos from fsck. 

You can't.  If you change the (pre-existing) output of a command line utility, 
it's automatically incompatible:

http://hadoop.apache.org/docs/r2.7.1/hadoop-project-dist/hadoop-common/Compatibility.html#Command_Line_Interface_CLI

bq. By the way, how should we write the release note? I haven't wrote release 
note before.

Go up to edit in the JIRA and fill in the Release Note box. Say what changed 
and how it may impact end users.

> Allow fsck display pending replica location information for being-written 
> blocks
> --------------------------------------------------------------------------------
>
>                 Key: HDFS-9070
>                 URL: https://issues.apache.org/jira/browse/HDFS-9070
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>            Reporter: GAO Rui
>            Assignee: GAO Rui
>             Fix For: 3.0.0
>
>         Attachments: HDFS-9070--HDFS-7285.00.patch, 
> HDFS-9070-HDFS-7285.00.patch, HDFS-9070-HDFS-7285.01.patch, 
> HDFS-9070-HDFS-7285.02.patch, HDFS-9070-trunk.03.patch, 
> HDFS-9070-trunk.04.patch, HDFS-9070-trunk.05.patch, HDFS-9070-trunk.06.patch, 
> HDFS-9070-trunk.07.patch
>
>
> When a EC file is being written, it can be helpful to allow fsck display 
> datanode information of the being-written EC file block group. 



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Reply via email to