[ 
https://issues.apache.org/jira/browse/HDFS-988?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12835472#action_12835472
 ] 

Todd Lipcon commented on HDFS-988:
----------------------------------

Does this need to be a separate JIRA from HDFS-909? This code is covered by 
that patch.

Also I think HDFS-956 needs to be fixed for this to truly catch all cases.

> saveNamespace can corrupt edits log
> -----------------------------------
>
>                 Key: HDFS-988
>                 URL: https://issues.apache.org/jira/browse/HDFS-988
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: name-node
>            Reporter: dhruba borthakur
>
> The adminstrator puts the namenode is safemode and then issues the 
> savenamespace command. This can corrupt the edits log. The problem is that  
> when the NN enters safemode, there could still be pending logSycs occuring 
> from other threads. Now, the saveNamespace command, when executed, would save 
> a edits log with partial writes. I have seen this happen on 0.20.
> https://issues.apache.org/jira/browse/HDFS-909?focusedCommentId=12828853&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12828853

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.

Reply via email to