[
https://issues.apache.org/jira/browse/HDFS-1508?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12968405#action_12968405
]
Sanjay Radia commented on HDFS-1508:
------------------------------------
> There is a whole chess game going on underneath with moving files/directories
> and threads writing in parallel.
We really need to get HDFS-1073 completed soon since it simplifies the game
from chess to checkers.
It allows checkpoints to be added without renaming the edits.
This Jira, btw, is independent of that.
> Ability to do savenamespace without being in safemode
> -----------------------------------------------------
>
> Key: HDFS-1508
> URL: https://issues.apache.org/jira/browse/HDFS-1508
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: name-node
> Reporter: dhruba borthakur
> Assignee: dhruba borthakur
> Attachments: savenamespaceWithoutSafemode.txt,
> savenamespaceWithoutSafemode2.txt, savenamespaceWithoutSafemode3.txt
>
>
> In the current code, the administrator can run savenamespace only after
> putting the namenode in safemode. This means that applications that are
> writing to HDFS encounters errors because the NN is in safemode. We would
> like to allow saveNamespace even when the namenode is not in safemode.
> The savenamespace command already acquires the FSNamesystem writelock. There
> is no need to require that the namenode is in safemode too.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
