[
https://issues.apache.org/jira/browse/HDFS-1073?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12856562#action_12856562
]
Todd Lipcon commented on HDFS-1073:
-----------------------------------
Hi Konstantin,
Thanks for the question. I'm maintaining the existing fsimage_ckpt_N naming for
the upload in progress. So at startup, that file is removed during recovery.
The old image fsimage_M where M < N would still exist, so that would be used
for recovery.
The same's true for checkpoint uploads - if it fails in the middle it wouldn't
be renamed yet, so we'd recover from an older fsimage.
> Simpler model for Namenode's fs Image and edit Logs
> ----------------------------------------------------
>
> Key: HDFS-1073
> URL: https://issues.apache.org/jira/browse/HDFS-1073
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Sanjay Radia
> Assignee: Todd Lipcon
>
> The naming and handling of NN's fsImage and edit logs can be significantly
> improved resulting simpler and more robust code.
--
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators:
https://issues.apache.org/jira/secure/Administrators.jspa
-
For more information on JIRA, see: http://www.atlassian.com/software/jira
