[
https://issues.apache.org/jira/browse/HDFS-4114?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13493423#comment-13493423
]
Eli Collins commented on HDFS-4114:
-----------------------------------
{quote}
What do you mean? HDFS-3625 "touched" it just in July.
I actually made BackupNode work for Hadoop-0.22. I don't wee why it is not
possible for 0.23.
{quote}
I mean that it hasn't seen development activity get committed aside from fixing
the tests (eg HDFS-3625), I've not seen any users try it etc, none of the
active developers maintain it, etc.
I don't see how the BackupNode is useful in its current state (just a node that
you can stream edits to). The goal for the BackupNode was to evolve from it's
current state to become a StandbyNode, but that effort is, several years later,
not made much progress. Eg HDFS-2064 has been patch available for a year on a
branch that, IIUC, no one plans to release from. The only 0.22 based system I'm
aware of has since moved off of 0.22.
> Deprecate the BackupNode and CheckpointNode in 2.0
> --------------------------------------------------
>
> Key: HDFS-4114
> URL: https://issues.apache.org/jira/browse/HDFS-4114
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Eli Collins
> Assignee: Eli Collins
>
> Per the thread on hdfs-dev@ (http://s.apache.org/tMT) let's remove the
> BackupNode and CheckpointNode.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira
