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https://issues.apache.org/jira/browse/ZOOKEEPER-3419?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17206590#comment-17206590
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Michael Han commented on ZOOKEEPER-3419:
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I have a working in progress branch that targeting upstream but that fell
through cracks due to other priorities. It will take a while to make sure it's
mergeable. I will submit the branch as is so folks at LinkedIn / community can
pre-review, or even help me polish and finish the patch. The code is quite
straightforward, the only tricky part is we probably need rewrite some of the
intrusive changes we made in house to the ZK persistent layer.
> Backup and recovery support
> ---------------------------
>
> Key: ZOOKEEPER-3419
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-3419
> Project: ZooKeeper
> Issue Type: New Feature
> Components: server
> Affects Versions: 3.6.0
> Reporter: Michael Han
> Assignee: Michael Han
> Priority: Major
> Labels: Twitter
>
> Historically ZooKeeper has no intrinsic support for backup and restore. The
> usual approach of doing backup and restore is through customized scripts to
> copy data around, or through some 3rd party tools (exhibitor, etc), which
> introduces operation burden.
> This Jira will introduce another option: a direct support of backup and
> restore from ZooKeeper itself. It's completely built into ZooKeeper, support
> point in time recovery of an entire tree rooted after an oops event, support
> recovery partial tree for test/dev purpose, and can help replay history for
> bug investigation. It will try to provide a generic interface so the backups
> can be directed to different data storage systems (S3, Kafka, HDFS, etc).
> This same system has been in production at Twitter for X years and proved to
> be quite helpful for various use cases mentioned earlier. This will be a
> relative big patch, we'll try break the feature down and incrementally submit
> the patches when they are ready.
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