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https://issues.apache.org/jira/browse/BOOKKEEPER-278?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13400378#comment-13400378
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Ivan Kelly commented on BOOKKEEPER-278:
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I think it would be better to globally disable it for the duration of a rolling
upgrade. The administrator sets a flag (by running a command etc), which
creates a /ledgers/rereplication/disable znode. Before running any
rereplication, the recovery worker checks if this znode exists. If it does it
waits until it disappears to do any work.
> Ability to disable auto recovery temporarily
> --------------------------------------------
>
> Key: BOOKKEEPER-278
> URL: https://issues.apache.org/jira/browse/BOOKKEEPER-278
> Project: Bookkeeper
> Issue Type: Sub-task
> Reporter: Ivan Kelly
> Assignee: Rakesh R
> Fix For: 4.2.0
>
>
> Administrators will need to do rolling upgrades of bookies. If auto recovery
> is enabled during a rolling upgrade, there will be a lot of thrashing of
> ledgers as they recovery gets kicked off. Therefore we need a way to
> temporarily disable it.
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