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https://issues.apache.org/jira/browse/BOOKKEEPER-647?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13706051#comment-13706051
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Vinay commented on BOOKKEEPER-647:
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bq. since changing ledger directories and journal directory might cause data
loss and data inconsistency, I don't think we should handle in bookkeeper
level. it is easier to handle outside of bookkeeper.
I agree with your point. But with little extra care admin can take care of
movement of data from one directory to other, and can issue one admin command
to update the cookies. BookKeeper-494 serves the exact purpose of this Jira.
I will duplicate this with that.
> Support changing the journalDirectory and ledgerDirectory after installation
> ----------------------------------------------------------------------------
>
> Key: BOOKKEEPER-647
> URL: https://issues.apache.org/jira/browse/BOOKKEEPER-647
> Project: Bookkeeper
> Issue Type: New Feature
> Components: bookkeeper-server
> Affects Versions: 4.2.1
> Reporter: Vinay
> Assignee: Vinay
> Fix For: 4.2.2, 4.3.0
>
>
> In some cases, user may need to change/add the journal/ledger directories due
> to some problem/performance improvement.
> Since ledgerDirectories, journalDirectories and port is stored in cookies,
> changing any of these is not supported.
> BookKeeper can support changing of ledgerDirectories, journalDirectories
> through some Administrative command.
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