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https://issues.apache.org/jira/browse/BOOKKEEPER-201?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13267426#comment-13267426
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Uma Maheswara Rao G commented on BOOKKEEPER-201:
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Thanks a lot, Flavio for the explanation.
I got your point here. Operator should ensure that, he will repair the failed
directories or replace with new before node down and start again back. So, that
it will be consider it back as normal.
{quote}
We probably also want to give the operator the chance to add disks, just so
that we can bring the bookie back to its original state in the case we replace
the disk.
{quote}
Seems like a dynamic addition of directories. Good one.
> Interface to remove slow disks
> ------------------------------
>
> Key: BOOKKEEPER-201
> URL: https://issues.apache.org/jira/browse/BOOKKEEPER-201
> Project: Bookkeeper
> Issue Type: Improvement
> Reporter: Flavio Junqueira
>
> As per a conversation with Ivan and Ben, we propose an interface that enables
> an operator to make a bookie disk inactive. The general idea is that if a
> bookie has multiple ledger disks and one is continuously underperforming,
> then we would like to tell the bookie to stop creating ledgers on that disk.
> Eventually the bookie stops using that disk.
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