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https://issues.apache.org/jira/browse/BOOKKEEPER-355?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13431622#comment-13431622
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Sijie Guo commented on BOOKKEEPER-355:
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@Rakesh,
I agreed to check NoSuchLedger and NoSuchEntry exception. Waiting for all
responses is pessimistic solution. I would prefer to do it in optimistic way.
For NoSuchLedger and NoSuchEntry, we just wait for all responses to confirm it
is really a NoSuchLedger and NoSuchEntry.
> Ledger recovery will mark ledger as closed with -1, in case of slow bookie is
> added to ensemble during recovery add
> --------------------------------------------------------------------------------------------------------------------
>
> Key: BOOKKEEPER-355
> URL: https://issues.apache.org/jira/browse/BOOKKEEPER-355
> Project: Bookkeeper
> Issue Type: Bug
> Components: bookkeeper-server
> Affects Versions: 4.1.0, 4.2.0
> Reporter: Vinay
> Attachments: BOOKKEEPER-355.patch
>
>
> Scenario:
> ------------
> 1. Ledger is created with ensemble and quorum size as 2, written with one
> entry
> 2. Now first bookie is in the ensemble is made down.
> 3. Another client fence and trying to recover the same ledger
> 4. During this time ensemble change will happen and new bookie will be added.
> But this bookie is not able to connect.
> 5. This recovery will fail.
> 7. Now previously added bookie came up.
> 8. Another client trying to recover the same ledger.
> 9. Since new bookie is first in the ensemble, doRecoveryRead() is reading
> from that bookie and getting NoSuchLedgerException and closing the ledger
> with -1
> i.e. Marking the ledger as empty, even though first client had successfully
> written one entry.
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