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Posted to dev@bookkeeper.apache.org by "Flavio Junqueira (JIRA)" <ji...@apache.org> on 2015/04/04 01:33:54 UTC

[jira] [Commented] (BOOKKEEPER-847) ArrayIndexOutOfBoundsException in LedgerFragmentReplicator::updateEnsembleInfo

    [ https://issues.apache.org/jira/browse/BOOKKEEPER-847?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14395265#comment-14395265 ] 

Flavio Junqueira commented on BOOKKEEPER-847:
---------------------------------------------

A quick sanity check, what prevents the same problem from happening after this check: 

{noformat}
if (deadBookieIndex >= 0) {
{noformat}

Is it possible to have a race there?

> ArrayIndexOutOfBoundsException in LedgerFragmentReplicator::updateEnsembleInfo
> ------------------------------------------------------------------------------
>
>                 Key: BOOKKEEPER-847
>                 URL: https://issues.apache.org/jira/browse/BOOKKEEPER-847
>             Project: Bookkeeper
>          Issue Type: Bug
>            Reporter: Jia Zhai
>            Assignee: Jia Zhai
>         Attachments: BOOKKEEPER-847-2.patch, BOOKKEEPER-847.patch
>
>
> ArrayIndexOutOfBoundsException in LedgerFragmentReplicator::updateEnsembleInfo, because update ensemble info might happen after re-read ledger metadata, so the ensemble might already change. if ensemble is already changed, skip replacing the bookie doesn't exist.



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