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https://issues.apache.org/jira/browse/BOOKKEEPER-581?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13612906#comment-13612906
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Hudson commented on BOOKKEEPER-581:
-----------------------------------
Integrated in bookkeeper-trunk #154 (See
[https://builds.apache.org/job/bookkeeper-trunk/154/])
BOOKKEEPER-581: Ledger recovery doesn't work correctly when recovery adds
force changing ensembles. (sijie via ivank) (Revision 1460765)
Result = SUCCESS
ivank :
Files :
* /zookeeper/bookkeeper/trunk/CHANGES.txt
*
/zookeeper/bookkeeper/trunk/bookkeeper-server/src/main/java/org/apache/bookkeeper/client/LedgerMetadata.java
*
/zookeeper/bookkeeper/trunk/bookkeeper-server/src/main/java/org/apache/bookkeeper/client/LedgerRecoveryOp.java
*
/zookeeper/bookkeeper/trunk/bookkeeper-server/src/main/java/org/apache/bookkeeper/client/PendingReadOp.java
*
/zookeeper/bookkeeper/trunk/bookkeeper-server/src/test/java/org/apache/bookkeeper/client/LedgerRecoveryTest.java
> Ledger recovery doesn't work correctly when recovery adds force changing
> ensembles.
> -----------------------------------------------------------------------------------
>
> Key: BOOKKEEPER-581
> URL: https://issues.apache.org/jira/browse/BOOKKEEPER-581
> Project: Bookkeeper
> Issue Type: Bug
> Components: bookkeeper-client
> Affects Versions: 4.2.0, 4.2.1
> Reporter: Sijie Guo
> Assignee: Sijie Guo
> Priority: Critical
> Fix For: 4.3.0
>
> Attachments: BOOKKEEPER-581.patch
>
>
> currently read and write use same ledger metadata during ledger recovery,
> which is bad. since write will cause changing ensemble which modified
> ensembles map to introducing brand new bookies. those brand new bookies would
> mislead following recovery reads, cause recovery is proceeded in a wrong way.
> E.g.
> 3 bookies, quorums size 2. A, B, C.
> read 0 from A, B.
> recovery add 0: A, B becomes slow. D, E are brought into the ensemble to
> replace A, B.
> so following recovery read would be proceed in ensemble (D, E, C), then we
> would lost all the entries added in A and B.
> this issue is similar as BOOKKEEPER-355.
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