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https://issues.apache.org/jira/browse/BOOKKEEPER-152?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13205350#comment-13205350
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[email protected] commented on BOOKKEEPER-152:
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Ship it!


+1. thanks Ivan.

- Sijie


On 2012-02-10 10:33:25, Ivan Kelly wrote:
bq.  
bq.  -----------------------------------------------------------
bq.  This is an automatically generated e-mail. To reply, visit:
bq.  https://reviews.apache.org/r/3737/
bq.  -----------------------------------------------------------
bq.  
bq.  (Updated 2012-02-10 10:33:25)
bq.  
bq.  
bq.  Review request for bookkeeper.
bq.  
bq.  
bq.  Summary
bq.  -------
bq.  
bq.  Proposed fix ensures that at least one of each quorum replies to 
ReadLastConfirmed.
bq.  
bq.  Refactors code a bit to make the read last confirmed common for recovery 
and standalone read last confirmed.
bq.  
bq.  The bug here was actually that we were waiting for quorumSize responses, 
from the bookies, when really all we need to get a response from one bookie in 
each possible quorum. in the 2/2 case as above this means only 1 bookie need 
response.
bq.  
bq.  There's a fix for the timeouts and an improvement in fencing which fixing 
this uncovered.
bq.  
bq.  
bq.  This addresses bug BOOKKEEPER-152.
bq.      https://issues.apache.org/jira/browse/BOOKKEEPER-152
bq.  
bq.  
bq.  Diffs
bq.  -----
bq.  
bq.    
bookkeeper-server/src/test/java/org/apache/bookkeeper/test/LedgerRecoveryTest.java
 77a2f69 
bq.    
bookkeeper-server/src/main/java/org/apache/bookkeeper/client/RoundRobinDistributionSchedule.java
 4a88747 
bq.    
bookkeeper-server/src/main/java/org/apache/bookkeeper/proto/PerChannelBookieClient.java
 a68fc8c 
bq.    
bookkeeper-server/src/test/java/org/apache/bookkeeper/client/BookieRecoveryTest.java
 cbd2277 
bq.    
bookkeeper-server/src/test/java/org/apache/bookkeeper/test/BaseTestCase.java 
da52ca5 
bq.    
bookkeeper-server/src/test/java/org/apache/bookkeeper/test/BookieFailureTest.java
 5873255 
bq.    
bookkeeper-server/src/main/java/org/apache/bookkeeper/client/DistributionSchedule.java
 f2ed6bd 
bq.    
bookkeeper-server/src/main/java/org/apache/bookkeeper/client/LedgerHandle.java 
e3d1847 
bq.    
bookkeeper-server/src/main/java/org/apache/bookkeeper/client/LedgerRecoveryOp.java
 4625bbb 
bq.    
bookkeeper-server/src/main/java/org/apache/bookkeeper/client/ReadLastConfirmedOp.java
 43e999d 
bq.  
bq.  Diff: https://reviews.apache.org/r/3737/diff
bq.  
bq.  
bq.  Testing
bq.  -------
bq.  
bq.  
bq.  Thanks,
bq.  
bq.  Ivan
bq.  
bq.


                
> Can't recover a ledger whose current ensemble contain failed bookie.
> --------------------------------------------------------------------
>
>                 Key: BOOKKEEPER-152
>                 URL: https://issues.apache.org/jira/browse/BOOKKEEPER-152
>             Project: Bookkeeper
>          Issue Type: Bug
>          Components: bookkeeper-client
>    Affects Versions: 4.0.0
>            Reporter: Sijie Guo
>            Assignee: Ivan Kelly
>             Fix For: 4.1.0
>
>         Attachments: BK-152.draft.patch, BOOKKEEPER-152.diff, 
> BOOKKEEPER-152.diff, BOOKKEEPER-152.diff
>
>
> Suppose we have a unclosed ledger L, whose ensemble size is 2, quorum size is 
> 2. the ledger's current ensemble is <bk1, bk2>.
> bk2 is crashed. 
> we use recovery tool to recover entries in bk2. $ 
> bookkeeper-server/bin/bookkeeper org.apache.bookkeeper.tools.BookKeeperTools 
> bk2 
> recovery failed due to recovery tool can't open ledger L, since ledger L 
> doesn't have enough quorum to readLastConfirmed entry. 
> (asyncOpenLedgerNoRecovery)

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