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https://issues.apache.org/jira/browse/BOOKKEEPER-742?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13960170#comment-13960170
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Hadoop QA commented on BOOKKEEPER-742:
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Testing JIRA BOOKKEEPER-742


Patch 
[0001-Fix-for-empty-ledgers-using-quorum.trunk.patch|https://issues.apache.org/jira/secure/attachment/12638709/0001-Fix-for-empty-ledgers-using-quorum.trunk.patch]
 downloaded at Fri Apr  4 17:09:15 UTC 2014

----------------------------

{color:green}+1 PATCH_APPLIES{color}
{color:green}+1 CLEAN{color}
{color:green}+1 RAW_PATCH_ANALYSIS{color}
.    {color:green}+1{color} the patch does not introduce any @author tags
.    {color:green}+1{color} the patch does not introduce any tabs
.    {color:green}+1{color} the patch does not introduce any trailing spaces
.    {color:green}+1{color} the patch does not introduce any line longer than 
120
.    {color:green}+1{color} the patch does adds/modifies 2 testcase(s)
{color:green}+1 RAT{color}
.    {color:green}+1{color} the patch does not seem to introduce new RAT 
warnings
{color:green}+1 JAVADOC{color}
.    {color:green}+1{color} the patch does not seem to introduce new Javadoc 
warnings
{color:green}+1 COMPILE{color}
.    {color:green}+1{color} HEAD compiles
.    {color:green}+1{color} patch compiles
.    {color:green}+1{color} the patch does not seem to introduce new javac 
warnings
{color:green}+1 FINDBUGS{color}
.    {color:green}+1{color} the patch does not seem to introduce new Findbugs 
warnings
{color:green}+1 TESTS{color}
.    Tests run: 901
{color:green}+1 DISTRO{color}
.    {color:green}+1{color} distro tarball builds with the patch 

----------------------------
{color:green}*+1 Overall result, good!, no -1s*{color}


The full output of the test-patch run is available at

.   https://builds.apache.org/job/bookkeeper-trunk-precommit-build/599/

> Fix for empty ledgers losing quorum.
> ------------------------------------
>
>                 Key: BOOKKEEPER-742
>                 URL: https://issues.apache.org/jira/browse/BOOKKEEPER-742
>             Project: Bookkeeper
>          Issue Type: Bug
>          Components: bookkeeper-auto-recovery
>            Reporter: Ivan Kelly
>            Assignee: Ivan Kelly
>             Fix For: 4.3.0, 4.2.3
>
>         Attachments: 0001-Fix-for-empty-ledgers-using-quorum.trunk.patch, 
> 0003-Fix-for-empty-ledgers-using-quorum.branch4.2.patch
>
>
> If a ledger is open and empty, when a bookie in the ensemble crashes no 
> recovery will take place (because there's nothing to recover). This open 
> empty unrepaired ledger can persist for a long time. If it loses another 
> bookie, it can lose quorum. At this point it's impossible for the bookie to 
> know that its an empty ledger, and the admin gets notified of missing data.



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