[jira] [Commented] (BOOKKEEPER-742) Fix for empty ledgers losing quorum.

["Hadoop QA (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/BOOKKEEPER-742?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13960170#comment-13960170 ] 

Hadoop QA commented on BOOKKEEPER-742:
--------------------------------------

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

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{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 

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{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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