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https://issues.apache.org/jira/browse/ZOOKEEPER-464?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12855158#action_12855158
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Erwin Tam commented on ZOOKEEPER-464:
-------------------------------------

Flavio, my comments a couple of entries above talks about the EntryLogger's 
"BKLO" header that was causing the problem.  That was creating the issue in the 
junit test making it fail intermittently.  I sent you and Ben an email about 
this fix too in more detail but we could talk about it more if you want. Thanks!

> Need procedure to garbage collect ledgers
> -----------------------------------------
>
>                 Key: ZOOKEEPER-464
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-464
>             Project: Zookeeper
>          Issue Type: New Feature
>          Components: contrib-bookkeeper
>            Reporter: Flavio Paiva Junqueira
>            Assignee: Erwin Tam
>             Fix For: 3.4.0
>
>         Attachments: zookeeper-464-log.txt, ZOOKEEPER-464.patch, 
> ZOOKEEPER-464.patch, ZOOKEEPER-464.patch
>
>
> An application using BookKeeper is likely to use a large number of ledgers 
> over time. Such an application might not need all ledgers created over time 
> and might want to delete some of these ledgers to free up some space on 
> bookies. The idea of this jira is to implement a procedure that enables an 
> application to garbage-collect unwanted ledgers.
> To garbage-collect a ledger, we need to delete the ledger metadata on 
> ZooKeeper, and delete the ledger data on corresponding bookies. 

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