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Posted to dev@bookkeeper.apache.org by "Sijie Guo (JIRA)" <ji...@apache.org> on 2014/12/04 09:44:12 UTC

[jira] [Commented] (BOOKKEEPER-815) Ledger fence state is lost when the ledger file is evicted

    [ https://issues.apache.org/jira/browse/BOOKKEEPER-815?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14234017#comment-14234017 ] 

Sijie Guo commented on BOOKKEEPER-815:
--------------------------------------

we also have similar fix in twitter's branch. looks like you hit the same issue.

the patch looks good to me. +1. and mark the fix version to 4.4.0, 4,3.1. do we need to mark this for 4.2.* branch? [~ikelly] this seems to be a critical bug, since it affects the fundamental fencing mechanism.  

> Ledger fence state is lost when the ledger file is evicted
> ----------------------------------------------------------
>
>                 Key: BOOKKEEPER-815
>                 URL: https://issues.apache.org/jira/browse/BOOKKEEPER-815
>             Project: Bookkeeper
>          Issue Type: Bug
>    Affects Versions: 4.3.0, 4.2.3
>            Reporter: Charles Xie
>            Priority: Critical
>         Attachments: BOOKKEEPER-815.patch
>
>
> we observed in our use case that when a ledger file is evicted before flushing. the fence state isn't persisted to disk, which would cause fencing doesn't work correctly.



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