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From "Christopher Tubbs (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ACCUMULO-3132) Fate uses java serialization which is error-prone between upgrades
Date Tue, 16 Sep 2014 17:59:33 GMT

    [ https://issues.apache.org/jira/browse/ACCUMULO-3132?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14135834#comment-14135834
] 

Christopher Tubbs commented on ACCUMULO-3132:
---------------------------------------------

Technically, the check only happens when the data version is bumped, but we typically only
do that between major versions.

> Fate uses java serialization which is error-prone between upgrades
> ------------------------------------------------------------------
>
>                 Key: ACCUMULO-3132
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-3132
>             Project: Accumulo
>          Issue Type: Bug
>          Components: master
>    Affects Versions: 1.5.0, 1.5.1, 1.6.0
>            Reporter: Eric Newton
>
> Fate uses java serialization to save objects to zookeeper.  If an upgrade is performed
while a Fate transaction is running, the data stored in Fate may not deserialize in the upgraded
software unless developers are very careful about the Repo's internals.



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