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From "Camille Fournier (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ZOOKEEPER-1442) Uncaught exception handler should exit on a java.lang.Error
Date Fri, 28 Jul 2017 13:40:00 GMT

    [ https://issues.apache.org/jira/browse/ZOOKEEPER-1442?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16104966#comment-16104966
] 

Camille Fournier commented on ZOOKEEPER-1442:
---------------------------------------------

Oh 2012, how we missed you. Apparently this is still an issue! We should probably fix it.


> Uncaught exception handler should exit on a java.lang.Error
> -----------------------------------------------------------
>
>                 Key: ZOOKEEPER-1442
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-1442
>             Project: ZooKeeper
>          Issue Type: Bug
>          Components: java client, server
>    Affects Versions: 3.4.3, 3.3.5
>            Reporter: Jeremy Stribling
>            Assignee: Jeremy Stribling
>            Priority: Minor
>         Attachments: ZOOKEEPER-1442.patch, ZOOKEEPER-1442.patch, ZOOKEEPER-1442.patch
>
>
> The uncaught exception handler registered in NIOServerCnxnFactory and ClientCnxn simply
logs exceptions and lets the rest of ZooKeeper go on its merry way.  However, errors such
as OutOfMemoryErrors should really crash the program, as they represent unrecoverable errors.
 If the exception that gets to the uncaught exception handler is an instanceof a java.lang.Error,
ZK should exit with an error code (in addition to logging the error).



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