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From "Mohammad Arshad (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (ZOOKEEPER-2695) Handle unknown error for rolling upgrade old client new server scenario
Date Wed, 22 Feb 2017 15:04:44 GMT

     [ https://issues.apache.org/jira/browse/ZOOKEEPER-2695?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Mohammad Arshad updated ZOOKEEPER-2695:
---------------------------------------
    Attachment: ZOOKEEPER-2695-01.patch

Submitting the fix, throwing {{SystemErrorException}} for all errors which are not known to
client 

> Handle unknown error for rolling upgrade old client new server scenario
> -----------------------------------------------------------------------
>
>                 Key: ZOOKEEPER-2695
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-2695
>             Project: ZooKeeper
>          Issue Type: Bug
>          Components: java client
>            Reporter: Mohammad Arshad
>            Assignee: Mohammad Arshad
>         Attachments: ZOOKEEPER-2695-01.patch
>
>
> In Zookeeper rolling upgrade scenario where server is new but client is old, when sever
sends error code which is not understood by the client, client throws NullPointerException.

> KeeperException.SystemErrorException should be thrown for all unknown error code.



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