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From "Lars Hofhansl (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-9468) Previous active master can still serves RPC request when it is trying recovering expired zk session
Date Wed, 11 Sep 2013 21:00:54 GMT

     [ https://issues.apache.org/jira/browse/HBASE-9468?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Lars Hofhansl updated HBASE-9468:
---------------------------------

    Attachment: 9468-0.94.txt

0.94 patch.
                
> Previous active master can still serves RPC request when it is trying recovering expired
zk session
> ---------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-9468
>                 URL: https://issues.apache.org/jira/browse/HBASE-9468
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Feng Honghua
>            Assignee: Feng Honghua
>             Fix For: 0.98.0, 0.96.0
>
>         Attachments: 9468-0.94.txt, HBASE-9468-trunk-v0.patch
>
>
> When the active master's zk session expires, it'll try to recover zk session, but without
turn off its RpcServer. What if a previous backup master has already become the now active
master, and some client tries to send request to this expired master by using the cached master
info? Any problem here?

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