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From "Kan Zhang (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-6572) RPC responses may be out-of-order with respect to SASL
Date Wed, 17 Feb 2010 17:33:28 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-6572?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Kan Zhang updated HADOOP-6572:
------------------------------

    Attachment: c6572-02.patch

adding a patch that ensures call responses are added to the response queue in the same order
as they are wrapped by SASL.

> RPC responses may be out-of-order with respect to SASL
> ------------------------------------------------------
>
>                 Key: HADOOP-6572
>                 URL: https://issues.apache.org/jira/browse/HADOOP-6572
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: ipc, security
>            Reporter: Kan Zhang
>            Assignee: Kan Zhang
>         Attachments: c6572-02.patch
>
>
> SASL enforces its own message ordering. When RPC server sends its responses back, response
A may be wrapped by SASL before response B but is put on response queue after response B.
This results in RPC client receiving wrapped response B ahead of A. When the received messages
are unwrapped by SASL, SASL complaints the messages are out of order.

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