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Posted to common-issues@hadoop.apache.org by "Kan Zhang (JIRA)" <ji...@apache.org> on 2010/02/17 18:33:28 UTC

[jira] Updated: (HADOOP-6572) RPC responses may be out-of-order with respect to SASL

     [ 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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