FAQ
Remove protocol version check at proxy creation in Hadoop RPC.
--------------------------------------------------------------

Key: HADOOP-7227
URL: https://issues.apache.org/jira/browse/HADOOP-7227
Project: Hadoop Common
Issue Type: New Feature
Reporter: Jitendra Nath Pandey
Assignee: Jitendra Nath Pandey


Currently when a proxy is created for a protocol, there is a round trip of messages to check the protocol version. The protocol version is not checked in any subsequent rpc which could be a problem if the server restarts with a new protocol version. This issue and also the additional round-trip at proxy creation can be avoided if we add the protocol version in every rpc, and server checks the protocol version for every call.

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  • Todd Lipcon (JIRA) at May 2, 2011 at 11:02 pm
    [ https://issues.apache.org/jira/browse/HADOOP-7227?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

    Todd Lipcon reopened HADOOP-7227:
    ---------------------------------

    Remove protocol version check at proxy creation in Hadoop RPC.
    --------------------------------------------------------------

    Key: HADOOP-7227
    URL: https://issues.apache.org/jira/browse/HADOOP-7227
    Project: Hadoop Common
    Issue Type: Improvement
    Components: ipc
    Reporter: Jitendra Nath Pandey
    Assignee: Jitendra Nath Pandey
    Fix For: 0.23.0

    Attachments: HADOOP-7227.2.patch, HADOOP-7227.3.patch, HADOOP-7227.4.patch


    Currently when a proxy is created for a protocol, there is a round trip of messages to check the protocol version. The protocol version is not checked in any subsequent rpc which could be a problem if the server restarts with a new protocol version. This issue and also the additional round-trip at proxy creation can be avoided if we add the protocol version in every rpc, and server checks the protocol version for every call.
    --
    This message is automatically generated by JIRA.
    For more information on JIRA, see: http://www.atlassian.com/software/jira

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postedApr 15, '11 at 12:36a
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