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From "Raghu Angadi (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-6132) RPC client opens an extra connection for VersionedProtocol
Date Mon, 20 Jul 2009 22:35:14 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-6132?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12733381#action_12733381

Raghu Angadi commented on HADOOP-6132:

sure. That is fine. If someone actually ends up using the interface, they will be similarly
surprised. But for now I guess it is fine. If we want to fix it, we need to make the interface
take class object as one of the arguments (since that is part of definition of what a connection


> RPC client opens an extra connection for VersionedProtocol
> ----------------------------------------------------------
>                 Key: HADOOP-6132
>                 URL: https://issues.apache.org/jira/browse/HADOOP-6132
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: ipc
>            Reporter: Kan Zhang
>            Assignee: Kan Zhang
>         Attachments: 1.patch, 2.patch
> RPC client caches connections per protocol. However, since all of our real protocols
are subclasses of VersionedProtocol, a bug in the implementation makes the client opens an
extra connection just for the VersionedProtocol, which is not needed.

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