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https://issues.apache.org/jira/browse/HADOOP-7012?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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tom liu updated HADOOP-7012:
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Summary: IPC.Client may have some connections for each given host/port
(was: IPC.Client may have some connection for each a given host/port)
> IPC.Client may have some connections for each given host/port
> -------------------------------------------------------------
>
> Key: HADOOP-7012
> URL: https://issues.apache.org/jira/browse/HADOOP-7012
> Project: Hadoop Common
> Issue Type: Improvement
> Components: ipc
> Environment: JDK1.6.0_17/Tomcat6
> Reporter: tom liu
>
> ipc.Client class holds connection pool, that connection would be reused for a
> given host/port.
> and WritableRpcEngine holds Client pool, that client would be reused for a
> given SocketFactory.
> so, RPC.getProxy method returns proxy object, that only hold one connection
> or socket connected to a host/port, if or not, we create many proxy objects.
> if large requests are sent to RPC Server through proxy, the request would be
> wait long time to be sent.
> i think, for each host/port, ipc.Client would hold many connections.
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