IPC.Client may have some connection for each a given host/port
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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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