Connections should not be cached
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Key: HADOOP-312
URL: http://issues.apache.org/jira/browse/HADOOP-312
Project: Hadoop
Type: Improvement
Components: ipc
Versions: 0.4.0
Reporter: Devaraj Das
Servers and clients (client include datanodes, tasktrackers, DFSClients &
tasks) should not cache connections or maybe cache them for very short periods
of time. Clients should set up & tear down connections to the servers everytime
they need to contact the servers (including the heartbeats). If connection is
cached, then reuse the existing connection for a few subsequent transactions
until the connection expires. The heartbeat interval should be more so that
many more clients (order of tens of thousands) can be accomodated within 1
heartbeat interval.
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