IPC server should not allocate a buffer for each request
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Key: HADOOP-2975
URL: https://issues.apache.org/jira/browse/HADOOP-2975
Project: Hadoop Core
Issue Type: Improvement
Components: ipc
Affects Versions: 0.16.0
Reporter: Hairong Kuang
Fix For: 0.17.0
Currently the IPC server allocates a buffer for each incoming request. The
buffer is thrown away after the request is serialized. This leads to very
inefficient heap utilization. It would be nicer if all requests from one
connection could share a same common buffer since the ipc server has only one
request is being read from a socket at a time.
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