Jason Kace created HADOOP-13144:
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Summary: Enhancing IPC client throughput via multiple connections
per user
Key: HADOOP-13144
URL: https://issues.apache.org/jira/browse/HADOOP-13144
Project: Hadoop Common
Issue Type: Improvement
Components: ipc
Reporter: Jason Kace
Priority: Minor
Fix For: 2.8.0
The generic IPC client ({{org.apache.hadoop.ipc.Client}}) utilizes a single
connection thread for each {{ConnectionId}}. The {{ConnectionId}} is unique to
the connection's remote address, ticket and protocol. Each ConnectionId is 1:1
mapped to a connection thread by the client via a map cache.
The result is to serialize all IPC read/write activity through a single thread
for a each user/ticket + address. If a single user makes repeated calls
(1k-100k/sec) to the same destination, the IPC client becomes a bottleneck.
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