Fangmin Lv created ZOOKEEPER-3180:
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Summary: Add response cache to improve the throughput of read
heavy traffic
Key: ZOOKEEPER-3180
URL: https://issues.apache.org/jira/browse/ZOOKEEPER-3180
Project: ZooKeeper
Issue Type: Improvement
Components: server
Reporter: Fangmin Lv
Fix For: 3.6.0
On read heavy use case with large response data size, the serialization of
response takes time and added overhead to the GC.
Add response cache helps improving the throughput we can support, which also
reduces the latency in general. This Jira is going to implement a LRU cache for
the response, which shows some performance gain on some of our production
ensembles.
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