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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ZOOKEEPER-3180) Add response cache to improve the throughput of read heavy traffic
Date Mon, 14 Jan 2019 23:52:00 GMT

    [ https://issues.apache.org/jira/browse/ZOOKEEPER-3180?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16742597#comment-16742597
] 

Hudson commented on ZOOKEEPER-3180:
-----------------------------------

SUCCESS: Integrated in Jenkins build Zookeeper-trunk-single-thread #187 (See [https://builds.apache.org/job/Zookeeper-trunk-single-thread/187/])
ZOOKEEPER-3180: Add response cache to improve the throughput of read … (andor: rev 9828685d20bc99272ec0689a590d27b0f8f7ebb6)
* (edit) zookeeper-server/src/main/java/org/apache/zookeeper/server/ZooKeeperServerMXBean.java
* (edit) zookeeper-server/src/main/java/org/apache/zookeeper/server/FinalRequestProcessor.java
* (edit) zookeeper-server/src/main/java/org/apache/zookeeper/server/NettyServerCnxn.java
* (edit) zookeeper-server/src/main/java/org/apache/zookeeper/server/NIOServerCnxn.java
* (edit) zookeeper-server/src/main/java/org/apache/zookeeper/server/ServerCnxn.java
* (edit) zookeeper-server/src/main/java/org/apache/zookeeper/server/ZooKeeperServerBean.java
* (edit) zookeeper-server/src/main/java/org/apache/zookeeper/server/ZooKeeperServer.java
* (edit) zookeeper-server/src/main/java/org/apache/zookeeper/server/ServerMetrics.java
* (edit) zookeeper-server/src/main/java/org/apache/zookeeper/server/DumbWatcher.java
* (edit) zookeeper-docs/src/main/resources/markdown/zookeeperAdmin.md
* (add) zookeeper-server/src/main/java/org/apache/zookeeper/server/ResponseCache.java
* (edit) zookeeper-server/src/test/java/org/apache/zookeeper/server/MockServerCnxn.java
* (add) zookeeper-server/src/test/java/org/apache/zookeeper/test/ResponseCacheTest.java
* (edit) zookeeper-server/src/test/java/org/apache/zookeeper/test/JMXEnv.java


> 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
>            Assignee: Brian Nixon
>            Priority: Minor
>              Labels: pull-request-available
>             Fix For: 3.6.0
>
>          Time Spent: 4h 40m
>  Remaining Estimate: 0h
>
> 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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