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https://issues.apache.org/jira/browse/POOL-350?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Phil Steitz updated POOL-350:
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Fix Version/s: 2.13
> Add option for not executing "hasBorrowWaiters()" while returning objects
> -------------------------------------------------------------------------
>
> Key: POOL-350
> URL: https://issues.apache.org/jira/browse/POOL-350
> Project: Commons Pool
> Issue Type: New Feature
> Affects Versions: 2.6.0
> Environment: h5. uname -a:
> Linux VMS26239 3.10.0-229.11.1.el7.x86_64 #1 SMP Thu Aug 6 01:06:18 UTC 2015
> x86_64 x86_64 x86_64 GNU/Linux
>
> *Java version:*
> java version "1.8.0_60"
> Java(TM) SE Runtime Environment (build 1.8.0_60-b27)
> Java HotSpot(TM) 64-Bit Server VM (build 25.60-b23, mixed mode)
>
>
> Reporter: zhu chen
> Priority: Critical
> Labels: easyfix
> Fix For: 2.13
>
>
> h2. Phenomena:
> I'm recently leveraging commons-pool as my Redis connection pool in my
> project, however, the pain is that when my system is dealing with over
> thousands of Redises, CPU load become such high. By checking JVM through
> JFR(FlightRecorder), it turned out the hot method was
> "{color:#FF0000}hasBorrowWaiters(){color}", which is invoked by
> "{color:#FF0000}returnObject(){color}" each time.
> That means the system will go through over *thousands*(the number will grow
> as well as my system) of keys after *each* object's *return*, what's worse,
> the program is running concurrently, which, obviously cause a huge CPU load.
>
> h2. Expect:
> I was wondering if we could add a config for optionally run this
> "hasBorrowWaiters()" each time when we return an object.
>
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