number of connections created has crossed more than maxActive
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Key: POOL-107
URL: https://issues.apache.org/jira/browse/POOL-107
Project: Commons Pool
Issue Type: Bug
Affects Versions: 1.3
Environment: OS:Red Hat Enterprise Linux AS release 4 (Nahant Update 2)
uname:Linux 2.6.9-22.ELsmp #1 SMP Mon Sep 19 18:32:14 EDT 2005 i686
vm_info: Java HotSpot(TM) Server VM (1.4.2_13-b06) for
linux-x86, built
on Oct 18 2006 09:55:11 by unknown with unknown compiler
Reporter: Bhaskar NA
Fix For: 1.3
I found that when the minIdle is configured then during loads, common pool
creates more number of connections it will be greater than maxActive.
When I had following settings:
maxActive = 50
maxIdle = 30
minIdle=30
factory=org.apache.commons.dbcp.BasicDataSourceFactory
maxWait=10000
timeBetweenEvictionRunsMillis=900000
numTestsPerEvictionRun=50
minEvictableIdleTimeMillis=1800000
testWhileIdle=true
testOnBorrow = true
validationQuery='select 1 from dual'
Number of connections in the pool went upto 121. (found thru netstat)
When I changed minIdle to 15 and did my load test connecitons in the pool went
upto 66
Looks like maxActive is getting bypassed with minIdle.
When I changed minIdle to 10 and maxActive to 30 and maxIdle to 30 then number
of connections went upto 40.
Can someone please throw light on what is going on here? I am using DBCP 1.2.1
and common pool 1.3.
Bhaskar
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