Large Memory Leak when under load or when reloading war through tomcat
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Key: JRUBY-5172
URL: http://jira.codehaus.org/browse/JRUBY-5172
Project: JRuby
Issue Type: Bug
Components: Core Classes/Modules
Affects Versions: JRuby 1.5.3, JRuby 1.5.2, JRuby 1.5.1, JRuby 1.5, JRuby
1.6
Environment: OS Tested:
MacOS X 10.6
CentOS 5.5
Apache Tomcat 6.0.29
jruby: 1.5.2, 1.5.3, jruby-head
java version "1.6.0_20"
Java(TM) SE Runtime Environment (build 1.6.0_20-b02-279-10M3065)
Java HotSpot(TM) 64-Bit Server VM (build 16.3-b01-279, mixed mode)
Reporter: Max M. Murphy
Priority: Blocker
When running a war under tomcat, both after reload and under high load(tomcat
or not) there is a memory leak:
SEVERE: The web application [/jruby-test] created a ThreadLocal with key of
type [null] (value [com.kenai.jaffl.provider.stringi...@ab14733]) and a value
of type [java.lang.ref.SoftReference] (value
[java.lang.ref.softrefere...@7a628653]) but failed to remove it when the web
application was stopped. This is very likely to create a memory leak.
To replicate this error I've included a small rails 3.0.1 app with a war
created by warbler. I'm able to recreate this under load using `ab -c5 -n10
#{app_url}". Looking through the dominator tree in MAT is pointing to RubyHash
and also RubyClass implementations in Jruby.
OS Tested:
MacOS X 10.6
CentOS 5.5
Apache Tomcat 6.0.29
jruby: 1.5.2, 1.5.3, jruby-head
Java:
java version "1.6.0_20"
Java(TM) SE Runtime Environment (build 1.6.0_20-b02-279-10M3065)
Java HotSpot(TM) 64-Bit Server VM (build 16.3-b01-279, mixed mode)
Gemfile contents:
source 'http://rubygems.org'
gem 'rails', '3.0.1'
gem 'activerecord-jdbcmysql-adapter'
gem 'warbler'
I've zipped up the test project I've setup, along with the tomcat logs, eclipse
MAT hprof files, and a war of the app that I've been testing with.
http://dl.dropbox.com/u/8509074/jruby-rails3.zip
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