[KARAF-3482] 100% cpu usage

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: cellar-3.0.1, cellar-2.3.4
• Fix Version/s: cellar-3.0.2, cellar-2.3.5
• Component/s: cellar

Environment

Karaf
Karaf version: 3.0.2
OSGi Framework: org.apache.felix.framework - 4.2.1

JVM
Java Virtual Machine: Java HotSpot(TM) 64-Bit Server VM version 25.25-b02
Version: 1.8.0_25
Vendor: Oracle Corporation
Operating system
Name: Linux version 3.16.0-23-generic
Architecture: amd64
Processors: 4

• Assignee: Jean-Baptiste Onofré
• Reporter: Thiago Souza
• Created: 27/Jan/15 12:48
• Updated: 13/Sep/18 13:06
• Resolved: 30/Jan/15 07:08

Description

I'm seeing constant 100% cpu usage after installing cellar.
Steps to reproduce:

1. Download Karaf 3.0.2
2. Run bin/karaf
3. Run feature:repo-add mvn:org.apache.karaf.cellar/apache-karaf-cellar/3.0.1/xml/features
4. Run feature:install cellar cellar-eventadmin

After this, cpu usage goes near 100% and won't drop.
After setting DEBUG log I see tons of:
2015-01-27 10:45:38,388 | DEBUG | Thread-45 | configadmin | 6 - org.apache.felix.configadmin - 1.8.0 | getProperties()
2015-01-27 10:45:38,388 | DEBUG | Thread-45 | configadmin | 6 - org.apache.felix.configadmin - 1.8.0 | getProperties()
2015-01-27 10:45:38,388 | DEBUG | Thread-45 | configadmin | 6 - org.apache.felix.configadmin - 1.8.0 | getProperties()
2015-01-27 10:45:38,388 | DEBUG | Thread-44 | configadmin | 6 - org.apache.felix.configadmin - 1.8.0 | getProperties()
2015-01-27 10:45:38,388 | DEBUG | Thread-45 | configadmin | 6 - org.apache.felix.configadmin - 1.8.0 | getProperties()
2015-01-27 10:45:38,388 | DEBUG | Thread-45 | configadmin | 6 - org.apache.felix.configadmin - 1.8.0 | getProperties()
2015-01-27 10:45:38,388 | DEBUG | Thread-47 | configadmin | 6 - org.apache.felix.configadmin - 1.8.0 | getProperties()
2015-01-27 10:45:38,388 | DEBUG | Thread-45 | configadmin | 6 - org.apache.felix.configadmin - 1.8.0 | getProperties()
2015-01-27 10:45:38,388 | DEBUG | Thread-45 | configadmin | 6 - org.apache.felix.configadmin - 1.8.0 | getProperties()
2015-01-27 10:45:38,388 | DEBUG | Thread-44 | configadmin | 6 - org.apache.felix.configadmin - 1.8.0 | getProperties()
2015-01-27 10:45:38,388 | DEBUG | Thread-45 | configadmin | 6 - org.apache.felix.configadmin - 1.8.0 | getProperties()
2015-01-27 10:45:38,388 | DEBUG | Thread-45 | configadmin | 6 - org.apache.felix.configadmin - 1.8.0 | getProperties()
2015-01-27 10:45:38,388 | DEBUG | Thread-47 | configadmin | 6 - org.apache.felix.configadmin - 1.8.0 | getProperties()
2015-01-27 10:45:38,388 | DEBUG | Thread-45 | configadmin | 6 - org.apache.felix.configadmin - 1.8.0 | getProperties()
2015-01-27 10:45:38,389 | DEBUG | Thread-45 | configadmin | 6 - org.apache.felix.configadmin - 1.8.0 | getProperties()
2015-01-27 10:45:38,389 | DEBUG | Thread-44 | configadmin | 6 - org.apache.felix.configadmin - 1.8.0 | getProperties()
2015-01-27 10:45:38,389 | DEBUG | Thread-45 | configadmin | 6 - org.apache.felix.configadmin - 1.8.0 | getProperties()
2015-01-27 10:45:38,389 | DEBUG | Thread-45 | configadmin | 6 - org.apache.felix.configadmin - 1.8.0 | getProperties()
2015-01-27 10:45:38,389 | DEBUG | Thread-47 | configadmin | 6 - org.apache.felix.configadmin - 1.8.0 | getProperties()

Notes:
This does not happens with cellar 3.0.0
I could also reproduce it with Java 7