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From "Sandeep Shankar Harikrishnan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (KARAF-3482) 100% cpu usage
Date Mon, 09 Feb 2015 22:36:35 GMT

    [ https://issues.apache.org/jira/browse/KARAF-3482?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14313033#comment-14313033
] 

Sandeep Shankar Harikrishnan commented on KARAF-3482:
-----------------------------------------------------

Hi Jean,
Thanks for handling this issue.

I think the issue is still persisting with Karaf Cellar 2.3.4
I downloaded the latest code for 2.3.4 today and confirmed if you code changes are there.
But my cpu utilization reaches 98% in just 20 seconds after i installed cellar-eventadmin

After sometime it prints the below messages on the console and the cpu utilizations comes
down to 8%

karaf@root> 'org.apache.felix.eventadmin.impl.adapter.LogEventAdapter$1@8632ad6' is removed
as a LogListener, since it threw an exception.
java.lang.OutOfMemoryError: GC overhead limit exceeded


- Sandeep Shankar Harikrishnan

> 100% cpu usage
> --------------
>
>                 Key: KARAF-3482
>                 URL: https://issues.apache.org/jira/browse/KARAF-3482
>             Project: Karaf
>          Issue Type: Bug
>          Components: cellar-core
>    Affects Versions: cellar-3.0.1, cellar-2.3.4
>         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
>            Reporter: Thiago Souza
>            Assignee: Jean-Baptiste Onofré
>             Fix For: cellar-3.0.2, cellar-2.3.5
>
>
> 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



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