Hi,
I am facing an issue the “Tomcat” service is running high CPU (99%) everytime visit to none admin pages in JIRA. If I go to admin pages then the CPU usage is dropping to 1-2%.
Please note that, I am using Apache 2.2 as a web server, its connecting to AJP port 8009 via http.
JIRA version 5.0.2
O/S: Windows 2008 Server R2
Database Server : MS SQL 2008 R2
I can’t find the any information on the log file. Could you please help us!
Thanks
Ganga S
In the event of high CPU consumption by Tomcat, you can create a few thread dumps, and check the output in the log. This is how to do it - http://confluence.atlassian.com/display/JIRA/Generating+a+Thread+Dump
If you need assistance to review the thread dumps, you can contact Altassian Support. Remember to attach the logs as well.
hi,
thanks for the suggestion, I will follow the instruction to creation thread dump and send it Atlassian support.
Could you please let me, why it is high CPU consumption, if I use below setting?
<Connector port="8009" enableLookups="false" redirectPort="8443" protocol="AJP/1.3" minProcessors="5" maxProcessors="200" acceptCount="50" debug="0" connectionTimeout="0" />
but no issues, if I use the below setting
<Connector port="8009" redirectPort="8443" enableLookups="false" protocol="AJP/1.3" URIEncoding="UTF-8"/>
Ganga S
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We have similar issue, can you update us about your finding and solution.
Regards,
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its very easy to promote a DOS attack to JIRA server.
I face this trouble for at least 4 years... already contacted Atlassian support, and local consultant partners for on site health check analysis.
The answer for this problem always is: upgrade.
so when you do an upgrade, and have same problem, then always there is a new version, s othe answer is, upgrade... it is an infinite loop.
ok.. try jira 8... have the same problem, and then Atlassian will ask to pay for a datacenter.
the real problems is ; JAVA
the second one: TOMCAT
but ok, for 99,9% os customers that user only 10 fields an jira default workflow will never have any problem.
for 0.1% pay for a datacenter and start to pray.. no money back if do not work.
that's the way to become millionaire !
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The minProcessors and maxProcessors parameters are deprecated. I suggest you look here - http://tomcat.apache.org/tomcat-5.5-doc/config/http.html#Standard_Implementation
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after I have changed the AJP reverse proxy settings in JIRA server.xml, then the tomcat service is running normal.
This settings has an issue, the CPU usage for tomcat always 100%
<Connector port="8009" enableLookups="false" redirectPort="8443" protocol="AJP/1.3" minProcessors="5" maxProcessors="200" acceptCount="50" debug="0" connectionTimeout="0" />
Then I have changed to this settings, the CPU usage for tomcat normal and jira running without any issues.
<Connector port="8009" redirectPort="8443" enableLookups="false" protocol="AJP/1.3" URIEncoding="UTF-8"/>
Could you tell me, what are the issues in the settings?
Thanks
Ganga S
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