Hi,
Could you make a thread dump when the platform begins to slow (http://qa.netbeans.org/bugzilla/generating-thread-dumps.html). You can also launch JConsole http://java.sun.com/j2se/1.5.0/docs/guide/management/jconsole.html in order to see if there is some issues with the garabage collection (perhaps something is leaking memory and you have less and less memory... so much and much more garbage collections which take all your CPU time).
Regards, Stéphane At 20:43 20.02.2007, you wrote:
We've recently started having stability issues with our production server. Below is our current configuration. Note, we upgraded to this configuration about a month ago. Additional information on what was upgraded can be provided if needed. - Jahia 4.1.1 - MySQL 5.0.27 - Apache 2 w/mod_jk - Redhat ES 4 Below are some of the symptoms we are seeing: - High Java CPU usage - Slow site navigation In almost all cases these symptoms result in us having to restart jahia to clear them up. Below are some of the errors we are seeing in our catalina.out error log. 4622665 [Ajp13Processor[8009][227]] ERROR - Error writing cache output, IOException generated error ClientAbortException: java.net.SocketException: Write failed: Broken pipe 4622758 [Ajp13Processor[8009][227]] ERROR - Error ClientAbortException: java.net.SocketException: Write failed: Broken pipe 4622995 [Ajp13Processor[8009][227]] ERROR - ERROR : OperationsManager.handleOperations, Error writing cache content to writer ClientAbortException: java.net.SocketException: Write failed: Broken pipe 4623369 [Ajp13Processor[8009][227]] ERROR - Throwable Exception caught in Jahia servlet : javax.servlet.ServletException: org.jahia.exceptions.JahiaException: OperationsManager.handleOperations, Error writing cache content to writer, root cause:null root cause=ClientAbortException: java.net.SocketException: Write failed: Broken pipe javax.servlet.ServletException: org.jahia.exceptions.JahiaException: OperationsManager.handleOperations, Error writing cache content to writer, root cause:null root cause=ClientAbortException: java.net.SocketException: Write failed: Broken pipe 4643217 [Ajp13Processor[8009][227]] ERROR - Error writing cache output, IOException generated error ClientAbortException: java.net.SocketException: Write failed: Broken pipe 5971223 [Ajp13Processor[8009][53]] ERROR - Cannot draw add container launcher org.jahia.exceptions.JahiaSessionExpirationException: 503 - session expired, 503 - Session Expiration 5972183 [Ajp13Processor[8009][53]] ERROR - Root cause : Error while forwarding the Engine /jsp/jahia/templates/onqlegrand/onqlegrand_templates/onq_product_category.js p : getAttribute: Session already invalidated -> BAILING OUT java.lang.IllegalStateException: getAttribute: Session already invalidated Any help on what could be causing these errors would be greatly appreciated. Thanks, Tim Pyle -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.412 / Virus Database: 268.18.3/693 - Release Date: 19.02.2007
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