BLACK ZONE alert on Stopping Tomcat Server
I have configured multiple tomcat servers on a remote linux machine, and monitors linux applications through Virtuozzo. When I shutdown the TomcatA while TomcatB is running, the Virtuozzo shows the Black Zone alert (indicating that linux server is in serious state, related to system memory). Similarly when I shutdown TomcatB while TomcatA is running, the same problem occurs. But when the one Tomcat server is already stopped, and other Tomcat server is shutdown, then no problem occurs. Any clue, that why Black Zone alert occurs.or the Tomcat servers uses each other resources while being shutdown. Any help will be appreciated -- View this message in context: http://www.nabble.com/BLACK-ZONE-alert-on-Stopping-Tomcat-Server-tp17597316p17597316.html Sent from the Tomcat - User mailing list archive at Nabble.com. - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: BLACK ZONE alert on Stopping Tomcat Server
Hi Ghulam, Virtuozzo, is an OS level based VPS. Which means available system resources are shared between the VPS. During Shutdown, a Java process is created; this in turn utilizes a burst of RAM. So at that moment you have 3 JVMs running - TomcatA, TomcatB, and ShutdownA. That 3rd JVM may be stretching the available resources on your System. Now after TomcatA is completely shutdown, when you go to shutdown TomcatB, at that particular moment you have 2 JVMS (TomcatB,ShutdownB), which your system is able to easily handle. It is essentially a matter of available system RAM. You may want to increase the RAM. Ghulam_Hussain wrote: I have configured multiple tomcat servers on a remote linux machine, and monitors linux applications through Virtuozzo. When I shutdown the TomcatA while TomcatB is running, the Virtuozzo shows the Black Zone alert (indicating that linux server is in serious state, related to system memory). Similarly when I shutdown TomcatB while TomcatA is running, the same problem occurs. But when the one Tomcat server is already stopped, and other Tomcat server is shutdown, then no problem occurs. Any clue, that why Black Zone alert occurs.or the Tomcat servers uses each other resources while being shutdown. Any help will be appreciated -- Regards Gabe Wong NGASI AppServer Manager JAVA AUTOMATION and SaaS Enablement http://www.ngasi.com NEW! 8.1 - Centrally manage Application Servers across multiple physical servers - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: BLACK ZONE alert on Stopping Tomcat Server
Is there any way to tune and or configure the individual VPS parameters to respect JVM memory parameters ? for example JAVA_OPTS could be -Xms256m -Xmx512m -XX:MaxPermSize=512m (for example the equivalent VMWare configuration settings) http://kb.vmware.com/selfservice/microsites/search.do?cmd=displayKCdocType=kcexternalId=1004059sliceId=1docTypeID=DT_KB_1_1dialogID=67462400stateId=0%200%2067460275 Thank You Martin __ Disclaimer and confidentiality note Everything in this e-mail and any attachments relates to the official business of Sender. This transmission is of a confidential nature and Sender does not endorse distribution to any party other than intended recipient. Sender does not necessarily endorse content contained within this transmission. Date: Mon, 2 Jun 2008 08:05:37 -0700 From: [EMAIL PROTECTED] To: users@tomcat.apache.org Subject: Re: BLACK ZONE alert on Stopping Tomcat Server Hi Ghulam, Virtuozzo, is an OS level based VPS. Which means available system resources are shared between the VPS. During Shutdown, a Java process is created; this in turn utilizes a burst of RAM. So at that moment you have 3 JVMs running - TomcatA, TomcatB, and ShutdownA. That 3rd JVM may be stretching the available resources on your System. Now after TomcatA is completely shutdown, when you go to shutdown TomcatB, at that particular moment you have 2 JVMS (TomcatB,ShutdownB), which your system is able to easily handle. It is essentially a matter of available system RAM. You may want to increase the RAM. Ghulam_Hussain wrote: I have configured multiple tomcat servers on a remote linux machine, and monitors linux applications through Virtuozzo. When I shutdown the TomcatA while TomcatB is running, the Virtuozzo shows the Black Zone alert (indicating that linux server is in serious state, related to system memory). Similarly when I shutdown TomcatB while TomcatA is running, the same problem occurs. But when the one Tomcat server is already stopped, and other Tomcat server is shutdown, then no problem occurs. Any clue, that why Black Zone alert occurs.or the Tomcat servers uses each other resources while being shutdown. Any help will be appreciated -- Regards Gabe Wong NGASI AppServer Manager JAVA AUTOMATION and SaaS Enablement http://www.ngasi.com NEW! 8.1 - Centrally manage Application Servers across multiple physical servers - To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] _ Keep your kids safer online with Windows Live Family Safety. http://www.windowslive.com/family_safety/overview.html?ocid=TXT_TAGLM_WL_Refresh_family_safety_052008
