I am sorry, I sent the same file twice. Here is the other one.
*Josep M Beleta* *Director de Tecnologia* Carver Advanced Systems, S.L. París, 184. 4º 08036 - Barcelona Tel: 93 238 5880 Fax: 93 238 5881 *segueix-nos <http://www.linkedin.com/company/carver-advanced-systems-s.l.>* <http://twitter.com/#%21/carver_as> <https://plus.google.com/112583630853594851700?prsrc=3> www.carver-as.com 2016-04-12 20:49 GMT+02:00 Josep M Beleta <bel...@carver-as.com>: > Hi Mark, thanks a lot. > > here come the dumps: > > Josep > > > *Josep M Beleta* > > *Director de Tecnologia* > > > Carver Advanced Systems, S.L. > París, 184. 4º 08036 - Barcelona > > > Tel: 93 238 5880 > Fax: 93 238 5881 > > *segueix-nos > <http://www.linkedin.com/company/carver-advanced-systems-s.l.>* > <http://twitter.com/#%21/carver_as> > <https://plus.google.com/112583630853594851700?prsrc=3> > > www.carver-as.com > > > 2016-04-12 20:43 GMT+02:00 Mark Thomas <ma...@apache.org>: > >> On 12/04/2016 19:30, Josep M Beleta wrote: >> > Hi, >> > >> > I need some help with a problem we have running Tomcat 8, with Java 8 on >> > a Windows 2008 R2 Standard with Service Pack 1 running as a virtual >> > machine on top of ESXi, 5.1.0. The virtual machine has 16 GB of memory >> > and 4 CPUs. The physical host computer has lots of memory and is not >> > stressed at all. >> > >> > One week ago our Tomcats, we have two, began to use high CPU. When the >> > problem started we had no made any change we can remember in the >> > preceding week, and no Windows update was installed. >> > >> > We use two Tomcats, one of them with some in-house applications the >> > other one with Jira. Both began to shows the same symptoms roughly at >> > the same time. >> > >> > The Jira Tomcat version is 8.0.17 and runs with Java 1.8.0_51 64 Bit, >> > the other Tomcat is 8.0.33 and runs over Java 1.8.0_77 64 Bit. >> > >> > These are the facts we can summarize: >> > >> > 1. Now we run only the Tomcat for our in-house applications.We stopped >> > the Jira one. >> > 2. We run it as a service. >> > 3. Every time, two hours after launching the Tomcat service, the CPU >> > use jumps to 70-75% and some time after (one hour more) it reaches >> > 100 %. More threads are allocated using lots of CPU. The final >> > result is our entire system being degraded as time goes on. >> > 4. The problems has nothing to do with our applications. We undeployed >> > them with the same result. >> > 5. We tested versions 8.0.23 and 8.0.33 in our internal Tomcat with the >> > same results. >> > 6. We tested JVM 1.8.0_66, 1.8.0_71 and 1.8.0_77 with the same results. >> > 7. We have changed some JVM parameters, allocating more heap memory, or >> > changing GC methods with always the same result, 100% CPU. >> > 8. Using jstack we take several thread dumps that we are enclosing in >> > this message. Dump75 is whe the CPU was at 75 %, the other one, >> > Dump100, the CPU was at 100%. >> > 9. I am attaching the Process Explorer images of the Tomcat process >> > showing also the Tomcat threads. I am including a Tomcat manager >> > screenshot showing the status of the server. >> > >> > Any help would be deeply appreciated, >> >> We really need to see those thread dumps. I've checked the list config >> and plain text files should be allowed through. I'm attaching a test >> file to this message to confirm that. If it comes through, please >> provide your thread dumps in plain text form and we can take a look. >> >> Mark >> >> >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org >> For additional commands, e-mail: users-h...@tomcat.apache.org >> > >
--------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
