Re: Multiple Instances on one server with Java 11

2022-07-11 Thread Iván Fernández Calvo
If you issue is the memory, it is time to check the garbage collector you are using, check that you are not using deprecated JVM flags, IIRC the garbage collector used by JDK 11 is G1 and should perform better than default JDK8 defaults. Regards Ivan Fernandez Calvo > El 11 jul 2022, a las

Re: Multiple Instances on one server with Java 11

2022-07-11 Thread Matt Wilson
ooo... you may have nailed it there. I was definitely over the 75%. I bumped up my overall system RAM, and then locked in the one site that isn't used too much to a lower value. Its early, but so far no crashes. Interesting that Java 8 never had an issue with this, but 11 clearly is.

Re: Multiple Instances on one server with Java 11

2022-07-11 Thread Ivan Fernandez Calvo
If there are three different Apache Tomcat instances running three different services on Java 11, the only explanation to make one crash that comes to my mind is the resources of the machine, memory in particular. The recommendation is to not use more than 75% of the memory of the host to the

Re: Multiple Instances on one server with Java 11

2022-07-11 Thread Matt Wilson
Sorry, should have mentioned that. This is running on RHEL 7, and there are no indications of anything in the logs. Just an abrupt stop. I could probably turn on some more verbose logging though. On Monday, July 11, 2022 at 10:40:08 AM UTC-4 slide wrote: > Is there any crash log in either

Re: Multiple Instances on one server with Java 11

2022-07-11 Thread Alex Earl
Is there any crash log in either the apache or jenkins logs? I would look for exception dumps in the logs, it might help narrow down where the issue is occurring. On Mon, Jul 11, 2022 at 5:35 AM Matt Wilson wrote: > For a few years I've been running multiple (independent) Jenkins instances > on

Multiple Instances on one server with Java 11

2022-07-11 Thread Matt Wilson
For a few years I've been running multiple (independent) Jenkins instances on one server. Each server runs under its own apache instance. SiteA SiteB SiteC This has worked perfectly fine for a few years with no problems. Last week I upgraded all three servers to 2.346.1. two of the three