JMX Wildfly 8.2.0 Final

[luka11]

Hello,

Last week I managed to configure monitoring Wildfly 8.2.0 Final thrue JMX with Zabbix java gateway.  After 3 days of monitoring Wildfly used all Heap Memory and hanged. After restart everything was normal, all application was working normal. And then after 3 days again same problem Wildfly used all Heap Memory. In server.log I get error:

2014-12-05 06:47:32,970 ERROR [io.undertow.request] (XNIO-1 I/O-2) Undertow request failed HttpServerExchange{ GET /}: java.lang.OutOfMemoryError: Java heap space

2014-12-05 06:50:19,636 ERROR [stderr] (Remoting "oraprod01:MANAGEMENT" task-1) Exception in thread "Remoting "server1:MANAGEMENT" task-1" java.lang.OutOfMemoryError: Java heap space

It loks like that JMX requests are filling memory, and Wildfly does not releasing memory as you can see on Zabbix graph used Heap Memory is growing slowly :

I came across same behavior with Jboss 7.1.1.

Is this known problem with JMX?

Thanks and best regards!

Luka

[jaikiran]

Perhaps this https://issues.jboss.org/browse/WFCORE-288?

[pmm]

I would recommend to make a heap dump (eg. with VisualVM, jmap or jcmd) and then analyze it using a tool like Eclipse MAT or YourKit.

[luka11]

Thanks Jaikiran for tip, I add to start system property:-Djboss.remoting.pooled-buffers=false

in friday and restarted server. Since then Heap Memory is stable.

Thanks and best regards!

Luka

[phsnake]

Hi Luca, I'm trying several days to connect WildFly to Zabbix, and I found this article that you manged to do it. Is there any chance to help me with that almost impossible think (at least for me). Thank you in advance. feel free to contact me via email(or gtalk) phsnake78(at)gmail.com.

[aswinmohanan]

Hello Luka,

Can you please let me know, how to open remote JMX port on Wildfly 8.2 to monitor via zabbix? My server is centos and I am only using standalone-full.xml

I am monitoring Activmq jmx via zabbix but stuck with Wildfly.

Any suggestions or reference would be appreciated!