Process application crashes JBoss EAP 7

Camunda 7 Topics Discussion & Questions
1

We are configuring Camunda Embedded deployment model for the camunda engine on JBoss EAP 7 according to the below guide. [ with heading : Required Setup for Wildfly / JBoss EAP 7 ]

Camunda expects the properties to be defined as below in standalone.xml
<property name=“lockTimeInMillis” value=“300000”/>

whereas, the above reference for JBoss EAP 7 mention to define the property as below
300000

After configuring the properties with the later format, Jboss EAP is working fine. But when we are trying to deploy the camunda invoice example process application on JBoss EAP 7, below sceanrio is noticed post deploying the process app :
the format is again changed as “<property name=“lockTimeInMillis” value=“300000”/>” in standalone.xml which is not expected by Jboss EAP 7 and hence JBoss EAP 7 is crashed.

This issue is happened with community release of camunda.

Please provide your support here.

2

It seems you’re using JBoss EAP 7.1 which is based on WildFly 11.
You need to use Camunda’s wildfly11 distribution.

3

Thanks for the update langfr.

We are using Camunda 7.8.0 on JBoss EAP 7.1.
According to the below documentation, there is a support of camunda 7.8 with JBoss EAP 7.0.
https://docs.camunda.org/manual/7.8/introduction/supported-environments/

Could you clarify whether camunda 7.8.0 is supported on JBosss EAP ?.

Thanks
Senthil

4

Unfortunately Camunda 7.8.0 and JBoss EAP 7.1 do not fit together.
You have to downgrade JBoss EAP to 7.0 or wait a few days until Camunda 7.9.0 will be released (May, 31).
Camunda 7.9.0 includes support for Wildfly 11 which is the open source base for JBoss EAP 7.1.

JBoss has changed the way they serialize properties between Wildfly 10 (WildFly-Core 2.x) and 11 (WildFly-Core 3.x).
You can start JBoss EAP 7.1 with camunda once. But a restart fails, because of the wrong format in standalone.xml file. like you described in your original post.

Relevant tasks:
https://app.camunda.com/jira/browse/CAM-8600
https://app.camunda.com/jira/browse/CAM-8670

5

Thanks langfr for your detailed reply. I will check with JBoss EAP 7.0 and update the status here.

Thanks
Senthil

6

Thanks langfr for your detailed reply. We have verified JBoss EAP 7.0 with Camunda 7.8.0 and it works fine.

Thanks,
Tanvi

7

Hi langfr,

Camunda 7.8.0 is working fine with JBoss EAP 7.0.
Thanks for your help.

Thanks
Senthil