Klaros not starting after something happens at midnight

Klaros not starting after something happens at midnight - Klaros Test Management - Forum - Klaros Test Management

Massimo Dulisse, modified 2 Years ago.

Klaros not starting after something happens at midnight

Youngling Post: 1 Join Date: 6/30/22 Recent Posts

Hi there,
I have successfully installed Klaros on a virtual server hosted by Ionos and configured it.

However now something strange is happening - at midnight something happens (I think is Mysql backup); the next morning I find that tomcat is not running and if I restart Klaros I get a SEVERE error message in the logs:

SEVERE [main] org.apache.catalina.core.StandardContext.startInternal One or more listeners failed to start. Full details will be found in the appropriate container log file

A couple of questions:

How can I find which listener is failing?
Why the heck the configuration that was working before midnight isn't working if I try to restart Klaros???

TIA,
Max

Torsten Stolpmann, modified 2 Years ago.

RE: Klaros not starting after something happens at midnight

Jedi Council Member Posts: 763 Join Date: 2/12/09 Recent Posts

Hi Massimo,

Can you please attach the complete log files for analysis?

If this is too big, please feel free to also zip them and send to support@verit.de

Thanks and regards,

Torsten

Torsten Stolpmann, modified 2 Years ago.

RE: Klaros not starting after something happens at midnight

Jedi Council Member Posts: 763 Join Date: 2/12/09 Recent Posts

Hi Massimo,

Thank you for for sending the logs. The relevant log entry can be found here:

	de.verit.klaros.contentrepository.migration.exception.KlarosRepositoryUpgradeException: java.io.IOException: Cannot run program "java": error=2, No such file or directory
	at de.verit.klaros.contentrepository.migration.BaseRepositoryUtil.execute(BaseRepositoryUtil.java:88)

The reason why you see this error is as follows.

During startup, Klaros forks a separate java Process to compact the file repository before the application will start.
In your root environment, java is not available, so the startup will fail with above message.

You rightly may ask, why this is not happening during your initial startup. In this case, the Installer is bringing in it's own Java runtime and a startup initiated from the installer will succeed.

To resolve this, you will need to add a Java runtime to your root account environment.

In standard Linux installations we do this via systemd like shown below:

	[Unit]
	Description=Klaros Testmanagement Service
	After=syslog.target network.target

	[Service]
	Environment="JRE_HOME=/opt/klaros-testmanagement/jre"
	Environment="PATH=/opt/klaros-testmanagement/jre/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin"
	Type=forking
	User=klaros

	ExecStart=/opt/klaros-testmanagement/bin/startup.sh
	ExecStop=/opt/klaros-testmanagement/bin/shutdown.sh

	[Install]
	WantedBy=multi-user.target

This is documented in the user manual here: https://www.klaros-testmanagement.com/files/doc/html/User-Manual.Installation.installAsService.html#User-Manual.Installation.installAsService.Linux

I am unsure about the steps you took in your Container environment. It may be sufficient to install a Java runtime via your package manager.

In case you haven't noticed yet, we also provide ready-made docker images here: https://github.com/klaros-testmanagement/klaros-docker/pkgs/container/klaros.

Please let me know if this helps you succeed or require additional information.

Regards,

Torsten