confluence does not start, have to kill application running at port 8000 and restart confluence

[hadi.ariakia]

Hello,

This a frustrating error, confluence keeps failing to start property after rebooting our server.

We are running confluence/ Jira/ Bitbucket on a redhat server.

After reading the log files and doing lots of research I found that I need to I have to stop the confluence, kill an application that listens to port 8000 which was java, then restart confluence, and it works, but until next time we restart the server. 

To solve the problem, we change the Tom Cat port to 8001 by following this link:

https://confluence.atlassian.com/kb/ports-used-by-atlassian-applications-960136309.html

We reboot the system and it worked once, but only once and then we faced the same issue again.

now we should kill the application run port 8001, restart the confluence manually again!

The interesting part is that the error, which is shown on confluence web page, seems to be irrelevant,  

[Deepanshu Natani · Accepted solution]

Hi @hadi.ariakia 

This might occur if the Confluence instance was not stopped properly. And its a possibility that a previous instance of Confluence is also running.

Can you check that multiple Confluence instances are not running in your scenario?

[hadi.ariakia]

Hello @Deepanshu Natani 

You are exactly right. I have no idea how two confluence service files have ended up to exist in one server! The both files were identical. In fact, one confluence is installed, but two service files and two instances were being created at the startup. To solve the problem I just deleted one service file manually, reboot the server and now everything works as intended. Thanks again mate.