Install and setup Confluence Trial meets Error HTTP Status 500

[Stinson]

I installed the trial Confluence in centos6.8. Then I opened browser to set up it. After I inputed authorization Code and clicked 'next', it seems confluence wants to install embedded DB.

Then I got a HTTP 500 Error page:

HTTP Status 500 – Internal Server Error
Type Exception Report

Message Cannot call sendError() after the response has been committed

Description The server encountered an unexpected condition that prevented it from fulfilling the request.

... ...

What does it mean 'Our installers come with all the bits and pieces you need to run the application' in https://confluence.atlassian.com/doc/installing-a-confluence-trial-838416249.html?

[Nic Brough -Adaptavist-]

You'll need to read the application log to find the details of the underlying error.

But I would check you are using the right version of java first, as the wrong version is one of the things I know can cause this sort of error.  Try running Confluence and check with "ps -ef" where the java it runs is, then run that java with "java --version" to see what it is.

The "our installers" thing means that you don't need to do anything to prepare a system for a Confluence install if you use the (later) installers, as they bundle and install the right version of Java and all the other stuff you might want.  (This is better for most than the .zip or .tar.gz installs I tend to use, because you don't have to configure or install anything)

[Stinson]

when I uninstalled confluence and deleted its data dir. Then I installed MySQL, installed confluence using MySQL but not embedded database. Finally, I got it. It seems that using the embedded database has some problems?

[Nic Brough -Adaptavist-]

Yes, the embedded database can fail catastrophically, without warning.  It's rare that it will do it on initial start but certainly possible.

However, running with a proper database seems to be working, so I'm not going to chase a broken unsupported database (I've lost many of them, but I've never intende to try to keep them intact!)