If you discovered that Confluence died without manual intervention, there may be something goes wrong during a local Java session. Java will produce a log file that looks like the following:
The location of this log file is usually in the directory where Tomcat is run eg.
/bin folder. For Windows Services, it should be located in where Windows Services are run, eg.
c:\Windows\System32 if you are on 32 bit.
Useful VM Option
If using Java 6 or above, it's possible to define the path to the
Add the following JVM Parameter to your existing ones: