Do not deploy multiple Atlassian applications in a single Tomcat container
Deploying multiple Atlassian applications in a single Tomcat container is not supported. We do not test this configuration and upgrading any of the applications (even for point releases) is likely to break it. There are also a number of known issues with this configuration (see this FAQ for more information).
We also strongly recommend not deploying multiple Atlassian applications to a single Tomcat container for a number of practical reasons. Firstly, you must shut down Tomcat to upgrade any application and secondly, if one application crashes, the other applications running in that Tomcat container will be inaccessible.
Finally, we recommend not deploying any other applications to the same Tomcat container that runs JIRA, especially if these other applications have large memory requirements or require additional libraries in Tomcat's
- JIRA is unable to start.
- Confluence may be unusable. See Confluence Menus Do Not Work, or Confluence Fails to Start when Running in the Same Application Server as JIRA 4.0, 4.0.1 or Crowd 2.0.x.
The error below appears in the logs:
The problem is caused by an incompatible Felix library used by JIRA, Confluence and Crowd when they're running in the same JVM. For example:
The workarounds below may vary across versions, and may or may not work in various combinations. See the Resolution section below for the recommended approach.