We need to figure out what to do for Tracker upgrade to artifact 0.2. The _Tracker application has to be redeployed (Current applications deleted and redeploy _Tracker with the new artifact). Ideally this should be done in the upgrade tool.
Plan of attack: As part of the upgrade tool, do the following once CDAP has been shut down
1. Remove the _Tracker application from all namespaces, leaving the datasets
2. Install the new Jar in the /artifacts dir
The user will be responsible for re-enabling tracker in any namespaces. The metrics will not take into account the existing audit log messages.