Issue Summary

Currently Bamboo remote agent perform the Removing obsolete workspace process and the Build process via the same thread. 

This can cause an issue if the Removing obsolete workspace is running for a long time.

The agent will not pick the build and will show as Idle on the Bamboo server, this can create confusion for the customers as they won't be aware what the agent is doing in the background and why it's not picking up builds inspite of being Idle.

The problem persists even if the agent is restarted until Removing obsolete workspace is completed. 

Solution

Segregate the threads which performs Removing obsolete workspace and building the Jobs so that they can happen in parallel or

Provide a solution where agent restart should prioritise builds rather then Removing obsolete workspace background Job.