This function checks whether a job is running for the profile with name a.

If this is the case, the return value is "true", otherwise "false".

Important note: If a load balancing system is in use, only this node here is checked (i.e. the node on which you use this function). That means that a running profile on another node would not be found with the function. For many (but not all) Input Agents, you can force a profile to start on a specific node and thus avoid this issue.