How do i get the username under which a process is executing?

PBM

Hi, I am relatively new to RapidMiner and currently using it to load data to RedShift. 
I need to log the username under which a process is executing. I will later on log that username and datetime in a log table. 
I have trouble getting the username as a macro. I got some reference that I maybe able to use %{_ra_user}  but I get an error that _ra_user is unknown. Any guidance or working sample process would be appreciated.

Thank You

MartinLiebig

Hi @PBM ,

usually you just create a macro called _ra_user and populate it with a predefined name, e.g. your rm server user name. then you can run it.

if another user runs this process on server, this macro gets overriden right when the process starts.

Best,

Martin

Edin_Klapic

Hi @PBM

If you add the Macro to the Process context you can assign a default value. It will automatically be overwritten when someone runs the process on Server.

For debugging you could add the Operator "Print to Console" and enter the Macro there. This Operator actively writes to the Log in RapidMiner Studio / Server and the JobAgent processes.

Happy Mining,

Edin

Papad

Hi @PBM ,
I recommend you to check this:
https://docs.rapidminer.com/latest/studio/getting-started/macros.html
It is about how to use macros. Generally you can find lot of things explained into DOCS.
Hope it helps.

MartinLiebig

Hi,

_ra_user is only available if you run processes on server.

Best,

Martin

PBM

Hi,

If _ra_user is only available on server, I believe I will have to use error handling when I am in development mode and using RM Studio. I will try it.

Thank You

PBM

I used the handle exception operator and it works fine for now. Then I will test on server later. Will check also to give it default value, if that allows me to avoid error handling.

Thanks