Logging operator executions

nico_timotius

Hi RapidMiner Community,

I've managed to deploy my process into a web service using RapidMiner Server. I think it will be beneficial if the web service can have a log just like a log4j. I am thinking to create a log for the web service so it will show something like this

INFO [2019-03-29 14:55:56] Start A Prediction Process

INFO [2019-03-29 14:55:56] Input Data : {AAAA,BBBB}

信息(2019-03-29 14:55:56)预处理数据

INFO [2019-03-29 14:55:59] Load Model

ERROR [2019-03-29 14:55:59] SomethingWrongWithTheModelException

INFO [2019-03-29 14:55:59] End A Prediction Process

I think it will be helpful to solve issues found if the web service used in a production environment. I am aware there are log related operators such as Log, Log to Data but it can only manage to capture one information from an operator.

Do you have any suggestion of ways to achieve that kind of need?

Thank you

TN

IngoRM

Hi,

The process below shows an example about how to use both logging mechanisms. You can see the result if you activate the "Log" panel in the menu "View" - "Show Panel...". I also used some macros in those messages to demonstrate how to create those dynamically.

The only thing I would like to add is that I personally would prefer

operator.getLogger().log(Level level, String text);

instead of the getLog() method Martin has mentioned. But both should work.

Hope this helps,
Ingo

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MartinLiebig

Hi,

i think Print to Console is the operator doing what you want. We use also log4j if i see this correctly for our own logging. You can also use the logging system with execute script. Just do

operator.getLog().log(String message, Integer Level) 

for this.

Best,
Martin

nico_timotius

Hi Martin,

Thanks for the answer. I don't think i managed to use the mentioned operator properly. Is there any tutorial? I can't find the tutorial on the operator.

Best,

TN

nico_timotius

Hi Mr Ingo and Mr Martin,


Thanks for the help. What a great community

Best Regards,

TN