topic Using environment variables in log4sas in Administration and Deployment

Using environment variables in log4sas

jklaverstijn — Wed, 07 Mar 2018 09:28:17 GMT

Hi,

I was wondering how to use environment variable values in log4sas. Our use case: place the workspace server logs for different user groups. A user is member of just one, indicated by environment variable TENANT. If I look at the comparable log4j facility there is a possibility to refer to this by ${env.TENANT}. I was hoping for something similar in log4sas like

%S{env.TENANT}

But unfortunately it is not provided.

Am I overlooking something? Is there another way to accomplish the same (short of specifying a separate logconfig.xml for each user group)? Would, if needed, a feature request garner your support?

Kind regards,

- Jan.

Re: Using environment variables in log4sas

Kurt_Bremser — Wed, 07 Mar 2018 09:39:55 GMT

Doesn't

%sysget(TENANT)

do it?

Re: Using environment variables in log4sas

jklaverstijn — Wed, 07 Mar 2018 10:41:59 GMT

Unfortunately not in the logconfig.xml, Kurt. This is not SAS code but XML configuration. Sorry for not being more clearly about this.

Re: Using environment variables in log4sas

PaulHomes — Wed, 07 Mar 2018 11:24:15 GMT

Hi Jan,

I see that documentation for SAS ESP 4.3/5.1 and SAS DataFlux Data Management Server 2.6 have examples of the form %S{OSENV.env_var_name} in their logging XML - e.g. https://support.sas.com/kb/60/591.html

There's another example of it at https://communities.sas.com/t5/SAS-Communities-Library/The-Node-Less-Traveled-Improving-Job-Performance-with-Node/ta-p/221293

I note that OSENV isn't documented as a key for the S Conversion Character in the SAS 9.4 Logging: Configuration and Programming Reference but it'd be worth a try - you never know 🙂

Cheers

Paul

Re: Using environment variables in log4sas

Kurt_Bremser — Wed, 07 Mar 2018 11:33:42 GMT

Ah. The first thing google gave me was the %log4sas autocall macro, so I was thinking SAS code.

Re: Using environment variables in log4sas

PaulHomes — Wed, 07 Mar 2018 22:07:03 GMT

I was curious so I tried it out with the RollingFileAppender FileNamePattern value in a SAS 9.4 M5 Workspace Server logconfig.xml and it seems to work (even though it is not documented). Probably best to ask SAS tech support if it is supported and what SAS versions it works with.