How to create different log files per process id or session

[learn_SAS_23]

How to create a log file per session with below command with &sysjobid

%let Log_file_name =%sysfunc(compress(%scan(&_program,-1,/)_&sysjobid._%sysfunc(datetime(),b8601dt))).log ;

%let LogOutFile = &Test_path./&Log_file_name.;
filename stplog "&LogOutFile.";
proc printto log=stplog;
run;

But it creates log files , with same sysjobid with different times

Test_STP_8628_20210922T173146.log

Test_STP_8628_20210922T173144.log

In practice , where my program runs   distributed across servers and runs parallel  in same time , Can  &sysjobid will differ and create different log files ? 

[AllanBowe · Accepted solution]

The `sysjobid` is the PID and it CAN be the same across multiple sessions.  

Your question is confusing as you ARE creating different log files per process / session due to the use of a timestamp.  To ensure uniqueness though, you might want to use a random number as well, as shown here:  https://core.sasjs.io/mf__uid_8sas_source.html

For even better uniqueness you can use the `uuidgen()` function as shown in this macro:  https://core.sasjs.io/mf__getuniquename_8sas.html

[learn_SAS_23]

Thanks ,We like to create log file per session (i mean when multiple time client programs calls STP , it should create separate STP log file ) , As the log file available from webserver logs are having less details (we can't able to debug what's wrong with STP) . 

we can create log file with random number from below links 

&today._&now._&sysjobid._%sysevalf(%sysfunc(ranuni(0))*999,CEIL)