Log file specified by gemfire.log-file never gets created

Question

I have a web application hosted in Tomcat that uses a Geode cache but I cannot get Geode to produce a log file. The cache and properties, including the log-file property, are created programmatically. I see some Geode logging in the Tomcat stdout and it seems to confirm the log-file property has been set:

....
13:30:43,149 | INFO  | [LoggingSession] | Startup Configuration:
### GemFire Properties defined with system property ###
conserve-sockets=false
### GemFire Properties defined with api ###
....
log-disk-space-limit=0
log-file=/local/install/user1/config/Lev1/Web/WebAppServer/Server1_1/logs/gemfire.log
log-file-size-limit=0
log-level=config
....

However, the file specified never gets created.

I have tried setting the file permissions to 777 on that directory, as well as setting the log-level to 'fine' but neither made a difference. The Geode output only shows up in the stdout, which I believe is the default.

Why isn't the log file specified by the log-file property getting created?