Need help for workers2.properties file

[EPC <ep...@rediffmail.com>]

Hi,

I'm using mod_jk2 with Tomcat 5 (Alpha) & Apache 2, running 
successfully.
But regarding the "workers2.properties" file I have few queries. 
It would be great, if you can comment on them.

[shm]
file=${serverRoot}/logs/shm.file
size=1048576
Q : What exactly above line indicates ? What this *size* indicates 
? What is a *shm* file ?


[channel.socket:localhost:8009]
Q : Are there any other types of communication options available ? 
Are the square brackets part of syntax ?


[ajp13:localhost:8009]
channel=channel.socket:localhost:8009
Q : Is it a right way to declare a *tomcat worker* ? Are any 
additional options available ?


[uri:/jsp-examples/*]
worker=ajp13:localhost:8009
Q : Typically is it a correct way to put URI mappings ?


It would be a *great* help, if someone can put a sample 
"workers2.properties" file contents with comments.

TIA & Regards,
-EPC
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