Rolling mod_jk log files

Hi All!

I have to compess and roll mod_jk log file every day. The Operating
system is Red Hat Enterprise Linux AS release 4.

I found 2 feasible approaches to do this:

1. Using logrotate utility

/home/x/logs/apache/mod_jk.log {
daily
rotate 5
nomissingok
ifempty
olddir /home/x/logs/apache
create 600 root root
delaycompress
postrotate <--- HERE.. DO WE NEED TO RESTART APACHE?
#/usr/local/apache2/bin/apachectl graceful
# there will be some activity on the saved log, so don't
compress immediately
# if you want to compress, sleep for 600
endscript
}

This works fine except that I am not sure about the postrotate section.
Is it imperative that I need to restart yapache in the post rotate
section? What happens if I dont restart apache at the end? This can be
critical because these are production nodes and we cannot take downtime
on these servers.


2. Using JkLogFile directive

JkLogFile "|/usr/local/apache/bin/rotatelogs
/home/x/logs/apache/mod_jk.log.%Y-%m-%d-%H_%M_%S 86400"

Questions:
a. When will this get kicked off?
b. Can I/How do I implement compression of mod_jk.log file along with
this?

Thanks for your answers in advance.

Shekar