The hard-coded cache contains information about the group memberships for internal processing, such as Access control instructions (ACIs). By default, the group membership cache is enabled.

The information about this cache logs to the standard output log server.out and the standard error log. When using groups, use the log information to tune the server for best performance. At startup, the server logs a message to the server.out log.

The following is a sample standard output log.

[16/Aug/2011:17:14:39.462 -0500] category=JEB severity=NOTICE msgID=1887895587
msg="The database cache now holds 3419MB of data and is 32 percent full"

The following is a sample error log.

[16/Aug/2011:18:40:39.555 -0500] category=EXTENSIONS severity=NOTICE msgID=1880555575 
msg="'Group cache (174789 static group(s) with 7480151 total memberships and 1000002 
unique members, 0 virtual static group(s), 1 dynamic group(s))' currently consumes 
149433592 bytes and can grow to a maximum of 149433592 bytes"