F5 BIG-IP WebAccelerator Daemons (11.x)

This page applies to BIG-IP^® 11.x. For information about other versions, refer to the following pages:

For information about daemons from other modules, refer to the following pages.

When the BIG-IP system is licensed with BIG-IP WebAccelerator^™, the BIG-IP system runs an additional set of processes on top of the standard set of BIG-IP processes. The following table lists the core BIG-IP WebAccelerator processes, and indicates the impact to the BIG-IP WebAccelerator operation if the process is not running:

Overview of BIG-IP WebAccelerator Daemons (11.x)
Daemon	Description	Impact if not running	Relevant log files
wamd	Performs core acceleration tasks—caching, image optimization, PDF linearization, invalidation, and stats reporting.	HTTP traffic acceleration halts entirely.	/var/log/wa/wamd.log
datastor	Manages on-disk cached content.	Cached objects are inaccessible; acceleration stops.	/var/log/datastor
mysqld	The MySQL database stores the following WebAccelerator information: Performance report data Note: This daemon may be shared by other BIG-IP services.	The system will not log performance data. The BIG-IP WebAccelerator system will continue to process traffic.	/var/lib/mysql/mysqld.err

Starting and stopping BIG-IP WebAccelerator processes

You can use the command line to manage the BIG-IP WebAccelerator processes on the BIG-IP system. To stop, start, or restart all BIG-IP WebAccelerator processes, use the following syntax with the bigstart command:

bigstart

In this syntax, note the following:

refers to the action for bigstart, such as stop, start, or restart.
is the name of the BIG-IP WebAccelerator process.

Note: For information about using the bigstart utility, refer to the bigstart man page or K4080: Adding and removing services included in the bigstart process.