41.10 Commands at a glance

Following are the web cache related commands:

set server [new Http/Server sim s-node]
This creates an instance of an Http server at the specified <s-node>. An instance of the simulator <sim> needs to be passed as an argument.

set client [new Http/Client sim c-node]
This creates an instance of a Http client at the given <c-node>.

set cache [new Http/Cache sim e-node
This command creates a cache.

set pgp [new PagePool/type-of-pagepool]
This creates a pagepool of the type specified. The different types of pagepool currently implemented are:
PagePool/Math, PagePool/CompMath, PagePool/ProxyTrace and PagePool/Client. See section 41.4 for details on Otcl interface for each type of Pagepool.

$server set-page-generator pgp
$server log handle-to-log-file
The above commands consist of server configuration. First the server is attached to a central page pool <pgp>. Next it is attached to a log file.

client set-page-generator \<pgp\>
\$client set-interval-generator \<ranvar\> 
\$client log \<handle-to-log-file\>

These consist configuration of the Http client. It is attached to a central page pool <pgp>. Next a random variable <ranvar> is attached to the client that is used by it (client) to generate intervals between two consecutive requests. Lastly the client is attached to a log file for logging its events.

$cache log log-file
This is part of cache configuration that allows the cache to log its events in a log-file.

$client connect cache
$cache connect server
Once the client, cache, and server are configured, they need to be connected as shown in above commands.

$client start-session cache server
This starts sending request for a random page from the client to the <server> via <cache>.