SkyCache, Inc., conquering the world wide wait.

SKYCACHE RELEASE 1.0 CONFIGURATION SPECIFICATIONS

Configuring SkyCache with Inktomi

Compatible/Recommended Version: Traffic Server version 2.0

Hardware Notes

Inktomi Traffic Server currently supports the following platforms:

UltraSPARC systems with Solaris 2.6
Alpha systems with Digital ALPHA UNIX 4.0D
SGI Systems (MIPS R10000) with IRIX 6.5

As with other software cache solutions, we recommend at least 256MB RAM and 16GB of disk.

Peering with the SkyCache CA

To peer the SkyCache CA with the Inktomi Traffic Server, you will need to configure settings within the 'Protocol' and 'Routing' menus in the web configuration interface.

The SkyCache CA listens to port 3134 for http requests, and 3132 for icp requests.

Within the 'Routing' menu:

Set the 'ICP enabled' toggle switch to On

Set the 'ICP Query Timeout' to 2 seconds

Within the 'ICP Peers' section under the 'Routing' menu:

Enter the SkyCache CA hostname in the 'Hostname' box
Set the 'Type' to 2
Set the proxy port to 3134, and the ICP port to 3132

Apply these changes, then go to the 'Protocols' menu:

Set 'Consult ICP on a miss' to On

Notes

To verify that you are receiving objects properly from the SkyCache feed, look in the HTTP logs and verify that objects that are requested from the SkyCache CA are being retrieved with a retrieval method of SIBLING_HIT. If objects are being retrieved directly and not via the SkyCache CA, you will want to make sure your peering with the SkyCache CA is setup properly.

Statistics about hit rates and performance within the web management interface will be tainted by the SkyCache feed, due to the method involved in getting objects into the cache. Counters for hit rate percentages in particular will appear much lower than their actual value. To get accurate numbers for cache performance, logs will need to be pulled from the server and post-processed with connections from the SkyCache CA removed.

Additional Resources Inktomi web site: http://www.inktomi.com
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