Speaker
Description
Shoal is a squid cache publishing and advertising tool designed to work in
fast changing environments, consistent of three components - the
shoal-server, the shoal-agent, and the shoal-client.
The purpose of shoal is to have a continually updated list of squid
caches. Each squid runs shoal-agent which uses AMQP messages to
publish its existence and the load of the squid to the central
shoal-server. The shoal-server keeps a list of squids in memory and
removes any squid which has not sent it a message recently. The IPs of all
squid servers are geo-referenced. Clients contact the squid server using a
REST interface to retrieve an ordered list of the nearest squids.
While the initial version was based on Python2, we updated the code to be
compatible with Python3. We also used the opportunity to make large
improvements on the functionality of the different components, especially
testing of squids to be used and using an ordering of squids not only
based on geo-location but also on the accessibility of the squids; the
nearest squid may not be the best squid to use. In addition we also
simplified the configuration of the shoal-client and shoal-agent which
will largely configure itself now.
| Desired slot length | 20min |
|---|---|
| Speaker release | Yes |
