Minimize broadcasts or eliminate the use of multicast altogether!

jerluc / pir

A simple multicast LAN discovery library

Apache License 2.0

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Minimize broadcasts or eliminate the use of multicast altogether! #3

Open jerluc opened 9 years ago

jerluc commented 9 years ago

Unfortunately, as more nodes enter the group, the multicast broadcast becomes incredibly chatty; for a group of size N, the number of simultaneous broadcasts is NxN!

Some ideas:

Look into a protocol like SWIM, which was built specifically to solve this problem by using a kind of healthchecking randomization to probabilistically reduce the network chattiness

jerluc commented 9 years ago

Maybe an easy switch to at least reduce the noisiness of the broadcast could be made by using something like mDNS?

Hashicorp's implementation (forked here due to lack of Go 1.5 support in the Hashicorp implementation)