[Linux-cluster] Multicast for GFS?

[Lazar Obradovic]

It took some time... 

Attached is the patch for correcting cman_tool join into ipv4 mcast
group. 

Note to ipv6 developers / users: you may also need to set mcast ttl to
higher value via setsockopt() if you want to have cluster with network
traversing L3 devices, since linux default ttl is set for local scope
(ttl = 1), which would make first router drop the packet. 

-- 
Lazar Obradovic, System Engineer
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