[ClusterLabs] Totems and Tokens and Kronosnet, oh my!

[Jan Friesse]

On 24/07/2024 01:22, Mike Holloway via Users wrote:
> Hi folks,
> 
> Writing up an article which is near ready to publish and I want to make sure the terms I seek to elaborate upon are as accurately conveyed as possible.
> 
> To that end, my current task is to understand "totem" vs "token" and how this relates to 

Quite user friendly description of Totem and Token is 
https://discourse.ubuntu.com/t/corosync-and-redundant-rings/11627

the protocol for consensus in modern Corosync (Post-RHEL 6), as distinct 
(if I grok) from the transport protocol "kronosnet".

kronosnet from corosync pov is "just" another transport protocol. 
Corosync (historically) supported udp multicast, udp unicast and 
infiniband for sending/receiving packet to/from wire. Kronosnet is used 
same way - for sending/receiving packets.

> 
> Could someone help me out by shedding light on the difference between the "token" in circulation, whether a "totem" concept of some sort is still valid, and how this all relates to modern Pacemaker-Corosync HA clusters?
There is really no difference from very high level of view.

Honza

> 
> Thanks,
> Mik
> 
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