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

[Administrator - libre.audio]

Thanks Jan this is helpful and much appreciated!.

Mike

On July 25, 2024 4:27:17 AM EDT, Jan Friesse <jfriesse at redhat.com> wrote:
>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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>> 
>> 
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