Hi, is there a recommendation guide on how to do a production setup for temporal with mysql for High Availability. My initial thought was since all state is preserved in DB, i could possibly have multiple temporal servers pointing to same mysql instance and things should work. But the documents …

High Availability setup is overloaded term. Do you want the ability for temporal service operating during deployments or if some of its nodes fail? Do you want the ability to survive a database host outage? Do you want to be available in the case of a whole region outage? Temporal supports all of t…

To start with i want temporal to survive node fails. I was under the impression that for this, all nodes could just connect to same mysql and nothing else is required. (i mean broadcastaddress,membership settings etc). Is that understanding correct? Also can cross DC replication be done on mysql…

For node failures, the important requirement is that all nodes can talk to each other. We had cases when network policies precluded such connectivity and it caused issues. Then the ports should be specified. The membership is configured automatically through DB. You can look into the helm chart for …

[image] maxim: For node failures, the important requirement is that all nodes can talk to each other. We had cases when network policies precluded such connectivity and it caused issues @maxim Is there a way to reliably verify that all the nodes are able to talk to each other(for ex: status i…

Make sure that the list of hosts from these two commands matches: tctl admin membership list_gossip tctl admin membership list_db

@madhu - Please refer to comment from samar on different roles and the ports that they expose Communication between multiple instances of temporal server

thanks @ganta lemme take a look thanks for pointing to the other thread. :grinning:

Hi, When i run list_gossip it gives me the three hosts in the cluster but when i run tctl admin membership list_db i get an error It looks like it tries to connect to localhost instead of my CASSANDRA_SEEDS etc/temporal # tctl admin membership list_db 2020/11/23 15:37:23 gocql: unable to dial c…

Production HA setup

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madhu July 23, 2020, 2:20pm 8

How do the nodes talk, which protocol, what ports? Is there any document I can refer to?

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