also to this point - what happens if one of the Tableau Worker Nodes just restarts (Windows crash or something)? Does the HA mode recover itself w/o needing to do anything with the TabAdmin command?
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You have a question on restarting a worker node that is part of a cluster. I'll try to answer a few of them.
- You cannot restart an individual worker node through tabadmin commands
- tabadmin will stop/start/restart commands will restart the entire cluster and not only one node in the cluster
- if the worker node, windows server, were to restart as in a Windows reboot for example, then as long as the Tableau services restart successfully then the worker node will join the cluster
- regarding questions on quorum, you need a minimum of 3 nodes to meet the high availability requirements. you can read more on the online help
You mentioned there was a node that was not responding to some requests, these customized admin views may also be of use to monitor the system: Tableau Zen: Custom Tableau Server Admin Views