We have a cluster of 7 nodes with client file services and coordination service ensemble deployed.
Only the Initial node had issues with the window server went down for about an hour and a half, along with the licensing manager and all processes on the node. All other nodes were fine and al processes were running.
As soon as it went down, the tableau server became inaccessible, eventhough coordination service is there and all other nodes are running. I thought there is atleast 72 hours grace period for the server to continue running when license manager goes down.
Tableau Server Version: 2023.3.1 (20233.23.1227.1336)
Is it the expected behavior ? or Is there something broken in the configuration? and anywhere I can check to see what went wrong ?
Thanks in advance!
@Bobo Oo
A load balancer is a system/service/app that distributes incoming network traffic across multiple gateways to ensure no single server becomes overwhelmed. This distribution optimizes resource use, maximizes throughput, minimizes response time, and avoids overloading any single server.
If you don't have a Load Balancer, then all the load is going to the initial node, and therefore all the requests begin their process at the initial node.
It is not part of the Tableau Software. You provide the Load Balancer Software/Hardware, and then configure Tableau to use it:
https://help.tableau.com/current/server/en-us/distrib_lb.htm
https://help.tableau.com/current/server/en-us/proxy.htm
Probably a network team would be needed. Tableau recommends a round robin configured LB:
Traffic Distribution:
- Round Robin: Distributes requests sequentially across the pool of servers.
- Least Connections: Sends traffic to the server with the fewest active connections.
- IP Hash: Assigns a hash of the client’s IP address to route traffic to the same server consistently.
- Weighted Distribution: Uses server weights to send more traffic to more powerful servers.
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Regards,
Diego Martinez
Tableau Visionary and Forums Ambassador
