Recreating Azure Service Fabric cluster after deallocating VMSS

nbmjhk 1 Reputation point
2020-06-05T18:46:28.39+00:00

Hello,

I have a question regarding recreating Azure Service Fabric Cluster. Assume that I had a running service fabric cluster(e.g. 5nodes) and later I deallocated Virtual Machine Scale Set. Can I just run again VMSS and my cluster should be working? I know that deployed applications will disappear and I will have to redeploy them. But, will cluster be in proper state?
Is it supported scenario to re-run VMSS with SF and use it?

I found here: https://learn.microsoft.com/en-us/azure/service-fabric/service-fabric-cluster-capacity#the-durability-characteristics-of-the-cluster

"Regardless of any durability level, Deallocation operation on VM Scale Set will destroy the cluster"

Will "Start" operation re-create my cluster? I know that on VMSS is SF extension for bootstrapping vms.
I tried it once and it seems to be working but I don't know if it's good practice.

Azure Service Fabric
Azure Service Fabric
An Azure service that is used to develop microservices and orchestrate containers on Windows and Linux.
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  1. vipullag-MSFT 23,946 Reputation points Microsoft Employee
    2020-06-30T07:40:08.947+00:00

    @nbmjhk

    Apologies in delayed response.

    As you mentioned that you deallocated the Cluster's Manage Nodes, Did you only have the one VMSS?

    If the answer is yes, then you’ve just lost the Cluster’s Quorum ( essentially the Cluster’s brains ), so the “cluster” is pretty much dead.

    Can you check if the Cluster is functional as expected.

    Thanks.

    Please 'Accept as answer' if it helped, so that it can help others in the community looking for help on similar topics.

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