In a Saas app, we want order imports to run in serial for each tenant. But multiple order imports can run concurrently for different tenants (up to a point). Then also runs other types of jobs that again I’d like to run serially by tenant, but multiple tenants can run concurrently.

i.e.

OrderImportServer – max 20 workers total

• Tenant1q_OI – runs serial
• Tenant2q_OI – runs serial
• Tenant3q_OI – runs serial

OrderReleaseServer – max 20 workers total

• Tenant1q_OR – runs serial
• Tenant2q_OR – runs serial
• Tenant3q_OR – runs serial

How can you accomplish this in Hangfire?

We’re using Asp.Net and Hangfire version 1.8.11 utilizing SQL Server for hangfire storage.

I was hoping I could set a WorkerCount by server to indicate the max number of concurrent jobs running and then have queues inside the server that run serially (i.e. max of 1 worker per queue), but I’m unclear it the latter is possible. i.e. if I set a server to use 4 workers, and only 1 queue has 10 enqueued jobs, I’m afraid the queue will then run jobs 1 – 4 in parallel, which I don’t want.

Is there a way to accomplish this desired result? Perhaps using a Server per tenant that has 1 WorkerCount and then limit the max concurrent jobs via the [MaximumConcurrentExecution][1]?

OrderImportTenant1Server

• OIT1Q

OrderImportTenant2Server

• OIT2Q

OrderReleaseTenant1Server

• ORT1Q

OrderReleaseTenant2Server

• ORT2Q

This just seems like a lot of servers with 1 queue each…not sure that matters from a technical perspective, it just seems easier to think of a “Server” as a job type (Order Import vs Order Release) and then have queues by tenant within them.