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Dataflow Gen 2 - Pre-login Handshake Error
I’m running into a persistent issue with Dataflows Gen2 in Microsoft Fabric and I’m hoping someone here has seen this before. Whenever I try to open, preview, or refresh a Dataflow Gen2 that read...
Hi MWC914,
I've never seen this in Fabric, but if I dig back into my SQL Server brain, the semaphore wait is a memory wait, a process is waiting for RAM to be available to allocate to the query.
Is your lakehouse being slammed? What does it look like in the DMVs?
I wonder if your existing processes are holding the memory utilization at 100% which is preventing any new connections.
If you start a new pipeline that connects to copy data, what happens?
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