Cloud Dedicated write limit recommendations

[jstirnaman]

This issue is for tracking outcomes and recommendations we can provide to help Cloud Dedicated customers scale or adjust their write workloads to fit their cluster.

Regarding Cloud Dedicated write limits...

After some digging, my understanding, which seems to be inline with the customer's request, is that

• Dedicated doesn't currently return 429. In the same context
• 503 means Ingesters aren't available to handle the data.
• There is ongoing work to address scaling and limiting of writes
• No "cluster-sized" limits or recommendations are provided to customers.

We can eventually incorporate the outcome/findings/guidance from that work to explain how writes and Ingestors are scaled and to make recommendations in the docs.
For now, I'm not sure we can say anything beyond "Try the request again."