Hey everyone, I have an issue. We're getting this error: "Unexpected error: ClientError(\'An error occurred (ThrottlingException) when calling the DescribeTasks operation (reached max retries: 4): Rate exceeded\')"

I tried to bump the version of dask to 2021.9.1 and it is giving me back this error:

ImportError: cannot import name 'apply' from 'dask.compatibility' (/usr/local/lib/python3.9/site-packages/dask/compatibility.py)

I have no idea how to handle this

Hey @William Burdett, looks like you have a mapped task and AWS is throttling those API calls. On Cloud we have task concurrency limiting for situations like this so that APIs aren’t called too much. I don’t think bumping the dask version would help? Though I’m not sure that is going on with that error.

This error is showing up in the cloud actually

Task concurrency is not there by default. You have to tag the tasks and then specify the limit for that task tag, and then the submission of those mapped tasks will be limited.

We use pip

This is not quite your issue, but maybe upgrading

distributed

might help also?

So, I added a concurrency limit. Is 20 too high?

I honestly wouldn’t know the AWS limits for that operation. Let me try looking

A lot of our mapping is firing a ton of queries at a snowflake warehouse. So it can handle quite a bit at once

Oh sorry are you using ECS? or is this from creating a Fargate cluster?

Fargate

Am going through this issue

Okay, thank you. I'll reduce that and see where it gets us