Configure Event Polling Interval about graphql-engine HOT 5 OPEN

@raphaeltm you can configure the event polling interval by setting HASURA_GRAPHQL_EVENTS_FETCH_INTERVAL env var.

More details - https://hasura.io/docs/latest/event-triggers/observability-and-performance/#performance-tuning

if we don't have any events in Hasura, does the poller turn off

Yes. If there are no events, then the event poller is not started.

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@raphaeltm ah! Support for this env var is missing on the cloud dashboard. Let me get back to you on this.

But you should be able to use it in your local dev or self-hosted instances, till we add support for this on the cloud dashboard. I'll keep you posted on it.

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I would also like to clarify something: if we don't have any events in Hasura, does the poller turn off, and will our database usage drop down? My assumption is yes. But I don't know if Hasura does other things that might be problematic and keep the database awake in a serverless database environment.

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@ecthiender amazing, thanks! I don't know why I had so much trouble finding that. It's quite clear.

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@raphaeltm you can configure the event polling interval by setting HASURA_GRAPHQL_EVENTS_FETCH_INTERVAL env var.

More details - https://hasura.io/docs/latest/event-triggers/observability-and-performance/#performance-tuning

if we don't have any events in Hasura, does the poller turn off

Yes. If there are no events, then the event poller is not started.

@ecthiender FYI, I tried to configure this in Hasura Cloud and it won't let me. The value shows up in red and the "add" button is disabled as you can see in the following screenshot (I don't know if this comment should be in another location):

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