Flow Run page becomes unresponsive with complex long-running flows

[j-tr]

First check

• [X] I added a descriptive title to this issue.
• [X] I used the GitHub search to find a similar issue and didn't find it.
• [X] I refreshed the page and this issue still occurred.
• [X] I checked if this issue was specific to the browser I was using by testing with a different browser.

Bug summary

We occasionally have flows that run with multiple thousand tasks for multiple days. When viewing these flows or tasks from these flows, the UI becomes unresponsive as soon as the canvas for the flow graph visualization appears and the browser crashes shortly after. This makes it impossible to browse log messages for these flows.

The flow run visualization could be deactivated by default for flows with a large number of tasks or long-running flows.

Reproduction

Let a flow with a large number of tasks run for a long time.

Error

freeze, very high cpu usage, browser crash, no specific error message.

Browers

• [X] Chrome
• [X] Firefox
• [ ] Safari
• [ ] Edge

Prefect version

cloud

Additional context

No response

[zhen0]

@brandonreid - any thoughts on this one? Does it make sense to add something like a toggle for flow runs that go over the number of task runs we can confidently support?