feat(streaming): support adaptive backfill rate limit

[MrCroxx]

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What's changed and what's your intention?

WIP

close #16678

slt test

UPDATE: There is some mistakes in the screenshots. I'll fix it and update it later.

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[kwannoel]

May add some demo for it to show it works well.

[MrCroxx]

May add some demo for it to show it works well.

Sure. I'm reading the slts in #16678 to see what scenarios we need to test.

[tabVersion]

I am wondering if cur_barrier_snapshot_processed_rowsa lagging indicator and does not reflect the back pressure rate in time.

[MrCroxx]

I am wondering if cur_barrier_snapshot_processed_rowsa lagging indicator and does not reflect the back pressure rate in time.

I think the problem is tick the rate limiter per barrier. I think it can be refactored to tick for each loop or future selection. 🤔

[kwannoel]

How's it going?

[MrCroxx]

How's it going?

This PR validates the effectiveness and feasibility of the adaptive rate limiter. In order to improve maintainability, I need one to two PRs to refactor the code part of the rate limiter.

PTAL: #19967 🙏