apache / apache/hudi

Add RLI access cache to support efficient lookup

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#17,697 0 comments 0 reactions 1 assignee Claimed by @cshuo View on GitHub
type:devtask
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Java
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Description

### Task Description

**What needs to be done:**

- [ ] Add the basic cache layer abstraction
- [ ] Introduce hotspot entries cache: cache A
- [ ] Introduce inflight entries cache(for uncommitted checkpoint): cache B
- [ ] Introce smart eviction strategy for cache A & B
- [ ] support point queries with optional mini-batch access(one access with a set of keys)
- [ ] add tests

**Why this task is needed:**

ms level point query access is required for streaming, otherwise it's very prone to trigger backpressure then volatility of the pipeline.

### Task Type

Code improvement/refactoring

### Related Issues

**Parent feature issue:** (if applicable )
#17647

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