pingcap / pingcap/tidb

The sync load could not decrease to zero, even though there is no stats cache eviction at all

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#65,050 2 comments 0 reactions 0 assignees View on GitHub
affects-8.5 component/statistics severity/moderate sig/planner type/bug
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Description

## Bug Report

Please answer these questions before submitting your issue. Thanks!

### 1. Minimal reproduce step (Required)

Image

Image

As you can see, there is no stats cache eviction at all, yet it continued to attempt a sync load after the workload had been running for 24 hours.

### 2. What did you expect to see? (Required)

The sync load QPS should gradually drop to 0.

### 3. What did you see instead (Required)

It continued to try to sync loads.

### 4. What is your TiDB version? (Required)

v8.5.4,master

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