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tikv: update auto compaction config (#21656) (#21726) #21728

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Merged
ti-chi-bot merged 4 commits into from
Sep 4, 2025
Merged

tikv: update auto compaction config (#21656) (#21726) #21728

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22092aa
This is an automated cherry-pick of #21726
ti-chi-bot Sep 4, 2025
d654e75
Discard changes to dynamic-config.md
Oreoxmt Sep 4, 2025
99d2fd0
Discard changes to tikv-configuration-file.md
Oreoxmt Sep 4, 2025
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fix
Oreoxmt Sep 4, 2025
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13 changes: 12 additions & 1 deletion garbage-collection-configuration.md
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Expand Up @@ -106,4 +106,15 @@ show config where type = 'tikv' and name like '%enable-compaction-filter%';
| tikv | 172.16.5.36:20163 | gc.enable-compaction-filter | true |
| tikv | 172.16.5.35:20163 | gc.enable-compaction-filter | true |
+------+-------------------+-----------------------------+-------+
```
```

<CustomContent platform="tidb">

> **Note:**
>
> When using the Compaction Filter mechanism, GC progress might be delayed, which can affect TiKV scan performance. If your workload contains a large number of coprocessor requests and you observe in the [**TiKV-Details > Coprocessor Detail**](/grafana-tikv-dashboard.md#coprocessor-detail) panel that the `next()` or `prev()` call count in **Total Ops Details** significantly exceeds three times the `processed_keys` calls, you can take the following actions:
>
> - For TiDB versions before v7.1.3, it is recommended to disable Compaction Filter to speed up GC.
> - Starting from v7.1.3, TiDB automatically triggers compaction based on the number of redundant versions in each Region [`region-compact-min-redundant-rows`](/tikv-configuration-file.md#region-compact-min-redundant-rows-new-in-v710) and the percentage of redundant versions [`region-compact-redundant-rows-percent`](/tikv-configuration-file.md#region-compact-redundant-rows-percent-new-in-v710) to improve Compaction Filter GC performance. In this case, adjust these configuration items instead of disabling Compaction Filter.

</CustomContent>