ticdc: add scheduler.region-count-per-span in v8.5.4 release notes#21508
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ticdc: add scheduler.region-count-per-span in v8.5.4 release notes#21508hfxsd wants to merge 4 commits intopingcap:masterfrom
scheduler.region-count-per-span in v8.5.4 release notes#21508hfxsd wants to merge 4 commits intopingcap:masterfrom
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Synced from: pingcap/docs#22688 Target PR: pingcap#21508 AI Provider: gemini Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
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[APPROVALNOTIFIER] This PR is NOT APPROVED This pull-request has been approved by: The full list of commands accepted by this bot can be found here. DetailsNeeds approval from an approver in each of these files:Approvers can indicate their approval by writing |
hfxsd
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Apr 3, 2026
Oreoxmt
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Apr 3, 2026
| | TiKV | <ul><li>[`region-compact-check-interval`](https://docs.pingcap.com/zh/tidb/v8.5/tikv-configuration-file#region-compact-check-interval)</li><li>[`region-compact-check-step`](https://docs.pingcap.com/zh/tidb/v8.5/tikv-configuration-file#region-compact-check-step)</li><li>[`region-compact-min-tombstones`](https://docs.pingcap.com/zh/tidb/v8.5/tikv-configuration-file#region-compact-min-tombstones)</li><li>[`region-compact-tombstones-percent`](https://docs.pingcap.com/zh/tidb/v8.5/tikv-configuration-file#region-compact-tombstones-percent)</li><li>[`region-compact-min-redundant-rows`](https://docs.pingcap.com/zh/tidb/v8.5/tikv-configuration-file#region-compact-min-redundant-rows-从-v710-版本开始引入)</li><li>[`region-compact-redundant-rows-percent`](https://docs.pingcap.com/zh/tidb/v8.5/tikv-configuration-file#region-compact-redundant-rows-percent-从-v710-版本开始引入) </li></ul>| 废弃 | 由 [`gc.auto-compaction`](https://docs.pingcap.com/zh/tidb/v8.5/tikv-configuration-file#gcauto-compaction) 配置组替代，用于控制自动 compaction 行为 [#18727](https://github.com/tikv/tikv/issues/18727) @[v01dstar](https://github.com/v01dstar) | | ||
| | TiKV |[`gc.auto-compaction`](https://docs.pingcap.com/zh/tidb/v8.5/tikv-configuration-file#gcauto-compaction) 配置组包括：<ul><li>[`gc.auto-compaction.check-interval`](https://docs.pingcap.com/zh/tidb/v8.5/tikv-configuration-file#check-interval-从-v757-和-v854-版本开始引入)</li><li>[`gc.auto-compaction.tombstone-num-threshold`](https://docs.pingcap.com/zh/tidb/v8.5/tikv-configuration-file#tombstone-num-threshold-从-v757-和-v854-版本开始引入)</li><li>[`gc.auto-compaction.tombstone-percent-threshold`](https://docs.pingcap.com/zh/tidb/v8.5/tikv-configuration-file#tombstone-percent-threshold-从-v757-和-v854-版本开始引入)</li><li>[`gc.auto-compaction.redundant-rows-threshold`](https://docs.pingcap.com/zh/tidb/v8.5/tikv-configuration-file#redundant-rows-threshold-从-v757-和-v854-版本开始引入)</li><li>[`gc.auto-compaction.redundant-rows-percent-threshold`](https://docs.pingcap.com/zh/tidb/v8.5/tikv-configuration-file#redundant-rows-percent-threshold-从-v757-和-v854-版本开始引入)</li><li>[`gc.auto-compaction.bottommost-level-force`](https://docs.pingcap.com/zh/tidb/v8.5/tikv-configuration-file#bottommost-level-force-从-v757-和-v854-版本开始引入)</li></ul> | 新增 | 该配置组用于控制自动 compaction 行为 [#18727](https://github.com/tikv/tikv/issues/18727) @[v01dstar](https://github.com/v01dstar) | | ||
| | TiFlash | [`flash.graceful_wait_shutdown_timeout`](https://docs.pingcap.com/zh/tidb/v8.5/tiflash-configuration#graceful_wait_shutdown_timeout-从-v854-版本开始引入) | 新增 | 控制 TiFlash 优雅关闭的最长等待时间（秒），默认为 `600` 秒。当关闭 TiFlash 时，TiFlash 会继续执行尚未完成的 MPP 任务，但不再接收新的 MPP 任务。如果所有 MPP 任务在此超时时间前完成，TiFlash 将立即关闭；否则将在等待时间结束后强制关闭。[#10266](https://github.com/pingcap/tiflash/issues/10266) @[gengliqi](https://github.com/gengliqi) | | ||
| | TiCDC | [`scheduler.region-count-per-span`](https://docs.pingcap.com/zh/tidb/v8.5/ticdc-changefeed-config#region-count-per-span-从-v854-版本开始引入) | 新增 | 在 [TiCDC 新架构](https://docs.pingcap.com/zh/tidb/v8.5/ticdc-architecture) 中引入。在 Changefeed 初始化阶段，满足拆分条件的表会按照该参数进行拆分。拆分后，每个子表最多包含 `region-count-per-span` 个 Region。默认值为 `100`。 | |
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| | TiCDC | [`scheduler.region-count-per-span`](https://docs.pingcap.com/zh/tidb/v8.5/ticdc-changefeed-config#region-count-per-span-从-v854-版本开始引入) | 新增 | 在 [TiCDC 新架构](https://docs.pingcap.com/zh/tidb/v8.5/ticdc-architecture) 中引入。在 Changefeed 初始化阶段，满足拆分条件的表会按照该参数进行拆分。拆分后，每个子表最多包含 `region-count-per-span` 个 Region。默认值为 `100`。 | | |
| | TiCDC | [`scheduler.region-count-per-span`](https://docs.pingcap.com/zh/tidb/v8.5/ticdc-changefeed-config#region-count-per-span-从-v854-版本开始引入) | 新增 | 在 [TiCDC 新架构](https://docs.pingcap.com/zh/tidb/v8.5/ticdc-architecture)中引入。在 Changefeed 初始化阶段，满足拆分条件的表会按照该参数进行拆分。拆分后，每个子表最多包含 `region-count-per-span` 个 Region。默认值为 `100`。 | |
Oreoxmt
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Apr 3, 2026
[LGTM Timeline notifier]Timeline:
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hongyunyan
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@hongyunyan: adding LGTM is restricted to approvers and reviewers in OWNERS files. DetailsIn response to this: Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository. |
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scheduler.region-count-per-spanin v8.5.4 release notes docs#22688Do your changes match any of the following descriptions?