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docs: fix outdated Region size in TiDB Cloud glossary #24205

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docs: fix outdated Region size in TiDB Cloud glossary #24205

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2 changes: 1 addition & 1 deletion tidb-cloud/tidb-cloud-glossary.md
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Expand Up @@ -154,7 +154,7 @@ Currently, only the following types of TiDB Cloud resources support the Recycle

- TiDB Region

The basic unit of data in TiDB. TiKV divides the Key-Value space into a series of consecutive Key segments, and each segment is called a Region. The default size limit for each Region is 96 MB and can be configured.
The basic unit of data in TiDB. TiKV divides the Key-Value space into a series of consecutive Key segments, and each segment is called a Region. The default size limit for each Region is 256 MiB and can be configured.

@coderabbitai coderabbitai Bot Oct 7, 2026

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🎯 Functional Correctness | 🟡 Minor | ⚡ Quick win

Describe 256 MiB as the estimated split target, not the size limit.

region-split-size estimates the size of a newly split Region. The separate region-max-size threshold defaults to region-split-size / 2 * 3—384 MiB when the split size is 256 MiB.

    The basic unit of data in TiDB. TiKV divides the Key-Value space into a series of consecutive Key segments, and each segment is called a Region. The default estimated target size for a newly split Region is 256 MiB and can be configured.


### replica

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