Is the region cache size of the TiKV client allocated by default? Are there parameters to control it?

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This topic has been translated from a Chinese forum by GPT and might contain errors.

Original topic: TiKV cleint的region cache大小是默认分配的吗？是否有参数控制？

| username: alfred

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| username: xfworld | Original post link

Are you asking about size? There are parameters to control it.

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You can check the capacity size occupied by each region here.

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Here are the adjustment parameters related to scheduling.

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| username: HACK | Original post link

He is probably not asking about the size of the region, but rather the cache in the TiDB server.

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| username: alfred | Original post link

The region cache size of the TiKV client module in the TiDB server

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| username: h5n1 | Original post link

It seems that there is no limit on the size of the region cache, and its contents will be cleaned periodically or non-periodically as needed.

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| username: HACK | Original post link

I think this region cache mainly stores the metadata of the region, such as the location of the region and similar information, for use by the TiDB server when accessing data.

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| username: system | Original post link

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