Ling Jin

[DNM] kvclient(ticdc): debug empty region

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### What problem does this PR solve? Issue Number: close #xxx ### What is changed and how it works? ### Check List #### Tests - Unit test - Integration test...

cdc: make mq encoding protocol related more clear

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### First-time contributors' checklist - [x] I've signed [**Contributor License Agreement**](https://cla-assistant.io/pingcap/docs) that's required for repo owners to accept my contribution. ### What is changed, added or deleted? (Required) ### Which...

cdc: add more detail about the authorization

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### First-time contributors' checklist - [x] I've signed [**Contributor License Agreement**](https://cla-assistant.io/pingcap/docs-cn) that's required for repo owners to accept my contribution. ### What is changed, added or deleted? (Required) ### Which...

cdc: make mq encoding protocol related more clear

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### First-time contributors' checklist - [x] I've signed [**Contributor License Agreement**](https://cla-assistant.io/pingcap/docs-cn) that's required for repo owners to accept my contribution. ### What is changed, added or deleted? (Required) ### Which...

For some specific CPU, the CPU usage is quite high even though there is no too much workload. The problem comes from the hardware layer, some arm CPU cannot works...

[DNM]consumer(ticdc): debug consumer

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### What problem does this PR solve? Issue Number: close #xxx ### What is changed and how it works? ### Check List #### Tests - Unit test - Integration test...

kvclient, schemaStorage(ticdc): simplify the logs and refactor schema storage initialization

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### What problem does this PR solve? Issue Number: close #11788 ### What is changed and how it works? * add more field to the log when the ddl is...

cdc: add description about the tidb extension field

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### First-time contributors' checklist - [x] I've signed [**Contributor License Agreement**](https://cla-assistant.io/pingcap/docs-cn) that's required for repo owners to accept my contribution. ### What is changed, added or deleted? (Required) ### Which...