Jianyuan Jiang

frontier(ticdc): fast check if region is split or merged when forwarding resolvedTs

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### What problem does this PR solve? Issue Number: close #7281 ### What is changed and how it works? using map cached all region spans, when forwarding a span, check...

fast check if region is split or merged when forwarding resolvedTs

add log rate limit for table actor

gc(ticdc): add min service gc safe point metrics

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### What problem does this PR solve? Issue Number: ref #10463 ### What is changed and how it works? ticdc uses min service gc safe point to check whether data...

test(ticdc): add pulsar mtls integration test

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### What problem does this PR solve? Issue Number: close #10653 ### What is changed and how it works? add pulsar mtls integration test ### Check List #### Tests -...

（WIP)*(ticdc): remove cdc context

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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...

ticdc: Add kafka eof troubleshooting

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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...

sink(ticdc): add ut case for open protocol

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### What problem does this PR solve? Issue Number: close #11012 ### What is changed and how it works? add ut case for open protocol to cover case when `output-old-value`...

add ut case for open protocol to cover case when `output-old-value is disabled` and `delete-only-output-handle-key-columns` is enabled

*(ticdc): Cp 10832 to release 7.5

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### What problem does this PR solve? Issue Number: close #10845 ### What is changed and how it works? This PR initiates the processor before ticking it. These changes can...