Ryan Leung

Merge pending processed region list

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## Enhancement Task We have many extra lists to store the regions that we want to check with the higher priority in every round of patroling region. It's duplicated and...

*: persist region leader

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### What problem does this PR solve? Issue Number: ref #7897. ### What is changed and how does it work? Before:  ![Screenshot 2024-06-07 at...

cluster: move stats update into a better place

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### What problem does this PR solve? Issue Number: Close #3286, close #3558, close #3199, ref #5648. ### What is changed and how does it work? ```commit-message ``` ### Check...

`TestKeyspaceGroupMergeIntoDefault` failed

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## Flaky Test ### Which jobs are failing ``` testutil.go:63: Error Trace: /home/runner/work/pd/pd/pkg/utils/testutil/testutil.go:63 /home/runner/work/pd/pd/tests/tso_cluster.go:168 /home/runner/work/pd/pd/tests/integrations/mcs/tso/keyspace_group_manager_test.go:787 Error: Condition never satisfied Test: TestTSOKeyspaceGroupManager/TestKeyspaceGroupMergeIntoDefault ``` ### CI link https://github.com/tikv/pd/actions/runs/5995496714/job/16258601063?pr=6985 ### Reason for failure...

See https://github.com/etcd-io/etcd/pull/14066#discussion_r1639280620

pkg: delete config when QPS and concurrency are both deleted

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### What problem does this PR solve? Issue Number: Ref #4373. ### What is changed and how does it work? ```commit-message ``` ### Check List Tests - Unit test ###...

tools: support changing service-middleware config through pd-ctl

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### What problem does this PR solve? Issue Number: Close #4373 ### What is changed and how does it work? This PR supports using pd-ctl to manage the service middleware...

*: upgrade go to 1.23

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### What problem does this PR solve? Issue Number: Close #8644 ### What is changed and how does it work? ```commit-message ``` ### Check List Tests - Unit test -...

## Enhancement Task When we reset the cache through HTTP admin API or online recovery, the PD will rebalance the region and leader immediately. However, the region information that scheduling...

[DNM] skip evict leader for v7.5.1

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This PR is only used for test purposes. diff: https://github.com/tikv/pd/compare/v7.5.1...rleungx:pd:v7.5.1-skip-evict-leader?expand=1