Ping Yu

cdc: integrated test "move_keyspan" is not stable

1

## Bug Report ### 1. Describe the bug Integrated test "move_keyspan" is not stable. Error logs [here](https://ci.pingcap.net/blue/organizations/jenkins/common-check/detail/common-check/111058/pipeline/): ``` [2022-11-03T14:52:38.715Z] Traceback (most recent call last): [2022-11-03T14:52:38.715Z] File "/home/jenkins/agent/workspace/common-check/migration/cdc/tests/integration_tests/http_api/util/test_case.py", line 363, in...

cdc: Unstable unit test clientSuite.TestConcurrentProcessRangeRequest

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## Bug Report ### 1. Describe the bug CI link: https://github.com/tikv/migration/runs/7512462840?check_suite_focus=true Logs ``` === Failed === FAIL: cdc/kv Test (276.63s) Error: 7/26 02:42:20.489 +00:00] [ERROR] [client.go:1041] ["tikv reported the request...

cdc,tikv-sink: validate cluster-id of downstream TiKV cluster to avoid loopback

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## Feature Request **Is your feature request related to a problem? Please describe:** **Describe the feature you'd like:** Validate cluster-id of downstream TiKV cluster for TiKV sink to be different...

cdc: unstable unit test

1

## Bug Report ### 1. Describe the bug ### 2. Minimal reproduce step (Required) CI (make unit_test_in_verify_ci). ### 3. What did you see instead (Required) CI (make unit_test_in_verify_ci) succeed. ###...

cdc: kv.clientSuite.TestPrewriteNotMatchError is not stable

1

## Bug Report ### 1. Describe the bug ### 2. Minimal reproduce step (Required) Run `make test` in Github action (CI). ### 3. What did you see instead (Required) Failed....

cdc: Improve scheduler

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## Feature Request **Is your feature request related to a problem? Please describe:** Goals: 1. Ensure correctness. No KeySpan should be overlapped. 2. Be effective with many regions. One KeySpan...

cdc: client_test.TestHandleError is not stable

3

## Bug Report ### 1. Describe the bug `client_test.TestHandleError` is not stable. CI link: https://github.com/tikv/migration/runs/7465132496?check_suite_focus=true From the stack, goroutine raise a exception from [here](https://github.com/tikv/migration/blob/debbf3b14e161d4a61084fa678be7b71031781b1/cdc/cdc/kv/client_test.go#L677), and stuck at [here](https://github.com/tikv/migration/blob/debbf3b14e161d4a61084fa678be7b71031781b1/cdc/cdc/kv/client_test.go#L534). ``` goroutine...

### What is changed? ### Any related PRs or issues? ### Which version does your change affect?

We implement the complete keyspace feature and hard-code to use `API v2` in all integration tests in #439 . It would be much better to regression test on `API v1`...