syncer: exit watch leader immediately (#8824) (#8827) #22855

	name: PD Test
	on:
	push:
	branches:
	- master
	- release-4.0
	- release-5.*
	- release-6.*
	pull_request:
	branches:
	- master
	- release-4.0
	- release-5.*
	- release-6.*
	concurrency:
	group: ${{ github.ref }}-${{ github.workflow }}
	cancel-in-progress: true
	jobs:
	chunks:
	runs-on: ubuntu-latest
	strategy:
	fail-fast: true
	matrix:
	worker_id: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
	outputs:
	job-total: 10
	steps:
	- name: Checkout code
	uses: actions/checkout@v4
	- uses: actions/setup-go@v5
	with:
	go-version: "1.19"
	- name: Make Test
	env:
	WORKER_ID: ${{ matrix.worker_id }}
	WORKER_COUNT: 10
	run: \|
	[ $WORKER_ID -ne $WORKER_COUNT ] && make ci-test-job JOB_COUNT=$(($WORKER_COUNT-1)) JOB_INDEX=$WORKER_ID
	[ $WORKER_ID -eq $WORKER_COUNT ] && make ci-test-job-submod
	mv covprofile covprofile_$WORKER_ID
	sed -i "/failpoint_binding/d" covprofile_$WORKER_ID
	- name: Upload coverage result ${{ matrix.worker_id }}
	uses: actions/upload-artifact@v4
	with:
	name: cover-reports-${{ matrix.worker_id }}
	path: covprofile_${{ matrix.worker_id }}
	report-coverage:
	needs: chunks
	runs-on: ubuntu-latest
	steps:
	- name: Checkout code
	uses: actions/checkout@v4
	- name: Download chunk report
	uses: actions/download-artifact@v4
	with:
	pattern: cover-reports-*
	merge-multiple: true
	- name: Merge
	env:
	TOTAL_JOBS: ${{needs.chunks.outputs.job-total}}
	run: for i in $(seq 1 $TOTAL_JOBS); do cat covprofile_$i >> covprofile; done
	- name: Send coverage
	uses: codecov/codecov-action@v1
	with:
	token: ${{ secrets.CODECOV }}
	file: ./covprofile
	flags: unittests
	name: codecov-umbrella

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