Fix TiFlash overflow (#2740) #1737

	# this workflow contains fmt,build,ut fot tikv-client
	name: verify

	on:
	push:
	branches: [ master ]
	pull_request:
	branches: [ master,release-** ]

	jobs:
	fmt:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout repository
	uses: actions/checkout@v2
	with:
	fetch-depth: 0
	- name: Set up JDK
	uses: actions/setup-java@v2
	with:
	java-version: '8'
	distribution: 'adopt'
	cache: maven
	- name: fmt
	run: \|
	export LC_ALL=en_US.UTF-8
	export LANG=en_US.UTF-8
	export LANGUAGE=en_US.UTF-8
	mvn mvn-scalafmt_2.12:format -Dscalafmt.skip=false -B
	mvn com.coveo:fmt-maven-plugin:format -B
	git diff --quiet
	formatted="$?"
	if [[ "${formatted}" -eq 1 ]]
	then
	echo "code format error, please run the following commands:"
	echo " mvn mvn-scalafmt_2.12:format -Dscalafmt.skip=false"
	echo " mvn com.coveo:fmt-maven-plugin:format"
	exit 1
	fi

	build:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout repository
	uses: actions/checkout@v2
	- name: Set up JDK
	uses: actions/setup-java@v2
	with:
	java-version: '8'
	distribution: 'adopt'
	cache: maven
	- name: build
	run: \|
	mvn clean package -Dmaven.test.skip=true -B

	tikv-client-ut:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout repository
	uses: actions/checkout@v2
	- name: Set up JDK
	uses: actions/setup-java@v2
	with:
	java-version: '8'
	distribution: 'adopt'
	cache: maven
	- name: ut
	run: \|
	lsmod \| grep -qw ipv6 && mvn test -am -pl tikv-client -DsomeModule.test.excludes="*/txn/" -B \|\| mvn test -am -pl tikv-client -DsomeModule.test.excludes="*/txn/,**/PDClientTest.java" -B

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