store/tikv: Make RangeTaskRunner support dividing task by multiple regions (#10482)

Signed-off-by: MyonKeminta <MyonKeminta@users.noreply.github.com>

Author: MyonKeminta

go.mod

@@ -3,39 +3,29 @@ module github.com/pingcap/tidb
 require (
 	github.com/BurntSushi/toml v0.3.1
 	github.com/StackExchange/wmi v0.0.0-20180725035823-b12b22c5341f // indirect
-	github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973 // indirect
 	github.com/blacktear23/go-proxyprotocol v0.0.0-20180807104634-af7a81e8dd0d
 	github.com/codahale/hdrhistogram v0.0.0-20161010025455-3a0bb77429bd // indirect
 	github.com/coreos/bbolt v1.3.3 // indirect
 	github.com/coreos/etcd v3.3.13+incompatible
-	github.com/coreos/go-semver v0.2.0 // indirect
 	github.com/coreos/go-systemd v0.0.0-20181031085051-9002847aa142 // indirect
 	github.com/coreos/pkg v0.0.0-20180928190104-399ea9e2e55f // indirect
 	github.com/cznic/mathutil v0.0.0-20181122101859-297441e03548
 	github.com/cznic/sortutil v0.0.0-20150617083342-4c7342852e65
-	github.com/dgrijalva/jwt-go v3.2.0+incompatible // indirect
 	github.com/dgryski/go-farm v0.0.0-20190104051053-3adb47b1fb0f
 	github.com/dustin/go-humanize v1.0.0 // indirect
-	github.com/eknkc/amber v0.0.0-20171010120322-cdade1c07385 // indirect
-	github.com/ghodss/yaml v1.0.1-0.20190212211648-25d852aebe32 // indirect
 	github.com/go-ole/go-ole v1.2.1 // indirect
 	github.com/go-sql-driver/mysql v0.0.0-20170715192408-3955978caca4
 	github.com/gogo/protobuf v1.2.0 // indirect
-	github.com/golang/groupcache v0.0.0-20181024230925-c65c006176ff // indirect
 	github.com/golang/protobuf v1.2.0
-	github.com/golang/snappy v0.0.0-20180518054509-2e65f85255db // indirect
 	github.com/google/btree v0.0.0-20180813153112-4030bb1f1f0c
 	github.com/google/uuid v1.1.1
 	github.com/gorilla/context v1.1.1 // indirect
 	github.com/gorilla/mux v1.6.2
 	github.com/gorilla/websocket v1.4.0 // indirect
 	github.com/grpc-ecosystem/go-grpc-middleware v1.0.1-0.20190118093823-f849b5445de4
-	github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0 // indirect
 	github.com/grpc-ecosystem/grpc-gateway v1.5.1 // indirect
-	github.com/jonboulle/clockwork v0.1.0 // indirect
 	github.com/json-iterator/go v1.1.6 // indirect
 	github.com/klauspost/cpuid v0.0.0-20170728055534-ae7887de9fa5
-	github.com/kr/pretty v0.1.0 // indirect
 	github.com/matttproud/golang_protobuf_extensions v1.0.1 // indirect
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v1.0.1 // indirect
@@ -49,13 +39,12 @@ require (
 	github.com/opentracing/opentracing-go v1.0.2
 	github.com/pingcap/check v0.0.0-20190102082844-67f458068fc8
 	github.com/pingcap/errors v0.11.4
-	github.com/pingcap/failpoint v0.0.0-20190422094118-d8535965f59b
-	github.com/pingcap/gofail v0.0.0-20181217135706-6a951c1e42c3 // indirect
+	github.com/pingcap/failpoint v0.0.0-20190512135322-30cc7431d99c
 	github.com/pingcap/goleveldb v0.0.0-20171020122428-b9ff6c35079e
 	github.com/pingcap/kvproto v0.0.0-20190619024611-a4759dfe3753
 	github.com/pingcap/log v0.0.0-20190307075452-bd41d9273596
 	github.com/pingcap/parser v0.0.0-20190612052718-3b36f86d9b7b
-	github.com/pingcap/pd v2.1.11+incompatible
+	github.com/pingcap/pd v0.0.0-20190617100349-293d4b5189bf
 	github.com/pingcap/tidb-tools v2.1.3-0.20190321065848-1e8b48f5c168+incompatible
 	github.com/pingcap/tipb v0.0.0-20190428032612-535e1abaa330
 	github.com/prometheus/client_golang v0.9.0
@@ -67,17 +56,14 @@ require (
 	github.com/shurcooL/httpfs v0.0.0-20171119174359-809beceb2371 // indirect
 	github.com/shurcooL/vfsgen v0.0.0-20181020040650-a97a25d856ca // indirect
 	github.com/sirupsen/logrus v1.2.0
-	github.com/soheilhy/cmux v0.1.4 // indirect
 	github.com/spaolacci/murmur3 v0.0.0-20180118202830-f09979ecbc72
 	github.com/struCoder/pidusage v0.1.2
 	github.com/tiancaiamao/appdash v0.0.0-20181126055449-889f96f722a2
-	github.com/tmc/grpc-websocket-proxy v0.0.0-20171017195756-830351dc03c6 // indirect
 	github.com/twinj/uuid v1.0.0
 	github.com/uber-go/atomic v1.3.2 // indirect
 	github.com/uber/jaeger-client-go v2.15.0+incompatible
 	github.com/uber/jaeger-lib v1.5.0 // indirect
 	github.com/unrolled/render v0.0.0-20180914162206-b9786414de4d // indirect
-	github.com/xiang90/probing v0.0.0-20190116061207-43a291ad63a2 // indirect
 	go.etcd.io/bbolt v1.3.3 // indirect
 	go.uber.org/atomic v1.3.2
 	go.uber.org/zap v1.9.1
@@ -88,7 +74,6 @@ require (
 	golang.org/x/tools v0.0.0-20190130214255-bb1329dc71a0
 	google.golang.org/genproto v0.0.0-20190108161440-ae2f86662275 // indirect
 	google.golang.org/grpc v1.17.0
-	gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 // indirect
 	gopkg.in/natefinch/lumberjack.v2 v2.0.0
 	sourcegraph.com/sourcegraph/appdash v0.0.0-20180531100431-4c381bd170b4
 	sourcegraph.com/sourcegraph/appdash-data v0.0.0-20151005221446-73f23eafcf67