diff --git a/.github/workflows/cancel.yaml b/.github/workflows/cancel.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..0f6010ffb51afa26a7270085003c7076e6f7ce4b
--- /dev/null
+++ b/.github/workflows/cancel.yaml
@@ -0,0 +1,39 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+name: Cancel
+
+on:
+  workflow_run:
+    workflows:
+      - CI AND IT
+      - E2E
+      - PluginsTest
+    types:
+      - requested
+
+jobs:
+  # Cancel outdated builds in the repo, including all action tasks of all commits.
+  cancel-outdated-builds:
+    runs-on: ubuntu-18.04
+    timeout-minutes: 10
+    steps:
+      - uses: potiuk/cancel-workflow-runs@v4_1
+        name: Cancel Outdated Builds
+        with:
+          cancelMode: allDuplicates
+          token: ${{ secrets.GITHUB_TOKEN }}
+          sourceRunId: ${{ github.event.workflow_run.id }}
diff --git a/.github/workflows/docker-ci.yaml b/.github/workflows/docker-ci.yaml
index 306a67fb46a3ed9e8c055efffa490c7fe07a3b02..f6fe273bb76426f7a2aeca4090e85d4844dc45b1 100644
--- a/.github/workflows/docker-ci.yaml
+++ b/.github/workflows/docker-ci.yaml
@@ -16,7 +16,11 @@
 
 name: docker-ci
 
-on: [pull_request]
+on:
+  pull_request:
+    paths:
+      - '!**.md'
+
 env:
   SKIP_TEST: true
   DOCKER_DIR: ./docker
diff --git a/.github/workflows/e2e.go.yaml b/.github/workflows/e2e.go.yaml
index 2b5e267f9fd54c9b0483b8eb2d399d53fb64a0ee..d316bd2f6ad8bf11bd1a8b525cb0d8907b0ff4ee 100644
--- a/.github/workflows/e2e.go.yaml
+++ b/.github/workflows/e2e.go.yaml
@@ -18,6 +18,8 @@ name: E2E
 
 on:
   pull_request:
+    paths:
+      - '!**.md'
   push:
     branches:
       - master
diff --git a/.github/workflows/e2e.istio.yaml b/.github/workflows/e2e.istio.yaml
index cb785159ab341927eb25f8d93994a8dc0161046f..34d590e6808191107c4ce535d26d1effa51d9dc4 100644
--- a/.github/workflows/e2e.istio.yaml
+++ b/.github/workflows/e2e.istio.yaml
@@ -18,6 +18,8 @@ name: Istio
 
 on:
   pull_request:
+    paths:
+      - '!**.md'
   push:
     branches:
       - master
diff --git a/.github/workflows/e2e.js.yaml b/.github/workflows/e2e.js.yaml
index 903bf0351c7de29b9c302c32cf4931a8317cbc5d..ae8616c0077e8fefd03802c5908c9d50ab97c562 100644
--- a/.github/workflows/e2e.js.yaml
+++ b/.github/workflows/e2e.js.yaml
@@ -18,6 +18,8 @@ name: E2E
 
 on:
   pull_request:
+    paths:
+      - '!**.md'
   push:
     branches:
       - master
diff --git a/.github/workflows/e2e.kafka.yaml b/.github/workflows/e2e.kafka.yaml
index e8e4c9940cf048faec3c48003df54de3eba74cf6..56935a5c62006290d7991cd2a59795e555b7864b 100644
--- a/.github/workflows/e2e.kafka.yaml
+++ b/.github/workflows/e2e.kafka.yaml
@@ -18,6 +18,8 @@ name: E2E
 
 on:
   pull_request:
+    paths:
+      - '!**.md'
   push:
     branches:
       - master
diff --git a/.github/workflows/e2e.php.yaml b/.github/workflows/e2e.php.yaml
index 7122d311758eefbc083b42ce428e2de3166f2b04..495ab8f254cb9378480eb6a17f59afcc87f71c38 100644
--- a/.github/workflows/e2e.php.yaml
+++ b/.github/workflows/e2e.php.yaml
@@ -18,6 +18,8 @@ name: E2E
 
 on:
   pull_request:
+    paths:
+      - '!**.md'
   push:
     branches:
       - master
diff --git a/.github/workflows/e2e.profiling.yaml b/.github/workflows/e2e.profiling.yaml
index 20a22125215760c791ca84950d6f90afb68a8776..75b0940315c4b806c6b759f1ef5a2f9c0b44dad4 100644
--- a/.github/workflows/e2e.profiling.yaml
+++ b/.github/workflows/e2e.profiling.yaml
@@ -18,6 +18,8 @@ name: E2E
 
 on:
   pull_request:
+    paths:
+      - '!**.md'
   push:
     branches:
       - master
diff --git a/.github/workflows/e2e.python.yaml b/.github/workflows/e2e.python.yaml
index 84c11f6de7adb22fb1076dce6b11e9a1c9001362..20a3940f76b9547cd7800f5fcf8d76fae52e3d11 100644
--- a/.github/workflows/e2e.python.yaml
+++ b/.github/workflows/e2e.python.yaml
@@ -18,6 +18,8 @@ name: E2E
 
 on:
   pull_request:
+    paths:
+      - '!**.md'
   push:
     branches:
       - master
diff --git a/.github/workflows/e2e.ttl.yaml b/.github/workflows/e2e.ttl.yaml
index 43e9f5361125c16ba0e3cb7808c82411da465464..7f1e3f692684b6160f93c418d54ce37542a3aac3 100644
--- a/.github/workflows/e2e.ttl.yaml
+++ b/.github/workflows/e2e.ttl.yaml
@@ -18,6 +18,8 @@ name: E2E
 
 on:
   pull_request:
+    paths:
+      - '!**.md'
   push:
     branches:
       - master
diff --git a/.github/workflows/e2e.yaml b/.github/workflows/e2e.yaml
index 348de064c14b2c09f30ead21d26f3ca5f15bb727..2caf64d1b05337f255206033771d89d5ecb14d35 100644
--- a/.github/workflows/e2e.yaml
+++ b/.github/workflows/e2e.yaml
@@ -18,6 +18,8 @@ name: E2E
 
 on:
   pull_request:
+    paths:
+      - '!**.md'
   push:
     branches:
       - master
diff --git a/.github/workflows/plugins-jdk14-test.0.yaml b/.github/workflows/plugins-jdk14-test.0.yaml
index 16348a5947127768723ec712a13033b2ac2b7ba2..db3ffdd953189dfa1875128a196015ceed51b0cd 100644
--- a/.github/workflows/plugins-jdk14-test.0.yaml
+++ b/.github/workflows/plugins-jdk14-test.0.yaml
@@ -18,6 +18,21 @@ name: PluginsJDK14Test
 
 on:
   pull_request:
+    paths:
+      - '.github/workflows/plugins-*.yaml'
+      - 'apm-application-toolkit/**'
+      - 'apm-commons/**'
+      - 'apm-protocol/**'
+      - 'apm-sniffer/**'
+      - 'test/plugin/**'
+      - '**/pom.xml'
+      - '!test/e2e/**'
+      - '!apm-webapp/**'
+      - '!apm-dist/**'
+      - '!apm-dist-es7/**'
+      - '!apm-docker/**'
+      - '!oap-server/**'
+      - '!**.md'
 
 jobs:
   PluginsJDK14Test:
diff --git a/.github/workflows/plugins-test.0.yaml b/.github/workflows/plugins-test.0.yaml
index 64da882d7e6481fd8124bc5d3b5058c9c2423f57..ee76b483d311be610e737365ab6f44360386a854 100644
--- a/.github/workflows/plugins-test.0.yaml
+++ b/.github/workflows/plugins-test.0.yaml
@@ -18,6 +18,21 @@ name: PluginsTest
 
 on:
   pull_request:
+    paths:
+      - '.github/workflows/plugins-*.yaml'
+      - 'apm-application-toolkit/**'
+      - 'apm-commons/**'
+      - 'apm-protocol/**'
+      - 'apm-sniffer/**'
+      - 'test/plugin/**'
+      - '**/pom.xml'
+      - '!test/e2e/**'
+      - '!apm-webapp/**'
+      - '!apm-dist/**'
+      - '!apm-dist-es7/**'
+      - '!apm-docker/**'
+      - '!oap-server/**'
+      - '!**.md'
 
 jobs:
   PluginsTest:
diff --git a/.github/workflows/plugins-test.1.yaml b/.github/workflows/plugins-test.1.yaml
index f525360770293e8f950d37401152a2b3332809ef..b00d01906c6cad95948fa83b834b3822bee08791 100644
--- a/.github/workflows/plugins-test.1.yaml
+++ b/.github/workflows/plugins-test.1.yaml
@@ -18,6 +18,21 @@ name: PluginsTest
 
 on:
   pull_request:
+    paths:
+      - '.github/workflows/plugins-*.yaml'
+      - 'apm-application-toolkit/**'
+      - 'apm-commons/**'
+      - 'apm-protocol/**'
+      - 'apm-sniffer/**'
+      - 'test/plugin/**'
+      - '**/pom.xml'
+      - '!test/e2e/**'
+      - '!apm-webapp/**'
+      - '!apm-dist/**'
+      - '!apm-dist-es7/**'
+      - '!apm-docker/**'
+      - '!oap-server/**'
+      - '!**.md'
 
 jobs:
   PluginsTest:
diff --git a/.github/workflows/plugins-test.2.yaml b/.github/workflows/plugins-test.2.yaml
index 35fde5d9768f0fc9fab7c6c321b69591fa9f9aaa..71c13eec944797e3e6b94ec367d482a0add0b58b 100644
--- a/.github/workflows/plugins-test.2.yaml
+++ b/.github/workflows/plugins-test.2.yaml
@@ -18,6 +18,21 @@ name: PluginsTest
 
 on:
   pull_request:
+    paths:
+      - '.github/workflows/plugins-*.yaml'
+      - 'apm-application-toolkit/**'
+      - 'apm-commons/**'
+      - 'apm-protocol/**'
+      - 'apm-sniffer/**'
+      - 'test/plugin/**'
+      - '**/pom.xml'
+      - '!test/e2e/**'
+      - '!apm-webapp/**'
+      - '!apm-dist/**'
+      - '!apm-dist-es7/**'
+      - '!apm-docker/**'
+      - '!oap-server/**'
+      - '!**.md'
 
 jobs:
   PluginsTest:
diff --git a/.github/workflows/plugins-test.3.yaml b/.github/workflows/plugins-test.3.yaml
index d86c917b36cd51e5989396ad8ca810075358d067..7a568576e3fe06c2bbd1aa62a5e045aae792be24 100644
--- a/.github/workflows/plugins-test.3.yaml
+++ b/.github/workflows/plugins-test.3.yaml
@@ -18,6 +18,21 @@ name: PluginsTest
 
 on:
   pull_request:
+    paths:
+      - '.github/workflows/plugins-*.yaml'
+      - 'apm-application-toolkit/**'
+      - 'apm-commons/**'
+      - 'apm-protocol/**'
+      - 'apm-sniffer/**'
+      - 'test/plugin/**'
+      - '**/pom.xml'
+      - '!test/e2e/**'
+      - '!apm-webapp/**'
+      - '!apm-dist/**'
+      - '!apm-dist-es7/**'
+      - '!apm-docker/**'
+      - '!oap-server/**'
+      - '!**.md'
 
 jobs:
   PluginsTest: