diff --git a/.github/workflows/build_and_test_workflow.yml b/.github/workflows/build_and_test_workflow.yml
index f9e54b445373..3a3399a66a8a 100644
--- a/.github/workflows/build_and_test_workflow.yml
+++ b/.github/workflows/build_and_test_workflow.yml
@@ -45,6 +45,18 @@ jobs:
         run: |
           npm uninstall -g yarn
           npm i -g yarn@1.22.10
+          yarn config set network-timeout 1000000 -g
+
+      - name: Configure Yarn Cache
+        run: echo "YARN_CACHE_LOCATION=$(yarn cache dir)" >> $GITHUB_ENV
+
+      - name: Initialize Yarn Cache
+        uses: actions/cache@v3
+        with:
+          path: ${{ env.YARN_CACHE_LOCATION }}
+          key: yarn-${{ hashFiles('**/yarn.lock') }}
+          restore-keys: |
+            yarn-
 
       - name: Run bootstrap
         run: yarn osd bootstrap
@@ -103,14 +115,23 @@ jobs:
         run: |
           npm uninstall -g yarn
           npm i -g yarn@1.22.10
+          yarn config set network-timeout 1000000 -g
 
-      # https://github.com/yarnpkg/yarn/issues/8242#issuecomment-776561223
-      # Increase network timeout for Windows, retry once if bootstrap fails
-      - name: Run bootstrap
+      - name: Configure Yarn Cache
         run: |
-          yarn cache clean
-          yarn config set network-timeout 1000000 -g
-          yarn osd bootstrap || yarn osd bootstrap
+          echo "YARN_CACHE_LOCATION=$(yarn cache dir)" >> $env:GITHUB_ENV
+          echo C:\Program Files\Git\usr\bin>>"%GITHUB_PATH%"
+
+      - name: Initialize Yarn Cache
+        uses: actions/cache@v3
+        with:
+          path: ${{ env.YARN_CACHE_LOCATION }}
+          key: yarn-${{ hashFiles('**/yarn.lock') }}
+          restore-keys: |
+            yarn-
+
+      - name: Run bootstrap
+        run: yarn osd bootstrap || yarn osd bootstrap
 
       - name: Run linter
         id: linter
@@ -164,6 +185,18 @@ jobs:
         run: |
           npm uninstall -g yarn
           npm i -g yarn@1.22.10
+          yarn config set network-timeout 1000000 -g
+
+      - name: Configure Yarn Cache
+        run: echo "YARN_CACHE_LOCATION=$(yarn cache dir)" >> $GITHUB_ENV
+
+      - name: Initialize Yarn Cache
+        uses: actions/cache@v3
+        with:
+          path: ${{ env.YARN_CACHE_LOCATION }}
+          key: yarn-${{ hashFiles('**/yarn.lock') }}
+          restore-keys: |
+            yarn-
 
       - name: Setup chromedriver
         run: node scripts/upgrade_chromedriver.js
@@ -223,17 +256,26 @@ jobs:
         run: |
           npm uninstall -g yarn
           npm i -g yarn@1.22.10
+          yarn config set network-timeout 1000000 -g
+
+      - name: Configure Yarn Cache
+        run: |
+          echo "YARN_CACHE_LOCATION=$(yarn cache dir)" >> $env:GITHUB_ENV
+          echo C:\Program Files\Git\usr\bin>>"%GITHUB_PATH%"
+
+      - name: Initialize Yarn Cache
+        uses: actions/cache@v3
+        with:
+          path: ${{ env.YARN_CACHE_LOCATION }}
+          key: yarn-${{ hashFiles('**/yarn.lock') }}
+          restore-keys: |
+            yarn-
 
       - name: Setup chromedriver
         run: node scripts/upgrade_chromedriver.js
 
-      # https://github.com/yarnpkg/yarn/issues/8242#issuecomment-776561223
-      # Increase network timeout for Windows, retry once if bootstrap fails
       - name: Run bootstrap
-        run: |
-          yarn cache clean
-          yarn config set network-timeout 1000000 -g
-          yarn osd bootstrap || yarn osd bootstrap
+        run: yarn osd bootstrap || yarn osd bootstrap
 
       - name: Build plugins
         run: node scripts/build_opensearch_dashboards_platform_plugins --no-examples --workers 10
@@ -291,6 +333,18 @@ jobs:
         run: |
           npm uninstall -g yarn
           npm i -g yarn@1.22.10
+          yarn config set network-timeout 1000000 -g
+
+      - name: Configure Yarn Cache
+        run: echo "YARN_CACHE_LOCATION=$(yarn cache dir)" >> $GITHUB_ENV
+
+      - name: Initialize Yarn Cache
+        uses: actions/cache@v3
+        with:
+          path: ${{ env.YARN_CACHE_LOCATION }}
+          key: yarn-${{ hashFiles('**/yarn.lock') }}
+          restore-keys: |
+            yarn-
 
       - name: Get package version
         run: |
@@ -347,6 +401,20 @@ jobs:
         run: |
           npm uninstall -g yarn
           npm i -g yarn@1.22.10
+          yarn config set network-timeout 1000000 -g
+
+      - name: Configure Yarn Cache
+        run: |
+          echo "YARN_CACHE_LOCATION=$(yarn cache dir)" >> $env:GITHUB_ENV
+          echo C:\Program Files\Git\usr\bin>>"%GITHUB_PATH%"
+
+      - name: Initialize Yarn Cache
+        uses: actions/cache@v3
+        with:
+          path: ${{ env.YARN_CACHE_LOCATION }}
+          key: yarn-${{ hashFiles('**/yarn.lock') }}
+          restore-keys: |
+            yarn-
 
       - name: Get package version
         run: |
@@ -401,6 +469,18 @@ jobs:
         run: |
           npm uninstall -g yarn
           npm i -g yarn@1.22.10
+          yarn config set network-timeout 1000000 -g
+
+      - name: Configure Yarn Cache
+        run: echo "YARN_CACHE_LOCATION=$(yarn cache dir)" >> $GITHUB_ENV
+
+      - name: Initialize Yarn Cache
+        uses: actions/cache@v3
+        with:
+          path: ${{ env.YARN_CACHE_LOCATION }}
+          key: yarn-${{ hashFiles('**/yarn.lock') }}
+          restore-keys: |
+            yarn-
 
       - name: Get package version
         run: |
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8a65499044b5..755ab6460f1e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -53,6 +53,7 @@ Inspired from [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 - [Vis Builder] Add redux store persistence ([#3088](https://github.com/opensearch-project/OpenSearch-Dashboards/pull/3088))
 - [Multi DataSource] Improve test connection ([#3110](https://github.com/opensearch-project/OpenSearch-Dashboards/pull/3110))
 - [Vis Builder] Add app filter and query persistence without using state container ([#3100](https://github.com/opensearch-project/OpenSearch-Dashboards/pull/3100))
+- [Optimizer] Increase timeout waiting for the exiting of an optimizer worker ([#3193](https://github.com/opensearch-project/OpenSearch-Dashboards/pull/3193))
 
 ### 🐛 Bug Fixes
 
@@ -93,6 +94,7 @@ Inspired from [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 - Add Windows CI workflows ([#2966](https://github.com/opensearch-project/OpenSearch-Dashboards/pull/2966))
 - Add automatic selection of the appropriate version of chrome driver to run functional tests ([#2990](https://github.com/opensearch-project/OpenSearch-Dashboards/pull/2990))
 - Add recording of functional test artifacts if they fail ([#3190](https://github.com/opensearch-project/OpenSearch-Dashboards/pull/3190))
+- Improve yarn's performance in workflows by caching yarn's cache folder ([#3194](https://github.com/opensearch-project/OpenSearch-Dashboards/pull/3194))
 
 ### 📝 Documentation
 
diff --git a/packages/osd-optimizer/src/worker/run_worker.ts b/packages/osd-optimizer/src/worker/run_worker.ts
index e41c917a883a..2997444eb0ef 100644
--- a/packages/osd-optimizer/src/worker/run_worker.ts
+++ b/packages/osd-optimizer/src/worker/run_worker.ts
@@ -78,11 +78,13 @@ const exit = (code: number) => {
   setTimeout(() => {
     send(
       workerMsgs.error(
-        new Error('process did not automatically exit within 5 seconds, forcing exit')
+        new Error(
+          `process did not automatically exit within 15 seconds (previous code: ${code}); forcing exit...`
+        )
       )
     );
     process.exit(1);
-  }, 5000).unref();
+  }, 15000).unref();
 };
 
 // check for connected parent on an unref'd timer rather than listening