YARN-11562. [Federation] GPG Support Query Policies In Web. (#6023)

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-globalpolicygenerator/pom.xml

@@ -91,6 +91,13 @@
       <scope>test</scope>
     </dependency>
 
+    <dependency>
+      <groupId>org.apache.hadoop</groupId>
+      <artifactId>hadoop-yarn-common</artifactId>
+      <type>test-jar</type>
+      <scope>test</scope>
+    </dependency>
+
     <dependency>
       <groupId>org.hsqldb</groupId>
       <artifactId>hsqldb</artifactId>

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-globalpolicygenerator/src/main/java/org/apache/hadoop/yarn/server/globalpolicygenerator/webapp/GPGController.java

@@ -38,7 +38,12 @@ public void index() {
   }
 
   public void overview() {
-    setTitle("GPG Details");
+    setTitle("GPG");
     render(GPGOverviewPage.class);
   }
+
+  public void policies() {
+    setTitle("Global Policy Generator Policies");
+    render(GPGPoliciesPage.class);
+  }
 }

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-globalpolicygenerator/src/main/java/org/apache/hadoop/yarn/server/globalpolicygenerator/webapp/GPGPoliciesBlock.java

@@ -0,0 +1,110 @@
+/**
+* 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.
+*/
+package org.apache.hadoop.yarn.server.globalpolicygenerator.webapp;
+
+import com.google.inject.Inject;
+import org.apache.hadoop.yarn.server.federation.policies.dao.WeightedPolicyInfo;
+import org.apache.hadoop.yarn.server.federation.policies.exceptions.FederationPolicyInitializationException;
+import org.apache.hadoop.yarn.server.federation.store.records.SubClusterIdInfo;
+import org.apache.hadoop.yarn.server.federation.store.records.SubClusterPolicyConfiguration;
+import org.apache.hadoop.yarn.server.federation.utils.FederationStateStoreFacade;
+import org.apache.hadoop.yarn.server.globalpolicygenerator.GlobalPolicyGenerator;
+import org.apache.hadoop.yarn.webapp.hamlet2.Hamlet;
+import org.apache.hadoop.yarn.webapp.view.HtmlBlock;
+
+import java.nio.ByteBuffer;
+import java.util.Collection;
+import java.util.Map;
+
+/**
+ * Overview block for the GPG Policies Web UI.
+ */
+public class GPGPoliciesBlock extends HtmlBlock {
+
+  private final GlobalPolicyGenerator gpg;
+
+  private final FederationStateStoreFacade facade;
+
+  @Inject
+  GPGPoliciesBlock(GlobalPolicyGenerator gpg, ViewContext ctx) {
+    super(ctx);
+    this.gpg = gpg;
+    this.facade = FederationStateStoreFacade.getInstance(gpg.getConfig());
+  }
+
+  @Override
+  protected void render(Block html) {
+    try {
+      Collection<SubClusterPolicyConfiguration> policies =
+          facade.getPoliciesConfigurations().values();
+      initYarnFederationPolicies(policies, html);
+    } catch (Exception e) {
+      LOG.error("Get GPGPolicies Error.", e);
+    }
+  }
+
+  private void initYarnFederationPolicies(Collection<SubClusterPolicyConfiguration> policies,
+      Block html) throws FederationPolicyInitializationException {
+
+    Hamlet.TBODY<Hamlet.TABLE<Hamlet>> tbody = html.table("#policies").
+        thead().
+        tr().
+        th(".queue", "Queue Name").
+        th(".policyType", "Policy Type").
+        th(".routerPolicyWeights", "Router PolicyWeights").
+        th(".amrmPolicyWeights", "Router AMRMPolicyWeights").
+        th(".headroomAlpha", "Router Headroom Alpha").
+        __().__().
+        tbody();
+
+    if (policies != null) {
+      for (SubClusterPolicyConfiguration policy : policies) {
+        Hamlet.TR<Hamlet.TBODY<Hamlet.TABLE<Hamlet>>> row = tbody.tr().td(policy.getQueue());
+        // Policy Type
+        String type = policy.getType();
+        row = row.td(type);
+
+        // WeightedPolicyInfo
+        ByteBuffer params = policy.getParams();
+        WeightedPolicyInfo weightedPolicyInfo = WeightedPolicyInfo.fromByteBuffer(params);
+        row = row.td(policyWeight2String(weightedPolicyInfo.getRouterPolicyWeights()));
+        row = row.td(policyWeight2String(weightedPolicyInfo.getAMRMPolicyWeights()));
+        row.td(String.valueOf(weightedPolicyInfo.getHeadroomAlpha())).__();
+      }
+    }
+
+    tbody.__().__();
+  }
+
+  /**
+   * We will convert the PolicyWeight to string format.
+   *
+   * @param weights PolicyWeight.
+   * @return string format PolicyWeight. example: SC-1:0.91, SC-2:0.09
+   */
+  private String policyWeight2String(Map<SubClusterIdInfo, Float> weights) {
+    StringBuilder sb = new StringBuilder();
+    for (Map.Entry<SubClusterIdInfo, Float> entry : weights.entrySet()) {
+      sb.append(entry.getKey().toId()).append(": ").append(entry.getValue()).append(", ");
+    }
+    if (sb.length() > 2) {
+      sb.setLength(sb.length() - 2);
+    }
+    return sb.toString();
+  }
+}

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-globalpolicygenerator/src/main/java/org/apache/hadoop/yarn/server/globalpolicygenerator/webapp/GPGPoliciesPage.java

@@ -0,0 +1,55 @@
+/**
+* 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.
+*/
+package org.apache.hadoop.yarn.server.globalpolicygenerator.webapp;
+
+import org.apache.hadoop.yarn.webapp.SubView;
+import org.apache.hadoop.yarn.webapp.view.TwoColumnLayout;
+
+import static org.apache.hadoop.yarn.webapp.view.JQueryUI.ACCORDION_ID;
+import static org.apache.hadoop.yarn.webapp.view.JQueryUI.ACCORDION;
+import static org.apache.hadoop.yarn.webapp.view.JQueryUI.DATATABLES_ID;
+import static org.apache.hadoop.yarn.webapp.view.JQueryUI.initID;
+
+/**
+ * Overview page for the GPG Policies Web UI.
+ */
+public class GPGPoliciesPage extends TwoColumnLayout {
+
+  @Override
+  protected void preHead(Page.HTML<__> html) {
+    commonPreHead(html);
+  }
+
+  protected void commonPreHead(Page.HTML<__> html) {
+    setTitle("Global Policy Generator Policies");
+    set(ACCORDION_ID, "nav");
+    set(initID(ACCORDION, "nav"), "{autoHeight:false, active:0}");
+    set(DATATABLES_ID, "policies");
+  }
+
+  @Override
+  protected Class<? extends SubView> content() {
+    return GPGPoliciesBlock.class;
+  }
+
+  @Override
+  protected Class<? extends SubView> nav() {
+    return NavBlock.class;
+  }
+
+}

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-globalpolicygenerator/src/main/java/org/apache/hadoop/yarn/server/globalpolicygenerator/webapp/GPGWebApp.java

@@ -25,7 +25,7 @@
 /**
  * The GPG webapp.
  */
-public class GPGWebApp extends WebApp{
+public class GPGWebApp extends WebApp {
   private GlobalPolicyGenerator gpg;
 
   public GPGWebApp(GlobalPolicyGenerator gpg) {
@@ -41,5 +41,6 @@ public void setup() {
       bind(GlobalPolicyGenerator.class).toInstance(gpg);
     }
     route("/", GPGController.class, "overview");
+    route("/policies", GPGController.class, "policies");
   }
 }

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-globalpolicygenerator/src/main/java/org/apache/hadoop/yarn/server/globalpolicygenerator/webapp/NavBlock.java

@@ -31,6 +31,7 @@ public void render(Block html) {
         h3("GPG").
         ul().
           li().a(url(""), "Overview").__().
+          li().a(url("policies"), "Policies").__().
         __().
         h3("Tools").
         ul().

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-globalpolicygenerator/src/test/java/org/apache/hadoop/yarn/server/globalpolicygenerator/webapp/TestGPGWebApp.java

@@ -0,0 +1,40 @@
+/**
+ * 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.
+ */
+package org.apache.hadoop.yarn.server.globalpolicygenerator.webapp;
+
+import org.apache.hadoop.yarn.exceptions.YarnException;
+import org.apache.hadoop.yarn.server.globalpolicygenerator.GlobalPolicyGenerator;
+import org.apache.hadoop.yarn.webapp.test.WebAppTests;
+import org.junit.Test;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.IOException;
+
+public class TestGPGWebApp {
+
+  private static final Logger LOG = LoggerFactory.getLogger(TestGPGWebApp.class);
+
+  @Test
+  public void testGPGPoliciesPageWebView()
+      throws InterruptedException, YarnException, IOException {
+    LOG.info("testGPGPoliciesPageWebView.");
+    WebAppTests.testPage(GPGPoliciesPage.class, GlobalPolicyGenerator.class,
+        new GlobalPolicyGenerator());
+  }
+}