YARN-11561. [Federation] GPG Supports Format PolicyStateStore. (#6300) Contributed by Shilun Fan.

Reviewed-by: Inigo Goiri <inigoiri@apache.org>
Signed-off-by: Shilun Fan <slfan1989@apache.org>

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common/src/main/java/org/apache/hadoop/yarn/server/federation/store/FederationPolicyStore.java

@@ -27,6 +27,8 @@
 import org.apache.hadoop.yarn.server.federation.store.records.GetSubClusterPolicyConfigurationResponse;
 import org.apache.hadoop.yarn.server.federation.store.records.SetSubClusterPolicyConfigurationRequest;
 import org.apache.hadoop.yarn.server.federation.store.records.SetSubClusterPolicyConfigurationResponse;
+import org.apache.hadoop.yarn.server.federation.store.records.DeletePoliciesConfigurationsRequest;
+import org.apache.hadoop.yarn.server.federation.store.records.DeletePoliciesConfigurationsResponse;
 
 /**
  * The FederationPolicyStore provides a key-value interface to access the
@@ -74,4 +76,13 @@ SetSubClusterPolicyConfigurationResponse setPolicyConfiguration(
   GetSubClusterPoliciesConfigurationsResponse getPoliciesConfigurations(
       GetSubClusterPoliciesConfigurationsRequest request) throws YarnException;
 
+  /**
+   * Delete all queue-to-policy configurations.
+   *
+   * @param request delete request.
+   * @return If the response is empty, the queue-to-policy configurations are deleted successfully.
+   * @throws Exception if the request is invalid/fails
+   */
+  DeletePoliciesConfigurationsResponse deleteAllPoliciesConfigurations(
+      DeletePoliciesConfigurationsRequest request) throws Exception;
 }

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common/src/main/java/org/apache/hadoop/yarn/server/federation/store/impl/MemoryFederationStateStore.java

@@ -87,6 +87,8 @@
 import org.apache.hadoop.yarn.server.federation.store.records.UpdateReservationHomeSubClusterResponse;
 import org.apache.hadoop.yarn.server.federation.store.records.DeleteReservationHomeSubClusterRequest;
 import org.apache.hadoop.yarn.server.federation.store.records.DeleteReservationHomeSubClusterResponse;
+import org.apache.hadoop.yarn.server.federation.store.records.DeletePoliciesConfigurationsRequest;
+import org.apache.hadoop.yarn.server.federation.store.records.DeletePoliciesConfigurationsResponse;
 import org.apache.hadoop.yarn.server.federation.store.records.RouterMasterKey;
 import org.apache.hadoop.yarn.server.federation.store.records.RouterMasterKeyRequest;
 import org.apache.hadoop.yarn.server.federation.store.records.RouterMasterKeyResponse;
@@ -400,6 +402,13 @@ public GetSubClusterPoliciesConfigurationsResponse getPoliciesConfigurations(
     return GetSubClusterPoliciesConfigurationsResponse.newInstance(result);
   }
 
+  @Override
+  public DeletePoliciesConfigurationsResponse deleteAllPoliciesConfigurations(
+      DeletePoliciesConfigurationsRequest request) throws Exception {
+    policies.clear();
+    return DeletePoliciesConfigurationsResponse.newInstance();
+  }
+
   @Override
   public Version getCurrentVersion() {
     return CURRENT_VERSION_INFO;

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common/src/main/java/org/apache/hadoop/yarn/server/federation/store/impl/SQLFederationStateStore.java

@@ -89,6 +89,8 @@
 import org.apache.hadoop.yarn.server.federation.store.records.GetReservationsHomeSubClusterRequest;
 import org.apache.hadoop.yarn.server.federation.store.records.DeleteReservationHomeSubClusterRequest;
 import org.apache.hadoop.yarn.server.federation.store.records.DeleteReservationHomeSubClusterResponse;
+import org.apache.hadoop.yarn.server.federation.store.records.DeletePoliciesConfigurationsRequest;
+import org.apache.hadoop.yarn.server.federation.store.records.DeletePoliciesConfigurationsResponse;
 import org.apache.hadoop.yarn.server.federation.store.records.UpdateReservationHomeSubClusterRequest;
 import org.apache.hadoop.yarn.server.federation.store.records.UpdateReservationHomeSubClusterResponse;
 import org.apache.hadoop.yarn.server.federation.store.records.ReservationHomeSubCluster;
@@ -1071,6 +1073,29 @@ public GetSubClusterPoliciesConfigurationsResponse getPoliciesConfigurations(
     return GetSubClusterPoliciesConfigurationsResponse.newInstance(policyConfigurations);
   }
 
+  @Override
+  public DeletePoliciesConfigurationsResponse deleteAllPoliciesConfigurations(
+      DeletePoliciesConfigurationsRequest request) throws Exception {
+    Connection connection = null;
+    try {
+      connection = getConnection(false);
+      FederationQueryRunner runner = new FederationQueryRunner();
+      LOG.info("delete table = policies start.");
+      runner.truncateTable(connection, "policies");
+      LOG.info("delete table = policies finished.");
+    } catch (Exception e) {
+      throw new RuntimeException("Could not delete table (policies)!", e);
+    } finally {
+      // Return to the pool the CallableStatement
+      try {
+        FederationStateStoreUtils.returnToPool(LOG, null, connection);
+      } catch (YarnException e) {
+        LOG.error("close connection error.", e);
+      }
+    }
+    return DeletePoliciesConfigurationsResponse.newInstance();
+  }
+
   @Override
   public Version getCurrentVersion() {
     return CURRENT_VERSION_INFO;

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common/src/main/java/org/apache/hadoop/yarn/server/federation/store/impl/ZookeeperFederationStateStore.java

@@ -91,6 +91,8 @@
 import org.apache.hadoop.yarn.server.federation.store.records.DeleteReservationHomeSubClusterResponse;
 import org.apache.hadoop.yarn.server.federation.store.records.UpdateReservationHomeSubClusterRequest;
 import org.apache.hadoop.yarn.server.federation.store.records.UpdateReservationHomeSubClusterResponse;
+import org.apache.hadoop.yarn.server.federation.store.records.DeletePoliciesConfigurationsRequest;
+import org.apache.hadoop.yarn.server.federation.store.records.DeletePoliciesConfigurationsResponse;
 import org.apache.hadoop.yarn.server.federation.store.records.RouterMasterKeyResponse;
 import org.apache.hadoop.yarn.server.federation.store.records.RouterMasterKeyRequest;
 import org.apache.hadoop.yarn.server.federation.store.records.RouterRMTokenResponse;
@@ -786,6 +788,23 @@ public GetSubClusterPoliciesConfigurationsResponse getPoliciesConfigurations(
     return GetSubClusterPoliciesConfigurationsResponse.newInstance(result);
   }
 
+  @Override
+  public DeletePoliciesConfigurationsResponse deleteAllPoliciesConfigurations(
+      DeletePoliciesConfigurationsRequest request) throws Exception {
+
+    zkManager.delete(policiesZNode);
+
+    try {
+      List<ACL> zkAcl = ZKCuratorManager.getZKAcls(configuration);
+      zkManager.createRootDirRecursively(policiesZNode, zkAcl);
+    } catch (Exception e) {
+      String errMsg = "Cannot create base directories: " + e.getMessage();
+      FederationStateStoreUtils.logAndThrowStoreException(LOG, errMsg);
+    }
+
+    return DeletePoliciesConfigurationsResponse.newInstance();
+  }
+
   @Override
   public Version getCurrentVersion() {
     return CURRENT_VERSION_INFO;

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common/src/main/java/org/apache/hadoop/yarn/server/federation/store/records/DeletePoliciesConfigurationsRequest.java

@@ -0,0 +1,34 @@
+/**
+ * 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
+ * <p>
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * <p>
+ * 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.federation.store.records;
+
+import org.apache.hadoop.classification.InterfaceAudience.Private;
+import org.apache.hadoop.classification.InterfaceStability.Unstable;
+import org.apache.hadoop.yarn.util.Records;
+
+/**
+ * This class is used for handling queue policy deletion requests.
+ * We will delete all PoliciesConfigurations.
+ */
+public abstract class DeletePoliciesConfigurationsRequest {
+
+  @Private
+  @Unstable
+  public static DeletePoliciesConfigurationsRequest newInstance() {
+    return Records.newRecord(DeletePoliciesConfigurationsRequest.class);
+  }
+}

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common/src/main/java/org/apache/hadoop/yarn/server/federation/store/records/DeletePoliciesConfigurationsResponse.java

@@ -0,0 +1,33 @@
+/**
+ * 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
+ * <p>
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * <p>
+ * 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.federation.store.records;
+
+import org.apache.hadoop.classification.InterfaceAudience.Private;
+import org.apache.hadoop.classification.InterfaceStability.Unstable;
+import org.apache.hadoop.yarn.util.Records;
+
+/**
+ * This class is used to respond to requests to delete PoliciesConfigurations.
+ */
+public abstract class DeletePoliciesConfigurationsResponse {
+
+  @Private
+  @Unstable
+  public static DeletePoliciesConfigurationsResponse newInstance() {
+    return Records.newRecord(DeletePoliciesConfigurationsResponse.class);
+  }
+}

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common/src/main/java/org/apache/hadoop/yarn/server/federation/store/records/impl/pb/DeletePoliciesConfigurationsRequestPBImpl.java

@@ -0,0 +1,73 @@
+/**
+ * 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
+ * <p>
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * <p>
+ * 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.federation.store.records.impl.pb;
+
+import org.apache.hadoop.classification.InterfaceAudience.Private;
+import org.apache.hadoop.classification.InterfaceStability.Unstable;
+import org.apache.hadoop.thirdparty.protobuf.TextFormat;
+import org.apache.hadoop.yarn.federation.proto.YarnServerFederationProtos.DeletePoliciesConfigurationsRequestProto;
+import org.apache.hadoop.yarn.server.federation.store.records.DeletePoliciesConfigurationsRequest;
+
+@Private
+@Unstable
+public class DeletePoliciesConfigurationsRequestPBImpl
+    extends DeletePoliciesConfigurationsRequest {
+
+  private DeletePoliciesConfigurationsRequestProto proto =
+      DeletePoliciesConfigurationsRequestProto.getDefaultInstance();
+
+  private DeletePoliciesConfigurationsRequestProto.Builder builder = null;
+
+  private boolean viaProto = false;
+
+  public DeletePoliciesConfigurationsRequestPBImpl() {
+    builder = DeletePoliciesConfigurationsRequestProto.newBuilder();
+  }
+
+  public DeletePoliciesConfigurationsRequestPBImpl(
+      DeletePoliciesConfigurationsRequestProto proto) {
+    this.proto = proto;
+    viaProto = true;
+  }
+
+  public DeletePoliciesConfigurationsRequestProto getProto() {
+    proto = viaProto ? proto : builder.build();
+    viaProto = true;
+    return proto;
+  }
+
+  @Override
+  public int hashCode() {
+    return getProto().hashCode();
+  }
+
+  @Override
+  public boolean equals(Object other) {
+    if (other == null) {
+      return false;
+    }
+    if (other.getClass().isAssignableFrom(this.getClass())) {
+      return this.getProto().equals(this.getClass().cast(other).getProto());
+    }
+    return false;
+  }
+
+  @Override
+  public String toString() {
+    return TextFormat.shortDebugString(getProto());
+  }
+}

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common/src/main/java/org/apache/hadoop/yarn/server/federation/store/records/impl/pb/DeletePoliciesConfigurationsResponsePBImpl.java

@@ -0,0 +1,74 @@
+/**
+ * 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
+ * <p>
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * <p>
+ * 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.federation.store.records.impl.pb;
+
+import org.apache.hadoop.classification.InterfaceAudience.Private;
+import org.apache.hadoop.classification.InterfaceStability.Unstable;
+import org.apache.hadoop.thirdparty.protobuf.TextFormat;
+import org.apache.hadoop.yarn.federation.proto.YarnServerFederationProtos.DeletePoliciesConfigurationsResponseProto;
+import org.apache.hadoop.yarn.server.federation.store.records.DeletePoliciesConfigurationsResponse;
+
+
+@Private
+@Unstable
+public class DeletePoliciesConfigurationsResponsePBImpl
+    extends DeletePoliciesConfigurationsResponse {
+
+  private DeletePoliciesConfigurationsResponseProto proto =
+      DeletePoliciesConfigurationsResponseProto.getDefaultInstance();
+
+  private DeletePoliciesConfigurationsResponseProto.Builder builder = null;
+
+  private boolean viaProto = false;
+
+  public DeletePoliciesConfigurationsResponsePBImpl() {
+    builder = DeletePoliciesConfigurationsResponseProto.newBuilder();
+  }
+
+  public DeletePoliciesConfigurationsResponsePBImpl(
+      DeletePoliciesConfigurationsResponseProto proto) {
+    this.proto = proto;
+    viaProto = true;
+  }
+
+  public DeletePoliciesConfigurationsResponseProto getProto() {
+    proto = viaProto ? proto : builder.build();
+    viaProto = true;
+    return proto;
+  }
+
+  @Override
+  public int hashCode() {
+    return getProto().hashCode();
+  }
+
+  @Override
+  public boolean equals(Object other) {
+    if (other == null) {
+      return false;
+    }
+    if (other.getClass().isAssignableFrom(this.getClass())) {
+      return this.getProto().equals(this.getClass().cast(other).getProto());
+    }
+    return false;
+  }
+
+  @Override
+  public String toString() {
+    return TextFormat.shortDebugString(getProto());
+  }
+}

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common/src/main/java/org/apache/hadoop/yarn/server/federation/utils/FederationStateStoreFacade.java

@@ -86,6 +86,7 @@
 import org.apache.hadoop.yarn.server.federation.store.records.GetApplicationsHomeSubClusterRequest;
 import org.apache.hadoop.yarn.server.federation.store.records.GetApplicationsHomeSubClusterResponse;
 import org.apache.hadoop.yarn.server.federation.store.records.DeleteApplicationHomeSubClusterRequest;
+import org.apache.hadoop.yarn.server.federation.store.records.DeletePoliciesConfigurationsRequest;
 import org.apache.hadoop.yarn.security.client.RMDelegationTokenIdentifier;
 import org.apache.hadoop.yarn.webapp.NotFoundException;
 import org.slf4j.Logger;
@@ -1113,6 +1114,11 @@ public ApplicationSubmissionContext getApplicationSubmissionContext(ApplicationI
     }
   }
 
+  public void deleteAllPoliciesConfigurations() throws Exception {
+    DeletePoliciesConfigurationsRequest request =
+        DeletePoliciesConfigurationsRequest.newInstance();
+    stateStore.deleteAllPoliciesConfigurations(request);
+  }
 
   @VisibleForTesting
   public FederationCache getFederationCache() {

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common/src/main/proto/yarn_server_federation_protos.proto

@@ -196,6 +196,11 @@ message DeleteReservationHomeSubClusterRequestProto {
 message DeleteReservationHomeSubClusterResponseProto {
 }
 
+message DeletePoliciesConfigurationsRequestProto {
+}
+
+message DeletePoliciesConfigurationsResponseProto {
+}
 
 //----- configurations ---
 

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common/src/test/java/org/apache/hadoop/yarn/server/federation/store/impl/FederationStateStoreBaseTest.java

@@ -75,6 +75,8 @@
 import org.apache.hadoop.yarn.server.federation.store.records.GetReservationHomeSubClusterRequest;
 import org.apache.hadoop.yarn.server.federation.store.records.DeleteReservationHomeSubClusterRequest;
 import org.apache.hadoop.yarn.server.federation.store.records.DeleteReservationHomeSubClusterResponse;
+import org.apache.hadoop.yarn.server.federation.store.records.DeletePoliciesConfigurationsRequest;
+import org.apache.hadoop.yarn.server.federation.store.records.DeletePoliciesConfigurationsResponse;
 import org.apache.hadoop.yarn.server.federation.store.records.UpdateReservationHomeSubClusterRequest;
 import org.apache.hadoop.yarn.server.federation.store.records.UpdateReservationHomeSubClusterResponse;
 import org.apache.hadoop.yarn.server.federation.store.records.RouterMasterKey;
@@ -122,6 +124,7 @@ public void before() throws IOException, YarnException {
   @After
   public void after() throws Exception {
     testDeleteStateStore();
+    testDeletePolicyStore();
     stateStore.close();
   }
 
@@ -1136,4 +1139,25 @@ public void testDeleteStateStore() throws Exception {
     assertNotNull(appsHomeSubClusters);
     assertEquals(0, appsHomeSubClusters.size());
   }
+
+  public void testDeletePolicyStore() throws Exception {
+    // Step1. We delete all Policies Configurations.
+    FederationStateStore federationStateStore = this.getStateStore();
+    DeletePoliciesConfigurationsRequest request =
+        DeletePoliciesConfigurationsRequest.newInstance();
+    DeletePoliciesConfigurationsResponse response =
+        federationStateStore.deleteAllPoliciesConfigurations(request);
+    assertNotNull(response);
+
+    // Step2. We check the Policies size, the size should be 0 at this time.
+    GetSubClusterPoliciesConfigurationsRequest request1 =
+         GetSubClusterPoliciesConfigurationsRequest.newInstance();
+    GetSubClusterPoliciesConfigurationsResponse response1 =
+        stateStore.getPoliciesConfigurations(request1);
+    assertNotNull(response1);
+    List<SubClusterPolicyConfiguration> policiesConfigs =
+        response1.getPoliciesConfigs();
+    assertNotNull(policiesConfigs);
+    assertEquals(0, policiesConfigs.size());
+  }
 }

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

@@ -340,8 +340,7 @@ public static void main(String[] argv) {
       argv = hParser.getRemainingArgs();
       if (argv.length > 1) {
         if (argv[0].equals("-format-policy-store")) {
-          // TODO: YARN-11561. [Federation] GPG Supports Format PolicyStateStore.
-          System.err.println("format-policy-store is not yet supported.");
+          handFormatPolicyStateStore(conf);
         } else {
           printUsage(System.err);
         }
@@ -366,4 +365,16 @@ public WebApp getWebApp() {
   private static void printUsage(PrintStream out) {
     out.println("Usage: yarn gpg [-format-policy-store]");
   }
+
+  private static void handFormatPolicyStateStore(Configuration conf) {
+    try {
+      System.out.println("Deleting Federation policy state store.");
+      FederationStateStoreFacade facade = FederationStateStoreFacade.getInstance(conf);
+      System.out.println("Federation policy state store has been cleaned.");
+      facade.deleteAllPoliciesConfigurations();
+    } catch (Exception e) {
+      LOG.error("Delete Federation policy state store error.", e);
+      System.err.println("Delete Federation policy state store error, exception = " + e);
+    }
+  }
 }

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/federation/FederationStateStoreService.java

@@ -45,6 +45,8 @@
 import org.apache.hadoop.yarn.server.federation.store.records.DeleteApplicationHomeSubClusterResponse;
 import org.apache.hadoop.yarn.server.federation.store.records.DeleteReservationHomeSubClusterRequest;
 import org.apache.hadoop.yarn.server.federation.store.records.DeleteReservationHomeSubClusterResponse;
+import org.apache.hadoop.yarn.server.federation.store.records.DeletePoliciesConfigurationsRequest;
+import org.apache.hadoop.yarn.server.federation.store.records.DeletePoliciesConfigurationsResponse;
 import org.apache.hadoop.yarn.server.federation.store.records.GetApplicationHomeSubClusterRequest;
 import org.apache.hadoop.yarn.server.federation.store.records.GetApplicationHomeSubClusterResponse;
 import org.apache.hadoop.yarn.server.federation.store.records.GetApplicationsHomeSubClusterRequest;
@@ -322,6 +324,16 @@ public GetSubClusterPoliciesConfigurationsResponse getPoliciesConfigurations(
     return clientMethod.invoke();
   }
 
+  @Override
+  public DeletePoliciesConfigurationsResponse deleteAllPoliciesConfigurations(
+      DeletePoliciesConfigurationsRequest request) throws Exception {
+    FederationClientMethod<DeletePoliciesConfigurationsResponse> clientMethod =
+        new FederationClientMethod<>("deleteAllPoliciesConfigurations",
+        DeletePoliciesConfigurationsRequest.class, request,
+        DeletePoliciesConfigurationsResponse.class, stateStoreClient, clock);
+    return clientMethod.invoke();
+  }
+
   @Override
   public SubClusterRegisterResponse registerSubCluster(SubClusterRegisterRequest request)
       throws YarnException {