HDFS-12792. RBF: Test Router-based federation using HDFSContract. Contributed by Inigo Goiri.

hadoop-hdfs-project/hadoop-hdfs-rbf/src/test/java/org/apache/hadoop/fs/contract/router/RouterHDFSContract.java

@@ -0,0 +1,98 @@
+/*
+ * 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.fs.contract.router;
+
+import static org.apache.hadoop.hdfs.server.federation.FederationTestUtils.NAMENODES;
+
+import java.io.IOException;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.FileSystem;
+import org.apache.hadoop.fs.contract.AbstractFSContractTestBase;
+import org.apache.hadoop.fs.contract.hdfs.HDFSContract;
+import org.apache.hadoop.hdfs.MiniDFSCluster;
+import org.apache.hadoop.hdfs.server.federation.MiniRouterDFSCluster;
+import org.junit.Assert;
+
+/**
+ * The contract of Router-based Federated HDFS.
+ */
+public class RouterHDFSContract extends HDFSContract {
+
+  public static final int BLOCK_SIZE =
+      AbstractFSContractTestBase.TEST_FILE_LEN;
+  private static MiniRouterDFSCluster cluster;
+
+  public RouterHDFSContract(Configuration conf) {
+    super(conf);
+  }
+
+  public static void createCluster() throws IOException {
+    try {
+      cluster = new MiniRouterDFSCluster(true, 2);
+
+      // Start NNs and DNs and wait until ready
+      cluster.startCluster();
+
+      // Start routers with only an RPC service
+      cluster.startRouters();
+
+      // Register and verify all NNs with all routers
+      cluster.registerNamenodes();
+      cluster.waitNamenodeRegistration();
+
+      // Setup the mount table
+      cluster.installMockLocations();
+
+      // Making one Namenodes active per nameservice
+      if (cluster.isHighAvailability()) {
+        for (String ns : cluster.getNameservices()) {
+          cluster.switchToActive(ns, NAMENODES[0]);
+          cluster.switchToStandby(ns, NAMENODES[1]);
+        }
+      }
+
+      cluster.waitActiveNamespaces();
+    } catch (Exception e) {
+      destroyCluster();
+      throw new IOException("Cannot start federated cluster", e);
+    }
+  }
+
+  public static void destroyCluster() throws IOException {
+    if (cluster != null) {
+      cluster.shutdown();
+      cluster = null;
+    }
+  }
+
+  public static MiniDFSCluster getCluster() {
+    return cluster.getCluster();
+  }
+
+  public static FileSystem getFileSystem() throws IOException {
+    //assumes cluster is not null
+    Assert.assertNotNull("cluster not created", cluster);
+    return cluster.getRandomRouter().getFileSystem();
+  }
+
+  @Override
+  public FileSystem getTestFileSystem() throws IOException {
+    return getFileSystem();
+  }
+}

hadoop-hdfs-project/hadoop-hdfs-rbf/src/test/java/org/apache/hadoop/fs/contract/router/TestRouterHDFSContractAppend.java

@@ -0,0 +1,44 @@
+/*
+ * Licensed 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. See accompanying LICENSE file.
+ */
+
+package org.apache.hadoop.fs.contract.router;
+
+import java.io.IOException;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.contract.AbstractContractAppendTest;
+import org.apache.hadoop.fs.contract.AbstractFSContract;
+import org.junit.AfterClass;
+import org.junit.BeforeClass;
+
+/**
+ * Test append operations on the Router-based FS.
+ */
+public class TestRouterHDFSContractAppend extends AbstractContractAppendTest {
+
+  @BeforeClass
+  public static void createCluster() throws IOException {
+    RouterHDFSContract.createCluster();
+  }
+
+  @AfterClass
+  public static void teardownCluster() throws IOException {
+    RouterHDFSContract.destroyCluster();
+  }
+
+  @Override
+  protected AbstractFSContract createContract(Configuration conf) {
+    return new RouterHDFSContract(conf);
+  }
+}

hadoop-hdfs-project/hadoop-hdfs-rbf/src/test/java/org/apache/hadoop/fs/contract/router/TestRouterHDFSContractConcat.java

@@ -0,0 +1,51 @@
+/*
+ * 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.fs.contract.router;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.fs.contract.AbstractContractConcatTest;
+import org.apache.hadoop.fs.contract.AbstractFSContract;
+import org.junit.AfterClass;
+import org.junit.BeforeClass;
+
+import java.io.IOException;
+
+/**
+ * Test concat operations on the Router-based FS.
+ */
+public class TestRouterHDFSContractConcat extends AbstractContractConcatTest {
+
+  @BeforeClass
+  public static void createCluster() throws IOException {
+    RouterHDFSContract.createCluster();
+    // perform a simple operation on the cluster to verify it is up
+    RouterHDFSContract.getFileSystem().getDefaultBlockSize(new Path("/"));
+  }
+
+  @AfterClass
+  public static void teardownCluster() throws IOException {
+    RouterHDFSContract.destroyCluster();
+  }
+
+  @Override
+  protected AbstractFSContract createContract(Configuration conf) {
+    return new RouterHDFSContract(conf);
+  }
+}

hadoop-hdfs-project/hadoop-hdfs-rbf/src/test/java/org/apache/hadoop/fs/contract/router/TestRouterHDFSContractCreate.java

@@ -0,0 +1,48 @@
+/*
+ * 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.fs.contract.router;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.contract.AbstractContractCreateTest;
+import org.apache.hadoop.fs.contract.AbstractFSContract;
+import org.junit.AfterClass;
+import org.junit.BeforeClass;
+
+import java.io.IOException;
+
+/**
+ * Test create operations on the Router-based FS.
+ */
+public class TestRouterHDFSContractCreate extends AbstractContractCreateTest {
+
+  @BeforeClass
+  public static void createCluster() throws IOException {
+    RouterHDFSContract.createCluster();
+  }
+
+  @AfterClass
+  public static void teardownCluster() throws IOException {
+    RouterHDFSContract.destroyCluster();
+  }
+
+  @Override
+  protected AbstractFSContract createContract(Configuration conf) {
+    return new RouterHDFSContract(conf);
+  }
+}

hadoop-hdfs-project/hadoop-hdfs-rbf/src/test/java/org/apache/hadoop/fs/contract/router/TestRouterHDFSContractDelete.java

@@ -0,0 +1,48 @@
+/*
+ * 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.fs.contract.router;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.contract.AbstractContractDeleteTest;
+import org.apache.hadoop.fs.contract.AbstractFSContract;
+import org.junit.AfterClass;
+import org.junit.BeforeClass;
+
+import java.io.IOException;
+
+/**
+ * Test delete operations on the Router-based FS.
+ */
+public class TestRouterHDFSContractDelete extends AbstractContractDeleteTest {
+
+  @BeforeClass
+  public static void createCluster() throws IOException {
+    RouterHDFSContract.createCluster();
+  }
+
+  @AfterClass
+  public static void teardownCluster() throws IOException {
+    RouterHDFSContract.destroyCluster();
+  }
+
+  @Override
+  protected AbstractFSContract createContract(Configuration conf) {
+    return new RouterHDFSContract(conf);
+  }
+}

hadoop-hdfs-project/hadoop-hdfs-rbf/src/test/java/org/apache/hadoop/fs/contract/router/TestRouterHDFSContractGetFileStatus.java

@@ -0,0 +1,49 @@
+/*
+ * 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.fs.contract.router;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.contract.AbstractContractGetFileStatusTest;
+import org.apache.hadoop.fs.contract.AbstractFSContract;
+import org.junit.AfterClass;
+import org.junit.BeforeClass;
+
+import java.io.IOException;
+
+/**
+ * Test get file status operations on the Router-based FS.
+ */
+public class TestRouterHDFSContractGetFileStatus
+    extends AbstractContractGetFileStatusTest {
+
+  @BeforeClass
+  public static void createCluster() throws IOException {
+    RouterHDFSContract.createCluster();
+  }
+
+  @AfterClass
+  public static void teardownCluster() throws IOException {
+    RouterHDFSContract.destroyCluster();
+  }
+
+  @Override
+  protected AbstractFSContract createContract(Configuration conf) {
+    return new RouterHDFSContract(conf);
+  }
+}

hadoop-hdfs-project/hadoop-hdfs-rbf/src/test/java/org/apache/hadoop/fs/contract/router/TestRouterHDFSContractMkdir.java

@@ -0,0 +1,48 @@
+/*
+ * 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.fs.contract.router;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.contract.AbstractContractMkdirTest;
+import org.apache.hadoop.fs.contract.AbstractFSContract;
+import org.junit.AfterClass;
+import org.junit.BeforeClass;
+
+import java.io.IOException;
+
+/**
+ * Test dir operations on the Router-based FS.
+ */
+public class TestRouterHDFSContractMkdir extends AbstractContractMkdirTest {
+
+  @BeforeClass
+  public static void createCluster() throws IOException {
+    RouterHDFSContract.createCluster();
+  }
+
+  @AfterClass
+  public static void teardownCluster() throws IOException {
+    RouterHDFSContract.destroyCluster();
+  }
+
+  @Override
+  protected AbstractFSContract createContract(Configuration conf) {
+    return new RouterHDFSContract(conf);
+  }
+}

hadoop-hdfs-project/hadoop-hdfs-rbf/src/test/java/org/apache/hadoop/fs/contract/router/TestRouterHDFSContractOpen.java

@@ -0,0 +1,48 @@
+/*
+ * 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.fs.contract.router;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.contract.AbstractContractOpenTest;
+import org.apache.hadoop.fs.contract.AbstractFSContract;
+import org.junit.AfterClass;
+import org.junit.BeforeClass;
+
+import java.io.IOException;
+
+/**
+ * Test open operations on the Router-based FS.
+ */
+public class TestRouterHDFSContractOpen extends AbstractContractOpenTest {
+
+  @BeforeClass
+  public static void createCluster() throws IOException {
+    RouterHDFSContract.createCluster();
+  }
+
+  @AfterClass
+  public static void teardownCluster() throws IOException {
+    RouterHDFSContract.destroyCluster();
+  }
+
+  @Override
+  protected AbstractFSContract createContract(Configuration conf) {
+    return new RouterHDFSContract(conf);
+  }
+}

hadoop-hdfs-project/hadoop-hdfs-rbf/src/test/java/org/apache/hadoop/fs/contract/router/TestRouterHDFSContractRename.java

@@ -0,0 +1,48 @@
+/*
+ * 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.fs.contract.router;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.contract.AbstractContractRenameTest;
+import org.apache.hadoop.fs.contract.AbstractFSContract;
+import org.junit.AfterClass;
+import org.junit.BeforeClass;
+
+import java.io.IOException;
+
+/**
+ * Test rename operations on the Router-based FS.
+ */
+public class TestRouterHDFSContractRename extends AbstractContractRenameTest {
+
+  @BeforeClass
+  public static void createCluster() throws IOException {
+    RouterHDFSContract.createCluster();
+  }
+
+  @AfterClass
+  public static void teardownCluster() throws IOException {
+    RouterHDFSContract.destroyCluster();
+  }
+
+  @Override
+  protected AbstractFSContract createContract(Configuration conf) {
+    return new RouterHDFSContract(conf);
+  }
+}

hadoop-hdfs-project/hadoop-hdfs-rbf/src/test/java/org/apache/hadoop/fs/contract/router/TestRouterHDFSContractRootDirectory.java

@@ -0,0 +1,64 @@
+/*
+ * 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.fs.contract.router;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.contract.AbstractContractRootDirectoryTest;
+import org.apache.hadoop.fs.contract.AbstractFSContract;
+import org.junit.AfterClass;
+import org.junit.BeforeClass;
+
+import java.io.IOException;
+
+/**
+ * Test root dir operations on the Router-based FS.
+ */
+public class TestRouterHDFSContractRootDirectory extends
+    AbstractContractRootDirectoryTest {
+
+  @BeforeClass
+  public static void createCluster() throws IOException {
+    RouterHDFSContract.createCluster();
+  }
+
+  @AfterClass
+  public static void teardownCluster() throws IOException {
+    RouterHDFSContract.destroyCluster();
+  }
+
+  @Override
+  protected AbstractFSContract createContract(Configuration conf) {
+    return new RouterHDFSContract(conf);
+  }
+
+  @Override
+  public void testListEmptyRootDirectory() throws IOException {
+    // It doesn't apply because we still have the mount points here
+  }
+
+  @Override
+  public void testRmEmptyRootDirNonRecursive() throws IOException {
+    // It doesn't apply because we still have the mount points here
+  }
+
+  @Override
+  public void testRecursiveRootListing() throws IOException {
+    // It doesn't apply because we still have the mount points here
+  }
+}

hadoop-hdfs-project/hadoop-hdfs-rbf/src/test/java/org/apache/hadoop/fs/contract/router/TestRouterHDFSContractSeek.java

@@ -0,0 +1,49 @@
+/*
+ * 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.fs.contract.router;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.contract.AbstractContractSeekTest;
+import org.apache.hadoop.fs.contract.AbstractFSContract;
+import org.junit.AfterClass;
+import org.junit.BeforeClass;
+
+import java.io.IOException;
+
+/**
+ * Test seek operations on the Router-based FS.
+ */
+public class TestRouterHDFSContractSeek extends AbstractContractSeekTest {
+
+  @BeforeClass
+  public static void createCluster() throws IOException {
+    RouterHDFSContract.createCluster();
+  }
+
+  @AfterClass
+  public static void teardownCluster() throws IOException {
+    RouterHDFSContract.destroyCluster();
+  }
+
+
+  @Override
+  protected AbstractFSContract createContract(Configuration conf) {
+    return new RouterHDFSContract(conf);
+  }
+}

hadoop-hdfs-project/hadoop-hdfs-rbf/src/test/java/org/apache/hadoop/fs/contract/router/TestRouterHDFSContractSetTimes.java

@@ -0,0 +1,49 @@
+/*
+ * 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.fs.contract.router;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.contract.AbstractContractSetTimesTest;
+import org.apache.hadoop.fs.contract.AbstractFSContract;
+import org.junit.AfterClass;
+import org.junit.BeforeClass;
+
+import java.io.IOException;
+
+/**
+ * Test set times operations on the Router-based FS.
+ */
+public class TestRouterHDFSContractSetTimes
+    extends AbstractContractSetTimesTest {
+
+  @BeforeClass
+  public static void createCluster() throws IOException {
+    RouterHDFSContract.createCluster();
+  }
+
+  @AfterClass
+  public static void teardownCluster() throws IOException {
+    RouterHDFSContract.destroyCluster();
+  }
+
+  @Override
+  protected AbstractFSContract createContract(Configuration conf) {
+    return new RouterHDFSContract(conf);
+  }
+}

hadoop-hdfs-project/hadoop-hdfs-rbf/src/test/java/org/apache/hadoop/hdfs/server/federation/FederationTestUtils.java

@@ -147,6 +147,37 @@ public final class FederationTestUtils {
     }, 1000, 20 * 1000);
   }
 
+  /**
+   * Wait for a namenode to be registered with a particular state.
+   * @param resolver Active namenode resolver.
+   * @param nsId Nameservice identifier.
+   * @param state State to check for.
+   * @throws Exception Failed to verify State Store registration of namenode
+   *                   nsId for state.
+   */
+  public static void waitNamenodeRegistered(
+      final ActiveNamenodeResolver resolver, final String nsId,
+      final FederationNamenodeServiceState state) throws Exception {
+
+    GenericTestUtils.waitFor(new Supplier<Boolean>() {
+      @Override
+      public Boolean get() {
+        try {
+          List<? extends FederationNamenodeContext> nns =
+              resolver.getNamenodesForNameserviceId(nsId);
+          for (FederationNamenodeContext nn : nns) {
+            if (nn.getState().equals(state)) {
+              return true;
+            }
+          }
+        } catch (IOException e) {
+          // Ignore
+        }
+        return false;
+      }
+    }, 1000, 20 * 1000);
+  }
+
   public static boolean verifyDate(Date d1, Date d2, long precision) {
     return Math.abs(d1.getTime() - d2.getTime()) < precision;
   }

hadoop-hdfs-project/hadoop-hdfs-rbf/src/test/java/org/apache/hadoop/hdfs/server/federation/MiniRouterDFSCluster.java

@@ -42,6 +42,7 @@ import static org.apache.hadoop.hdfs.server.federation.router.RBFConfigKeys.DFS_
 import static org.apache.hadoop.hdfs.server.federation.router.RBFConfigKeys.DFS_ROUTER_MONITOR_NAMENODE;
 import static org.apache.hadoop.hdfs.server.federation.router.RBFConfigKeys.DFS_ROUTER_RPC_ADDRESS_KEY;
 import static org.apache.hadoop.hdfs.server.federation.router.RBFConfigKeys.DFS_ROUTER_RPC_BIND_HOST_KEY;
+import static org.apache.hadoop.hdfs.server.federation.router.RBFConfigKeys.DFS_ROUTER_SAFEMODE_ENABLE;
 import static org.apache.hadoop.hdfs.server.federation.router.RBFConfigKeys.FEDERATION_FILE_RESOLVER_CLIENT_CLASS;
 import static org.apache.hadoop.hdfs.server.federation.router.RBFConfigKeys.FEDERATION_NAMENODE_RESOLVER_CLIENT_CLASS;
 import static org.junit.Assert.assertEquals;
@@ -75,6 +76,7 @@ import org.apache.hadoop.hdfs.MiniDFSNNTopology.NNConf;
 import org.apache.hadoop.hdfs.MiniDFSNNTopology.NSConf;
 import org.apache.hadoop.hdfs.server.federation.resolver.ActiveNamenodeResolver;
 import org.apache.hadoop.hdfs.server.federation.resolver.FederationNamenodeServiceState;
+import org.apache.hadoop.hdfs.server.federation.resolver.FederationNamespaceInfo;
 import org.apache.hadoop.hdfs.server.federation.resolver.FileSubclusterResolver;
 import org.apache.hadoop.hdfs.server.federation.resolver.NamenodeStatusReport;
 import org.apache.hadoop.hdfs.server.federation.router.Router;
@@ -91,15 +93,16 @@ import org.slf4j.LoggerFactory;
 /**
  * Test utility to mimic a federated HDFS cluster with multiple routers.
  */
-public class RouterDFSCluster {
+public class MiniRouterDFSCluster {
 
   private static final Logger LOG =
-      LoggerFactory.getLogger(RouterDFSCluster.class);
+      LoggerFactory.getLogger(MiniRouterDFSCluster.class);
 
   public static final String TEST_STRING = "teststring";
   public static final String TEST_DIR = "testdir";
   public static final String TEST_FILE = "testfile";
 
+  private static final Random RND = new Random();
 
   /** Nameservices in the federated cluster. */
   private List<String> nameservices;
@@ -345,7 +348,8 @@ public class RouterDFSCluster {
     }
   }
 
-  public RouterDFSCluster(boolean ha, int numNameservices, int numNamenodes,
+  public MiniRouterDFSCluster(
+      boolean ha, int numNameservices, int numNamenodes,
       long heartbeatInterval, long cacheFlushInterval) {
     this.highAvailability = ha;
     this.heartbeatInterval = heartbeatInterval;
@@ -353,12 +357,13 @@ public class RouterDFSCluster {
     configureNameservices(numNameservices, numNamenodes);
   }
 
-  public RouterDFSCluster(boolean ha, int numNameservices) {
+  public MiniRouterDFSCluster(boolean ha, int numNameservices) {
     this(ha, numNameservices, 2,
         DEFAULT_HEARTBEAT_INTERVAL_MS, DEFAULT_CACHE_INTERVAL_MS);
   }
 
-  public RouterDFSCluster(boolean ha, int numNameservices, int numNamenodes) {
+  public MiniRouterDFSCluster(
+      boolean ha, int numNameservices, int numNamenodes) {
     this(ha, numNameservices, numNamenodes,
         DEFAULT_HEARTBEAT_INTERVAL_MS, DEFAULT_CACHE_INTERVAL_MS);
   }
@@ -480,6 +485,9 @@ public class RouterDFSCluster {
     conf.setClass(FEDERATION_FILE_RESOLVER_CLIENT_CLASS,
         MockResolver.class, FileSubclusterResolver.class);
 
+    // Disable safemode on startup
+    conf.setBoolean(DFS_ROUTER_SAFEMODE_ENABLE, false);
+
     // Set the nameservice ID for the default NN monitor
     conf.set(DFS_NAMESERVICE_ID, nsId);
     if (nnId != null) {
@@ -549,8 +557,7 @@ public class RouterDFSCluster {
   }
 
   public String getRandomNameservice() {
-    Random r = new Random();
+    int randIndex = RND.nextInt(nameservices.size());
-    int randIndex = r.nextInt(nameservices.size());
     return nameservices.get(randIndex);
   }
 
@@ -772,6 +779,22 @@ public class RouterDFSCluster {
     waitNamenodeRegistered(nnResolver, nsId, nnId, state);
   }
 
+  /**
+   * Wait for name spaces to be active.
+   * @throws Exception If we cannot check the status or we timeout.
+   */
+  public void waitActiveNamespaces() throws Exception {
+    for (RouterContext r : this.routers) {
+      Router router = r.router;
+      final ActiveNamenodeResolver resolver = router.getNamenodeResolver();
+      for (FederationNamespaceInfo ns : resolver.getNamespaces()) {
+        final String nsId = ns.getNameserviceId();
+        waitNamenodeRegistered(
+            resolver, nsId, FederationNamenodeServiceState.ACTIVE);
+      }
+    }
+  }
+
   /**
    * Get the federated path for a nameservice.
    * @param nsId Nameservice identifier.

hadoop-hdfs-project/hadoop-hdfs-rbf/src/test/java/org/apache/hadoop/hdfs/server/federation/StateStoreDFSCluster.java

@@ -42,7 +42,7 @@ import org.apache.hadoop.hdfs.server.federation.store.records.MountTable;
  * Test utility to mimic a federated HDFS cluster with a router and a state
  * store.
  */
-public class StateStoreDFSCluster extends RouterDFSCluster {
+public class StateStoreDFSCluster extends MiniRouterDFSCluster {
 
   private static final Class<?> DEFAULT_FILE_RESOLVER =
       MountTableResolver.class;

hadoop-hdfs-project/hadoop-hdfs-rbf/src/test/java/org/apache/hadoop/hdfs/server/federation/router/TestRouterAdmin.java

@@ -29,7 +29,7 @@ import java.util.List;
 
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.hdfs.server.federation.RouterConfigBuilder;
-import org.apache.hadoop.hdfs.server.federation.RouterDFSCluster.RouterContext;
+import org.apache.hadoop.hdfs.server.federation.MiniRouterDFSCluster.RouterContext;
 import org.apache.hadoop.hdfs.server.federation.StateStoreDFSCluster;
 import org.apache.hadoop.hdfs.server.federation.resolver.MountTableManager;
 import org.apache.hadoop.hdfs.server.federation.resolver.RemoteLocation;

hadoop-hdfs-project/hadoop-hdfs-rbf/src/test/java/org/apache/hadoop/hdfs/server/federation/router/TestRouterAdminCLI.java

@@ -30,7 +30,7 @@ import java.util.List;
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.hdfs.protocol.HdfsConstants;
 import org.apache.hadoop.hdfs.server.federation.RouterConfigBuilder;
-import org.apache.hadoop.hdfs.server.federation.RouterDFSCluster.RouterContext;
+import org.apache.hadoop.hdfs.server.federation.MiniRouterDFSCluster.RouterContext;
 import org.apache.hadoop.hdfs.server.federation.StateStoreDFSCluster;
 import org.apache.hadoop.hdfs.server.federation.resolver.MountTableManager;
 import org.apache.hadoop.hdfs.server.federation.resolver.RemoteLocation;

hadoop-hdfs-project/hadoop-hdfs-rbf/src/test/java/org/apache/hadoop/hdfs/server/federation/router/TestRouterAllResolver.java

@@ -34,8 +34,8 @@ import org.apache.hadoop.fs.FileStatus;
 import org.apache.hadoop.fs.FileSystem;
 import org.apache.hadoop.fs.Path;
 import org.apache.hadoop.hdfs.server.federation.RouterConfigBuilder;
-import org.apache.hadoop.hdfs.server.federation.RouterDFSCluster.NamenodeContext;
+import org.apache.hadoop.hdfs.server.federation.MiniRouterDFSCluster.NamenodeContext;
-import org.apache.hadoop.hdfs.server.federation.RouterDFSCluster.RouterContext;
+import org.apache.hadoop.hdfs.server.federation.MiniRouterDFSCluster.RouterContext;
 import org.apache.hadoop.hdfs.server.federation.StateStoreDFSCluster;
 import org.apache.hadoop.hdfs.server.federation.resolver.MountTableManager;
 import org.apache.hadoop.hdfs.server.federation.resolver.MultipleDestinationMountTableResolver;

hadoop-hdfs-project/hadoop-hdfs-rbf/src/test/java/org/apache/hadoop/hdfs/server/federation/router/TestRouterMountTable.java

@@ -28,8 +28,8 @@ import org.apache.hadoop.fs.FileStatus;
 import org.apache.hadoop.fs.FileSystem;
 import org.apache.hadoop.fs.Path;
 import org.apache.hadoop.hdfs.server.federation.RouterConfigBuilder;
-import org.apache.hadoop.hdfs.server.federation.RouterDFSCluster.NamenodeContext;
+import org.apache.hadoop.hdfs.server.federation.MiniRouterDFSCluster.NamenodeContext;
-import org.apache.hadoop.hdfs.server.federation.RouterDFSCluster.RouterContext;
+import org.apache.hadoop.hdfs.server.federation.MiniRouterDFSCluster.RouterContext;
 import org.apache.hadoop.hdfs.server.federation.StateStoreDFSCluster;
 import org.apache.hadoop.hdfs.server.federation.resolver.MountTableManager;
 import org.apache.hadoop.hdfs.server.federation.resolver.MountTableResolver;

hadoop-hdfs-project/hadoop-hdfs-rbf/src/test/java/org/apache/hadoop/hdfs/server/federation/router/TestRouterNamenodeHeartbeat.java

@@ -27,8 +27,8 @@ import java.util.List;
 
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.hdfs.server.federation.MockResolver;
-import org.apache.hadoop.hdfs.server.federation.RouterDFSCluster;
+import org.apache.hadoop.hdfs.server.federation.MiniRouterDFSCluster;
-import org.apache.hadoop.hdfs.server.federation.RouterDFSCluster.NamenodeContext;
+import org.apache.hadoop.hdfs.server.federation.MiniRouterDFSCluster.NamenodeContext;
 import org.apache.hadoop.hdfs.server.federation.resolver.ActiveNamenodeResolver;
 import org.apache.hadoop.hdfs.server.federation.resolver.FederationNamenodeContext;
 import org.apache.hadoop.service.Service.STATE;
@@ -42,9 +42,9 @@ import org.junit.rules.TestName;
  * Test the service that heartbeats the state of the namenodes to the State
  * Store.
  */
-public class TestNamenodeHeartbeat {
+public class TestRouterNamenodeHeartbeat {
 
-  private static RouterDFSCluster cluster;
+  private static MiniRouterDFSCluster cluster;
   private static ActiveNamenodeResolver namenodeResolver;
   private static List<NamenodeHeartbeatService> services;
 
@@ -54,7 +54,7 @@ public class TestNamenodeHeartbeat {
   @BeforeClass
   public static void globalSetUp() throws Exception {
 
-    cluster = new RouterDFSCluster(true, 2);
+    cluster = new MiniRouterDFSCluster(true, 2);
 
     // Start NNs and DNs and wait until ready
     cluster.startCluster();
@@ -91,7 +91,7 @@ public class TestNamenodeHeartbeat {
   @Test
   public void testNamenodeHeartbeatService() throws IOException {
 
-    RouterDFSCluster testCluster = new RouterDFSCluster(true, 1);
+    MiniRouterDFSCluster testCluster = new MiniRouterDFSCluster(true, 1);
     Configuration heartbeatConfig = testCluster.generateNamenodeConfiguration(
         NAMESERVICES[0]);
     NamenodeHeartbeatService server = new NamenodeHeartbeatService(

hadoop-hdfs-project/hadoop-hdfs-rbf/src/test/java/org/apache/hadoop/hdfs/server/federation/router/TestRouterNamenodeMonitoring.java

@@ -28,8 +28,8 @@ import java.util.List;
 
 import org.apache.hadoop.conf.Configuration;
 import org.apache.hadoop.hdfs.server.federation.RouterConfigBuilder;
-import org.apache.hadoop.hdfs.server.federation.RouterDFSCluster.NamenodeContext;
+import org.apache.hadoop.hdfs.server.federation.MiniRouterDFSCluster.NamenodeContext;
-import org.apache.hadoop.hdfs.server.federation.RouterDFSCluster.RouterContext;
+import org.apache.hadoop.hdfs.server.federation.MiniRouterDFSCluster.RouterContext;
 import org.apache.hadoop.hdfs.server.federation.StateStoreDFSCluster;
 import org.apache.hadoop.hdfs.server.federation.resolver.FederationNamenodeContext;
 import org.apache.hadoop.hdfs.server.federation.resolver.MembershipNamenodeResolver;

hadoop-hdfs-project/hadoop-hdfs-rbf/src/test/java/org/apache/hadoop/hdfs/server/federation/router/TestRouterQuota.java

@@ -38,8 +38,8 @@ import org.apache.hadoop.hdfs.protocol.ClientProtocol;
 import org.apache.hadoop.hdfs.protocol.DSQuotaExceededException;
 import org.apache.hadoop.hdfs.protocol.NSQuotaExceededException;
 import org.apache.hadoop.hdfs.server.federation.RouterConfigBuilder;
-import org.apache.hadoop.hdfs.server.federation.RouterDFSCluster.NamenodeContext;
+import org.apache.hadoop.hdfs.server.federation.MiniRouterDFSCluster.NamenodeContext;
-import org.apache.hadoop.hdfs.server.federation.RouterDFSCluster.RouterContext;
+import org.apache.hadoop.hdfs.server.federation.MiniRouterDFSCluster.RouterContext;
 import org.apache.hadoop.hdfs.server.federation.StateStoreDFSCluster;
 import org.apache.hadoop.hdfs.server.federation.resolver.MountTableManager;
 import org.apache.hadoop.hdfs.server.federation.resolver.MountTableResolver;

hadoop-hdfs-project/hadoop-hdfs-rbf/src/test/java/org/apache/hadoop/hdfs/server/federation/router/TestRouterRPCClientRetries.java

@@ -31,8 +31,8 @@ import org.apache.hadoop.hdfs.DFSClient;
 import org.apache.hadoop.hdfs.MiniDFSCluster;
 import org.apache.hadoop.hdfs.protocol.ClientProtocol;
 import org.apache.hadoop.hdfs.server.federation.RouterConfigBuilder;
-import org.apache.hadoop.hdfs.server.federation.RouterDFSCluster.NamenodeContext;
+import org.apache.hadoop.hdfs.server.federation.MiniRouterDFSCluster.NamenodeContext;
-import org.apache.hadoop.hdfs.server.federation.RouterDFSCluster.RouterContext;
+import org.apache.hadoop.hdfs.server.federation.MiniRouterDFSCluster.RouterContext;
 import org.apache.hadoop.hdfs.server.federation.StateStoreDFSCluster;
 import org.apache.hadoop.hdfs.server.federation.metrics.FederationRPCMetrics;
 import org.apache.hadoop.hdfs.server.federation.resolver.FederationNamenodeContext;

hadoop-hdfs-project/hadoop-hdfs-rbf/src/test/java/org/apache/hadoop/hdfs/server/federation/router/TestRouterRpc.java

@@ -23,7 +23,7 @@ import static org.apache.hadoop.hdfs.server.federation.FederationTestUtils.creat
 import static org.apache.hadoop.hdfs.server.federation.FederationTestUtils.deleteFile;
 import static org.apache.hadoop.hdfs.server.federation.FederationTestUtils.getFileStatus;
 import static org.apache.hadoop.hdfs.server.federation.FederationTestUtils.verifyFileExists;
-import static org.apache.hadoop.hdfs.server.federation.RouterDFSCluster.TEST_STRING;
+import static org.apache.hadoop.hdfs.server.federation.MiniRouterDFSCluster.TEST_STRING;
 import static org.junit.Assert.assertArrayEquals;
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertFalse;
@@ -72,9 +72,9 @@ import org.apache.hadoop.hdfs.protocol.HdfsFileStatus;
 import org.apache.hadoop.hdfs.protocol.LocatedBlock;
 import org.apache.hadoop.hdfs.protocol.LocatedBlocks;
 import org.apache.hadoop.hdfs.server.federation.RouterConfigBuilder;
-import org.apache.hadoop.hdfs.server.federation.RouterDFSCluster;
+import org.apache.hadoop.hdfs.server.federation.MiniRouterDFSCluster;
-import org.apache.hadoop.hdfs.server.federation.RouterDFSCluster.NamenodeContext;
+import org.apache.hadoop.hdfs.server.federation.MiniRouterDFSCluster.NamenodeContext;
-import org.apache.hadoop.hdfs.server.federation.RouterDFSCluster.RouterContext;
+import org.apache.hadoop.hdfs.server.federation.MiniRouterDFSCluster.RouterContext;
 import org.apache.hadoop.hdfs.server.federation.resolver.FileSubclusterResolver;
 import org.apache.hadoop.hdfs.server.protocol.DatanodeStorageReport;
 import org.apache.hadoop.io.EnumSetWritable;
@@ -114,7 +114,7 @@ public class TestRouterRpc {
       };
 
   /** Federated HDFS cluster. */
-  private static RouterDFSCluster cluster;
+  private static MiniRouterDFSCluster cluster;
 
   /** Random Router for this federated cluster. */
   private RouterContext router;
@@ -142,7 +142,7 @@ public class TestRouterRpc {
 
   @BeforeClass
   public static void globalSetUp() throws Exception {
-    cluster = new RouterDFSCluster(false, 2);
+    cluster = new MiniRouterDFSCluster(false, 2);
     // We need 6 DNs to test Erasure Coding with RS-6-3-64k
     cluster.setNumDatanodesPerNameservice(6);
 
@@ -221,7 +221,7 @@ public class TestRouterRpc {
     testRouter.close();
   }
 
-  protected RouterDFSCluster getCluster() {
+  protected MiniRouterDFSCluster getCluster() {
     return TestRouterRpc.cluster;
   }
 

hadoop-hdfs-project/hadoop-hdfs-rbf/src/test/java/org/apache/hadoop/hdfs/server/federation/router/TestRouterRpcMultiDestination.java

@@ -38,9 +38,9 @@ import org.apache.hadoop.hdfs.protocol.ClientProtocol;
 import org.apache.hadoop.hdfs.protocol.DirectoryListing;
 import org.apache.hadoop.hdfs.protocol.HdfsFileStatus;
 import org.apache.hadoop.hdfs.server.federation.MockResolver;
-import org.apache.hadoop.hdfs.server.federation.RouterDFSCluster;
+import org.apache.hadoop.hdfs.server.federation.MiniRouterDFSCluster;
-import org.apache.hadoop.hdfs.server.federation.RouterDFSCluster.NamenodeContext;
+import org.apache.hadoop.hdfs.server.federation.MiniRouterDFSCluster.NamenodeContext;
-import org.apache.hadoop.hdfs.server.federation.RouterDFSCluster.RouterContext;
+import org.apache.hadoop.hdfs.server.federation.MiniRouterDFSCluster.RouterContext;
 import org.apache.hadoop.hdfs.server.federation.resolver.FileSubclusterResolver;
 import org.apache.hadoop.hdfs.server.federation.resolver.PathLocation;
 import org.apache.hadoop.hdfs.server.federation.resolver.RemoteLocation;
@@ -54,7 +54,7 @@ public class TestRouterRpcMultiDestination extends TestRouterRpc {
   @Override
   public void testSetup() throws Exception {
 
-    RouterDFSCluster cluster = getCluster();
+    MiniRouterDFSCluster cluster = getCluster();
 
     // Create mock locations
     getCluster().installMockLocations();

hadoop-hdfs-project/hadoop-hdfs-rbf/src/test/resources/contract/hdfs.xml

@@ -0,0 +1,114 @@
+<!--
+  ~ 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.
+  -->
+
+<configuration>
+  <!--
+  Here are most of the HDFS contract options.
+  -->
+
+  <property>
+    <name>fs.contract.test.root-tests-enabled</name>
+    <value>true</value>
+  </property>
+
+  <property>
+    <name>fs.file.contract.test.random-seek-count</name>
+    <value>500</value>
+  </property>
+
+  <property>
+    <name>fs.contract.is-case-sensitive</name>
+    <value>true</value>
+  </property>
+
+  <property>
+    <name>fs.contract.supports-append</name>
+    <value>true</value>
+  </property>
+
+  <property>
+    <name>fs.contract.supports-atomic-directory-delete</name>
+    <value>true</value>
+  </property>
+
+  <property>
+    <name>fs.contract.supports-atomic-rename</name>
+    <value>true</value>
+  </property>
+
+  <property>
+    <name>fs.contract.supports-block-locality</name>
+    <value>true</value>
+  </property>
+
+  <property>
+    <name>fs.contract.supports-concat</name>
+    <value>true</value>
+  </property>
+
+  <property>
+    <name>fs.contract.supports-seek</name>
+    <value>true</value>
+  </property>
+
+  <property>
+    <name>fs.contract.rejects-seek-past-eof</name>
+    <value>true</value>
+  </property>
+
+  <property>
+    <name>fs.contract.supports-strict-exceptions</name>
+    <value>true</value>
+  </property>
+
+  <property>
+    <name>fs.contract.supports-unix-permissions</name>
+    <value>true</value>
+  </property>
+
+  <property>
+    <name>fs.contract.rename-returns-false-if-dest-exists</name>
+    <value>true</value>
+  </property>
+
+  <property>
+    <name>fs.contract.rename-returns-false-if-source-missing</name>
+    <value>true</value>
+  </property>
+
+  <property>
+    <name>fs.contract.supports-settimes</name>
+    <value>true</value>
+  </property>
+
+  <property>
+    <name>fs.contract.supports-getfilestatus</name>
+    <value>true</value>
+  </property>
+
+  <property>
+    <name>fs.contract.supports-file-reference</name>
+    <value>true</value>
+  </property>
+
+  <property>
+    <name>fs.contract.supports-content-check</name>
+    <value>true</value>
+  </property>
+
+</configuration>