HDDS-1974. Implement OM CancelDelegationToken request to use Cache and DoubleBuffer. (#1308)

hadoop-ozone/common/src/main/java/org/apache/hadoop/ozone/security/OzoneDelegationTokenSecretManager.java

@@ -287,6 +287,10 @@ public OzoneTokenIdentifier cancelToken(Token<OzoneTokenIdentifier> token,
       throw new AccessControlException(canceller
           + " is not authorized to cancel the token " + formatTokenId(id));
     }
+
+    // For HA ratis will take care of removal.
+    // This check will be removed, when HA/Non-HA code is merged.
+    if (!isRatisEnabled) {
       try {
         store.removeToken(id);
       } catch (IOException e) {
@@ -296,9 +300,27 @@ public OzoneTokenIdentifier cancelToken(Token<OzoneTokenIdentifier> token,
       if (info == null) {
         throw new InvalidToken("Token not found " + formatTokenId(id));
       }
+    } else {
+      // Check whether token is there in-memory map of tokens or not on the
+      // OM leader.
+      TokenInfo info = currentTokens.get(id);
+      if (info == null) {
+        throw new InvalidToken("Token not found in-memory map of tokens" +
+            formatTokenId(id));
+      }
+    }
     return id;
   }
 
+  /**
+   * Remove the expired token from in-memory map.
+   * @param ozoneTokenIdentifier
+   * @throws IOException
+   */
+  public void removeToken(OzoneTokenIdentifier ozoneTokenIdentifier) {
+    currentTokens.remove(ozoneTokenIdentifier);
+  }
+
   @Override
   public byte[] retrievePassword(OzoneTokenIdentifier identifier)
       throws InvalidToken {

hadoop-ozone/ozone-manager/src/main/java/org/apache/hadoop/ozone/om/request/bucket/OMBucketCreateRequest.java

@@ -152,6 +152,7 @@ public OMClientResponse validateAndUpdateCache(OzoneManager ozoneManager,
         throw new OMException("Volume doesn't exist",
             OMException.ResultCodes.VOLUME_NOT_FOUND);
       }
+
       //Check if bucket already exists
       if (metadataManager.getBucketTable().get(bucketKey) != null) {
         LOG.debug("bucket: {} already exists ", bucketName);

hadoop-ozone/ozone-manager/src/main/java/org/apache/hadoop/ozone/om/request/security/OMCancelDelegationTokenRequest.java

@@ -0,0 +1,125 @@
+/**
+ * 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.ozone.om.request.security;
+
+import com.google.common.base.Optional;
+import org.apache.hadoop.ozone.om.OMMetadataManager;
+import org.apache.hadoop.ozone.om.OzoneManager;
+import org.apache.hadoop.ozone.om.ratis.utils.OzoneManagerDoubleBufferHelper;
+import org.apache.hadoop.ozone.om.request.OMClientRequest;
+import org.apache.hadoop.ozone.om.response.OMClientResponse;
+import org.apache.hadoop.ozone.om.response.security.OMCancelDelegationTokenResponse;
+import org.apache.hadoop.ozone.protocol.proto.OzoneManagerProtocolProtos;
+import org.apache.hadoop.ozone.protocol.proto.OzoneManagerProtocolProtos.OMRequest;
+import org.apache.hadoop.ozone.protocol.proto.OzoneManagerProtocolProtos.OMResponse;
+import org.apache.hadoop.ozone.protocol.proto.OzoneManagerProtocolProtos.CancelDelegationTokenResponseProto;
+import org.apache.hadoop.ozone.protocolPB.OMPBHelper;
+import org.apache.hadoop.ozone.security.OzoneTokenIdentifier;
+import org.apache.hadoop.security.proto.SecurityProtos;
+import org.apache.hadoop.security.proto.SecurityProtos.CancelDelegationTokenRequestProto;
+import org.apache.hadoop.security.token.Token;
+import org.apache.hadoop.utils.db.cache.CacheKey;
+import org.apache.hadoop.utils.db.cache.CacheValue;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.IOException;
+
+/**
+ * Handle CancelDelegationToken Request.
+ */
+public class OMCancelDelegationTokenRequest extends OMClientRequest {
+
+  private static final Logger LOG =
+      LoggerFactory.getLogger(OMGetDelegationTokenRequest.class);
+
+  public OMCancelDelegationTokenRequest(OMRequest omRequest) {
+    super(omRequest);
+  }
+
+  @Override
+  public OMRequest preExecute(OzoneManager ozoneManager) throws IOException {
+
+    // Call OM to cancel token, this does check whether we can cancel token
+    // or not. This does not remove token from DB/in-memory.
+    ozoneManager.cancelDelegationToken(getToken());
+
+    return super.preExecute(ozoneManager);
+  }
+
+  @Override
+  public OMClientResponse validateAndUpdateCache(OzoneManager ozoneManager,
+      long transactionLogIndex,
+      OzoneManagerDoubleBufferHelper ozoneManagerDoubleBufferHelper) {
+
+    OMMetadataManager omMetadataManager = ozoneManager.getMetadataManager();
+
+    OMClientResponse omClientResponse = null;
+    OMResponse.Builder omResponse =
+        OMResponse.newBuilder()
+            .setCmdType(OzoneManagerProtocolProtos.Type.CancelDelegationToken)
+            .setStatus(OzoneManagerProtocolProtos.Status.OK)
+            .setSuccess(true);
+    OzoneTokenIdentifier ozoneTokenIdentifier = null;
+    try {
+      ozoneTokenIdentifier =
+          OzoneTokenIdentifier.readProtoBuf(getToken().getIdentifier());
+
+      // Remove token from in-memory.
+      ozoneManager.getDelegationTokenMgr().removeToken(ozoneTokenIdentifier);
+
+      // Update Cache.
+      omMetadataManager.getDelegationTokenTable().addCacheEntry(
+          new CacheKey<>(ozoneTokenIdentifier),
+          new CacheValue<>(Optional.absent(), transactionLogIndex));
+
+      omClientResponse =
+          new OMCancelDelegationTokenResponse(ozoneTokenIdentifier,
+              omResponse.setCancelDelegationTokenResponse(
+                  CancelDelegationTokenResponseProto.newBuilder().setResponse(
+                      SecurityProtos.CancelDelegationTokenResponseProto
+                          .newBuilder())).build());
+    } catch (IOException ex) {
+      LOG.error("Error in cancel DelegationToken {}", ozoneTokenIdentifier, ex);
+      omClientResponse = new OMCancelDelegationTokenResponse(null,
+          createErrorOMResponse(omResponse, ex));
+    } finally {
+      if (omClientResponse != null) {
+        omClientResponse.setFlushFuture(
+            ozoneManagerDoubleBufferHelper.add(omClientResponse,
+                transactionLogIndex));
+      }
+    }
+
+    if (LOG.isDebugEnabled()) {
+      LOG.debug("Cancelled delegation token: {}", ozoneTokenIdentifier);
+    }
+
+    return omClientResponse;
+  }
+
+
+  public Token<OzoneTokenIdentifier> getToken() {
+    CancelDelegationTokenRequestProto cancelDelegationTokenRequest =
+        getOmRequest().getCancelDelegationTokenRequest();
+
+    return OMPBHelper.convertToDelegationToken(
+        cancelDelegationTokenRequest.getToken());
+  }
+}

hadoop-ozone/ozone-manager/src/main/java/org/apache/hadoop/ozone/om/request/security/OMGetDelegationTokenRequest.java

@@ -25,7 +25,7 @@
 import org.apache.hadoop.ozone.om.ratis.utils.OzoneManagerDoubleBufferHelper;
 import org.apache.hadoop.ozone.om.request.OMClientRequest;
 import org.apache.hadoop.ozone.om.response.OMClientResponse;
-import org.apache.hadoop.ozone.om.response.security.OMDelegationTokenResponse;
+import org.apache.hadoop.ozone.om.response.security.OMGetDelegationTokenResponse;
 import org.apache.hadoop.ozone.protocol.proto.OzoneManagerProtocolProtos;
 import org.apache.hadoop.ozone.protocol.proto.OzoneManagerProtocolProtos.GetDelegationTokenResponseProto;
 import org.apache.hadoop.ozone.protocol.proto.OzoneManagerProtocolProtos.OMRequest;
@@ -65,13 +65,13 @@ public OMRequest preExecute(OzoneManager ozoneManager) throws IOException {
         .getDelegationToken(new Text(getDelegationTokenRequest.getRenewer()));
 
 
-    // Client issues GetDelegationToken request, when received by OM leader will
+    // Client issues GetDelegationToken request, when received by OM leader
-    // it generate Token. Original GetDelegationToken request is converted to
+    // it will generate a token. Original GetDelegationToken request is
-    // UpdateGetDelegationToken request with the generated token information.
+    // converted to UpdateGetDelegationToken request with the generated token
-    // This updated request will be submitted to Ratis. In this way delegation
+    // information. This updated request will be submitted to Ratis. In this
-    // token created by leader, will be replicated across all OMs.
+    // way delegation token created by leader, will be replicated across all
-    // And also original GetDelegationToken request from client does not need
+    // OMs. With this approach, original GetDelegationToken request from
-    // any proto changes.
+    // client does not need any proto changes.
 
     // Create UpdateGetDelegationTokenRequest with token response.
     OMRequest.Builder omRequest = OMRequest.newBuilder()
@@ -129,14 +129,14 @@ public OMClientResponse validateAndUpdateCache(OzoneManager ozoneManager,
           new CacheValue<>(Optional.of(renewTime), transactionLogIndex));
 
       omClientResponse =
-          new OMDelegationTokenResponse(ozoneTokenIdentifier, renewTime,
+          new OMGetDelegationTokenResponse(ozoneTokenIdentifier, renewTime,
               omResponse.setGetDelegationTokenResponse(
                   updateGetDelegationTokenRequest
                       .getGetDelegationTokenResponse()).build());
     } catch (IOException ex) {
-      LOG.error("Error in Updating DelegationToken {} to DB",
+      LOG.error("Error in Updating DelegationToken {}",
           ozoneTokenIdentifierToken, ex);
-      omClientResponse = new OMDelegationTokenResponse(null, -1L,
+      omClientResponse = new OMGetDelegationTokenResponse(null, -1L,
           createErrorOMResponse(omResponse, ex));
     } finally {
       if (omClientResponse != null) {
@@ -147,7 +147,7 @@ public OMClientResponse validateAndUpdateCache(OzoneManager ozoneManager,
     }
 
     if (LOG.isDebugEnabled()) {
-      LOG.debug("Updated delegation token to OM DB: {}",
+      LOG.debug("Updated delegation token in-memory map: {}",
           ozoneTokenIdentifierToken);
     }
 

hadoop-ozone/ozone-manager/src/main/java/org/apache/hadoop/ozone/om/response/security/OMCancelDelegationTokenResponse.java

@@ -24,30 +24,32 @@
 import org.apache.hadoop.ozone.protocol.proto.OzoneManagerProtocolProtos.OMResponse;
 import org.apache.hadoop.ozone.security.OzoneTokenIdentifier;
 import org.apache.hadoop.utils.db.BatchOperation;
+import org.apache.hadoop.utils.db.Table;
 
+import javax.annotation.Nonnull;
+import javax.annotation.Nullable;
 import java.io.IOException;
 
 /**
- * Handle response for DelegationToken request.
+ * Handle response for CancelDelegationToken request.
  */
-public class OMDelegationTokenResponse extends OMClientResponse {
+public class OMCancelDelegationTokenResponse extends OMClientResponse {
 
   private OzoneTokenIdentifier ozoneTokenIdentifier;
-  private long renewTime;
+
-  public OMDelegationTokenResponse(OzoneTokenIdentifier ozoneTokenIdentifier,
+  public OMCancelDelegationTokenResponse(
-      long renewTime, OMResponse omResponse) {
+      @Nullable OzoneTokenIdentifier ozoneTokenIdentifier,
+      @Nonnull OMResponse omResponse) {
     super(omResponse);
     this.ozoneTokenIdentifier = ozoneTokenIdentifier;
-    this.renewTime = renewTime;
   }
 
   @Override
   public void addToDBBatch(OMMetadataManager omMetadataManager,
       BatchOperation batchOperation) throws IOException {
-
+    Table table = omMetadataManager.getDelegationTokenTable();
     if (getOMResponse().getStatus() == OzoneManagerProtocolProtos.Status.OK) {
-      omMetadataManager.getDelegationTokenTable().putWithBatch(batchOperation,
+      table.deleteWithBatch(batchOperation, ozoneTokenIdentifier);
-          ozoneTokenIdentifier, renewTime);
     }
   }
 }

hadoop-ozone/ozone-manager/src/main/java/org/apache/hadoop/ozone/om/response/security/OMGetDelegationTokenResponse.java

@@ -0,0 +1,58 @@
+/**
+ * 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.ozone.om.response.security;
+
+import org.apache.hadoop.ozone.om.OMMetadataManager;
+import org.apache.hadoop.ozone.om.response.OMClientResponse;
+import org.apache.hadoop.ozone.protocol.proto.OzoneManagerProtocolProtos;
+import org.apache.hadoop.ozone.protocol.proto.OzoneManagerProtocolProtos.OMResponse;
+import org.apache.hadoop.ozone.security.OzoneTokenIdentifier;
+import org.apache.hadoop.utils.db.BatchOperation;
+import org.apache.hadoop.utils.db.Table;
+
+import javax.annotation.Nonnull;
+import javax.annotation.Nullable;
+import java.io.IOException;
+
+/**
+ * Handle response for GetDelegationToken request.
+ */
+public class OMGetDelegationTokenResponse extends OMClientResponse {
+
+  private OzoneTokenIdentifier ozoneTokenIdentifier;
+  private long renewTime = -1L;
+
+  public OMGetDelegationTokenResponse(
+      @Nullable OzoneTokenIdentifier ozoneTokenIdentifier,
+      long renewTime, @Nonnull OMResponse omResponse) {
+    super(omResponse);
+    this.ozoneTokenIdentifier = ozoneTokenIdentifier;
+    this.renewTime = renewTime;
+  }
+
+  @Override
+  public void addToDBBatch(OMMetadataManager omMetadataManager,
+      BatchOperation batchOperation) throws IOException {
+    Table table = omMetadataManager.getDelegationTokenTable();
+    if (getOMResponse().getStatus() == OzoneManagerProtocolProtos.Status.OK) {
+      table.putWithBatch(batchOperation, ozoneTokenIdentifier, renewTime);
+    }
+  }
+}
+