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From GitBox <...@apache.org>
Subject [GitHub] [hadoop] swagle commented on a change in pull request #819: HDDS-1501 : Create a Recon task interface to update internal DB on updates from OM.
Date Wed, 15 May 2019 22:10:41 GMT
swagle commented on a change in pull request #819:  HDDS-1501 : Create a Recon task interface
to update internal DB on updates from OM.
URL: https://github.com/apache/hadoop/pull/819#discussion_r284471626
 
 

 ##########
 File path: hadoop-ozone/ozone-recon/src/main/java/org/apache/hadoop/ozone/recon/tasks/OMDBUpdatesHandler.java
 ##########
 @@ -0,0 +1,216 @@
+/**
+ * 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.recon.tasks;
+
+import static org.apache.hadoop.ozone.om.OmMetadataManagerImpl.BUCKET_TABLE;
+import static org.apache.hadoop.ozone.om.OmMetadataManagerImpl.KEY_TABLE;
+import static org.apache.hadoop.ozone.om.OmMetadataManagerImpl.VOLUME_TABLE;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+
+import org.apache.hadoop.ozone.om.OMMetadataManager;
+import org.apache.hadoop.ozone.om.helpers.OmBucketInfo;
+import org.apache.hadoop.ozone.om.helpers.OmKeyInfo;
+import org.apache.hadoop.ozone.om.helpers.OmVolumeArgs;
+import org.apache.hadoop.utils.db.CodecRegistry;
+import org.rocksdb.RocksDBException;
+import org.rocksdb.WriteBatch;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Class used to listen on OM RocksDB updates.
+ */
+public class OMDBUpdatesHandler extends WriteBatch.Handler{
 
 Review comment:
   missing space

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