1 /** 2 * Copyright 2011 The Apache Software Foundation 3 * 4 * Licensed to the Apache Software Foundation (ASF) under one 5 * or more contributor license agreements. See the NOTICE file 6 * distributed with this work for additional information 7 * regarding copyright ownership. The ASF licenses this file 8 * to you under the Apache License, Version 2.0 (the 9 * "License"); you may not use this file except in compliance 10 * with the License. You may obtain a copy of the License at 11 * 12 * http://www.apache.org/licenses/LICENSE-2.0 13 * 14 * Unless required by applicable law or agreed to in writing, software 15 * distributed under the License is distributed on an "AS IS" BASIS, 16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 17 * See the License for the specific language governing permissions and 18 * limitations under the License. 19 */ 20 21 package org.apache.hadoop.hbase.regionserver.compactions; 22 23 /** 24 * This class holds information relevant for tracking the progress of a 25 * compaction. 26 * 27 * <p>The metrics tracked allow one to calculate the percent completion of the 28 * compaction based on the number of Key/Value pairs already compacted vs. 29 * total amount scheduled to be compacted. 30 * 31 */ 32 public class CompactionProgress { 33 34 /** the total compacting key values in currently running compaction */ 35 public long totalCompactingKVs; 36 /** the completed count of key values in currently running compaction */ 37 public long currentCompactedKVs = 0; 38 39 /** Constructor 40 * @param totalCompactingKVs the total Key/Value pairs to be compacted 41 */ 42 public CompactionProgress(long totalCompactingKVs) { 43 this.totalCompactingKVs = totalCompactingKVs; 44 } 45 46 /** getter for calculated percent complete 47 * @return float 48 */ 49 public float getProgressPct() { 50 return currentCompactedKVs / totalCompactingKVs; 51 } 52 }