HBASE-3900 Expose progress of a major compaction in UI and/or in shell
git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1162296 13f79535-47bb-0310-9956-ffa450edef68
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/**
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* Copyright 2011 The Apache Software Foundation
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*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.hadoop.hbase.regionserver.compactions;
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/**
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* This class holds information relevant for tracking the progress of a
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* compaction.
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*
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* <p>The metrics tracked allow one to calculate the percent completion of the
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* compaction based on the number of Key/Value pairs already compacted vs.
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* total amount scheduled to be compacted.
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*
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*/
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public class CompactionProgress {
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/** the total compacting key values in currently running compaction */
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public long totalCompactingKVs;
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/** the completed count of key values in currently running compaction */
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public long currentCompactedKVs = 0;
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/** Constructor
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* @param totalCompactingKVs the total Key/Value pairs to be compacted
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*/
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public CompactionProgress(long totalCompactingKVs) {
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this.totalCompactingKVs = totalCompactingKVs;
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}
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/** getter for calculated percent complete
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* @return float
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*/
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public float getProgressPct() {
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return currentCompactedKVs / totalCompactingKVs;
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}
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}
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