001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *     http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018package org.apache.hadoop.hbase.regionserver;
019
020import org.apache.yetus.audience.InterfaceAudience;
021
022@InterfaceAudience.Private
023public class SteppingSplitPolicy extends IncreasingToUpperBoundRegionSplitPolicy {
024  @Override
025  public String toString() {
026    return "SteppingSplitPolicysuper{" + super.toString() + "}";
027  }
028
029  /**
030   * @return flushSize * 2 if there's exactly one region of the table in question found on this
031   *         regionserver. Otherwise max file size. This allows a table to spread quickly across
032   *         servers, while avoiding creating too many regions.
033   */
034  @Override
035  protected long getSizeToCheck(final int tableRegionsCount) {
036    return tableRegionsCount == 1 ? this.initialSize : getDesiredMaxFileSize();
037  }
038}