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}