1 /**
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
17 */
18 package org.apache.hadoop.hbase.regionserver;
19
20 public class SteppingSplitPolicy extends IncreasingToUpperBoundRegionSplitPolicy {
21 /**
22 * @return flushSize * 2 if there's exactly one region of the table in question
23 * found on this regionserver. Otherwise max file size.
24 * This allows a table to spread quickly across servers, while avoiding creating
25 * too many regions.
26 */
27 protected long getSizeToCheck(final int tableRegionsCount) {
28 return tableRegionsCount == 1 ? this.initialSize : getDesiredMaxFileSize();
29 }
30
31
32 }