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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;
19  
20  import java.io.IOException;
21  
22  import org.apache.hadoop.classification.InterfaceAudience;
23  import org.apache.hadoop.classification.InterfaceStability;
24  
25  /**
26   * Thrown by a region server if it will block and wait to serve a request.
27   * For example, the client wants to insert something to a region while the
28   * region is compacting.
29   */
30  @InterfaceAudience.Public
31  @InterfaceStability.Evolving
32  public class RegionTooBusyException extends IOException {
33    private static final long serialVersionUID = 1728345723728342L;
34  
35    /** default constructor */
36    public RegionTooBusyException() {
37      super();
38    }
39  
40    /**
41     * Constructor
42     * @param msg message
43     */
44    public RegionTooBusyException(final String msg) {
45      super(msg);
46    }
47  }