1 /**
2 * Copyright 2011 The Apache Software Foundation
3 *
4 * Licensed to the Apache Software Foundation (ASF) under one
5 * or more contributor license agreements. See the NOTICE file
6 * distributed with this work for additional information
7 * regarding copyright ownership. The ASF licenses this file
8 * to you under the Apache License, Version 2.0 (the
9 * "License"); you may not use this file except in compliance
10 * with the License. You may obtain a copy of the License at
11 *
12 * http://www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing, software
15 * distributed under the License is distributed on an "AS IS" BASIS,
16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17 * See the License for the specific language governing permissions and
18 * limitations under the License.
19 */
20 package org.apache.hadoop.hbase.regionserver;
21
22 import java.util.concurrent.atomic.AtomicLong;
23
24 /**
25 * RegionServerAccounting keeps record of some basic real time information about
26 * the Region Server. Currently, it only keeps record the global memstore size.
27 */
28 public class RegionServerAccounting {
29
30 private final AtomicLong atomicGlobalMemstoreSize = new AtomicLong(0);
31
32 /**
33 * @return the global Memstore size in the RegionServer
34 */
35 public long getGlobalMemstoreSize() {
36 return atomicGlobalMemstoreSize.get();
37 }
38
39 /**
40 * @param memStoreSize the Memstore size will be added to
41 * the global Memstore size
42 * @return the global Memstore size in the RegionServer
43 */
44 public long addAndGetGlobalMemstoreSize(long memStoreSize) {
45 return atomicGlobalMemstoreSize.addAndGet(memStoreSize);
46 }
47
48 }