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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  
19  package org.apache.hadoop.hbase.replication.regionserver;
20  
21  import org.apache.hadoop.hbase.metrics.BaseSource;
22  
23  /**
24   * Provides access to gauges and counters. Implementers will hide the details of hadoop1 or
25   * hadoop2's metrics2 classes and publishing.
26   */
27  public interface MetricsReplicationSource extends BaseSource {
28    /**
29     * The name of the metrics
30     */
31    String METRICS_NAME = "Replication";
32  
33    /**
34     * The name of the metrics context that metrics will be under.
35     */
36    String METRICS_CONTEXT = "regionserver";
37  
38    /**
39     * The name of the metrics context that metrics will be under.
40     */
41    String METRICS_JMX_CONTEXT = "RegionServer,sub=" + METRICS_NAME;
42  
43    /**
44     * A description.
45     */
46    String METRICS_DESCRIPTION = "Metrics about HBase replication";
47  
48  }