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.master;
20
21 import org.apache.hadoop.hbase.metrics.BaseSource;
22
23 public interface MetricsAssignmentManagerSource extends BaseSource {
24
25 /**
26 * The name of the metrics
27 */
28 String METRICS_NAME = "AssignmentManger";
29
30 /**
31 * The context metrics will be under.
32 */
33 String METRICS_CONTEXT = "master";
34
35 /**
36 * The name of the metrics context that metrics will be under in jmx
37 */
38 String METRICS_JMX_CONTEXT = "Master,sub=" + METRICS_NAME;
39
40 /**
41 * Description
42 */
43 String METRICS_DESCRIPTION = "Metrics about HBase master assingment manager.";
44
45 String RIT_COUNT_NAME = "ritCount";
46 String RIT_COUNT_OVER_THRESHOLD_NAME = "ritCountOverThreshold";
47 String RIT_OLDEST_AGE_NAME = "ritOldestAge";
48 String ASSIGN_TIME_NAME = "assign";
49 String BULK_ASSIGN_TIME_NAME = "bulkAssign";
50
51 void updateAssignmentTime(long time);
52
53 void updateBulkAssignTime(long time);
54
55 /**
56 * Set the number of regions in transition.
57 *
58 * @param ritCount count of the regions in transition.
59 */
60 void setRIT(int ritCount);
61
62 /**
63 * Set the count of the number of regions that have been in transition over the threshold time.
64 *
65 * @param ritCountOverThreshold number of regions in transition for longer than threshold.
66 */
67 void setRITCountOverThreshold(int ritCountOverThreshold);
68
69 /**
70 * Set the oldest region in transition.
71 *
72 * @param age age of the oldest RIT.
73 */
74 void setRITOldestAge(long age);
75 }