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18 package org.apache.hadoop.hbase.master.metrics;
19
20 import java.io.IOException;
21
22 import org.apache.commons.logging.Log;
23 import org.apache.commons.logging.LogFactory;
24 import org.apache.hadoop.hbase.metrics.HBaseInfo;
25 import org.apache.hadoop.hbase.metrics.MetricsRate;
26 import org.apache.hadoop.hbase.metrics.PersistentMetricsTimeVaryingRate;
27 import org.apache.hadoop.metrics.ContextFactory;
28 import org.apache.hadoop.metrics.MetricsContext;
29 import org.apache.hadoop.metrics.MetricsRecord;
30 import org.apache.hadoop.metrics.MetricsUtil;
31 import org.apache.hadoop.metrics.Updater;
32 import org.apache.hadoop.metrics.jvm.JvmMetrics;
33 import org.apache.hadoop.metrics.util.MetricsLongValue;
34 import org.apache.hadoop.metrics.util.MetricsRegistry;
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44 public class MasterMetrics implements Updater {
45 private final Log LOG = LogFactory.getLog(this.getClass());
46 private final MetricsRecord metricsRecord;
47 private final MetricsRegistry registry = new MetricsRegistry();
48 private final MasterStatistics masterStatistics;
49
50 private long lastUpdate = System.currentTimeMillis();
51 private long lastExtUpdate = System.currentTimeMillis();
52 private long extendedPeriod = 0;
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57 private final MetricsRate cluster_requests =
58 new MetricsRate("cluster_requests", registry);
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60
61 final PersistentMetricsTimeVaryingRate splitTime =
62 new PersistentMetricsTimeVaryingRate("splitTime", registry);
63
64
65 final PersistentMetricsTimeVaryingRate splitSize =
66 new PersistentMetricsTimeVaryingRate("splitSize", registry);
67
68
69 final PersistentMetricsTimeVaryingRate snapshotTime =
70 new PersistentMetricsTimeVaryingRate("snapshotTime", registry);
71
72
73 final PersistentMetricsTimeVaryingRate snapshotRestoreTime =
74 new PersistentMetricsTimeVaryingRate("snapshotRestoreTime", registry);
75
76
77 final PersistentMetricsTimeVaryingRate snapshotCloneTime =
78 new PersistentMetricsTimeVaryingRate("snapshotCloneTime", registry);
79
80 public MasterMetrics(final String name) {
81 MetricsContext context = MetricsUtil.getContext("hbase");
82 metricsRecord = MetricsUtil.createRecord(context, "master");
83 metricsRecord.setTag("Master", name);
84 context.registerUpdater(this);
85 JvmMetrics.init("Master", name);
86 HBaseInfo.init();
87
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89 masterStatistics = new MasterStatistics(this.registry);
90
91
92 try {
93 Object m =
94 ContextFactory.getFactory().getAttribute("hbase.extendedperiod");
95 if (m instanceof String) {
96 this.extendedPeriod = Long.parseLong((String) m)*1000;
97 }
98 } catch (IOException ioe) {
99 LOG.info("Couldn't load ContextFactory for Metrics config info");
100 }
101
102 LOG.info("Initialized");
103 }
104
105 public void shutdown() {
106 if (masterStatistics != null)
107 masterStatistics.shutdown();
108 }
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115 public void doUpdates(MetricsContext unused) {
116 synchronized (this) {
117 this.lastUpdate = System.currentTimeMillis();
118
119
120 if (this.extendedPeriod > 0 &&
121 this.lastUpdate - this.lastExtUpdate >= this.extendedPeriod) {
122 this.lastExtUpdate = this.lastUpdate;
123 this.splitTime.resetMinMaxAvg();
124 this.splitSize.resetMinMaxAvg();
125 this.resetAllMinMax();
126 }
127
128 this.cluster_requests.pushMetric(metricsRecord);
129 this.splitTime.pushMetric(metricsRecord);
130 this.splitSize.pushMetric(metricsRecord);
131 }
132 this.metricsRecord.update();
133 }
134
135 public void resetAllMinMax() {
136
137 }
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144 public synchronized void addSplit(long time, long size) {
145 splitTime.inc(time);
146 splitSize.inc(size);
147 }
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152 public float getRequests() {
153 return this.cluster_requests.getPreviousIntervalValue();
154 }
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159 public void incrementRequests(final int inc) {
160 this.cluster_requests.inc(inc);
161 }
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167 public void addSnapshot(long time) {
168 snapshotTime.inc(time);
169 }
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175 public void addSnapshotRestore(long time) {
176 snapshotRestoreTime.inc(time);
177 }
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183 public void addSnapshotClone(long time) {
184 snapshotCloneTime.inc(time);
185 }
186 }