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| <pre><span class="source-line-no">001</span><span id="line-1">/*</span> |
| <span class="source-line-no">002</span><span id="line-2"> * Licensed to the Apache Software Foundation (ASF) under one</span> |
| <span class="source-line-no">003</span><span id="line-3"> * or more contributor license agreements. See the NOTICE file</span> |
| <span class="source-line-no">004</span><span id="line-4"> * distributed with this work for additional information</span> |
| <span class="source-line-no">005</span><span id="line-5"> * regarding copyright ownership. The ASF licenses this file</span> |
| <span class="source-line-no">006</span><span id="line-6"> * to you under the Apache License, Version 2.0 (the</span> |
| <span class="source-line-no">007</span><span id="line-7"> * "License"); you may not use this file except in compliance</span> |
| <span class="source-line-no">008</span><span id="line-8"> * with the License. You may obtain a copy of the License at</span> |
| <span class="source-line-no">009</span><span id="line-9"> *</span> |
| <span class="source-line-no">010</span><span id="line-10"> * http://www.apache.org/licenses/LICENSE-2.0</span> |
| <span class="source-line-no">011</span><span id="line-11"> *</span> |
| <span class="source-line-no">012</span><span id="line-12"> * Unless required by applicable law or agreed to in writing, software</span> |
| <span class="source-line-no">013</span><span id="line-13"> * distributed under the License is distributed on an "AS IS" BASIS,</span> |
| <span class="source-line-no">014</span><span id="line-14"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span> |
| <span class="source-line-no">015</span><span id="line-15"> * See the License for the specific language governing permissions and</span> |
| <span class="source-line-no">016</span><span id="line-16"> * limitations under the License.</span> |
| <span class="source-line-no">017</span><span id="line-17"> */</span> |
| <span class="source-line-no">018</span><span id="line-18">package org.apache.hadoop.hbase.regionserver;</span> |
| <span class="source-line-no">019</span><span id="line-19"></span> |
| <span class="source-line-no">020</span><span id="line-20">import java.util.concurrent.ConcurrentHashMap;</span> |
| <span class="source-line-no">021</span><span id="line-21">import org.apache.hadoop.hbase.CompatibilitySingletonFactory;</span> |
| <span class="source-line-no">022</span><span id="line-22">import org.apache.hadoop.hbase.metrics.BaseSourceImpl;</span> |
| <span class="source-line-no">023</span><span id="line-23">import org.apache.hadoop.hbase.metrics.Interns;</span> |
| <span class="source-line-no">024</span><span id="line-24">import org.apache.hadoop.metrics2.MetricsCollector;</span> |
| <span class="source-line-no">025</span><span id="line-25">import org.apache.hadoop.metrics2.MetricsRecordBuilder;</span> |
| <span class="source-line-no">026</span><span id="line-26">import org.apache.yetus.audience.InterfaceAudience;</span> |
| <span class="source-line-no">027</span><span id="line-27">import org.slf4j.Logger;</span> |
| <span class="source-line-no">028</span><span id="line-28">import org.slf4j.LoggerFactory;</span> |
| <span class="source-line-no">029</span><span id="line-29"></span> |
| <span class="source-line-no">030</span><span id="line-30">@InterfaceAudience.Private</span> |
| <span class="source-line-no">031</span><span id="line-31">public class MetricsTableAggregateSourceImpl extends BaseSourceImpl</span> |
| <span class="source-line-no">032</span><span id="line-32"> implements MetricsTableAggregateSource {</span> |
| <span class="source-line-no">033</span><span id="line-33"></span> |
| <span class="source-line-no">034</span><span id="line-34"> private static final Logger LOG = LoggerFactory.getLogger(MetricsTableAggregateSourceImpl.class);</span> |
| <span class="source-line-no">035</span><span id="line-35"> private ConcurrentHashMap<String, MetricsTableSource> tableSources = new ConcurrentHashMap<>();</span> |
| <span class="source-line-no">036</span><span id="line-36"></span> |
| <span class="source-line-no">037</span><span id="line-37"> public MetricsTableAggregateSourceImpl() {</span> |
| <span class="source-line-no">038</span><span id="line-38"> this(METRICS_NAME, METRICS_DESCRIPTION, METRICS_CONTEXT, METRICS_JMX_CONTEXT);</span> |
| <span class="source-line-no">039</span><span id="line-39"> }</span> |
| <span class="source-line-no">040</span><span id="line-40"></span> |
| <span class="source-line-no">041</span><span id="line-41"> public MetricsTableAggregateSourceImpl(String metricsName, String metricsDescription,</span> |
| <span class="source-line-no">042</span><span id="line-42"> String metricsContext, String metricsJmxContext) {</span> |
| <span class="source-line-no">043</span><span id="line-43"> super(metricsName, metricsDescription, metricsContext, metricsJmxContext);</span> |
| <span class="source-line-no">044</span><span id="line-44"> }</span> |
| <span class="source-line-no">045</span><span id="line-45"></span> |
| <span class="source-line-no">046</span><span id="line-46"> @Override</span> |
| <span class="source-line-no">047</span><span id="line-47"> public void deleteTableSource(String table) {</span> |
| <span class="source-line-no">048</span><span id="line-48"> try {</span> |
| <span class="source-line-no">049</span><span id="line-49"> MetricsTableSource source = tableSources.remove(table);</span> |
| <span class="source-line-no">050</span><span id="line-50"> if (source != null) {</span> |
| <span class="source-line-no">051</span><span id="line-51"> source.close();</span> |
| <span class="source-line-no">052</span><span id="line-52"> }</span> |
| <span class="source-line-no">053</span><span id="line-53"> } catch (Exception e) {</span> |
| <span class="source-line-no">054</span><span id="line-54"> // Ignored. If this errors out it means that someone is double</span> |
| <span class="source-line-no">055</span><span id="line-55"> // closing the user source and the user metrics is already nulled out.</span> |
| <span class="source-line-no">056</span><span id="line-56"> LOG.info("Error trying to remove " + table + " from " + getClass().getSimpleName(), e);</span> |
| <span class="source-line-no">057</span><span id="line-57"> }</span> |
| <span class="source-line-no">058</span><span id="line-58"> }</span> |
| <span class="source-line-no">059</span><span id="line-59"></span> |
| <span class="source-line-no">060</span><span id="line-60"> @Override</span> |
| <span class="source-line-no">061</span><span id="line-61"> public MetricsTableSource getOrCreateTableSource(String table,</span> |
| <span class="source-line-no">062</span><span id="line-62"> MetricsTableWrapperAggregate wrapper) {</span> |
| <span class="source-line-no">063</span><span id="line-63"> MetricsTableSource source = tableSources.get(table);</span> |
| <span class="source-line-no">064</span><span id="line-64"> if (source != null) {</span> |
| <span class="source-line-no">065</span><span id="line-65"> return source;</span> |
| <span class="source-line-no">066</span><span id="line-66"> }</span> |
| <span class="source-line-no">067</span><span id="line-67"> MetricsTableSource newSource = CompatibilitySingletonFactory</span> |
| <span class="source-line-no">068</span><span id="line-68"> .getInstance(MetricsRegionServerSourceFactory.class).createTable(table, wrapper);</span> |
| <span class="source-line-no">069</span><span id="line-69"> return tableSources.computeIfAbsent(table, k -> {</span> |
| <span class="source-line-no">070</span><span id="line-70"> // register the new metrics now</span> |
| <span class="source-line-no">071</span><span id="line-71"> newSource.registerMetrics();</span> |
| <span class="source-line-no">072</span><span id="line-72"> return newSource;</span> |
| <span class="source-line-no">073</span><span id="line-73"> });</span> |
| <span class="source-line-no">074</span><span id="line-74"> }</span> |
| <span class="source-line-no">075</span><span id="line-75"></span> |
| <span class="source-line-no">076</span><span id="line-76"> /**</span> |
| <span class="source-line-no">077</span><span id="line-77"> * Yes this is a get function that doesn't return anything. Thanks Hadoop for breaking all</span> |
| <span class="source-line-no">078</span><span id="line-78"> * expectations of java programmers. Instead of returning anything Hadoop metrics expects</span> |
| <span class="source-line-no">079</span><span id="line-79"> * getMetrics to push the metrics into the collector.</span> |
| <span class="source-line-no">080</span><span id="line-80"> * @param collector the collector</span> |
| <span class="source-line-no">081</span><span id="line-81"> * @param all get all the metrics regardless of when they last changed.</span> |
| <span class="source-line-no">082</span><span id="line-82"> */</span> |
| <span class="source-line-no">083</span><span id="line-83"> @Override</span> |
| <span class="source-line-no">084</span><span id="line-84"> public void getMetrics(MetricsCollector collector, boolean all) {</span> |
| <span class="source-line-no">085</span><span id="line-85"> MetricsRecordBuilder mrb = collector.addRecord(metricsName);</span> |
| <span class="source-line-no">086</span><span id="line-86"> if (tableSources != null) {</span> |
| <span class="source-line-no">087</span><span id="line-87"> for (MetricsTableSource tableMetricSource : tableSources.values()) {</span> |
| <span class="source-line-no">088</span><span id="line-88"> if (tableMetricSource instanceof MetricsTableSourceImpl) {</span> |
| <span class="source-line-no">089</span><span id="line-89"> ((MetricsTableSourceImpl) tableMetricSource).snapshot(mrb, all);</span> |
| <span class="source-line-no">090</span><span id="line-90"> }</span> |
| <span class="source-line-no">091</span><span id="line-91"> }</span> |
| <span class="source-line-no">092</span><span id="line-92"> mrb.addGauge(Interns.info(NUM_TABLES, NUMBER_OF_TABLES_DESC), tableSources.size());</span> |
| <span class="source-line-no">093</span><span id="line-93"> metricsRegistry.snapshot(mrb, all);</span> |
| <span class="source-line-no">094</span><span id="line-94"> }</span> |
| <span class="source-line-no">095</span><span id="line-95"> }</span> |
| <span class="source-line-no">096</span><span id="line-96">}</span> |
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| </pre> |
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