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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.util;</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.beans.IntrospectionException;</span> |
| <span class="source-line-no">021</span><span id="line-21">import java.io.IOException;</span> |
| <span class="source-line-no">022</span><span id="line-22">import java.io.PrintWriter;</span> |
| <span class="source-line-no">023</span><span id="line-23">import java.io.StringWriter;</span> |
| <span class="source-line-no">024</span><span id="line-24">import java.lang.management.GarbageCollectorMXBean;</span> |
| <span class="source-line-no">025</span><span id="line-25">import java.lang.management.ManagementFactory;</span> |
| <span class="source-line-no">026</span><span id="line-26">import java.lang.management.MemoryPoolMXBean;</span> |
| <span class="source-line-no">027</span><span id="line-27">import java.lang.management.RuntimeMXBean;</span> |
| <span class="source-line-no">028</span><span id="line-28">import java.util.Hashtable;</span> |
| <span class="source-line-no">029</span><span id="line-29">import java.util.List;</span> |
| <span class="source-line-no">030</span><span id="line-30">import java.util.Set;</span> |
| <span class="source-line-no">031</span><span id="line-31">import javax.management.InstanceNotFoundException;</span> |
| <span class="source-line-no">032</span><span id="line-32">import javax.management.MBeanAttributeInfo;</span> |
| <span class="source-line-no">033</span><span id="line-33">import javax.management.MBeanInfo;</span> |
| <span class="source-line-no">034</span><span id="line-34">import javax.management.MBeanServer;</span> |
| <span class="source-line-no">035</span><span id="line-35">import javax.management.MalformedObjectNameException;</span> |
| <span class="source-line-no">036</span><span id="line-36">import javax.management.ObjectName;</span> |
| <span class="source-line-no">037</span><span id="line-37">import javax.management.ReflectionException;</span> |
| <span class="source-line-no">038</span><span id="line-38">import javax.management.openmbean.CompositeData;</span> |
| <span class="source-line-no">039</span><span id="line-39">import org.apache.yetus.audience.InterfaceAudience;</span> |
| <span class="source-line-no">040</span><span id="line-40">import org.slf4j.Logger;</span> |
| <span class="source-line-no">041</span><span id="line-41">import org.slf4j.LoggerFactory;</span> |
| <span class="source-line-no">042</span><span id="line-42"></span> |
| <span class="source-line-no">043</span><span id="line-43">import org.apache.hbase.thirdparty.com.google.common.base.Splitter;</span> |
| <span class="source-line-no">044</span><span id="line-44">import org.apache.hbase.thirdparty.com.google.common.collect.Iterables;</span> |
| <span class="source-line-no">045</span><span id="line-45"></span> |
| <span class="source-line-no">046</span><span id="line-46">@InterfaceAudience.Private</span> |
| <span class="source-line-no">047</span><span id="line-47">public final class JSONMetricUtil {</span> |
| <span class="source-line-no">048</span><span id="line-48"></span> |
| <span class="source-line-no">049</span><span id="line-49"> private static final Logger LOG = LoggerFactory.getLogger(JSONMetricUtil.class);</span> |
| <span class="source-line-no">050</span><span id="line-50"></span> |
| <span class="source-line-no">051</span><span id="line-51"> private static MBeanServer mbServer = ManagementFactory.getPlatformMBeanServer();</span> |
| <span class="source-line-no">052</span><span id="line-52"> // MBeans ObjectName domain names</span> |
| <span class="source-line-no">053</span><span id="line-53"> public static final String JAVA_LANG_DOMAIN = "java.lang";</span> |
| <span class="source-line-no">054</span><span id="line-54"> public static final String JAVA_NIO_DOMAIN = "java.nio";</span> |
| <span class="source-line-no">055</span><span id="line-55"> public static final String SUN_MGMT_DOMAIN = "com.sun.management";</span> |
| <span class="source-line-no">056</span><span id="line-56"> public static final String HADOOP_DOMAIN = "Hadoop";</span> |
| <span class="source-line-no">057</span><span id="line-57"></span> |
| <span class="source-line-no">058</span><span id="line-58"> // MBeans ObjectName properties key names</span> |
| <span class="source-line-no">059</span><span id="line-59"> public static final String TYPE_KEY = "type";</span> |
| <span class="source-line-no">060</span><span id="line-60"> public static final String NAME_KEY = "name";</span> |
| <span class="source-line-no">061</span><span id="line-61"> public static final String SERVICE_KEY = "service";</span> |
| <span class="source-line-no">062</span><span id="line-62"> public static final String SUBSYSTEM_KEY = "sub";</span> |
| <span class="source-line-no">063</span><span id="line-63"></span> |
| <span class="source-line-no">064</span><span id="line-64"> /**</span> |
| <span class="source-line-no">065</span><span id="line-65"> * Utility for getting metric values. Collection of static methods intended for easier access to</span> |
| <span class="source-line-no">066</span><span id="line-66"> * metric values.</span> |
| <span class="source-line-no">067</span><span id="line-67"> */</span> |
| <span class="source-line-no">068</span><span id="line-68"> private JSONMetricUtil() {</span> |
| <span class="source-line-no">069</span><span id="line-69"> // Not to be called</span> |
| <span class="source-line-no">070</span><span id="line-70"> }</span> |
| <span class="source-line-no">071</span><span id="line-71"></span> |
| <span class="source-line-no">072</span><span id="line-72"> public static MBeanAttributeInfo[] getMBeanAttributeInfo(ObjectName bean)</span> |
| <span class="source-line-no">073</span><span id="line-73"> throws IntrospectionException, InstanceNotFoundException, ReflectionException,</span> |
| <span class="source-line-no">074</span><span id="line-74"> IntrospectionException, javax.management.IntrospectionException {</span> |
| <span class="source-line-no">075</span><span id="line-75"> MBeanInfo mbinfo = mbServer.getMBeanInfo(bean);</span> |
| <span class="source-line-no">076</span><span id="line-76"> return mbinfo.getAttributes();</span> |
| <span class="source-line-no">077</span><span id="line-77"> }</span> |
| <span class="source-line-no">078</span><span id="line-78"></span> |
| <span class="source-line-no">079</span><span id="line-79"> public static Object getValueFromMBean(ObjectName bean, String attribute) {</span> |
| <span class="source-line-no">080</span><span id="line-80"> Object value = null;</span> |
| <span class="source-line-no">081</span><span id="line-81"> try {</span> |
| <span class="source-line-no">082</span><span id="line-82"> value = mbServer.getAttribute(bean, attribute);</span> |
| <span class="source-line-no">083</span><span id="line-83"> } catch (Exception e) {</span> |
| <span class="source-line-no">084</span><span id="line-84"> LOG.error("Unable to get value from MBean= " + bean.toString() + "for attribute=" + attribute</span> |
| <span class="source-line-no">085</span><span id="line-85"> + " " + e.getMessage());</span> |
| <span class="source-line-no">086</span><span id="line-86"> }</span> |
| <span class="source-line-no">087</span><span id="line-87"> return value;</span> |
| <span class="source-line-no">088</span><span id="line-88"> }</span> |
| <span class="source-line-no">089</span><span id="line-89"></span> |
| <span class="source-line-no">090</span><span id="line-90"> /**</span> |
| <span class="source-line-no">091</span><span id="line-91"> * Returns a subset of mbeans defined by qry. Modeled after DumpRegionServerMetrics#dumpMetrics.</span> |
| <span class="source-line-no">092</span><span id="line-92"> * Example: String qry= "java.lang:type=Memory"</span> |
| <span class="source-line-no">093</span><span id="line-93"> * @throws MalformedObjectNameException if json have bad format</span> |
| <span class="source-line-no">094</span><span id="line-94"> * @throws IOException /</span> |
| <span class="source-line-no">095</span><span id="line-95"> * @return String representation of json array.</span> |
| <span class="source-line-no">096</span><span id="line-96"> */</span> |
| <span class="source-line-no">097</span><span id="line-97"> public static String dumpBeanToString(String qry)</span> |
| <span class="source-line-no">098</span><span id="line-98"> throws MalformedObjectNameException, IOException {</span> |
| <span class="source-line-no">099</span><span id="line-99"> StringWriter sw = new StringWriter(1024 * 100); // Guess this size</span> |
| <span class="source-line-no">100</span><span id="line-100"> try (PrintWriter writer = new PrintWriter(sw)) {</span> |
| <span class="source-line-no">101</span><span id="line-101"> JSONBean dumper = new JSONBean();</span> |
| <span class="source-line-no">102</span><span id="line-102"> try (JSONBean.Writer jsonBeanWriter = dumper.open(writer)) {</span> |
| <span class="source-line-no">103</span><span id="line-103"> MBeanServer mbeanServer = ManagementFactory.getPlatformMBeanServer();</span> |
| <span class="source-line-no">104</span><span id="line-104"> jsonBeanWriter.write(mbeanServer, new ObjectName(qry), null, false);</span> |
| <span class="source-line-no">105</span><span id="line-105"> }</span> |
| <span class="source-line-no">106</span><span id="line-106"> }</span> |
| <span class="source-line-no">107</span><span id="line-107"> sw.close();</span> |
| <span class="source-line-no">108</span><span id="line-108"> return sw.toString();</span> |
| <span class="source-line-no">109</span><span id="line-109"> }</span> |
| <span class="source-line-no">110</span><span id="line-110"></span> |
| <span class="source-line-no">111</span><span id="line-111"> /**</span> |
| <span class="source-line-no">112</span><span id="line-112"> * Method for building map used for constructing ObjectName. Mapping is done with arrays indices</span> |
| <span class="source-line-no">113</span><span id="line-113"> * @param keys Map keys</span> |
| <span class="source-line-no">114</span><span id="line-114"> * @param values Map values</span> |
| <span class="source-line-no">115</span><span id="line-115"> * @return Map or null if arrays are empty or have different number of elements</span> |
| <span class="source-line-no">116</span><span id="line-116"> */</span> |
| <span class="source-line-no">117</span><span id="line-117"> @SuppressWarnings("JdkObsolete") // javax requires hashtable param for ObjectName constructor</span> |
| <span class="source-line-no">118</span><span id="line-118"> public static Hashtable<String, String> buldKeyValueTable(String[] keys, String[] values) {</span> |
| <span class="source-line-no">119</span><span id="line-119"> if (keys.length != values.length) {</span> |
| <span class="source-line-no">120</span><span id="line-120"> LOG.error("keys and values arrays must be same size");</span> |
| <span class="source-line-no">121</span><span id="line-121"> return null;</span> |
| <span class="source-line-no">122</span><span id="line-122"> }</span> |
| <span class="source-line-no">123</span><span id="line-123"> if (keys.length == 0 || values.length == 0) {</span> |
| <span class="source-line-no">124</span><span id="line-124"> LOG.error("keys and values arrays can not be empty;");</span> |
| <span class="source-line-no">125</span><span id="line-125"> return null;</span> |
| <span class="source-line-no">126</span><span id="line-126"> }</span> |
| <span class="source-line-no">127</span><span id="line-127"> Hashtable<String, String> table = new Hashtable<>();</span> |
| <span class="source-line-no">128</span><span id="line-128"> for (int i = 0; i < keys.length; i++) {</span> |
| <span class="source-line-no">129</span><span id="line-129"> table.put(keys[i], values[i]);</span> |
| <span class="source-line-no">130</span><span id="line-130"> }</span> |
| <span class="source-line-no">131</span><span id="line-131"> return table;</span> |
| <span class="source-line-no">132</span><span id="line-132"> }</span> |
| <span class="source-line-no">133</span><span id="line-133"></span> |
| <span class="source-line-no">134</span><span id="line-134"> public static ObjectName buildObjectName(String pattern) throws MalformedObjectNameException {</span> |
| <span class="source-line-no">135</span><span id="line-135"> return new ObjectName(pattern);</span> |
| <span class="source-line-no">136</span><span id="line-136"> }</span> |
| <span class="source-line-no">137</span><span id="line-137"></span> |
| <span class="source-line-no">138</span><span id="line-138"> public static ObjectName buildObjectName(String domain, Hashtable<String, String> keyValueTable)</span> |
| <span class="source-line-no">139</span><span id="line-139"> throws MalformedObjectNameException {</span> |
| <span class="source-line-no">140</span><span id="line-140"> return new ObjectName(domain, keyValueTable);</span> |
| <span class="source-line-no">141</span><span id="line-141"> }</span> |
| <span class="source-line-no">142</span><span id="line-142"></span> |
| <span class="source-line-no">143</span><span id="line-143"> public static Set<ObjectName> getRegistredMBeans(ObjectName name, MBeanServer mbs) {</span> |
| <span class="source-line-no">144</span><span id="line-144"> return mbs.queryNames(name, null);</span> |
| <span class="source-line-no">145</span><span id="line-145"> }</span> |
| <span class="source-line-no">146</span><span id="line-146"></span> |
| <span class="source-line-no">147</span><span id="line-147"> public static String getProcessPID() {</span> |
| <span class="source-line-no">148</span><span id="line-148"> return Iterables.get(Splitter.on('@').split(ManagementFactory.getRuntimeMXBean().getName()), 0);</span> |
| <span class="source-line-no">149</span><span id="line-149"> }</span> |
| <span class="source-line-no">150</span><span id="line-150"></span> |
| <span class="source-line-no">151</span><span id="line-151"> public static String getCommmand() throws MalformedObjectNameException, IOException {</span> |
| <span class="source-line-no">152</span><span id="line-152"> RuntimeMXBean runtimeBean = ManagementFactory.getRuntimeMXBean();</span> |
| <span class="source-line-no">153</span><span id="line-153"> return runtimeBean.getSystemProperties().get("sun.java.command");</span> |
| <span class="source-line-no">154</span><span id="line-154"> }</span> |
| <span class="source-line-no">155</span><span id="line-155"></span> |
| <span class="source-line-no">156</span><span id="line-156"> public static List<GarbageCollectorMXBean> getGcCollectorBeans() {</span> |
| <span class="source-line-no">157</span><span id="line-157"> List<GarbageCollectorMXBean> gcBeans = ManagementFactory.getGarbageCollectorMXBeans();</span> |
| <span class="source-line-no">158</span><span id="line-158"> return gcBeans;</span> |
| <span class="source-line-no">159</span><span id="line-159"> }</span> |
| <span class="source-line-no">160</span><span id="line-160"></span> |
| <span class="source-line-no">161</span><span id="line-161"> public static long getLastGcDuration(ObjectName gcCollector) {</span> |
| <span class="source-line-no">162</span><span id="line-162"> long lastGcDuration = 0;</span> |
| <span class="source-line-no">163</span><span id="line-163"> Object lastGcInfo = getValueFromMBean(gcCollector, "LastGcInfo");</span> |
| <span class="source-line-no">164</span><span id="line-164"> if (lastGcInfo != null && lastGcInfo instanceof CompositeData) {</span> |
| <span class="source-line-no">165</span><span id="line-165"> CompositeData cds = (CompositeData) lastGcInfo;</span> |
| <span class="source-line-no">166</span><span id="line-166"> lastGcDuration = (long) cds.get("duration");</span> |
| <span class="source-line-no">167</span><span id="line-167"> }</span> |
| <span class="source-line-no">168</span><span id="line-168"> return lastGcDuration;</span> |
| <span class="source-line-no">169</span><span id="line-169"> }</span> |
| <span class="source-line-no">170</span><span id="line-170"></span> |
| <span class="source-line-no">171</span><span id="line-171"> public static List<MemoryPoolMXBean> getMemoryPools() {</span> |
| <span class="source-line-no">172</span><span id="line-172"> List<MemoryPoolMXBean> mPools = ManagementFactory.getMemoryPoolMXBeans();</span> |
| <span class="source-line-no">173</span><span id="line-173"> return mPools;</span> |
| <span class="source-line-no">174</span><span id="line-174"> }</span> |
| <span class="source-line-no">175</span><span id="line-175"></span> |
| <span class="source-line-no">176</span><span id="line-176"> public static float calcPercentage(long a, long b) {</span> |
| <span class="source-line-no">177</span><span id="line-177"> if (a == 0 || b == 0) {</span> |
| <span class="source-line-no">178</span><span id="line-178"> return 0;</span> |
| <span class="source-line-no">179</span><span id="line-179"> }</span> |
| <span class="source-line-no">180</span><span id="line-180"> return ((float) a / (float) b) * 100;</span> |
| <span class="source-line-no">181</span><span id="line-181"> }</span> |
| <span class="source-line-no">182</span><span id="line-182">}</span> |
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| </pre> |
| </div> |
| </main> |
| </body> |
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