| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.drill.exec.metrics; |
| |
| import java.lang.management.ManagementFactory; |
| import java.lang.management.RuntimeMXBean; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import com.codahale.metrics.Gauge; |
| import com.codahale.metrics.Metric; |
| import com.codahale.metrics.MetricSet; |
| import com.sun.management.OperatingSystemMXBean; |
| |
| /** |
| * Creates a Cpu GaugeSet |
| */ |
| @SuppressWarnings("restriction") |
| public class CpuGaugeSet implements MetricSet { |
| private static final org.slf4j.Logger logger = org.slf4j.LoggerFactory.getLogger(CpuGaugeSet.class); |
| |
| private final OperatingSystemMXBean osMXBean; |
| private final RuntimeMXBean rtMXBean; |
| |
| public CpuGaugeSet() { |
| this.rtMXBean = ManagementFactory.getRuntimeMXBean(); |
| //DRILL-6702: Instead of worrying about compiling with IBM JDK, for now, we shall provide no CPU metrics for non-HotSpot JVMs |
| this.osMXBean = getOSMXBeanForCpuMetrics(); |
| } |
| |
| @Override |
| public Map<String, Metric> getMetrics() { |
| final Map<String, Metric> metric = new HashMap<>(1); |
| metric.put("os.load.avg", new OperatingSystemLoad(osMXBean)); |
| metric.put("drillbit.load.avg", new DrillbitProcessLoad(osMXBean)); |
| metric.put("drillbit.uptime", new DrillbitUptime(rtMXBean)); |
| return metric; |
| } |
| |
| private static OperatingSystemMXBean getOSMXBeanForCpuMetrics() { |
| try { |
| return (OperatingSystemMXBean) ManagementFactory.getOperatingSystemMXBean(); |
| } catch (ClassCastException ex) { |
| logger.warn("{}. Detected non-Supported JVM [{}]. CPU Metrics in the WebUI will not be available!", ex.getMessage(), System.getProperty("java.vm.name")); |
| } |
| return null; |
| } |
| } |
| |
| /** |
| * Creating an AverageSystemLoad Gauge |
| */ |
| @SuppressWarnings("restriction") |
| final class OperatingSystemLoad implements Gauge<Double> { |
| private OperatingSystemMXBean osMXBean; |
| public OperatingSystemLoad(OperatingSystemMXBean osBean) { |
| this.osMXBean = osBean; |
| } |
| |
| @Override |
| public Double getValue() { |
| return (osMXBean != null) ? osMXBean.getSystemLoadAverage() : null; |
| } |
| |
| } |
| |
| /** |
| * Creating an AverageDrillbitLoad Gauge |
| */ |
| @SuppressWarnings("restriction") |
| final class DrillbitProcessLoad implements Gauge<Double> { |
| private OperatingSystemMXBean osMXBean; |
| public DrillbitProcessLoad(OperatingSystemMXBean osBean) { |
| this.osMXBean = osBean; |
| } |
| |
| @Override |
| public Double getValue() { |
| return (osMXBean != null) ? osMXBean.getProcessCpuLoad() : null; |
| } |
| |
| } |
| /** |
| * Creating an DrillbitUptime Gauge |
| */ |
| final class DrillbitUptime implements Gauge<Long> { |
| private RuntimeMXBean rtMXBean; |
| public DrillbitUptime(RuntimeMXBean osBean) { |
| this.rtMXBean = osBean; |
| } |
| |
| @Override |
| public Long getValue() { |
| return rtMXBean.getUptime(); |
| } |
| |
| } |