| package org.apache.helix.monitoring.mbeans; |
| |
| /* |
| * 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. |
| */ |
| |
| import java.lang.management.ManagementFactory; |
| import java.util.HashSet; |
| import java.util.Set; |
| import javax.management.AttributeNotFoundException; |
| import javax.management.JMException; |
| import javax.management.MBeanServer; |
| import javax.management.MalformedObjectNameException; |
| import javax.management.ObjectName; |
| |
| import org.apache.helix.PropertyType; |
| import org.testng.Assert; |
| import org.testng.annotations.Test; |
| |
| public class TestRoutingTableProviderMonitor { |
| |
| private MBeanServer _beanServer = ManagementFactory.getPlatformMBeanServer(); |
| |
| private final String TEST_CLUSTER = "test_cluster"; |
| |
| private ObjectName buildObjectName(PropertyType type, String cluster) |
| throws MalformedObjectNameException { |
| return MBeanRegistrar.buildObjectName(MonitorDomainNames.RoutingTableProvider.name(), |
| RoutingTableProviderMonitor.CLUSTER_KEY, cluster, RoutingTableProviderMonitor.DATA_TYPE_KEY, |
| type.name()); |
| } |
| |
| private ObjectName buildObjectName(PropertyType type, String cluster, int num) |
| throws MalformedObjectNameException { |
| ObjectName objectName = buildObjectName(type, cluster); |
| if (num > 0) { |
| return new ObjectName(String |
| .format("%s,%s=%s", objectName.toString(), MBeanRegistrar.DUPLICATE, |
| String.valueOf(num))); |
| } else { |
| return objectName; |
| } |
| } |
| |
| @Test |
| public void testMBeanRegisteration() throws JMException { |
| Set<RoutingTableProviderMonitor> monitors = new HashSet<>(); |
| for (PropertyType type : PropertyType.values()) { |
| monitors.add(new RoutingTableProviderMonitor(type, TEST_CLUSTER).register()); |
| Assert.assertTrue(_beanServer.isRegistered(buildObjectName(type, TEST_CLUSTER))); |
| } |
| |
| for (PropertyType type : PropertyType.values()) { |
| monitors.add(new RoutingTableProviderMonitor(type, TEST_CLUSTER).register()); |
| Assert.assertTrue(_beanServer.isRegistered(buildObjectName(type, TEST_CLUSTER, 1))); |
| } |
| |
| for (PropertyType type : PropertyType.values()) { |
| monitors.add(new RoutingTableProviderMonitor(type, TEST_CLUSTER).register()); |
| Assert.assertTrue(_beanServer.isRegistered(buildObjectName(type, TEST_CLUSTER, 2))); |
| } |
| |
| // Un-register all monitors |
| for (RoutingTableProviderMonitor monitor : monitors) { |
| monitor.unregister(); |
| } |
| |
| for (PropertyType type : PropertyType.values()) { |
| Assert.assertFalse(_beanServer.isRegistered(buildObjectName(type, TEST_CLUSTER))); |
| Assert.assertFalse(_beanServer.isRegistered(buildObjectName(type, TEST_CLUSTER, 1))); |
| Assert.assertFalse(_beanServer.isRegistered(buildObjectName(type, TEST_CLUSTER, 2))); |
| } |
| } |
| |
| @Test |
| public void testMetrics() throws JMException, InterruptedException { |
| PropertyType type = PropertyType.EXTERNALVIEW; |
| RoutingTableProviderMonitor monitor = new RoutingTableProviderMonitor(type, TEST_CLUSTER); |
| monitor.register(); |
| ObjectName name = buildObjectName(type, TEST_CLUSTER); |
| |
| monitor.increaseCallbackCounters(10); |
| Assert.assertEquals((long) _beanServer.getAttribute(name, "CallbackCounter"), 1); |
| Assert.assertEquals((long) _beanServer.getAttribute(name, "EventQueueSizeGauge"), 10); |
| monitor.increaseCallbackCounters(15); |
| Assert.assertEquals((long) _beanServer.getAttribute(name, "CallbackCounter"), 2); |
| Assert.assertEquals((long) _beanServer.getAttribute(name, "EventQueueSizeGauge"), 15); |
| Assert.assertEquals((long) _beanServer.getAttribute(name, "DataRefreshLatencyGauge.Max"), 0); |
| Assert.assertEquals((long) _beanServer.getAttribute(name, "DataRefreshCounter"), 0); |
| |
| // StatePropagationLatencyGauge only apply for current state |
| try { |
| _beanServer.getAttribute(name, "StatePropagationLatencyGauge.Max"); |
| Assert.fail(); |
| } catch (AttributeNotFoundException ex) { |
| // Expected AttributeNotFoundException because the metric does not exist in |
| // MBean server. |
| } |
| |
| long startTime = System.currentTimeMillis(); |
| Thread.sleep(5); |
| monitor.increaseDataRefreshCounters(startTime); |
| long latency = (long) _beanServer.getAttribute(name, "DataRefreshLatencyGauge.Max"); |
| Assert.assertTrue(latency >= 5 && latency <= System.currentTimeMillis() - startTime); |
| Assert.assertEquals((long) _beanServer.getAttribute(name, "DataRefreshCounter"), 1); |
| |
| monitor.increaseDataRefreshCounters(startTime); |
| long newLatency = (long) _beanServer.getAttribute(name, "DataRefreshLatencyGauge.Max"); |
| Assert.assertTrue(newLatency >= latency); |
| Assert.assertEquals((long) _beanServer.getAttribute(name, "DataRefreshCounter"), 2); |
| |
| monitor.unregister(); |
| } |
| |
| public void testCurrentStateMetrics() throws JMException, InterruptedException { |
| PropertyType type = PropertyType.CURRENTSTATES; |
| RoutingTableProviderMonitor monitor = new RoutingTableProviderMonitor(type, TEST_CLUSTER); |
| monitor.register(); |
| ObjectName name = buildObjectName(type, TEST_CLUSTER); |
| |
| monitor.increaseCallbackCounters(10); |
| Assert.assertEquals((long) _beanServer.getAttribute(name, "StatePropagationLatencyGauge.Max"), 0); |
| |
| monitor.recordStatePropagationLatency(5); |
| long statelatency = (long) _beanServer.getAttribute(name, "StatePropagationLatencyGauge.Max"); |
| Assert.assertEquals(statelatency, 5); |
| monitor.recordStatePropagationLatency(10); |
| statelatency = (long) _beanServer.getAttribute(name, "StatePropagationLatencyGauge.Max"); |
| Assert.assertEquals(statelatency, 10); |
| |
| monitor.unregister(); |
| } |
| } |