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109 changes: 109 additions & 0 deletions
109
...ster/src/test/java/org/apache/accumulo/master/metrics/Metrics2ReplicationMetricsTest.java
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| /* | ||
| * 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.accumulo.master.metrics; | ||
|
|
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| import java.lang.reflect.Field; | ||
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| import org.apache.accumulo.master.Master; | ||
| import org.apache.accumulo.server.fs.VolumeManager; | ||
| import org.apache.accumulo.server.replication.ReplicationUtil; | ||
| import org.apache.hadoop.fs.FileStatus; | ||
| import org.apache.hadoop.fs.Path; | ||
| import org.apache.hadoop.metrics2.MetricsSystem; | ||
| import org.apache.hadoop.metrics2.lib.MutableQuantiles; | ||
| import org.apache.hadoop.metrics2.lib.MutableStat; | ||
| import org.easymock.EasyMock; | ||
| import org.junit.Test; | ||
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| import com.google.common.collect.ImmutableSet; | ||
|
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| public class Metrics2ReplicationMetricsTest { | ||
| private long currentTime = 1000L; | ||
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| /** | ||
| * Extend the class to override the current time for testing | ||
| */ | ||
| public class TestMetrics2ReplicationMetrics extends Metrics2ReplicationMetrics { | ||
| TestMetrics2ReplicationMetrics(Master master, MetricsSystem system) { | ||
| super(master, system); | ||
| } | ||
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| @Override | ||
| public long getCurrentTime() { | ||
| return currentTime; | ||
| } | ||
| } | ||
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| @Test | ||
| public void testAddReplicationQueueTimeMetrics() throws Exception { | ||
| Master master = EasyMock.createMock(Master.class); | ||
| MetricsSystem system = EasyMock.createMock(MetricsSystem.class); | ||
| VolumeManager fileSystem = EasyMock.createMock(VolumeManager.class); | ||
| ReplicationUtil util = EasyMock.createMock(ReplicationUtil.class); | ||
| MutableStat stat = EasyMock.createMock(MutableStat.class); | ||
| MutableQuantiles quantiles = EasyMock.createMock(MutableQuantiles.class); | ||
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| Path path1 = new Path("hdfs://localhost:9000/accumulo/wal/file1"); | ||
| Path path2 = new Path("hdfs://localhost:9000/accumulo/wal/file2"); | ||
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| // First call will initialize the map of paths to modification time | ||
| EasyMock.expect(util.getPendingReplicationPaths()).andReturn(ImmutableSet.of(path1, path2)); | ||
| EasyMock.expect(master.getFileSystem()).andReturn(fileSystem); | ||
| EasyMock.expect(fileSystem.getFileStatus(path1)).andReturn(createStatus(100)); | ||
| EasyMock.expect(master.getFileSystem()).andReturn(fileSystem); | ||
| EasyMock.expect(fileSystem.getFileStatus(path2)).andReturn(createStatus(200)); | ||
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| // Second call will recognize the missing path1 and add the latency stat | ||
| EasyMock.expect(util.getPendingReplicationPaths()).andReturn(ImmutableSet.of(path2)); | ||
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| // Expect a call to reset the min/max | ||
| stat.resetMinMax(); | ||
| EasyMock.expectLastCall(); | ||
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| // Expect the calls of adding the stats | ||
| quantiles.add(currentTime - 100); | ||
| EasyMock.expectLastCall(); | ||
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| stat.add(currentTime - 100); | ||
| EasyMock.expectLastCall(); | ||
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| EasyMock.replay(master, system, fileSystem, util, stat, quantiles); | ||
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| Metrics2ReplicationMetrics metrics = new TestMetrics2ReplicationMetrics(master, system); | ||
|
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| // Inject our mock objects | ||
| replaceField(metrics, "replicationUtil", util); | ||
| replaceField(metrics, "replicationQueueTimeQuantiles", quantiles); | ||
| replaceField(metrics, "replicationQueueTimeStat", stat); | ||
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| // Two calls to this will initialize the map and then add metrics | ||
| metrics.addReplicationQueueTimeMetrics(); | ||
| metrics.addReplicationQueueTimeMetrics(); | ||
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| EasyMock.verify(master, system, fileSystem, util, stat, quantiles); | ||
| } | ||
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| private void replaceField(Object instance, String fieldName, Object target) throws NoSuchFieldException, IllegalAccessException { | ||
| Field field = instance.getClass().getSuperclass().getDeclaredField(fieldName); | ||
| field.setAccessible(true); | ||
| field.set(instance, target); | ||
| } | ||
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| private FileStatus createStatus(long modtime) { | ||
| return new FileStatus(0, false, 0, 0, modtime, 0, null, null, null, null); | ||
| } | ||
| } |