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Add shuffle metrics for parallel indexing (#10359)
* Add shuffle metrics for parallel indexing * javadoc and concurrency test * concurrency * fix javadoc * Feature flag * doc * fix doc and add a test * checkstyle * add tests * fix build and address comments
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core/src/test/java/org/apache/druid/java/util/metrics/MonitorSchedulerTest.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,86 @@ | ||
| /* | ||
| * 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. | ||
| */ | ||
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| package org.apache.druid.java.util.metrics; | ||
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| import com.google.common.collect.ImmutableList; | ||
| import org.apache.druid.java.util.common.concurrent.Execs; | ||
| import org.apache.druid.java.util.emitter.service.ServiceEmitter; | ||
| import org.junit.Assert; | ||
| import org.junit.Test; | ||
| import org.mockito.Mockito; | ||
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| import java.util.Optional; | ||
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| public class MonitorSchedulerTest | ||
| { | ||
| @Test | ||
| public void testFindMonitor() | ||
| { | ||
| class Monitor1 extends NoopMonitor | ||
| { | ||
| } | ||
| class Monitor2 extends NoopMonitor | ||
| { | ||
| } | ||
| class Monitor3 extends NoopMonitor | ||
| { | ||
| } | ||
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| final Monitor1 monitor1 = new Monitor1(); | ||
| final Monitor2 monitor2 = new Monitor2(); | ||
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| final MonitorScheduler scheduler = new MonitorScheduler( | ||
| Mockito.mock(MonitorSchedulerConfig.class), | ||
| Execs.scheduledSingleThreaded("monitor-scheduler-test"), | ||
| Mockito.mock(ServiceEmitter.class), | ||
| ImmutableList.of(monitor1, monitor2) | ||
| ); | ||
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| final Optional<Monitor1> maybeFound1 = scheduler.findMonitor(Monitor1.class); | ||
| final Optional<Monitor2> maybeFound2 = scheduler.findMonitor(Monitor2.class); | ||
| Assert.assertTrue(maybeFound1.isPresent()); | ||
| Assert.assertTrue(maybeFound2.isPresent()); | ||
| Assert.assertSame(monitor1, maybeFound1.get()); | ||
| Assert.assertSame(monitor2, maybeFound2.get()); | ||
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| Assert.assertFalse(scheduler.findMonitor(Monitor3.class).isPresent()); | ||
| } | ||
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| private static class NoopMonitor implements Monitor | ||
| { | ||
| @Override | ||
| public void start() | ||
| { | ||
|
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| } | ||
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| @Override | ||
| public void stop() | ||
| { | ||
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| } | ||
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| @Override | ||
| public boolean monitor(ServiceEmitter emitter) | ||
| { | ||
| return true; | ||
| } | ||
| } | ||
| } |
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