| /* |
| * 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.druid.server.coordination; |
| |
| import com.fasterxml.jackson.databind.ObjectMapper; |
| import com.google.common.collect.ImmutableMap; |
| import org.apache.curator.utils.ZKPaths; |
| import org.apache.druid.curator.CuratorTestBase; |
| import org.apache.druid.guice.ServerTypeConfig; |
| import org.apache.druid.java.util.common.Intervals; |
| import org.apache.druid.java.util.common.logger.Logger; |
| import org.apache.druid.java.util.emitter.EmittingLogger; |
| import org.apache.druid.segment.IndexIO; |
| import org.apache.druid.segment.loading.SegmentCacheManager; |
| import org.apache.druid.segment.loading.SegmentLoaderConfig; |
| import org.apache.druid.segment.loading.StorageLocationConfig; |
| import org.apache.druid.server.SegmentManager; |
| import org.apache.druid.server.ServerTestHelper; |
| import org.apache.druid.server.initialization.ZkPathsConfig; |
| import org.apache.druid.server.metrics.NoopServiceEmitter; |
| import org.apache.druid.timeline.DataSegment; |
| import org.apache.druid.timeline.partition.NoneShardSpec; |
| import org.apache.zookeeper.CreateMode; |
| import org.easymock.EasyMock; |
| import org.junit.After; |
| import org.junit.Before; |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.junit.rules.TemporaryFolder; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.util.Arrays; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.concurrent.CountDownLatch; |
| import java.util.concurrent.ScheduledExecutorService; |
| |
| /** |
| */ |
| public class ZkCoordinatorTest extends CuratorTestBase |
| { |
| private static final Logger log = new Logger(ZkCoordinatorTest.class); |
| |
| private final ObjectMapper jsonMapper = ServerTestHelper.MAPPER; |
| private final DruidServerMetadata me = new DruidServerMetadata( |
| "dummyServer", |
| "dummyHost", |
| null, |
| 0, |
| ServerType.HISTORICAL, |
| "normal", |
| 0 |
| ); |
| private final ZkPathsConfig zkPaths = new ZkPathsConfig() |
| { |
| @Override |
| public String getBase() |
| { |
| return "/druid"; |
| } |
| }; |
| private ZkCoordinator zkCoordinator; |
| |
| private File infoDir; |
| private List<StorageLocationConfig> locations; |
| |
| @Rule |
| public TemporaryFolder temporaryFolder = new TemporaryFolder(); |
| |
| @Before |
| public void setUp() throws Exception |
| { |
| try { |
| infoDir = temporaryFolder.newFolder(); |
| log.info("Creating tmp test files in [%s]", infoDir); |
| } |
| catch (IOException e) { |
| throw new RuntimeException(e); |
| } |
| |
| locations = Collections.singletonList( |
| new StorageLocationConfig( |
| infoDir, |
| 100L, |
| 100d |
| ) |
| ); |
| |
| setupServerAndCurator(); |
| curator.start(); |
| curator.blockUntilConnected(); |
| } |
| |
| @After |
| public void tearDown() |
| { |
| tearDownServerAndCurator(); |
| } |
| |
| @Test(timeout = 60_000L) |
| public void testLoadDrop() throws Exception |
| { |
| EmittingLogger.registerEmitter(new NoopServiceEmitter()); |
| DataSegment segment = new DataSegment( |
| "test", |
| Intervals.of("P1d/2011-04-02"), |
| "v0", |
| ImmutableMap.of("version", "v0", "interval", Intervals.of("P1d/2011-04-02"), "cacheDir", "/no"), |
| Arrays.asList("dim1", "dim2", "dim3"), |
| Arrays.asList("metric1", "metric2"), |
| NoneShardSpec.instance(), |
| IndexIO.CURRENT_VERSION_ID, |
| 123L |
| ); |
| |
| CountDownLatch loadLatch = new CountDownLatch(1); |
| CountDownLatch dropLatch = new CountDownLatch(1); |
| |
| SegmentLoadDropHandler segmentLoadDropHandler = new SegmentLoadDropHandler( |
| ServerTestHelper.MAPPER, |
| new SegmentLoaderConfig() { |
| @Override |
| public File getInfoDir() |
| { |
| return infoDir; |
| } |
| |
| @Override |
| public int getNumLoadingThreads() |
| { |
| return 5; |
| } |
| |
| @Override |
| public int getAnnounceIntervalMillis() |
| { |
| return 50; |
| } |
| |
| @Override |
| public List<StorageLocationConfig> getLocations() |
| { |
| return locations; |
| } |
| |
| @Override |
| public int getDropSegmentDelayMillis() |
| { |
| return 0; |
| } |
| }, |
| EasyMock.createNiceMock(DataSegmentAnnouncer.class), |
| EasyMock.createNiceMock(DataSegmentServerAnnouncer.class), |
| EasyMock.createNiceMock(SegmentManager.class), |
| EasyMock.createNiceMock(SegmentCacheManager.class), |
| EasyMock.createNiceMock(ScheduledExecutorService.class), |
| new ServerTypeConfig(ServerType.HISTORICAL) |
| ) |
| { |
| @Override |
| public void addSegment(DataSegment s, DataSegmentChangeCallback callback) |
| { |
| if (segment.getId().equals(s.getId())) { |
| loadLatch.countDown(); |
| callback.execute(); |
| } |
| } |
| |
| @Override |
| public void removeSegment(DataSegment s, DataSegmentChangeCallback callback) |
| { |
| if (segment.getId().equals(s.getId())) { |
| dropLatch.countDown(); |
| callback.execute(); |
| } |
| } |
| }; |
| |
| zkCoordinator = new ZkCoordinator( |
| segmentLoadDropHandler, |
| jsonMapper, |
| zkPaths, |
| me, |
| curator, |
| new SegmentLoaderConfig() |
| ); |
| zkCoordinator.start(); |
| |
| String segmentZkPath = ZKPaths.makePath(zkPaths.getLoadQueuePath(), me.getName(), segment.getId().toString()); |
| |
| curator |
| .create() |
| .creatingParentsIfNeeded() |
| .withMode(CreateMode.EPHEMERAL) |
| .forPath(segmentZkPath, jsonMapper.writeValueAsBytes(new SegmentChangeRequestLoad(segment))); |
| |
| loadLatch.await(); |
| |
| while (curator.checkExists().forPath(segmentZkPath) != null) { |
| Thread.sleep(100); |
| } |
| |
| curator |
| .create() |
| .creatingParentsIfNeeded() |
| .withMode(CreateMode.EPHEMERAL) |
| .forPath(segmentZkPath, jsonMapper.writeValueAsBytes(new SegmentChangeRequestDrop(segment))); |
| |
| dropLatch.await(); |
| |
| while (curator.checkExists().forPath(segmentZkPath) != null) { |
| Thread.sleep(100); |
| } |
| |
| zkCoordinator.stop(); |
| } |
| } |