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HADOOP-19164. Hadoop CLI MiniCluster is broken (#7050). Contributed b…
…y Ayush Saxena. Reviewed-by: Vinayakumar B <[email protected]>
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124
...hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/NameNodeAdapterMockitoUtil.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. | ||
| */ | ||
|
|
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| package org.apache.hadoop.hdfs.server.namenode; | ||
|
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| import java.util.concurrent.locks.ReentrantReadWriteLock; | ||
|
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| import org.mockito.ArgumentMatcher; | ||
| import org.mockito.ArgumentMatchers; | ||
| import org.mockito.stubbing.Answer; | ||
|
|
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| import org.apache.commons.lang3.reflect.FieldUtils; | ||
| import org.apache.hadoop.hdfs.DFSTestUtil; | ||
| import org.apache.hadoop.hdfs.server.blockmanagement.BlockManager; | ||
| import org.apache.hadoop.hdfs.server.blockmanagement.BlockManagerTestUtil; | ||
| import org.apache.hadoop.hdfs.server.namenode.ha.EditLogTailer; | ||
| import org.apache.hadoop.test.Whitebox; | ||
|
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| import static org.mockito.Mockito.doAnswer; | ||
| import static org.mockito.Mockito.spy; | ||
|
|
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| /** | ||
| * This is a Mockito based utility class to expose NameNode functionality for unit tests. | ||
| */ | ||
| public final class NameNodeAdapterMockitoUtil { | ||
|
|
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| private NameNodeAdapterMockitoUtil() { | ||
| } | ||
|
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| public static BlockManager spyOnBlockManager(NameNode nn) { | ||
| BlockManager bmSpy = spy(nn.getNamesystem().getBlockManager()); | ||
| nn.getNamesystem().setBlockManagerForTesting(bmSpy); | ||
| return bmSpy; | ||
| } | ||
|
|
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| public static ReentrantReadWriteLock spyOnFsLock(FSNamesystem fsn) { | ||
| ReentrantReadWriteLock spy = spy(fsn.getFsLockForTests()); | ||
| fsn.setFsLockForTests(spy); | ||
| return spy; | ||
| } | ||
|
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| public static FSImage spyOnFsImage(NameNode nn1) { | ||
| FSNamesystem fsn = nn1.getNamesystem(); | ||
| FSImage spy = spy(fsn.getFSImage()); | ||
| Whitebox.setInternalState(fsn, "fsImage", spy); | ||
| return spy; | ||
| } | ||
|
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| public static JournalSet spyOnJournalSet(NameNode nn) { | ||
| FSEditLog editLog = nn.getFSImage().getEditLog(); | ||
| JournalSet js = spy(editLog.getJournalSet()); | ||
| editLog.setJournalSetForTesting(js); | ||
| return js; | ||
| } | ||
|
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| public static FSNamesystem spyOnNamesystem(NameNode nn) { | ||
| FSNamesystem fsnSpy = spy(nn.getNamesystem()); | ||
| FSNamesystem fsnOld = nn.namesystem; | ||
| fsnOld.writeLock(); | ||
| fsnSpy.writeLock(); | ||
| nn.namesystem = fsnSpy; | ||
| try { | ||
| FieldUtils.writeDeclaredField(nn.getRpcServer(), "namesystem", fsnSpy, true); | ||
| FieldUtils.writeDeclaredField( | ||
| fsnSpy.getBlockManager(), "namesystem", fsnSpy, true); | ||
| FieldUtils.writeDeclaredField( | ||
| fsnSpy.getLeaseManager(), "fsnamesystem", fsnSpy, true); | ||
| FieldUtils.writeDeclaredField( | ||
| fsnSpy.getBlockManager().getDatanodeManager(), | ||
| "namesystem", fsnSpy, true); | ||
| FieldUtils.writeDeclaredField( | ||
| BlockManagerTestUtil.getHeartbeatManager(fsnSpy.getBlockManager()), | ||
| "namesystem", fsnSpy, true); | ||
| } catch (IllegalAccessException e) { | ||
| throw new RuntimeException("Cannot set spy FSNamesystem", e); | ||
| } finally { | ||
| fsnSpy.writeUnlock(); | ||
| fsnOld.writeUnlock(); | ||
| } | ||
| return fsnSpy; | ||
| } | ||
|
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| public static FSEditLog spyOnEditLog(NameNode nn) { | ||
| FSEditLog spyEditLog = spy(nn.getNamesystem().getFSImage().getEditLog()); | ||
| DFSTestUtil.setEditLogForTesting(nn.getNamesystem(), spyEditLog); | ||
| EditLogTailer tailer = nn.getNamesystem().getEditLogTailer(); | ||
| if (tailer != null) { | ||
| tailer.setEditLog(spyEditLog); | ||
| } | ||
| return spyEditLog; | ||
| } | ||
|
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| /** | ||
| * Spy on EditLog to delay execution of doEditTransaction() for MkdirOp. | ||
| */ | ||
| public static FSEditLog spyDelayMkDirTransaction( | ||
| final NameNode nn, final long delay) { | ||
| FSEditLog realEditLog = nn.getFSImage().getEditLog(); | ||
| FSEditLogAsync spyEditLog = (FSEditLogAsync) spy(realEditLog); | ||
| DFSTestUtil.setEditLogForTesting(nn.getNamesystem(), spyEditLog); | ||
| Answer<Boolean> ans = invocation -> { | ||
| Thread.sleep(delay); | ||
| return (Boolean) invocation.callRealMethod(); | ||
| }; | ||
| ArgumentMatcher<FSEditLogOp> am = argument -> argument.opCode == FSEditLogOpCodes.OP_MKDIR; | ||
| doAnswer(ans).when(spyEditLog).doEditTransaction(ArgumentMatchers.argThat(am)); | ||
| return spyEditLog; | ||
| } | ||
| } |
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