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test/unit/org/apache/cassandra/db/commitlog/CommitlogShutdownTest.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.cassandra.db.commitlog; | ||
|
|
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| import java.io.File; | ||
| import java.nio.ByteBuffer; | ||
| import java.util.Random; | ||
| import java.util.UUID; | ||
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|
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| import com.google.common.collect.ImmutableMap; | ||
| import org.junit.Assert; | ||
| import org.junit.Test; | ||
| import org.junit.runner.RunWith; | ||
|
|
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| import org.apache.cassandra.SchemaLoader; | ||
| import org.apache.cassandra.config.Config; | ||
| import org.apache.cassandra.config.DatabaseDescriptor; | ||
| import org.apache.cassandra.config.ParameterizedClass; | ||
| import org.apache.cassandra.db.ColumnFamilyStore; | ||
| import org.apache.cassandra.db.Keyspace; | ||
| import org.apache.cassandra.db.Mutation; | ||
| import org.apache.cassandra.db.RowUpdateBuilder; | ||
| import org.apache.cassandra.db.compaction.CompactionManager; | ||
| import org.apache.cassandra.db.marshal.AsciiType; | ||
| import org.apache.cassandra.db.marshal.BytesType; | ||
| import org.apache.cassandra.schema.KeyspaceParams; | ||
| import org.jboss.byteman.contrib.bmunit.BMRule; | ||
| import org.jboss.byteman.contrib.bmunit.BMUnitRunner; | ||
|
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| /** | ||
| * Since this test depends on byteman rules being setup during initialization, you shouldn't add tests to this class | ||
| */ | ||
| @RunWith(BMUnitRunner.class) | ||
| public class CommitlogShutdownTest | ||
| { | ||
| private static final String KEYSPACE1 = "CommitLogTest"; | ||
| private static final String STANDARD1 = "Standard1"; | ||
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| private final static byte[] entropy = new byte[1024 * 256]; | ||
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| @Test | ||
| @BMRule(name = "Make removing commitlog segments slow", | ||
| targetClass = "CommitLogSegment", | ||
| targetMethod = "discard", | ||
| action = "Thread.sleep(50)") | ||
| public void testShutdownWithPendingTasks() throws Exception | ||
| { | ||
| new Random().nextBytes(entropy); | ||
| DatabaseDescriptor.daemonInitialization(); | ||
| DatabaseDescriptor.setCommitLogCompression(new ParameterizedClass("LZ4Compressor", ImmutableMap.of())); | ||
| DatabaseDescriptor.setCommitLogSegmentSize(1); | ||
| DatabaseDescriptor.setCommitLogSync(Config.CommitLogSync.periodic); | ||
| DatabaseDescriptor.setCommitLogSyncPeriod(10 * 1000); | ||
| SchemaLoader.prepareServer(); | ||
| SchemaLoader.createKeyspace(KEYSPACE1, | ||
| KeyspaceParams.simple(1), | ||
| SchemaLoader.standardCFMD(KEYSPACE1, STANDARD1, 0, AsciiType.instance, BytesType.instance)); | ||
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| CompactionManager.instance.disableAutoCompaction(); | ||
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| CommitLog.instance.resetUnsafe(true); | ||
| ColumnFamilyStore cfs1 = Keyspace.open(KEYSPACE1).getColumnFamilyStore(STANDARD1); | ||
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| final Mutation m = new RowUpdateBuilder(cfs1.metadata, 0, "k") | ||
| .clustering("bytes") | ||
| .add("val", ByteBuffer.wrap(entropy)) | ||
| .build(); | ||
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| // force creating several commitlog files | ||
| for (int i = 0; i < 10; i++) | ||
| { | ||
| CommitLog.instance.add(m); | ||
| } | ||
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| // schedule discarding completed segments and immediately issue a shutdown | ||
| UUID cfid = m.getColumnFamilyIds().iterator().next(); | ||
| CommitLog.instance.discardCompletedSegments(cfid, CommitLogPosition.NONE, CommitLog.instance.getCurrentPosition()); | ||
| CommitLog.instance.shutdownBlocking(); | ||
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| // the shutdown should block until all logs except the currently active one and perhaps a new, empty one are gone | ||
| Assert.assertTrue(new File(DatabaseDescriptor.getCommitLogLocation()).listFiles().length <= 2); | ||
| } | ||
| } |