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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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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.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, ReplayPosition.NONE, CommitLog.instance.getContext()); | ||
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(CommitLog.instance.location).listFiles().length <= 2); | ||
} | ||
} |