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* 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,
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package org.apache.cassandra.db.compaction;
import java.nio.ByteBuffer;
import java.util.Set;
import java.util.function.Predicate;
import com.google.common.collect.Sets;
import org.junit.BeforeClass;
import org.junit.Test;
import org.apache.cassandra.SchemaLoader;
import org.apache.cassandra.Util;
import org.apache.cassandra.schema.TableMetadata;
import org.apache.cassandra.db.ColumnFamilyStore;
import org.apache.cassandra.db.DecoratedKey;
import org.apache.cassandra.db.Keyspace;
import org.apache.cassandra.db.Mutation;
import org.apache.cassandra.db.RowUpdateBuilder;
import org.apache.cassandra.db.marshal.AsciiType;
import org.apache.cassandra.db.partitions.PartitionUpdate;
import org.apache.cassandra.exceptions.ConfigurationException;
import org.apache.cassandra.io.sstable.format.SSTableReader;
import org.apache.cassandra.schema.KeyspaceParams;
import org.apache.cassandra.utils.ByteBufferUtil;
import org.apache.cassandra.utils.FBUtilities;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.assertNotNull;
public class CompactionControllerTest extends SchemaLoader
{
private static final String KEYSPACE = "CompactionControllerTest";
private static final String CF1 = "Standard1";
private static final String CF2 = "Standard2";
@BeforeClass
public static void defineSchema() throws ConfigurationException
{
SchemaLoader.prepareServer();
SchemaLoader.createKeyspace(KEYSPACE,
KeyspaceParams.simple(1),
TableMetadata.builder(KEYSPACE, CF1)
.isCompound(false)
.isDense(true)
.addPartitionKeyColumn("pk", AsciiType.instance)
.addClusteringColumn("ck", AsciiType.instance)
.addRegularColumn("val", AsciiType.instance),
TableMetadata.builder(KEYSPACE, CF2)
.isCompound(false)
.isDense(true)
.addPartitionKeyColumn("pk", AsciiType.instance)
.addClusteringColumn("ck", AsciiType.instance)
.addRegularColumn("val", AsciiType.instance));
}
@Test
public void testMaxPurgeableTimestamp()
{
Keyspace keyspace = Keyspace.open(KEYSPACE);
ColumnFamilyStore cfs = keyspace.getColumnFamilyStore(CF1);
cfs.truncateBlocking();
DecoratedKey key = Util.dk("k1");
long timestamp1 = FBUtilities.timestampMicros(); // latest timestamp
long timestamp2 = timestamp1 - 5;
long timestamp3 = timestamp2 - 5; // oldest timestamp
// add to first memtable
applyMutation(cfs.metadata(), key, timestamp1);
// check max purgeable timestamp without any sstables
try(CompactionController controller = new CompactionController(cfs, null, 0))
{
assertPurgeBoundary(controller.getPurgeEvaluator(key), timestamp1); //memtable only
cfs.forceBlockingFlush();
assertTrue(controller.getPurgeEvaluator(key).test(Long.MAX_VALUE)); //no memtables and no sstables
}
Set<SSTableReader> compacting = Sets.newHashSet(cfs.getLiveSSTables()); // first sstable is compacting
// create another sstable
applyMutation(cfs.metadata(), key, timestamp2);
cfs.forceBlockingFlush();
// check max purgeable timestamp when compacting the first sstable with and without a memtable
try (CompactionController controller = new CompactionController(cfs, compacting, 0))
{
assertPurgeBoundary(controller.getPurgeEvaluator(key), timestamp2);
applyMutation(cfs.metadata(), key, timestamp3);
assertPurgeBoundary(controller.getPurgeEvaluator(key), timestamp3); //second sstable and second memtable
}
// check max purgeable timestamp again without any sstables but with different insertion orders on the memtable
cfs.forceBlockingFlush();
//newest to oldest
try (CompactionController controller = new CompactionController(cfs, null, 0))
{
applyMutation(cfs.metadata(), key, timestamp1);
applyMutation(cfs.metadata(), key, timestamp2);
applyMutation(cfs.metadata(), key, timestamp3);
assertPurgeBoundary(controller.getPurgeEvaluator(key), timestamp3); //memtable only
}
cfs.forceBlockingFlush();
//oldest to newest
try (CompactionController controller = new CompactionController(cfs, null, 0))
{
applyMutation(cfs.metadata(), key, timestamp3);
applyMutation(cfs.metadata(), key, timestamp2);
applyMutation(cfs.metadata(), key, timestamp1);
assertPurgeBoundary(controller.getPurgeEvaluator(key), timestamp3);
}
}
@Test
public void testGetFullyExpiredSSTables()
{
Keyspace keyspace = Keyspace.open(KEYSPACE);
ColumnFamilyStore cfs = keyspace.getColumnFamilyStore(CF2);
cfs.truncateBlocking();
DecoratedKey key = Util.dk("k1");
long timestamp1 = FBUtilities.timestampMicros(); // latest timestamp
long timestamp2 = timestamp1 - 5;
long timestamp3 = timestamp2 - 5; // oldest timestamp
// create sstable with tombstone that should be expired in no older timestamps
applyDeleteMutation(cfs.metadata(), key, timestamp2);
cfs.forceBlockingFlush();
// first sstable with tombstone is compacting
Set<SSTableReader> compacting = Sets.newHashSet(cfs.getLiveSSTables());
// create another sstable with more recent timestamp
applyMutation(cfs.metadata(), key, timestamp1);
cfs.forceBlockingFlush();
// second sstable is overlapping
Set<SSTableReader> overlapping = Sets.difference(Sets.newHashSet(cfs.getLiveSSTables()), compacting);
// the first sstable should be expired because the overlapping sstable is newer and the gc period is later
int gcBefore = (int) (System.currentTimeMillis() / 1000) + 5;
Set<SSTableReader> expired = CompactionController.getFullyExpiredSSTables(cfs, compacting, overlapping, gcBefore);
assertNotNull(expired);
assertEquals(1, expired.size());
assertEquals(compacting.iterator().next(), expired.iterator().next());
// however if we add an older mutation to the memtable then the sstable should not be expired
applyMutation(cfs.metadata(), key, timestamp3);
expired = CompactionController.getFullyExpiredSSTables(cfs, compacting, overlapping, gcBefore);
assertNotNull(expired);
assertEquals(0, expired.size());
}
private void applyMutation(TableMetadata cfm, DecoratedKey key, long timestamp)
{
ByteBuffer val = ByteBufferUtil.bytes(1L);
new RowUpdateBuilder(cfm, timestamp, key)
.clustering("ck")
.add("val", val)
.build()
.applyUnsafe();
}
private void applyDeleteMutation(TableMetadata cfm, DecoratedKey key, long timestamp)
{
new Mutation(PartitionUpdate.fullPartitionDelete(cfm, key, timestamp, FBUtilities.nowInSeconds()))
.applyUnsafe();
}
private void assertPurgeBoundary(Predicate<Long> evaluator, long boundary)
{
assertFalse(evaluator.test(boundary));
assertTrue(evaluator.test(boundary - 1));
}
}