| /* |
| * 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.cassandra.io.sstable.metadata; |
| |
| import org.apache.cassandra.io.sstable.SequenceBasedSSTableId; |
| import org.apache.cassandra.io.util.*; |
| import java.io.IOException; |
| import java.util.Arrays; |
| import java.util.Collections; |
| import java.util.EnumSet; |
| import java.util.Map; |
| |
| import org.junit.BeforeClass; |
| import org.junit.Test; |
| |
| import org.apache.cassandra.SchemaLoader; |
| import org.apache.cassandra.schema.TableMetadata; |
| import org.apache.cassandra.config.DatabaseDescriptor; |
| import org.apache.cassandra.db.SerializationHeader; |
| import org.apache.cassandra.db.commitlog.CommitLogPosition; |
| import org.apache.cassandra.db.commitlog.IntervalSet; |
| import org.apache.cassandra.dht.RandomPartitioner; |
| import org.apache.cassandra.io.sstable.Component; |
| import org.apache.cassandra.io.sstable.Descriptor; |
| import org.apache.cassandra.io.sstable.format.SSTableFormat; |
| import org.apache.cassandra.io.sstable.format.Version; |
| import org.apache.cassandra.io.sstable.format.big.BigFormat; |
| import org.apache.cassandra.utils.Throwables; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertTrue; |
| |
| public class MetadataSerializerTest |
| { |
| @BeforeClass |
| public static void initDD() |
| { |
| DatabaseDescriptor.daemonInitialization(); |
| } |
| |
| @Test |
| public void testSerialization() throws IOException |
| { |
| Map<MetadataType, MetadataComponent> originalMetadata = constructMetadata(); |
| |
| MetadataSerializer serializer = new MetadataSerializer(); |
| File statsFile = serialize(originalMetadata, serializer, BigFormat.latestVersion); |
| |
| Descriptor desc = new Descriptor(statsFile.parent(), "", "", new SequenceBasedSSTableId(0), SSTableFormat.Type.BIG); |
| try (RandomAccessReader in = RandomAccessReader.open(statsFile)) |
| { |
| Map<MetadataType, MetadataComponent> deserialized = serializer.deserialize(desc, in, EnumSet.allOf(MetadataType.class)); |
| |
| for (MetadataType type : MetadataType.values()) |
| { |
| assertEquals(originalMetadata.get(type), deserialized.get(type)); |
| } |
| } |
| } |
| |
| @Test |
| public void testHistogramSterilization() throws IOException |
| { |
| Map<MetadataType, MetadataComponent> originalMetadata = constructMetadata(); |
| |
| // Modify the histograms to overflow: |
| StatsMetadata originalStats = (StatsMetadata) originalMetadata.get(MetadataType.STATS); |
| originalStats.estimatedCellPerPartitionCount.add(Long.MAX_VALUE); |
| originalStats.estimatedPartitionSize.add(Long.MAX_VALUE); |
| assertTrue(originalStats.estimatedCellPerPartitionCount.isOverflowed()); |
| assertTrue(originalStats.estimatedPartitionSize.isOverflowed()); |
| |
| // Serialize w/ overflowed histograms: |
| MetadataSerializer serializer = new MetadataSerializer(); |
| File statsFile = serialize(originalMetadata, serializer, BigFormat.latestVersion); |
| Descriptor desc = new Descriptor(statsFile.parent(), "", "", new SequenceBasedSSTableId(0), SSTableFormat.Type.BIG); |
| |
| try (RandomAccessReader in = RandomAccessReader.open(statsFile)) |
| { |
| // Deserialie and verify that the two histograms have had their overflow buckets cleared: |
| Map<MetadataType, MetadataComponent> deserialized = serializer.deserialize(desc, in, EnumSet.allOf(MetadataType.class)); |
| StatsMetadata deserializedStats = (StatsMetadata) deserialized.get(MetadataType.STATS); |
| assertFalse(deserializedStats.estimatedCellPerPartitionCount.isOverflowed()); |
| assertFalse(deserializedStats.estimatedPartitionSize.isOverflowed()); |
| } |
| } |
| |
| public File serialize(Map<MetadataType, MetadataComponent> metadata, MetadataSerializer serializer, Version version) |
| throws IOException |
| { |
| // Serialize to tmp file |
| File statsFile = FileUtils.createTempFile(Component.STATS.name, null); |
| try (DataOutputStreamPlus out = new FileOutputStreamPlus(statsFile)) |
| { |
| serializer.serialize(metadata, out, version); |
| } |
| return statsFile; |
| } |
| |
| public Map<MetadataType, MetadataComponent> constructMetadata() |
| { |
| CommitLogPosition club = new CommitLogPosition(11L, 12); |
| CommitLogPosition cllb = new CommitLogPosition(9L, 12); |
| |
| TableMetadata cfm = SchemaLoader.standardCFMD("ks1", "cf1").build(); |
| MetadataCollector collector = new MetadataCollector(cfm.comparator) |
| .commitLogIntervals(new IntervalSet<>(cllb, club)); |
| |
| String partitioner = RandomPartitioner.class.getCanonicalName(); |
| double bfFpChance = 0.1; |
| return collector.finalizeMetadata(partitioner, bfFpChance, 0, null, false, SerializationHeader.make(cfm, Collections.emptyList())); |
| } |
| |
| private void testVersions(String... versions) throws Throwable |
| { |
| Throwable t = null; |
| for (int oldIdx = 0; oldIdx < versions.length; oldIdx++) |
| { |
| for (int newIdx = oldIdx; newIdx < versions.length; newIdx++) |
| { |
| try |
| { |
| testOldReadsNew(versions[oldIdx], versions[newIdx]); |
| } |
| catch (Exception | AssertionError e) |
| { |
| t = Throwables.merge(t, new AssertionError("Failed to test " + versions[oldIdx] + " -> " + versions[newIdx], e)); |
| } |
| } |
| } |
| if (t != null) |
| { |
| throw t; |
| } |
| } |
| |
| @Test |
| public void testMVersions() throws Throwable |
| { |
| testVersions("ma", "mb", "mc", "md", "me"); |
| } |
| |
| @Test |
| public void testNVersions() throws Throwable |
| { |
| testVersions("na", "nb"); |
| } |
| |
| public void testOldReadsNew(String oldV, String newV) throws IOException |
| { |
| Map<MetadataType, MetadataComponent> originalMetadata = constructMetadata(); |
| |
| MetadataSerializer serializer = new MetadataSerializer(); |
| // Write metadata in two minor formats. |
| File statsFileLb = serialize(originalMetadata, serializer, BigFormat.instance.getVersion(newV)); |
| File statsFileLa = serialize(originalMetadata, serializer, BigFormat.instance.getVersion(oldV)); |
| // Reading both as earlier version should yield identical results. |
| SSTableFormat.Type stype = SSTableFormat.Type.current(); |
| Descriptor desc = new Descriptor(stype.info.getVersion(oldV), statsFileLb.parent(), "", "", new SequenceBasedSSTableId(0), stype); |
| try (RandomAccessReader inLb = RandomAccessReader.open(statsFileLb); |
| RandomAccessReader inLa = RandomAccessReader.open(statsFileLa)) |
| { |
| Map<MetadataType, MetadataComponent> deserializedLb = serializer.deserialize(desc, inLb, EnumSet.allOf(MetadataType.class)); |
| Map<MetadataType, MetadataComponent> deserializedLa = serializer.deserialize(desc, inLa, EnumSet.allOf(MetadataType.class)); |
| |
| for (MetadataType type : MetadataType.values()) |
| { |
| assertEquals(deserializedLa.get(type), deserializedLb.get(type)); |
| |
| if (MetadataType.STATS != type) |
| assertEquals(originalMetadata.get(type), deserializedLb.get(type)); |
| } |
| } |
| } |
| |
| @Test |
| public void pendingRepairCompatibility() |
| { |
| Arrays.asList("ma", "mb", "mc", "md", "me").forEach(v -> assertFalse(BigFormat.instance.getVersion(v).hasPendingRepair())); |
| Arrays.asList("na", "nb").forEach(v -> assertTrue(BigFormat.instance.getVersion(v).hasPendingRepair())); |
| } |
| |
| @Test |
| public void originatingHostCompatibility() |
| { |
| Arrays.asList("ma", "mb", "mc", "md", "na").forEach(v -> assertFalse(BigFormat.instance.getVersion(v).hasOriginatingHostId())); |
| Arrays.asList("me", "nb").forEach(v -> assertTrue(BigFormat.instance.getVersion(v).hasOriginatingHostId())); |
| } |
| } |