blambov commented on code in PR #2267: URL: https://github.com/apache/cassandra/pull/2267#discussion_r1173518932
########## src/java/org/apache/cassandra/io/sstable/format/bti/BtiFormat.java: ########## @@ -0,0 +1,490 @@ +/* + * 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.format.bti; + +import java.io.IOException; +import java.util.List; +import java.util.Set; + +import com.google.common.base.Preconditions; +import com.google.common.collect.ImmutableSet; +import com.google.common.collect.Lists; +import com.google.common.collect.Sets; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import org.apache.cassandra.db.ColumnFamilyStore; +import org.apache.cassandra.db.DecoratedKey; +import org.apache.cassandra.db.lifecycle.LifecycleTransaction; +import org.apache.cassandra.dht.IPartitioner; +import org.apache.cassandra.io.sstable.Component; +import org.apache.cassandra.io.sstable.Descriptor; +import org.apache.cassandra.io.sstable.GaugeProvider; +import org.apache.cassandra.io.sstable.IScrubber; +import org.apache.cassandra.io.sstable.MetricsProviders; +import org.apache.cassandra.io.sstable.SSTable; +import org.apache.cassandra.io.sstable.filter.BloomFilterMetrics; +import org.apache.cassandra.io.sstable.format.AbstractSSTableFormat; +import org.apache.cassandra.io.sstable.format.SSTableFormat; +import org.apache.cassandra.io.sstable.format.SSTableReader; +import org.apache.cassandra.io.sstable.format.SSTableReaderLoadingBuilder; +import org.apache.cassandra.io.sstable.format.SSTableWriter; +import org.apache.cassandra.io.sstable.format.SortedTableScrubber; +import org.apache.cassandra.io.sstable.format.Version; +import org.apache.cassandra.net.MessagingService; +import org.apache.cassandra.schema.TableMetadataRef; +import org.apache.cassandra.utils.JVMStabilityInspector; +import org.apache.cassandra.utils.OutputHandler; +import org.apache.cassandra.utils.Pair; + +/** + * Bigtable format with trie indices + */ +public class BtiFormat extends AbstractSSTableFormat<BtiTableReader, BtiTableWriter> +{ + private final static Logger logger = LoggerFactory.getLogger(BtiFormat.class); + + public static final BtiFormat instance = new BtiFormat(); + + public static final Version latestVersion = new BtiVersion(BtiVersion.current_version); + static final BtiTableReaderFactory readerFactory = new BtiTableReaderFactory(); + static final BtiTableWriterFactory writerFactory = new BtiTableWriterFactory(); + + public static class Components extends AbstractSSTableFormat.Components + { + public static class Types extends AbstractSSTableFormat.Components.Types + { + public static final Component.Type PARTITION_INDEX = Component.Type.createSingleton("PARTITION_INDEX", "Partitions.db", BtiFormat.class); + public static final Component.Type ROW_INDEX = Component.Type.createSingleton("ROW_INDEX", "Rows.db", BtiFormat.class); + } + + public final static Component PARTITION_INDEX = Types.PARTITION_INDEX.getSingleton(); + + public final static Component ROW_INDEX = Types.ROW_INDEX.getSingleton(); + + private final static Set<Component> STREAMING_COMPONENTS = ImmutableSet.of(DATA, + PARTITION_INDEX, + ROW_INDEX, + STATS, + COMPRESSION_INFO, + FILTER, + DIGEST, + CRC); + + private final static Set<Component> PRIMARY_COMPONENTS = ImmutableSet.of(DATA, + PARTITION_INDEX); + + private final static Set<Component> MUTABLE_COMPONENTS = ImmutableSet.of(STATS); + + private static final Set<Component> UPLOAD_COMPONENTS = ImmutableSet.of(DATA, + PARTITION_INDEX, + ROW_INDEX, + COMPRESSION_INFO, + STATS); + + private static final Set<Component> BATCH_COMPONENTS = ImmutableSet.of(DATA, + PARTITION_INDEX, + ROW_INDEX, + COMPRESSION_INFO, + FILTER, + STATS); + + private final static Set<Component> ALL_COMPONENTS = ImmutableSet.of(DATA, + PARTITION_INDEX, + ROW_INDEX, + STATS, + COMPRESSION_INFO, + FILTER, + DIGEST, + CRC, + TOC); + + private final static Set<Component> GENERATED_ON_LOAD_COMPONENTS = ImmutableSet.of(FILTER); + } + + + private BtiFormat() + { + + } + + public static BtiFormat getInstance() + { + return instance; + } + + public static boolean isDefault() + { + return getInstance().getType() == Type.current(); + } + + @Override + public Version getLatestVersion() + { + return latestVersion; + } + + @Override + public Version getVersion(String version) + { + return new BtiVersion(version); + } + + @Override + public BtiTableWriterFactory getWriterFactory() + { + return writerFactory; + } + + @Override + public BtiTableReaderFactory getReaderFactory() + { + return readerFactory; + } + + @Override + public Set<Component> streamingComponents() + { + return Components.STREAMING_COMPONENTS; + } + + @Override + public Set<Component> primaryComponents() + { + return Components.PRIMARY_COMPONENTS; + } + + @Override + public Set<Component> batchComponents() + { + return Components.BATCH_COMPONENTS; + } + + @Override + public Set<Component> uploadComponents() + { + return Components.UPLOAD_COMPONENTS; + } + + @Override + public Set<Component> mutableComponents() + { + return Components.MUTABLE_COMPONENTS; + } + + @Override + public Set<Component> allComponents() + { + return Components.ALL_COMPONENTS; + } + + @Override + public Set<Component> generatedOnLoadComponents() + { + return Components.GENERATED_ON_LOAD_COMPONENTS; + } + + @Override + public SSTableFormat.KeyCacheValueSerializer<BtiTableReader, TrieIndexEntry> getKeyCacheValueSerializer() + { + throw new AssertionError("BTI sstables do not use key cache"); + } + + @Override + public IScrubber getScrubber(ColumnFamilyStore cfs, LifecycleTransaction transaction, OutputHandler outputHandler, IScrubber.Options options) + { + Preconditions.checkArgument(cfs.metadata().equals(transaction.onlyOne().metadata())); + return new BtiTableScrubber(cfs, transaction, outputHandler, options); + } + + @Override + public BtiTableReader cast(SSTableReader sstr) + { + return (BtiTableReader) sstr; + } + + @Override + public BtiTableWriter cast(SSTableWriter sstw) + { + return (BtiTableWriter) sstw; + } + + @Override + public MetricsProviders getFormatSpecificMetricsProviders() + { + return BtiTableSpecificMetricsProviders.instance; + } + + @Override + public void deleteOrphanedComponents(Descriptor descriptor, Set<Component> components) + { + SortedTableScrubber.deleteOrphanedComponents(descriptor, components); + } + + private void delete(Descriptor desc, List<Component> components) + { + logger.info("Deleting sstable: {}", desc); + + if (components.remove(SSTableFormat.Components.DATA)) + components.add(0, SSTableFormat.Components.DATA); // DATA component should be first + + for (Component component : components) + { + logger.trace("Deleting component {} of {}", component, desc); + desc.fileFor(component).deleteIfExists(); + } + } + + @Override + public void delete(Descriptor desc) + { + try + { + delete(desc, Lists.newArrayList(Sets.intersection(allComponents(), desc.discoverComponents()))); + } + catch (Throwable t) + { + JVMStabilityInspector.inspectThrowable(t); + } + } + + static class BtiTableReaderFactory implements SSTableReaderFactory<BtiTableReader, BtiTableReader.Builder> + { + @Override + public SSTableReader.Builder<BtiTableReader, BtiTableReader.Builder> builder(Descriptor descriptor) + { + return new BtiTableReader.Builder(descriptor); + } + + @Override + public SSTableReaderLoadingBuilder<BtiTableReader, BtiTableReader.Builder> loadingBuilder(Descriptor descriptor, TableMetadataRef tableMetadataRef, Set<Component> components) + { + return new BtiTableReaderLoadingBuilder(new SSTable.Builder<>(descriptor).setTableMetadataRef(tableMetadataRef) + .setComponents(components)); + } + + @Override + public Pair<DecoratedKey, DecoratedKey> readKeyRange(Descriptor descriptor, IPartitioner partitioner) throws IOException + { + return PartitionIndex.readFirstAndLastKey(descriptor.fileFor(Components.PARTITION_INDEX), partitioner); + } + + @Override + public Class<BtiTableReader> getReaderClass() + { + return BtiTableReader.class; + } + } + + static class BtiTableWriterFactory implements SSTableWriterFactory<BtiTableWriter, BtiTableWriter.Builder> + { + @Override + public BtiTableWriter.Builder builder(Descriptor descriptor) + { + return new BtiTableWriter.Builder(descriptor); + } + + @Override + public long estimateSize(SSTableWriter.SSTableSizeParameters parameters) + { + return (long) ((parameters.partitionCount() // index entries + + parameters.partitionCount() // keys in data file + + parameters.dataSize()) // data + * 1.2); // bloom filter and row index overhead + } + } + + // versions are denoted as [major][minor]. Minor versions must be forward-compatible: + // new fields are allowed in e.g. the metadata component, but fields can't be removed + // or have their size changed. + // + static class BtiVersion extends Version + { + public static final String current_version = "da"; + public static final String earliest_supported_version = "ca"; + + // aa (DSE 6.0): trie index format Review Comment: Removed mentions and attempted support for legacy DSE versions --- the latter is more involved as the byte order conversion and stats metadata formats are not compatible. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. 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