mirror of https://github.com/apache/cassandra
Merge branch 'cassandra-3.0' into cassandra-3.11
This commit is contained in:
Stefan Miklosovic
commit
997ad8e03b
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/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.cassandra.hints;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.nio.ByteBuffer;
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import java.nio.channels.FileChannel;
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import java.nio.file.Files;
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import java.util.Iterator;
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import java.util.Properties;
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import java.util.UUID;
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import java.util.concurrent.ThreadLocalRandom;
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import java.util.concurrent.atomic.AtomicInteger;
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import java.util.concurrent.atomic.AtomicLong;
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import java.util.stream.Stream;
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import io.airlift.command.Cli;
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import io.airlift.command.Command;
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import io.airlift.command.Option;
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import org.apache.cassandra.SchemaLoader;
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import org.apache.cassandra.UpdateBuilder;
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import org.apache.cassandra.Util;
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import org.apache.cassandra.config.CFMetaData;
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import org.apache.cassandra.config.DatabaseDescriptor;
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import org.apache.cassandra.config.Schema;
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import org.apache.cassandra.db.Mutation;
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import org.apache.cassandra.io.FSWriteError;
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import org.apache.cassandra.io.util.FileUtils;
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import org.apache.cassandra.utils.FBUtilities;
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public class HintsMaker
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{
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public static void main(String[] args)
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{
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System.exit(new HintsMaker().execute(args));
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}
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public int execute(String[] args)
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{
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Cli.CliBuilder<Runnable> builder = Cli.<Runnable>builder("hintsmaker")
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.withCommands(MakeHint.class)
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.withDefaultCommand(MakeHint.class);
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try
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{
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builder.build().parse(args).run();
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return 0;
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}
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catch (Throwable t)
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{
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t.printStackTrace(System.err);
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}
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return 1;
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}
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@Command(name = "make", description = "make file of hints")
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public static class MakeHint implements Runnable
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{
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private static final String KEYSPACE = "Keyspace1";
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private static final String TABLE = "Standard1";
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private static final String CELLNAME = "name";
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private static final String DATA_DIR = "test/data/legacy-hints/";
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private static final String PROPERTIES_FILE = "hash.txt";
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private static final String HOST_ID_PROPERTY = "hostId";
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private static final String CFID_PROPERTY = "cfid";
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private static final String CELLS_PROPERTY = "cells";
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private static final String DESCRIPTOR_TIMESTAMP_PROPERTY = "descriptorTimestamp";
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private static final String HASH_PROPERTY = "hash";
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private static ByteBuffer dataSource;
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@Option(name = "dir")
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private String dir = DATA_DIR;
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@Option(name = HOST_ID_PROPERTY)
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private UUID hostId = UUID.randomUUID();
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@Option(name = "maxLength") // 1MB by default
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private long maxLength = 1024 * 1024;
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@Option(name = "randomSize")
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private boolean randomSize;
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@Option(name = "cellSize")
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private int cellSize = 256;
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@Option(name = "numCells")
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private int numCells = 1;
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@Option(name = DESCRIPTOR_TIMESTAMP_PROPERTY)
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private long descriptorTimestamp = System.currentTimeMillis();
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public void run()
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{
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try
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{
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initialize();
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maxLength = maxLength == 0 ? DatabaseDescriptor.getMaxHintsFileSize() : maxLength;
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File dataDir = new File(dir + FBUtilities.getReleaseVersionString());
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Files.createDirectories(dataDir.toPath());
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System.out.printf("Going to generate hints file into directory %s with max length %s, host id %s and " +
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"hints descriptor timestamp %s", dataDir, maxLength, hostId, descriptorTimestamp);
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HintsDescriptor hintsDescriptor = new HintsDescriptor(hostId, descriptorTimestamp);
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final CFMetaData cfMetaData = Schema.instance.getCFMetaData(KEYSPACE, TABLE);
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final AtomicLong counter = new AtomicLong(0);
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final AtomicInteger hash = new AtomicInteger(0);
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final AtomicInteger cells = new AtomicInteger(0);
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final int numCells = this.numCells;
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final AtomicInteger dataSize = new AtomicInteger(0);
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Iterator<Mutation> mutationIterator = Stream.generate(() -> {
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ThreadLocalRandom current = ThreadLocalRandom.current();
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ByteBuffer key = randomBytes(16, current);
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UpdateBuilder builder = UpdateBuilder.create(cfMetaData, Util.dk(key));
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for (int i = 0; i < numCells; i++)
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{
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int sz = randomSize ? current.nextInt(cellSize) : cellSize;
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ByteBuffer bytes = randomBytes(sz, current);
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builder.newRow(CELLNAME + i).add("val", bytes);
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hash.set(hash(hash.get(), bytes));
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cells.incrementAndGet();
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dataSize.addAndGet(sz);
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}
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counter.incrementAndGet();
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return (Mutation) builder.makeMutation();
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}).iterator();
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makeHintFile(dataDir, hintsDescriptor, mutationIterator);
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Properties prop = new Properties();
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prop.setProperty(HOST_ID_PROPERTY, hostId.toString());
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prop.setProperty(DESCRIPTOR_TIMESTAMP_PROPERTY, Long.toString(descriptorTimestamp));
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prop.setProperty(CFID_PROPERTY, Schema.instance.getId(KEYSPACE, TABLE).toString());
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prop.setProperty(CELLS_PROPERTY, Integer.toString(cells.get()));
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prop.setProperty(HASH_PROPERTY, Integer.toString(hash.get()));
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prop.store(new FileOutputStream(new File(dataDir, PROPERTIES_FILE)),
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"Hints, version " + FBUtilities.getReleaseVersionString());
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System.out.println("Done");
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}
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catch (Throwable t)
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{
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throw new RuntimeException(t);
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}
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}
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private void makeHintFile(File dir,
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HintsDescriptor descriptor,
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Iterator<Mutation> mutationIterator)
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{
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ByteBuffer buffer = ByteBuffer.allocateDirect(256 * 1024);
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try (HintsWriter writer = HintsWriter.create(dir, descriptor))
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{
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try (HintsWriter.Session session = writer.newSession(buffer))
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{
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while (session.position() < maxLength && mutationIterator.hasNext())
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{
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Hint hint = Hint.create(mutationIterator.next(), System.currentTimeMillis());
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session.append(hint);
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}
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System.out.println("Generating finished");
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}
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}
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catch (IOException ex)
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{
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throw new FSWriteError(ex, descriptor.fileName());
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}
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finally
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{
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FileUtils.clean(buffer);
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}
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}
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private static int hash(int hash, ByteBuffer bytes)
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{
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int shift = 0;
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for (int i = 0; i < bytes.limit(); i++)
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{
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hash += (bytes.get(i) & 0xFF) << shift;
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shift = (shift + 8) & 0x1F;
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}
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return hash;
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}
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private void initialize() throws Exception
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{
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try (FileInputStream fis = new FileInputStream("CHANGES.txt");
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FileChannel fileChannel = fis.getChannel())
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{
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dataSource = ByteBuffer.allocateDirect((int) fileChannel.size());
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while (dataSource.hasRemaining())
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{
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fileChannel.read(dataSource);
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}
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dataSource.flip();
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}
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SchemaLoader.prepareServer();
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SchemaLoader.loadSchema();
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SchemaLoader.schemaDefinition("");
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}
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private static ByteBuffer randomBytes(int quantity, ThreadLocalRandom tlr)
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{
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ByteBuffer slice = ByteBuffer.allocate(quantity);
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ByteBuffer source = dataSource.duplicate();
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source.position(tlr.nextInt(source.capacity() - quantity));
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source.limit(source.position() + quantity);
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slice.put(source);
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slice.flip();
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return slice;
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}
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}
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}
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