Package org.apache.cassandra.tools

Source Code of org.apache.cassandra.tools.BulkLoader$ProgressIndicator

/*
* 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
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package org.apache.cassandra.tools;

import java.io.File;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.*;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.TimeUnit;

import com.google.common.collect.Sets;
import org.apache.commons.cli.*;
import org.apache.thrift.protocol.TBinaryProtocol;
import org.apache.thrift.protocol.TProtocol;
import org.apache.thrift.transport.TFramedTransport;
import org.apache.thrift.transport.TSocket;
import org.apache.thrift.transport.TTransport;

import org.apache.cassandra.auth.IAuthenticator;
import org.apache.cassandra.config.CFMetaData;
import org.apache.cassandra.config.DatabaseDescriptor;
import org.apache.cassandra.db.Keyspace;
import org.apache.cassandra.db.SystemKeyspace;
import org.apache.cassandra.dht.Range;
import org.apache.cassandra.dht.Token;
import org.apache.cassandra.io.sstable.SSTableLoader;
import org.apache.cassandra.streaming.*;
import org.apache.cassandra.thrift.*;
import org.apache.cassandra.utils.ByteBufferUtil;
import org.apache.cassandra.utils.OutputHandler;

public class BulkLoader
{
    private static final String TOOL_NAME = "sstableloader";
    private static final String VERBOSE_OPTION  = "verbose";
    private static final String DEBUG_OPTION  = "debug";
    private static final String HELP_OPTION  = "help";
    private static final String NOPROGRESS_OPTION  = "no-progress";
    private static final String IGNORE_NODES_OPTION  = "ignore";
    private static final String INITIAL_HOST_ADDRESS_OPTION = "nodes";
    private static final String RPC_PORT_OPTION = "port";
    private static final String USER_OPTION = "username";
    private static final String PASSWD_OPTION = "password";
    private static final String THROTTLE_MBITS = "throttle";

    public static void main(String args[])
    {
        LoaderOptions options = LoaderOptions.parseArgs(args);
        OutputHandler handler = new OutputHandler.SystemOutput(options.verbose, options.debug);
        SSTableLoader loader = new SSTableLoader(options.directory, new ExternalClient(options.hosts, options.rpcPort, options.user, options.passwd), handler);
        DatabaseDescriptor.setStreamThroughputOutboundMegabitsPerSec(options.throttle);
        StreamResultFuture future = loader.stream(options.ignores);
        future.addEventListener(new ProgressIndicator());
        try
        {
            future.get();
            System.exit(0); // We need that to stop non daemonized threads
        }
        catch (Exception e)
        {
            System.err.println("Streaming to the following hosts failed:");
            System.err.println(loader.getFailedHosts());
            System.err.println(e);
            if (options.debug)
                e.printStackTrace(System.err);
            System.exit(1);
        }
    }

    // Return true when everything is at 100%
    static class ProgressIndicator implements StreamEventHandler
    {
        private final Map<InetAddress, SessionInfo> sessionsByHost = new ConcurrentHashMap<>();
        private final Map<InetAddress, Set<ProgressInfo>> progressByHost = new ConcurrentHashMap<>();

        private long start;
        private long lastProgress;
        private long lastTime;

        public ProgressIndicator()
        {
            start = lastTime = System.nanoTime();
        }

        public void onSuccess(StreamState finalState) {}
        public void onFailure(Throwable t) {}

        public void handleStreamEvent(StreamEvent event)
        {
            if (event.eventType == StreamEvent.Type.STREAM_PREPARED)
            {
                SessionInfo session = ((StreamEvent.SessionPreparedEvent) event).session;
                sessionsByHost.put(session.peer, session);
            }
            else if (event.eventType == StreamEvent.Type.FILE_PROGRESS)
            {
                ProgressInfo progressInfo = ((StreamEvent.ProgressEvent) event).progress;

                // update progress
                Set<ProgressInfo> progresses = progressByHost.get(progressInfo.peer);
                if (progresses == null)
                {
                    progresses = Sets.newSetFromMap(new ConcurrentHashMap<ProgressInfo, Boolean>());
                    progressByHost.put(progressInfo.peer, progresses);
                }
                if (progresses.contains(progressInfo))
                    progresses.remove(progressInfo);
                progresses.add(progressInfo);

                StringBuilder sb = new StringBuilder();
                sb.append("\rprogress: ");

                long totalProgress = 0;
                long totalSize = 0;
                for (Map.Entry<InetAddress, Set<ProgressInfo>> entry : progressByHost.entrySet())
                {
                    SessionInfo session = sessionsByHost.get(entry.getKey());

                    long size = session.getTotalSizeToSend();
                    long current = 0;
                    int completed = 0;
                    for (ProgressInfo progress : entry.getValue())
                    {
                        if (progress.currentBytes == progress.totalBytes)
                            completed++;
                        current += progress.currentBytes;
                    }
                    totalProgress += current;
                    totalSize += size;
                    sb.append("[").append(entry.getKey());
                    sb.append(" ").append(completed).append("/").append(session.getTotalFilesToSend());
                    sb.append(" (").append(size == 0 ? 100L : current * 100L / size).append("%)] ");
                }
                long time = System.nanoTime();
                long deltaTime = TimeUnit.NANOSECONDS.toMillis(time - lastTime);
                lastTime = time;
                long deltaProgress = totalProgress - lastProgress;
                lastProgress = totalProgress;

                sb.append("[total: ").append(totalSize == 0 ? 100L : totalProgress * 100L / totalSize).append("% - ");
                sb.append(mbPerSec(deltaProgress, deltaTime)).append("MB/s");
                sb.append(" (avg: ").append(mbPerSec(totalProgress, TimeUnit.NANOSECONDS.toMillis(time - start))).append("MB/s)]");

                System.out.print(sb.toString());
            }
        }

        private int mbPerSec(long bytes, long timeInMs)
        {
            double bytesPerMs = ((double)bytes) / timeInMs;
            return (int)((bytesPerMs * 1000) / (1024 * 2024));
        }
    }

    static class ExternalClient extends SSTableLoader.Client
    {
        private final Map<String, CFMetaData> knownCfs = new HashMap<>();
        private final Set<InetAddress> hosts;
        private final int rpcPort;
        private final String user;
        private final String passwd;

        public ExternalClient(Set<InetAddress> hosts, int port, String user, String passwd)
        {
            super();
            this.hosts = hosts;
            this.rpcPort = port;
            this.user = user;
            this.passwd = passwd;
        }

        public void init(String keyspace)
        {
            Iterator<InetAddress> hostiter = hosts.iterator();
            while (hostiter.hasNext())
            {
                try
                {
                    // Query endpoint to ranges map and schemas from thrift
                    InetAddress host = hostiter.next();
                    Cassandra.Client client = createThriftClient(host.getHostAddress(), rpcPort, this.user, this.passwd);

                    setPartitioner(client.describe_partitioner());
                    Token.TokenFactory tkFactory = getPartitioner().getTokenFactory();

                    for (TokenRange tr : client.describe_ring(keyspace))
                    {
                        Range<Token> range = new Range<>(tkFactory.fromString(tr.start_token), tkFactory.fromString(tr.end_token));
                        for (String ep : tr.endpoints)
                        {
                            addRangeForEndpoint(range, InetAddress.getByName(ep));
                        }
                    }

                    String query = String.format("SELECT * FROM %s.%s WHERE keyspace_name = '%s'",
                                                 Keyspace.SYSTEM_KS,
                                                 SystemKeyspace.SCHEMA_COLUMNFAMILIES_CF,
                                                 keyspace);
                    CqlResult result = client.execute_cql3_query(ByteBufferUtil.bytes(query), Compression.NONE, ConsistencyLevel.ONE);
                    for (CqlRow row : result.rows)
                    {
                        CFMetaData metadata = CFMetaData.fromThriftCqlRow(row);
                        knownCfs.put(metadata.cfName, metadata);
                    }
                    break;
                }
                catch (Exception e)
                {
                    if (!hostiter.hasNext())
                        throw new RuntimeException("Could not retrieve endpoint ranges: ", e);
                }
            }
        }

        public CFMetaData getCFMetaData(String keyspace, String cfName)
        {
            return knownCfs.get(cfName);
        }

        private static Cassandra.Client createThriftClient(String host, int port, String user, String passwd) throws Exception
        {
            TSocket socket = new TSocket(host, port);
            TTransport trans = new TFramedTransport(socket);
            trans.open();
            TProtocol protocol = new TBinaryProtocol(trans);
            Cassandra.Client client = new Cassandra.Client(protocol);
            if (user != null && passwd != null)
            {
                Map<String, String> credentials = new HashMap<String, String>();
                credentials.put(IAuthenticator.USERNAME_KEY, user);
                credentials.put(IAuthenticator.PASSWORD_KEY, passwd);
                AuthenticationRequest authenticationRequest = new AuthenticationRequest(credentials);
                client.login(authenticationRequest);
            }
            return client;
        }
    }

    static class LoaderOptions
    {
        public final File directory;

        public boolean debug;
        public boolean verbose;
        public boolean noProgress;
        public int rpcPort = 9160;
        public String user;
        public String passwd;
        public int throttle = 0;

        public final Set<InetAddress> hosts = new HashSet<InetAddress>();
        public final Set<InetAddress> ignores = new HashSet<InetAddress>();

        LoaderOptions(File directory)
        {
            this.directory = directory;
        }

        public static LoaderOptions parseArgs(String cmdArgs[])
        {
            CommandLineParser parser = new GnuParser();
            CmdLineOptions options = getCmdLineOptions();
            try
            {
                CommandLine cmd = parser.parse(options, cmdArgs, false);

                if (cmd.hasOption(HELP_OPTION))
                {
                    printUsage(options);
                    System.exit(0);
                }

                String[] args = cmd.getArgs();
                if (args.length == 0)
                {
                    System.err.println("Missing sstable directory argument");
                    printUsage(options);
                    System.exit(1);
                }

                if (args.length > 1)
                {
                    System.err.println("Too many arguments");
                    printUsage(options);
                    System.exit(1);
                }

                String dirname = args[0];
                File dir = new File(dirname);

                if (!dir.exists())
                    errorMsg("Unknown directory: " + dirname, options);

                if (!dir.isDirectory())
                    errorMsg(dirname + " is not a directory", options);

                LoaderOptions opts = new LoaderOptions(dir);

                opts.debug = cmd.hasOption(DEBUG_OPTION);
                opts.verbose = cmd.hasOption(VERBOSE_OPTION);
                opts.noProgress = cmd.hasOption(NOPROGRESS_OPTION);

                if (cmd.hasOption(THROTTLE_MBITS))
                    opts.throttle = Integer.parseInt(cmd.getOptionValue(THROTTLE_MBITS));

                if (cmd.hasOption(RPC_PORT_OPTION))
                    opts.rpcPort = Integer.parseInt(cmd.getOptionValue(RPC_PORT_OPTION));

                if (cmd.hasOption(USER_OPTION))
                    opts.user = cmd.getOptionValue(USER_OPTION);

                if (cmd.hasOption(PASSWD_OPTION))
                    opts.passwd = cmd.getOptionValue(PASSWD_OPTION);

                if (cmd.hasOption(INITIAL_HOST_ADDRESS_OPTION))
                {
                    String[] nodes = cmd.getOptionValue(INITIAL_HOST_ADDRESS_OPTION).split(",");
                    try
                    {
                        for (String node : nodes)
                        {
                            opts.hosts.add(InetAddress.getByName(node.trim()));
                        }
                    }
                    catch (UnknownHostException e)
                    {
                        errorMsg("Unknown host: " + e.getMessage(), options);
                    }

                }
                else
                {
                    System.err.println("Initial hosts must be specified (-d)");
                    printUsage(options);
                    System.exit(1);
                }

                if (cmd.hasOption(IGNORE_NODES_OPTION))
                {
                    String[] nodes = cmd.getOptionValue(IGNORE_NODES_OPTION).split(",");
                    try
                    {
                        for (String node : nodes)
                        {
                            opts.ignores.add(InetAddress.getByName(node.trim()));
                        }
                    }
                    catch (UnknownHostException e)
                    {
                        errorMsg("Unknown host: " + e.getMessage(), options);
                    }
                }

                return opts;
            }
            catch (ParseException e)
            {
                errorMsg(e.getMessage(), options);
                return null;
            }
        }

        private static void errorMsg(String msg, CmdLineOptions options)
        {
            System.err.println(msg);
            printUsage(options);
            System.exit(1);
        }
        private static CmdLineOptions getCmdLineOptions()
        {
            CmdLineOptions options = new CmdLineOptions();
            options.addOption(null, DEBUG_OPTION,        "display stack traces");
            options.addOption("v",  VERBOSE_OPTION,      "verbose output");
            options.addOption("h",  HELP_OPTION,         "display this help message");
            options.addOption(null, NOPROGRESS_OPTION,   "don't display progress");
            options.addOption("i",  IGNORE_NODES_OPTION, "NODES", "don't stream to this (comma separated) list of nodes");
            options.addOption("d",  INITIAL_HOST_ADDRESS_OPTION, "initial hosts", "try to connect to these hosts (comma separated) initially for ring information");
            options.addOption("p",  RPC_PORT_OPTION, "rpc port", "port used for rpc (default 9160)");
            options.addOption("t",  THROTTLE_MBITS, "throttle", "throttle speed in Mbits (default unlimited)");
            options.addOption("u",  USER_OPTION, "username", "username for cassandra authentication");
            options.addOption("pw", PASSWD_OPTION, "password", "password for cassandra authentication");
            return options;
        }

        public static void printUsage(Options options)
        {
            String usage = String.format("%s [options] <dir_path>", TOOL_NAME);
            StringBuilder header = new StringBuilder();
            header.append("--\n");
            header.append("Bulk load the sstables found in the directory <dir_path> to the configured cluster." );
            header.append("The parent directory of <dir_path> is used as the keyspace name. ");
            header.append("So for instance, to load an sstable named Standard1-g-1-Data.db into keyspace Keyspace1, ");
            header.append("you will need to have the files Standard1-g-1-Data.db and Standard1-g-1-Index.db in a ");
            header.append("directory Keyspace1/Standard1/ in the directory and call: sstableloader Keyspace1/Standard1");
            header.append("\n--\n");
            header.append("Options are:");
            new HelpFormatter().printHelp(usage, header.toString(), options, "");
        }
    }

    public static class CmdLineOptions extends Options
    {
        /**
         * Add option with argument and argument name
         * @param opt shortcut for option name
         * @param longOpt complete option name
         * @param argName argument name
         * @param description description of the option
         * @return updated Options object
         */
        public Options addOption(String opt, String longOpt, String argName, String description)
        {
            Option option = new Option(opt, longOpt, true, description);
            option.setArgName(argName);

            return addOption(option);
        }

        /**
         * Add option without argument
         * @param opt shortcut for option name
         * @param longOpt complete option name
         * @param description description of the option
         * @return updated Options object
         */
        public Options addOption(String opt, String longOpt, String description)
        {
            return addOption(new Option(opt, longOpt, false, description));
        }
    }
}
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