/**
* 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.tools;
import java.io.IOException;
import java.util.*;
import org.apache.commons.cli.*;
import org.apache.cassandra.config.DatabaseDescriptor;
import org.apache.cassandra.config.Schema;
import org.apache.cassandra.db.ColumnFamilyStore;
import org.apache.cassandra.db.Directories;
import org.apache.cassandra.db.Keyspace;
import org.apache.cassandra.db.compaction.Upgrader;
import org.apache.cassandra.io.sstable.*;
import org.apache.cassandra.utils.OutputHandler;
import static org.apache.cassandra.tools.BulkLoader.CmdLineOptions;
public class StandaloneUpgrader
{
private static final String TOOL_NAME = "sstableupgrade";
private static final String DEBUG_OPTION = "debug";
private static final String HELP_OPTION = "help";
public static void main(String args[]) throws IOException
{
Options options = Options.parseArgs(args);
try
{
// load keyspace descriptions.
DatabaseDescriptor.loadSchemas();
if (Schema.instance.getCFMetaData(options.keyspace, options.cf) == null)
throw new IllegalArgumentException(String.format("Unknown keyspace/columnFamily %s.%s",
options.keyspace,
options.cf));
Keyspace keyspace = Keyspace.openWithoutSSTables(options.keyspace);
ColumnFamilyStore cfs = keyspace.getColumnFamilyStore(options.cf);
OutputHandler handler = new OutputHandler.SystemOutput(false, options.debug);
Directories.SSTableLister lister = cfs.directories.sstableLister();
if (options.snapshot != null)
lister.onlyBackups(true).snapshots(options.snapshot);
else
lister.includeBackups(false);
Collection<SSTableReader> readers = new ArrayList<SSTableReader>();
// Upgrade sstables
for (Map.Entry<Descriptor, Set<Component>> entry : lister.list().entrySet())
{
Set<Component> components = entry.getValue();
if (!components.contains(Component.DATA) || !components.contains(Component.PRIMARY_INDEX))
continue;
try
{
SSTableReader sstable = SSTableReader.openNoValidation(entry.getKey(), components, cfs.metadata);
if (sstable.descriptor.version.equals(Descriptor.Version.CURRENT))
continue;
readers.add(sstable);
}
catch (Exception e)
{
System.err.println(String.format("Error Loading %s: %s", entry.getKey(), e.getMessage()));
if (options.debug)
e.printStackTrace(System.err);
continue;
}
}
int numSSTables = readers.size();
handler.output("Found " + numSSTables + " sstables that need upgrading.");
for (SSTableReader sstable : readers)
{
try
{
Upgrader upgrader = new Upgrader(cfs, sstable, handler);
upgrader.upgrade();
}
catch (Exception e)
{
System.err.println(String.format("Error upgrading %s: %s", sstable, e.getMessage()));
if (options.debug)
e.printStackTrace(System.err);
}
}
SSTableDeletingTask.waitForDeletions();
System.exit(0);
}
catch (Exception e)
{
System.err.println(e.getMessage());
if (options.debug)
e.printStackTrace(System.err);
System.exit(1);
}
}
private static class Options
{
public final String keyspace;
public final String cf;
public final String snapshot;
public boolean debug;
private Options(String keyspace, String cf, String snapshot)
{
this.keyspace = keyspace;
this.cf = cf;
this.snapshot = snapshot;
}
public static Options 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 >= 4 || args.length < 2)
{
String msg = args.length < 2 ? "Missing arguments" : "Too many arguments";
errorMsg(msg, options);
System.exit(1);
}
String keyspace = args[0];
String cf = args[1];
String snapshot = null;
if (args.length == 3)
snapshot = args[2];
Options opts = new Options(keyspace, cf, snapshot);
opts.debug = cmd.hasOption(DEBUG_OPTION);
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("h", HELP_OPTION, "display this help message");
return options;
}
public static void printUsage(CmdLineOptions options)
{
String usage = String.format("%s [options] <keyspace> <cf> [snapshot]", TOOL_NAME);
StringBuilder header = new StringBuilder();
header.append("--\n");
header.append("Upgrade the sstables in the given cf (or snapshot) to the current version of Cassandra." );
header.append("This operation will rewrite the sstables in the specified cf to match the " );
header.append("currently installed version of Cassandra.\n");
header.append("The snapshot option will only upgrade the specified snapshot. Upgrading " );
header.append("snapshots is required before attempting to restore a snapshot taken in a " );
header.append("major version older than the major version Cassandra is currently running. " );
header.append("This will replace the files in the given snapshot as well as break any " );
header.append("hard links to live sstables." );
header.append("\n--\n");
header.append("Options are:");
new HelpFormatter().printHelp(usage, header.toString(), options, "");
}
}
}