001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *     http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018package org.apache.hadoop.hbase.mapreduce;
019
020import org.apache.hadoop.hbase.HBaseInterfaceAudience;
021import org.apache.hadoop.hbase.mapreduce.replication.VerifyReplication;
022import org.apache.hadoop.hbase.mob.mapreduce.MobRefReporter;
023import org.apache.hadoop.hbase.snapshot.ExportSnapshot;
024import org.apache.hadoop.hbase.tool.BulkLoadHFilesTool;
025import org.apache.hadoop.util.ProgramDriver;
026import org.apache.yetus.audience.InterfaceAudience;
027import org.apache.yetus.audience.InterfaceStability;
028
029/**
030 * Driver for hbase mapreduce jobs. Select which to run by passing name of job to this main.
031 */
032@InterfaceAudience.LimitedPrivate(HBaseInterfaceAudience.TOOLS)
033@InterfaceStability.Stable
034public class Driver {
035  private Driver() {
036  }
037
038  public static void main(String[] args) throws Throwable {
039    ProgramDriver pgd = new ProgramDriver();
040
041    pgd.addClass(RowCounter.NAME, RowCounter.class, "Count rows in HBase table.");
042    pgd.addClass(CellCounter.NAME, CellCounter.class, "Count cells in HBase table.");
043    pgd.addClass(Export.NAME, Export.class, "Write table data to HDFS.");
044    pgd.addClass(Import.NAME, Import.class, "Import data written by Export.");
045    pgd.addClass(ImportTsv.NAME, ImportTsv.class, "Import data in TSV format.");
046    pgd.addClass(BulkLoadHFilesTool.NAME, BulkLoadHFilesTool.class, "Complete a bulk data load.");
047    pgd.addClass(CopyTable.NAME, CopyTable.class,
048      "Export a table from local cluster to peer cluster.");
049    pgd.addClass(VerifyReplication.NAME, VerifyReplication.class,
050      "Compare" + " data from tables in two different clusters. It"
051        + " doesn't work for incrementColumnValues'd cells since"
052        + " timestamp is changed after appending to WAL.");
053    pgd.addClass(WALPlayer.NAME, WALPlayer.class, "Replay WAL files.");
054    pgd.addClass(ExportSnapshot.NAME, ExportSnapshot.class,
055      "Export" + " the specific snapshot to a given FileSystem.");
056    pgd.addClass(MobRefReporter.NAME, MobRefReporter.class, "Check the mob cells in a particular "
057      + "table and cf and confirm that the files they point to are correct.");
058
059    ProgramDriver.class.getMethod("driver", new Class[] { String[].class }).invoke(pgd,
060      new Object[] { args });
061  }
062}