org.apache.hadoop.hbase.mapreduce.Driver Maven / Gradle / Ivy
/**
*
* 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.hadoop.hbase.mapreduce;
import org.apache.hadoop.hbase.HBaseInterfaceAudience;
import org.apache.hadoop.hbase.classification.InterfaceAudience;
import org.apache.hadoop.hbase.classification.InterfaceStability;
import org.apache.hadoop.hbase.mapreduce.replication.VerifyReplication;
import org.apache.hadoop.hbase.snapshot.ExportSnapshot;
import org.apache.hadoop.util.ProgramDriver;
/**
* Driver for hbase mapreduce jobs. Select which to run by passing
* name of job to this main.
*/
@InterfaceAudience.LimitedPrivate(HBaseInterfaceAudience.TOOLS)
@InterfaceStability.Stable
public class Driver {
/**
* @param args
* @throws Throwable
*/
public static void main(String[] args) throws Throwable {
ProgramDriver pgd = new ProgramDriver();
pgd.addClass(RowCounter.NAME, RowCounter.class,
"Count rows in HBase table.");
pgd.addClass(CellCounter.NAME, CellCounter.class,
"Count cells in HBase table.");
pgd.addClass(Export.NAME, Export.class, "Write table data to HDFS.");
pgd.addClass(Import.NAME, Import.class, "Import data written by Export.");
pgd.addClass(ImportTsv.NAME, ImportTsv.class, "Import data in TSV format.");
pgd.addClass(LoadIncrementalHFiles.NAME, LoadIncrementalHFiles.class,
"Complete a bulk data load.");
pgd.addClass(CopyTable.NAME, CopyTable.class,
"Export a table from local cluster to peer cluster.");
pgd.addClass(VerifyReplication.NAME, VerifyReplication.class, "Compare" +
" the data from tables in two different clusters. WARNING: It" +
" doesn't work for incrementColumnValues'd cells since the" +
" timestamp is changed after being appended to the log.");
pgd.addClass(WALPlayer.NAME, WALPlayer.class, "Replay WAL files.");
pgd.addClass(ExportSnapshot.NAME, ExportSnapshot.class, "Export" +
" the specific snapshot to a given FileSystem.");
ProgramDriver.class.getMethod("driver", new Class [] {String[].class}).
invoke(pgd, new Object[]{args});
}
}
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