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HBASE-8609 Make the CopyTable support startRow, stopRow options (Liu Shaohui) 

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1487032 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Zhihong Yu 2013-05-28 18:24:14 +00:00
parent be34e4a7a8
commit 3105761d0a
2 changed files with 192 additions and 10 deletions
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48
hbase-server/src/main/java/org/apache/hadoop/hbase/mapreduce/CopyTable.java
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@ -21,12 +21,15 @@ package org.apache.hadoop.hbase.mapreduce;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.conf.Configured;
import org.apache.hadoop.hbase.HBaseConfiguration;
import org.apache.hadoop.hbase.HConstants;
import org.apache.hadoop.hbase.util.Bytes;
import org.apache.hadoop.hbase.client.Scan;
import org.apache.hadoop.mapreduce.Job;
import org.apache.hadoop.util.GenericOptionsParser;
import org.apache.hadoop.util.Tool;
import org.apache.hadoop.util.ToolRunner;
import java.io.IOException;
import java.util.HashMap;
@ -39,18 +42,23 @@ import java.util.Map;
*/
@InterfaceAudience.Public
@InterfaceStability.Stable
public class CopyTable {
public class CopyTable extends Configured implements Tool {
final static String NAME = "copytable";
static long startTime = 0;
static long endTime = 0;
static int versions = -1;
static String tableName = null;
static String startRow = null;
static String stopRow = null;
static String newTableName = null;
static String peerAddress = null;
static String families = null;
static boolean allCells = false;
public CopyTable(Configuration conf) {
super(conf);
}
/**
* Sets up the actual job.
*
@ -78,6 +86,15 @@ public class CopyTable {
if (versions >= 0) {
scan.setMaxVersions(versions);
}
if (startRow != null) {
scan.setStartRow(Bytes.toBytes(startRow));
}
if (stopRow != null) {
scan.setStopRow(Bytes.toBytes(stopRow));
}
if(families != null) {
String[] fams = families.split(",");
Map<String,String> cfRenameMap = new HashMap<String,String>();
@ -120,6 +137,8 @@ public class CopyTable {
System.err.println(" rs.class hbase.regionserver.class of the peer cluster");
System.err.println(" specify if different from current cluster");
System.err.println(" rs.impl hbase.regionserver.impl of the peer cluster");
System.err.println(" startrow the start row");
System.err.println(" stoprow the stop row");
System.err.println(" starttime beginning of the time range (unixtime in millis)");
System.err.println(" without endtime means from starttime to forever");
System.err.println(" endtime end of the time range. Ignored if no starttime specified.");
@ -160,6 +179,18 @@ public class CopyTable {
return false;
}
final String startRowArgKey = "--startrow=";
if (cmd.startsWith(startRowArgKey)) {
startRow = cmd.substring(startRowArgKey.length());
continue;
}
final String stopRowArgKey = "--stoprow=";
if (cmd.startsWith(stopRowArgKey)) {
stopRow = cmd.substring(stopRowArgKey.length());
continue;
}
final String startTimeArgKey = "--starttime=";
if (cmd.startsWith(startTimeArgKey)) {
startTime = Long.parseLong(cmd.substring(startTimeArgKey.length()));
@ -232,12 +263,15 @@ public class CopyTable {
* @throws Exception When running the job fails.
*/
public static void main(String[] args) throws Exception {
Configuration conf = HBaseConfiguration.create();
String[] otherArgs =
new GenericOptionsParser(conf, args).getRemainingArgs();
Job job = createSubmittableJob(conf, otherArgs);
if (job != null) {
System.exit(job.waitForCompletion(true) ? 0 : 1);
int ret = ToolRunner.run(new CopyTable(HBaseConfiguration.create()), args);
System.exit(ret);
}
@Override
public int run(String[] args) throws Exception {
String[] otherArgs = new GenericOptionsParser(getConf(), args).getRemainingArgs();
Job job = createSubmittableJob(getConf(), otherArgs);
if (job == null) return 1;
return job.waitForCompletion(true) ? 0 : 1;
}
}

148
hbase-server/src/test/java/org/apache/hadoop/hbase/mapreduce/TestCopyTable.java Normal file
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@ -0,0 +1,148 @@
/**
* 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 static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import org.apache.hadoop.hbase.HBaseTestingUtility;
import org.apache.hadoop.hbase.LargeTests;
import org.apache.hadoop.hbase.MiniHBaseCluster;
import org.apache.hadoop.hbase.client.Get;
import org.apache.hadoop.hbase.client.HTable;
import org.apache.hadoop.hbase.client.Put;
import org.apache.hadoop.hbase.client.Result;
import org.apache.hadoop.hbase.util.Bytes;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Test;
import org.junit.experimental.categories.Category;
/**
* Basic test for the CopyTable M/R tool
*/
@Category(LargeTests.class)
public class TestCopyTable {
private static final HBaseTestingUtility TEST_UTIL = new HBaseTestingUtility();
private static MiniHBaseCluster cluster;
@BeforeClass
public static void beforeClass() throws Exception {
cluster = TEST_UTIL.startMiniCluster(3);
TEST_UTIL.startMiniMapReduceCluster();
}
@AfterClass
public static void afterClass() throws Exception {
TEST_UTIL.shutdownMiniMapReduceCluster();
TEST_UTIL.shutdownMiniCluster();
}
/**
* Simple end-to-end test
* @throws Exception
*/
@Test
public void testCopyTable() throws Exception {
final byte[] TABLENAME1 = Bytes.toBytes("testCopyTable1");
final byte[] TABLENAME2 = Bytes.toBytes("testCopyTable2");
final byte[] FAMILY = Bytes.toBytes("family");
final byte[] COLUMN1 = Bytes.toBytes("c1");
HTable t1 = TEST_UTIL.createTable(TABLENAME1, FAMILY);
HTable t2 = TEST_UTIL.createTable(TABLENAME2, FAMILY);
// put rows into the first table
for (int i = 0; i < 10; i++) {
Put p = new Put(Bytes.toBytes("row" + i));
p.add(FAMILY, COLUMN1, COLUMN1);
t1.put(p);
}
CopyTable copy = new CopyTable(TEST_UTIL.getConfiguration());
assertEquals(
0,
copy.run(new String[] { "--new.name=" + Bytes.toString(TABLENAME2),
Bytes.toString(TABLENAME1) }));
// verify the data was copied into table 2
for (int i = 0; i < 10; i++) {
Get g = new Get(Bytes.toBytes("row" + i));
Result r = t2.get(g);
assertEquals(1, r.size());
assertTrue(Bytes.equals(COLUMN1, r.raw()[0].getQualifier()));
}
t1.close();
t2.close();
TEST_UTIL.deleteTable(TABLENAME1);
TEST_UTIL.deleteTable(TABLENAME2);
}
@Test
public void testStartStopRow() throws Exception {
final byte[] TABLENAME1 = Bytes.toBytes("testStartStopRow1");
final byte[] TABLENAME2 = Bytes.toBytes("testStartStopRow2");
final byte[] FAMILY = Bytes.toBytes("family");
final byte[] COLUMN1 = Bytes.toBytes("c1");
final byte[] ROW0 = Bytes.toBytes("row0");
final byte[] ROW1 = Bytes.toBytes("row1");
final byte[] ROW2 = Bytes.toBytes("row2");
HTable t1 = TEST_UTIL.createTable(TABLENAME1, FAMILY);
HTable t2 = TEST_UTIL.createTable(TABLENAME2, FAMILY);
// put rows into the first table
Put p = new Put(ROW0);
p.add(FAMILY, COLUMN1, COLUMN1);
t1.put(p);
p = new Put(ROW1);
p.add(FAMILY, COLUMN1, COLUMN1);
t1.put(p);
p = new Put(ROW2);
p.add(FAMILY, COLUMN1, COLUMN1);
t1.put(p);
CopyTable copy = new CopyTable(TEST_UTIL.getConfiguration());
assertEquals(
0,
copy.run(new String[] { "--new.name=" + Bytes.toString(TABLENAME2), "--startrow=row1",
"--stoprow=row2", Bytes.toString(TABLENAME1) }));
// verify the data was copied into table 2
// row1 exist, row0, row2 do not exist
Get g = new Get(ROW1);
Result r = t2.get(g);
assertEquals(1, r.size());
assertTrue(Bytes.equals(COLUMN1, r.raw()[0].getQualifier()));
g = new Get(ROW0);
r = t2.get(g);
assertEquals(0, r.size());
g = new Get(ROW2);
r = t2.get(g);
assertEquals(0, r.size());
t1.close();
t2.close();
TEST_UTIL.deleteTable(TABLENAME1);
TEST_UTIL.deleteTable(TABLENAME2);
}
}