/**
*
* 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.assertArrayEquals;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.UUID;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.conf.Configurable;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FSDataOutputStream;
import org.apache.hadoop.fs.FileStatus;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.hbase.HBaseTestingUtility;
import org.apache.hadoop.hbase.HConstants;
import org.apache.hadoop.hbase.KeyValue;
import org.apache.hadoop.hbase.LargeTests;
import org.apache.hadoop.hbase.client.HTable;
import org.apache.hadoop.hbase.client.Result;
import org.apache.hadoop.hbase.client.ResultScanner;
import org.apache.hadoop.hbase.client.Scan;
import org.apache.hadoop.hbase.util.Bytes;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapred.Utils.OutputFileUtils.OutputFilesFilter;
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 org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Test;
import org.junit.experimental.categories.Category;
@Category(LargeTests.class)
public class TestImportTsv implements Configurable {
protected static final Log LOG = LogFactory.getLog(TestImportTsv.class);
protected static final String NAME = TestImportTsv.class.getSimpleName();
protected static HBaseTestingUtility util = new HBaseTestingUtility();
/**
* Delete the tmp directory after running doMROnTableTest. Boolean. Default is
* false.
*/
protected static final String DELETE_AFTER_LOAD_CONF = NAME + ".deleteAfterLoad";
/**
* Force use of combiner in doMROnTableTest. Boolean. Default is true.
*/
protected static final String FORCE_COMBINER_CONF = NAME + ".forceCombiner";
private final String FAMILY = "FAM";
public Configuration getConf() {
return util.getConfiguration();
}
public void setConf(Configuration conf) {
throw new IllegalArgumentException("setConf not supported");
}
@BeforeClass
public static void provisionCluster() throws Exception {
util.startMiniCluster();
util.startMiniMapReduceCluster();
}
@AfterClass
public static void releaseCluster() throws Exception {
util.shutdownMiniMapReduceCluster();
util.shutdownMiniCluster();
}
@Test
public void testMROnTable() throws Exception {
String table = "test-" + UUID.randomUUID();
// Prepare the arguments required for the test.
String[] args = new String[] {
"-D" + ImportTsv.COLUMNS_CONF_KEY + "=HBASE_ROW_KEY,FAM:A,FAM:B",
"-D" + ImportTsv.SEPARATOR_CONF_KEY + "=\u001b",
table
};
util.createTable(table, FAMILY);
doMROnTableTest(util, FAMILY, null, args, 1);
util.deleteTable(table);
}
@Test
public void testMROnTableWithTimestamp() throws Exception {
String table = "test-" + UUID.randomUUID();
// Prepare the arguments required for the test.
String[] args = new String[] {
"-D" + ImportTsv.COLUMNS_CONF_KEY
+ "=HBASE_ROW_KEY,HBASE_TS_KEY,FAM:A,FAM:B",
"-D" + ImportTsv.SEPARATOR_CONF_KEY + "=,",
table
};
String data = "KEY,1234,VALUE1,VALUE2\n";
util.createTable(table, FAMILY);
doMROnTableTest(util, FAMILY, data, args, 1);
util.deleteTable(table);
}
@Test
public void testMROnTableWithCustomMapper()
throws Exception {
String table = "test-" + UUID.randomUUID();
// Prepare the arguments required for the test.
String[] args = new String[] {
"-D" + ImportTsv.MAPPER_CONF_KEY + "=org.apache.hadoop.hbase.mapreduce.TsvImporterCustomTestMapper",
table
};
util.createTable(table, FAMILY);
doMROnTableTest(util, FAMILY, null, args, 3);
util.deleteTable(table);
}
@Test
public void testBulkOutputWithoutAnExistingTable() throws Exception {
String table = "test-" + UUID.randomUUID();
// Prepare the arguments required for the test.
Path hfiles = new Path(util.getDataTestDirOnTestFS(table), "hfiles");
String[] args = new String[] {
"-D" + ImportTsv.COLUMNS_CONF_KEY + "=HBASE_ROW_KEY,FAM:A,FAM:B",
"-D" + ImportTsv.SEPARATOR_CONF_KEY + "=\u001b",
"-D" + ImportTsv.BULK_OUTPUT_CONF_KEY + "=" + hfiles.toString(),
table
};
doMROnTableTest(util, FAMILY, null, args, 3);
util.deleteTable(table);
}
@Test
public void testBulkOutputWithAnExistingTable() throws Exception {
String table = "test-" + UUID.randomUUID();
// Prepare the arguments required for the test.
Path hfiles = new Path(util.getDataTestDirOnTestFS(table), "hfiles");
String[] args = new String[] {
"-D" + ImportTsv.COLUMNS_CONF_KEY + "=HBASE_ROW_KEY,FAM:A,FAM:B",
"-D" + ImportTsv.SEPARATOR_CONF_KEY + "=\u001b",
"-D" + ImportTsv.BULK_OUTPUT_CONF_KEY + "=" + hfiles.toString(),
table
};
util.createTable(table, FAMILY);
doMROnTableTest(util, FAMILY, null, args, 3);
util.deleteTable(table);
}
@Test
public void testJobConfigurationsWithTsvImporterTextMapper() throws Exception {
String table = "test-" + UUID.randomUUID();
Path bulkOutputPath = new Path(util.getDataTestDir(table),"hfiles");
String INPUT_FILE = "InputFile1.csv";
// Prepare the arguments required for the test.
String[] args =
new String[] {
"-D" + ImportTsv.MAPPER_CONF_KEY
+ "=org.apache.hadoop.hbase.mapreduce.TsvImporterTextMapper",
"-D" + ImportTsv.COLUMNS_CONF_KEY
+ "=HBASE_ROW_KEY,FAM:A,FAM:B",
"-D" + ImportTsv.SEPARATOR_CONF_KEY + "=,",
"-D" + ImportTsv.BULK_OUTPUT_CONF_KEY + "=" + bulkOutputPath.toString(), table,
INPUT_FILE
};
GenericOptionsParser opts = new GenericOptionsParser(util.getConfiguration(), args);
args = opts.getRemainingArgs();
Job job = ImportTsv.createSubmittableJob(util.getConfiguration(), args);
assertTrue(job.getMapperClass().equals(TsvImporterTextMapper.class));
assertTrue(job.getReducerClass().equals(TextSortReducer.class));
assertTrue(job.getMapOutputValueClass().equals(Text.class));
}
@Test
public void testBulkOutputWithTsvImporterTextMapper() throws Exception {
String table = "test-" + UUID.randomUUID();
String FAMILY = "FAM";
Path bulkOutputPath = new Path(util.getDataTestDir(table),"hfiles");
// Prepare the arguments required for the test.
String[] args =
new String[] {
"-D" + ImportTsv.MAPPER_CONF_KEY
+ "=org.apache.hadoop.hbase.mapreduce.TsvImporterTextMapper",
"-D" + ImportTsv.COLUMNS_CONF_KEY
+ "=HBASE_ROW_KEY,FAM:A,FAM:B",
"-D" + ImportTsv.SEPARATOR_CONF_KEY + "=,",
"-D" + ImportTsv.BULK_OUTPUT_CONF_KEY + "=" + bulkOutputPath.toString(), table
};
String data = "KEY\u001bVALUE4\u001bVALUE8\n";
doMROnTableTest(util, FAMILY, data, args, 4);
}
protected static Tool doMROnTableTest(HBaseTestingUtility util, String family,
String data, String[] args) throws Exception {
return doMROnTableTest(util, family, data, args, 1);
}
/**
* Run an ImportTsv job and perform basic validation on the results.
* Returns the ImportTsv <code>Tool</code> instance so that other tests can
* inspect it for further validation as necessary. This method is static to
* insure non-reliance on instance's util/conf facilities.
* @param args Any arguments to pass BEFORE inputFile path is appended.
* @return The Tool instance used to run the test.
*/
protected static Tool doMROnTableTest(HBaseTestingUtility util, String family,
String data, String[] args, int valueMultiplier)
throws Exception {
String table = args[args.length - 1];
Configuration conf = new Configuration(util.getConfiguration());
// populate input file
FileSystem fs = FileSystem.get(conf);
Path inputPath = fs.makeQualified(new Path(util.getDataTestDirOnTestFS(table), "input.dat"));
FSDataOutputStream op = fs.create(inputPath, true);
if (data == null) {
data = "KEY\u001bVALUE1\u001bVALUE2\n";
}
op.write(Bytes.toBytes(data));
op.close();
LOG.debug(String.format("Wrote test data to file: %s", inputPath));
if (conf.getBoolean(FORCE_COMBINER_CONF, true)) {
LOG.debug("Forcing combiner.");
conf.setInt("min.num.spills.for.combine", 1);
}
// run the import
List<String> argv = new ArrayList<String>(Arrays.asList(args));
argv.add(inputPath.toString());
Tool tool = new ImportTsv();
LOG.debug("Running ImportTsv with arguments: " + argv);
assertEquals(0, ToolRunner.run(conf, tool, argv.toArray(args)));
// Perform basic validation. If the input args did not include
// ImportTsv.BULK_OUTPUT_CONF_KEY then validate data in the table.
// Otherwise, validate presence of hfiles.
boolean createdHFiles = false;
String outputPath = null;
for (String arg : argv) {
if (arg.contains(ImportTsv.BULK_OUTPUT_CONF_KEY)) {
createdHFiles = true;
// split '-Dfoo=bar' on '=' and keep 'bar'
outputPath = arg.split("=")[1];
break;
}
}
if (createdHFiles)
validateHFiles(fs, outputPath, family);
else
validateTable(conf, table, family, valueMultiplier);
if (conf.getBoolean(DELETE_AFTER_LOAD_CONF, true)) {
LOG.debug("Deleting test subdirectory");
util.cleanupDataTestDirOnTestFS(table);
}
return tool;
}
/**
* Confirm ImportTsv via data in online table.
*/
private static void validateTable(Configuration conf, String tableName,
String family, int valueMultiplier) throws IOException {
LOG.debug("Validating table.");
HTable table = new HTable(conf, tableName);
boolean verified = false;
long pause = conf.getLong("hbase.client.pause", 5 * 1000);
int numRetries = conf.getInt(HConstants.HBASE_CLIENT_RETRIES_NUMBER, 5);
for (int i = 0; i < numRetries; i++) {
try {
Scan scan = new Scan();
// Scan entire family.
scan.addFamily(Bytes.toBytes(family));
ResultScanner resScanner = table.getScanner(scan);
for (Result res : resScanner) {
assertTrue(res.size() == 2);
List<KeyValue> kvs = res.list();
assertArrayEquals(kvs.get(0).getRow(), Bytes.toBytes("KEY"));
assertArrayEquals(kvs.get(1).getRow(), Bytes.toBytes("KEY"));
assertArrayEquals(kvs.get(0).getValue(),
Bytes.toBytes("VALUE" + valueMultiplier));
assertArrayEquals(kvs.get(1).getValue(),
Bytes.toBytes("VALUE" + 2 * valueMultiplier));
// Only one result set is expected, so let it loop.
}
verified = true;
break;
} catch (NullPointerException e) {
// If here, a cell was empty. Presume its because updates came in
// after the scanner had been opened. Wait a while and retry.
}
try {
Thread.sleep(pause);
} catch (InterruptedException e) {
// continue
}
}
table.close();
assertTrue(verified);
}
/**
* Confirm ImportTsv via HFiles on fs.
*/
private static void validateHFiles(FileSystem fs, String outputPath, String family)
throws IOException {
// validate number and content of output columns
LOG.debug("Validating HFiles.");
Set<String> configFamilies = new HashSet<String>();
configFamilies.add(family);
Set<String> foundFamilies = new HashSet<String>();
for (FileStatus cfStatus : fs.listStatus(new Path(outputPath), new OutputFilesFilter())) {
String[] elements = cfStatus.getPath().toString().split(Path.SEPARATOR);
String cf = elements[elements.length - 1];
foundFamilies.add(cf);
assertTrue(
String.format(
"HFile ouput contains a column family (%s) not present in input families (%s)",
cf, configFamilies),
configFamilies.contains(cf));
for (FileStatus hfile : fs.listStatus(cfStatus.getPath())) {
assertTrue(
String.format("HFile %s appears to contain no data.", hfile.getPath()),
hfile.getLen() > 0);
}
}
}
}