/**
*
* 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.assertFalse;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNotSame;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
import java.io.IOException;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
import java.util.Random;
import java.util.concurrent.Callable;
import com.google.common.collect.Lists;
import junit.framework.Assert;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileStatus;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.hbase.CompatibilitySingletonFactory;
import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.HBaseConfiguration;
import org.apache.hadoop.hbase.HBaseTestingUtility;
import org.apache.hadoop.hbase.HColumnDescriptor;
import org.apache.hadoop.hbase.HConstants;
import org.apache.hadoop.hbase.HTableDescriptor;
import org.apache.hadoop.hbase.HadoopShims;
import org.apache.hadoop.hbase.KeyValue;
import org.apache.hadoop.hbase.LargeTests;
import org.apache.hadoop.hbase.PerformanceEvaluation;
import org.apache.hadoop.hbase.client.HBaseAdmin;
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.client.ResultScanner;
import org.apache.hadoop.hbase.client.Scan;
import org.apache.hadoop.hbase.io.ImmutableBytesWritable;
import org.apache.hadoop.hbase.io.compress.Compression;
import org.apache.hadoop.hbase.io.compress.Compression.Algorithm;
import org.apache.hadoop.hbase.io.hfile.CacheConfig;
import org.apache.hadoop.hbase.io.hfile.HFile;
import org.apache.hadoop.hbase.io.hfile.HFile.Reader;
import org.apache.hadoop.hbase.regionserver.HStore;
import org.apache.hadoop.hbase.regionserver.TimeRangeTracker;
import org.apache.hadoop.hbase.util.Bytes;
import org.apache.hadoop.hbase.util.FSUtils;
import org.apache.hadoop.hbase.util.Threads;
import org.apache.hadoop.hbase.util.Writables;
import org.apache.hadoop.io.NullWritable;
import org.apache.hadoop.mapreduce.Job;
import org.apache.hadoop.mapreduce.Mapper;
import org.apache.hadoop.mapreduce.RecordWriter;
import org.apache.hadoop.mapreduce.TaskAttemptContext;
import org.apache.hadoop.mapreduce.lib.output.FileOutputFormat;
import org.junit.Ignore;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import org.mockito.Mockito;
/**
* Simple test for {@link KeyValueSortReducer} and {@link HFileOutputFormat}.
* Sets up and runs a mapreduce job that writes hfile output.
* Creates a few inner classes to implement splits and an inputformat that
* emits keys and values like those of {@link PerformanceEvaluation}.
*/
@Category(LargeTests.class)
public class TestHFileOutputFormat {
private final static int ROWSPERSPLIT = 1024;
private static final byte[][] FAMILIES
= { Bytes.add(PerformanceEvaluation.FAMILY_NAME, Bytes.toBytes("-A"))
, Bytes.add(PerformanceEvaluation.FAMILY_NAME, Bytes.toBytes("-B"))};
private static final TableName TABLE_NAME =
TableName.valueOf("TestTable");
private HBaseTestingUtility util = new HBaseTestingUtility();
private static Log LOG = LogFactory.getLog(TestHFileOutputFormat.class);
/**
* Simple mapper that makes KeyValue output.
*/
static class RandomKVGeneratingMapper
extends Mapper<NullWritable, NullWritable,
ImmutableBytesWritable, KeyValue> {
private int keyLength;
private static final int KEYLEN_DEFAULT=10;
private static final String KEYLEN_CONF="randomkv.key.length";
private int valLength;
private static final int VALLEN_DEFAULT=10;
private static final String VALLEN_CONF="randomkv.val.length";
@Override
protected void setup(Context context) throws IOException,
InterruptedException {
super.setup(context);
Configuration conf = context.getConfiguration();
keyLength = conf.getInt(KEYLEN_CONF, KEYLEN_DEFAULT);
valLength = conf.getInt(VALLEN_CONF, VALLEN_DEFAULT);
}
protected void map(
NullWritable n1, NullWritable n2,
Mapper<NullWritable, NullWritable,
ImmutableBytesWritable,KeyValue>.Context context)
throws java.io.IOException ,InterruptedException
{
byte keyBytes[] = new byte[keyLength];
byte valBytes[] = new byte[valLength];
int taskId = context.getTaskAttemptID().getTaskID().getId();
assert taskId < Byte.MAX_VALUE : "Unit tests dont support > 127 tasks!";
Random random = new Random();
for (int i = 0; i < ROWSPERSPLIT; i++) {
random.nextBytes(keyBytes);
// Ensure that unique tasks generate unique keys
keyBytes[keyLength - 1] = (byte)(taskId & 0xFF);
random.nextBytes(valBytes);
ImmutableBytesWritable key = new ImmutableBytesWritable(keyBytes);
for (byte[] family : TestHFileOutputFormat.FAMILIES) {
KeyValue kv = new KeyValue(keyBytes, family,
PerformanceEvaluation.QUALIFIER_NAME, valBytes);
context.write(key, kv);
}
}
}
}
private void setupRandomGeneratorMapper(Job job) {
job.setInputFormatClass(NMapInputFormat.class);
job.setMapperClass(RandomKVGeneratingMapper.class);
job.setMapOutputKeyClass(ImmutableBytesWritable.class);
job.setMapOutputValueClass(KeyValue.class);
}
/**
* Test that {@link HFileOutputFormat} RecordWriter amends timestamps if
* passed a keyvalue whose timestamp is {@link HConstants#LATEST_TIMESTAMP}.
* @see <a href="https://issues.apache.org/jira/browse/HBASE-2615">HBASE-2615</a>
*/
@Test
public void test_LATEST_TIMESTAMP_isReplaced()
throws Exception {
Configuration conf = new Configuration(this.util.getConfiguration());
RecordWriter<ImmutableBytesWritable, KeyValue> writer = null;
TaskAttemptContext context = null;
Path dir =
util.getDataTestDir("test_LATEST_TIMESTAMP_isReplaced");
try {
Job job = new Job(conf);
FileOutputFormat.setOutputPath(job, dir);
context = createTestTaskAttemptContext(job);
HFileOutputFormat hof = new HFileOutputFormat();
writer = hof.getRecordWriter(context);
final byte [] b = Bytes.toBytes("b");
// Test 1. Pass a KV that has a ts of LATEST_TIMESTAMP. It should be
// changed by call to write. Check all in kv is same but ts.
KeyValue kv = new KeyValue(b, b, b);
KeyValue original = kv.clone();
writer.write(new ImmutableBytesWritable(), kv);
assertFalse(original.equals(kv));
assertTrue(Bytes.equals(original.getRow(), kv.getRow()));
assertTrue(original.matchingColumn(kv.getFamily(), kv.getQualifier()));
assertNotSame(original.getTimestamp(), kv.getTimestamp());
assertNotSame(HConstants.LATEST_TIMESTAMP, kv.getTimestamp());
// Test 2. Now test passing a kv that has explicit ts. It should not be
// changed by call to record write.
kv = new KeyValue(b, b, b, kv.getTimestamp() - 1, b);
original = kv.clone();
writer.write(new ImmutableBytesWritable(), kv);
assertTrue(original.equals(kv));
} finally {
if (writer != null && context != null) writer.close(context);
dir.getFileSystem(conf).delete(dir, true);
}
}
private TaskAttemptContext createTestTaskAttemptContext(final Job job)
throws IOException, Exception {
HadoopShims hadoop = CompatibilitySingletonFactory.getInstance(HadoopShims.class);
TaskAttemptContext context = hadoop.createTestTaskAttemptContext(job, "attempt_200707121733_0001_m_000000_0");
return context;
}
/*
* Test that {@link HFileOutputFormat} creates an HFile with TIMERANGE
* metadata used by time-restricted scans.
*/
@Test
public void test_TIMERANGE() throws Exception {
Configuration conf = new Configuration(this.util.getConfiguration());
RecordWriter<ImmutableBytesWritable, KeyValue> writer = null;
TaskAttemptContext context = null;
Path dir =
util.getDataTestDir("test_TIMERANGE_present");
LOG.info("Timerange dir writing to dir: "+ dir);
try {
// build a record writer using HFileOutputFormat
Job job = new Job(conf);
FileOutputFormat.setOutputPath(job, dir);
context = createTestTaskAttemptContext(job);
HFileOutputFormat hof = new HFileOutputFormat();
writer = hof.getRecordWriter(context);
// Pass two key values with explicit times stamps
final byte [] b = Bytes.toBytes("b");
// value 1 with timestamp 2000
KeyValue kv = new KeyValue(b, b, b, 2000, b);
KeyValue original = kv.clone();
writer.write(new ImmutableBytesWritable(), kv);
assertEquals(original,kv);
// value 2 with timestamp 1000
kv = new KeyValue(b, b, b, 1000, b);
original = kv.clone();
writer.write(new ImmutableBytesWritable(), kv);
assertEquals(original, kv);
// verify that the file has the proper FileInfo.
writer.close(context);
// the generated file lives 1 directory down from the attempt directory
// and is the only file, e.g.
// _attempt__0000_r_000000_0/b/1979617994050536795
FileSystem fs = FileSystem.get(conf);
Path attemptDirectory = hof.getDefaultWorkFile(context, "").getParent();
FileStatus[] sub1 = fs.listStatus(attemptDirectory);
FileStatus[] file = fs.listStatus(sub1[0].getPath());
// open as HFile Reader and pull out TIMERANGE FileInfo.
HFile.Reader rd = HFile.createReader(fs, file[0].getPath(),
new CacheConfig(conf));
Map<byte[],byte[]> finfo = rd.loadFileInfo();
byte[] range = finfo.get("TIMERANGE".getBytes());
assertNotNull(range);
// unmarshall and check values.
TimeRangeTracker timeRangeTracker = new TimeRangeTracker();
Writables.copyWritable(range, timeRangeTracker);
LOG.info(timeRangeTracker.getMinimumTimestamp() +
"...." + timeRangeTracker.getMaximumTimestamp());
assertEquals(1000, timeRangeTracker.getMinimumTimestamp());
assertEquals(2000, timeRangeTracker.getMaximumTimestamp());
rd.close();
} finally {
if (writer != null && context != null) writer.close(context);
dir.getFileSystem(conf).delete(dir, true);
}
}
/**
* Run small MR job.
*/
@Test
public void testWritingPEData() throws Exception {
Configuration conf = util.getConfiguration();
Path testDir = util.getDataTestDirOnTestFS("testWritingPEData");
FileSystem fs = testDir.getFileSystem(conf);
// Set down this value or we OOME in eclipse.
conf.setInt("io.sort.mb", 20);
// Write a few files.
conf.setLong(HConstants.HREGION_MAX_FILESIZE, 64 * 1024);
Job job = new Job(conf, "testWritingPEData");
setupRandomGeneratorMapper(job);
// This partitioner doesn't work well for number keys but using it anyways
// just to demonstrate how to configure it.
byte[] startKey = new byte[RandomKVGeneratingMapper.KEYLEN_DEFAULT];
byte[] endKey = new byte[RandomKVGeneratingMapper.KEYLEN_DEFAULT];
Arrays.fill(startKey, (byte)0);
Arrays.fill(endKey, (byte)0xff);
job.setPartitionerClass(SimpleTotalOrderPartitioner.class);
// Set start and end rows for partitioner.
SimpleTotalOrderPartitioner.setStartKey(job.getConfiguration(), startKey);
SimpleTotalOrderPartitioner.setEndKey(job.getConfiguration(), endKey);
job.setReducerClass(KeyValueSortReducer.class);
job.setOutputFormatClass(HFileOutputFormat.class);
job.setNumReduceTasks(4);
job.getConfiguration().setStrings("io.serializations", conf.get("io.serializations"),
MutationSerialization.class.getName(), ResultSerialization.class.getName(),
KeyValueSerialization.class.getName());
FileOutputFormat.setOutputPath(job, testDir);
assertTrue(job.waitForCompletion(false));
FileStatus [] files = fs.listStatus(testDir);
assertTrue(files.length > 0);
}
@Test
public void testJobConfiguration() throws Exception {
Job job = new Job(util.getConfiguration());
job.setWorkingDirectory(util.getDataTestDir("testJobConfiguration"));
HTable table = Mockito.mock(HTable.class);
setupMockStartKeys(table);
HFileOutputFormat.configureIncrementalLoad(job, table);
assertEquals(job.getNumReduceTasks(), 4);
}
private byte [][] generateRandomStartKeys(int numKeys) {
Random random = new Random();
byte[][] ret = new byte[numKeys][];
// first region start key is always empty
ret[0] = HConstants.EMPTY_BYTE_ARRAY;
for (int i = 1; i < numKeys; i++) {
ret[i] = PerformanceEvaluation.generateValue(random);
}
return ret;
}
@Test
public void testMRIncrementalLoad() throws Exception {
LOG.info("\nStarting test testMRIncrementalLoad\n");
doIncrementalLoadTest(false);
}
@Test
public void testMRIncrementalLoadWithSplit() throws Exception {
LOG.info("\nStarting test testMRIncrementalLoadWithSplit\n");
doIncrementalLoadTest(true);
}
private void doIncrementalLoadTest(
boolean shouldChangeRegions) throws Exception {
util = new HBaseTestingUtility();
Configuration conf = util.getConfiguration();
byte[][] startKeys = generateRandomStartKeys(5);
HBaseAdmin admin = null;
try {
util.startMiniCluster();
Path testDir = util.getDataTestDirOnTestFS("testLocalMRIncrementalLoad");
admin = new HBaseAdmin(conf);
HTable table = util.createTable(TABLE_NAME, FAMILIES);
assertEquals("Should start with empty table",
0, util.countRows(table));
int numRegions = util.createMultiRegions(
util.getConfiguration(), table, FAMILIES[0], startKeys);
assertEquals("Should make 5 regions", numRegions, 5);
// Generate the bulk load files
util.startMiniMapReduceCluster();
runIncrementalPELoad(conf, table, testDir);
// This doesn't write into the table, just makes files
assertEquals("HFOF should not touch actual table",
0, util.countRows(table));
// Make sure that a directory was created for every CF
int dir = 0;
for (FileStatus f : testDir.getFileSystem(conf).listStatus(testDir)) {
for (byte[] family : FAMILIES) {
if (Bytes.toString(family).equals(f.getPath().getName())) {
++dir;
}
}
}
assertEquals("Column family not found in FS.", FAMILIES.length, dir);
// handle the split case
if (shouldChangeRegions) {
LOG.info("Changing regions in table");
admin.disableTable(table.getTableName());
while(util.getMiniHBaseCluster().getMaster().getAssignmentManager().
getRegionStates().isRegionsInTransition()) {
Threads.sleep(200);
LOG.info("Waiting on table to finish disabling");
}
byte[][] newStartKeys = generateRandomStartKeys(15);
util.createMultiRegions(
util.getConfiguration(), table, FAMILIES[0], newStartKeys);
admin.enableTable(table.getTableName());
while (table.getRegionLocations().size() != 15 ||
!admin.isTableAvailable(table.getTableName())) {
Thread.sleep(200);
LOG.info("Waiting for new region assignment to happen");
}
}
// Perform the actual load
new LoadIncrementalHFiles(conf).doBulkLoad(testDir, table);
// Ensure data shows up
int expectedRows = NMapInputFormat.getNumMapTasks(conf) * ROWSPERSPLIT;
assertEquals("LoadIncrementalHFiles should put expected data in table",
expectedRows, util.countRows(table));
Scan scan = new Scan();
ResultScanner results = table.getScanner(scan);
for (Result res : results) {
assertEquals(FAMILIES.length, res.raw().length);
KeyValue first = res.raw()[0];
for (KeyValue kv : res.raw()) {
assertTrue(KeyValue.COMPARATOR.matchingRows(first, kv));
assertTrue(Bytes.equals(first.getValue(), kv.getValue()));
}
}
results.close();
String tableDigestBefore = util.checksumRows(table);
// Cause regions to reopen
admin.disableTable(TABLE_NAME);
while (!admin.isTableDisabled(TABLE_NAME)) {
Thread.sleep(200);
LOG.info("Waiting for table to disable");
}
admin.enableTable(TABLE_NAME);
util.waitTableAvailable(TABLE_NAME.getName());
assertEquals("Data should remain after reopening of regions",
tableDigestBefore, util.checksumRows(table));
} finally {
if (admin != null) admin.close();
util.shutdownMiniMapReduceCluster();
util.shutdownMiniCluster();
}
}
private void runIncrementalPELoad(
Configuration conf, HTable table, Path outDir)
throws Exception {
Job job = new Job(conf, "testLocalMRIncrementalLoad");
job.setWorkingDirectory(util.getDataTestDirOnTestFS("runIncrementalPELoad"));
job.getConfiguration().setStrings("io.serializations", conf.get("io.serializations"),
MutationSerialization.class.getName(), ResultSerialization.class.getName(),
KeyValueSerialization.class.getName());
setupRandomGeneratorMapper(job);
HFileOutputFormat.configureIncrementalLoad(job, table);
FileOutputFormat.setOutputPath(job, outDir);
Assert.assertFalse( util.getTestFileSystem().exists(outDir)) ;
assertEquals(table.getRegionLocations().size(), job.getNumReduceTasks());
assertTrue(job.waitForCompletion(true));
}
/**
* Test for
* {@link HFileOutputFormat#createFamilyCompressionMap(Configuration)}. Tests
* that the compression map is correctly deserialized from configuration
*
* @throws IOException
*/
@Test
public void testCreateFamilyCompressionMap() throws IOException {
for (int numCfs = 0; numCfs <= 3; numCfs++) {
Configuration conf = new Configuration(this.util.getConfiguration());
Map<String, Compression.Algorithm> familyToCompression = getMockColumnFamilies(numCfs);
HTable table = Mockito.mock(HTable.class);
setupMockColumnFamilies(table, familyToCompression);
HFileOutputFormat.configureCompression(table, conf);
// read back family specific compression setting from the configuration
Map<byte[], String> retrievedFamilyToCompressionMap = HFileOutputFormat.createFamilyCompressionMap(conf);
// test that we have a value for all column families that matches with the
// used mock values
for (Entry<String, Algorithm> entry : familyToCompression.entrySet()) {
assertEquals("Compression configuration incorrect for column family:" + entry.getKey(), entry.getValue()
.getName(), retrievedFamilyToCompressionMap.get(entry.getKey().getBytes()));
}
}
}
private void setupMockColumnFamilies(HTable table,
Map<String, Compression.Algorithm> familyToCompression) throws IOException
{
HTableDescriptor mockTableDescriptor = new HTableDescriptor(TABLE_NAME);
for (Entry<String, Compression.Algorithm> entry : familyToCompression.entrySet()) {
mockTableDescriptor.addFamily(new HColumnDescriptor(entry.getKey())
.setMaxVersions(1)
.setCompressionType(entry.getValue())
.setBlockCacheEnabled(false)
.setTimeToLive(0));
}
Mockito.doReturn(mockTableDescriptor).when(table).getTableDescriptor();
}
private void setupMockStartKeys(HTable table) throws IOException {
byte[][] mockKeys = new byte[][] {
HConstants.EMPTY_BYTE_ARRAY,
Bytes.toBytes("aaa"),
Bytes.toBytes("ggg"),
Bytes.toBytes("zzz")
};
Mockito.doReturn(mockKeys).when(table).getStartKeys();
}
/**
* @return a map from column family names to compression algorithms for
* testing column family compression. Column family names have special characters
*/
private Map<String, Compression.Algorithm> getMockColumnFamilies(int numCfs) {
Map<String, Compression.Algorithm> familyToCompression = new HashMap<String, Compression.Algorithm>();
// use column family names having special characters
if (numCfs-- > 0) {
familyToCompression.put("Family1!@#!@#&", Compression.Algorithm.LZO);
}
if (numCfs-- > 0) {
familyToCompression.put("Family2=asdads&!AASD", Compression.Algorithm.SNAPPY);
}
if (numCfs-- > 0) {
familyToCompression.put("Family2=asdads&!AASD", Compression.Algorithm.GZ);
}
if (numCfs-- > 0) {
familyToCompression.put("Family3", Compression.Algorithm.NONE);
}
return familyToCompression;
}
/**
* Test that {@link HFileOutputFormat} RecordWriter uses compression settings
* from the column family descriptor
*/
@Test
public void testColumnFamilyCompression() throws Exception {
Configuration conf = new Configuration(this.util.getConfiguration());
RecordWriter<ImmutableBytesWritable, KeyValue> writer = null;
TaskAttemptContext context = null;
Path dir =
util.getDataTestDirOnTestFS("testColumnFamilyCompression");
HTable table = Mockito.mock(HTable.class);
Map<String, Compression.Algorithm> configuredCompression =
new HashMap<String, Compression.Algorithm>();
Compression.Algorithm[] supportedAlgos = getSupportedCompressionAlgorithms();
int familyIndex = 0;
for (byte[] family : FAMILIES) {
configuredCompression.put(Bytes.toString(family),
supportedAlgos[familyIndex++ % supportedAlgos.length]);
}
setupMockColumnFamilies(table, configuredCompression);
// set up the table to return some mock keys
setupMockStartKeys(table);
try {
// partial map red setup to get an operational writer for testing
// We turn off the sequence file compression, because DefaultCodec
// pollutes the GZip codec pool with an incompatible compressor.
conf.set("io.seqfile.compression.type", "NONE");
Job job = new Job(conf, "testLocalMRIncrementalLoad");
job.setWorkingDirectory(util.getDataTestDirOnTestFS("testColumnFamilyCompression"));
setupRandomGeneratorMapper(job);
HFileOutputFormat.configureIncrementalLoad(job, table);
FileOutputFormat.setOutputPath(job, dir);
context = createTestTaskAttemptContext(job);
HFileOutputFormat hof = new HFileOutputFormat();
writer = hof.getRecordWriter(context);
// write out random rows
writeRandomKeyValues(writer, context, ROWSPERSPLIT);
writer.close(context);
// Make sure that a directory was created for every CF
FileSystem fileSystem = dir.getFileSystem(conf);
// commit so that the filesystem has one directory per column family
hof.getOutputCommitter(context).commitTask(context);
hof.getOutputCommitter(context).commitJob(context);
for (byte[] family : FAMILIES) {
String familyStr = new String(family);
boolean found = false;
for (FileStatus f : fileSystem.listStatus(dir)) {
if (Bytes.toString(family).equals(f.getPath().getName())) {
// we found a matching directory
found = true;
// verify that the compression on this file matches the configured
// compression
Path dataFilePath = fileSystem.listStatus(f.getPath())[0].getPath();
Reader reader = HFile.createReader(fileSystem, dataFilePath,
new CacheConfig(conf));
reader.loadFileInfo();
assertEquals("Incorrect compression used for column family " + familyStr
+ "(reader: " + reader + ")",
configuredCompression.get(familyStr), reader.getCompressionAlgorithm());
break;
}
}
if (!found) {
fail("HFile for column family " + familyStr + " not found");
}
}
} finally {
dir.getFileSystem(conf).delete(dir, true);
}
}
/**
* @return
*/
private Compression.Algorithm[] getSupportedCompressionAlgorithms() {
String[] allAlgos = HFile.getSupportedCompressionAlgorithms();
List<Compression.Algorithm> supportedAlgos = Lists.newArrayList();
for (String algoName : allAlgos) {
try {
Compression.Algorithm algo = Compression.getCompressionAlgorithmByName(algoName);
algo.getCompressor();
supportedAlgos.add(algo);
} catch (Throwable t) {
// this algo is not available
}
}
return supportedAlgos.toArray(new Compression.Algorithm[0]);
}
/**
* Write random values to the writer assuming a table created using
* {@link #FAMILIES} as column family descriptors
*/
private void writeRandomKeyValues(RecordWriter<ImmutableBytesWritable, KeyValue> writer, TaskAttemptContext context,
int numRows)
throws IOException, InterruptedException {
byte keyBytes[] = new byte[Bytes.SIZEOF_INT];
int valLength = 10;
byte valBytes[] = new byte[valLength];
int taskId = context.getTaskAttemptID().getTaskID().getId();
assert taskId < Byte.MAX_VALUE : "Unit tests dont support > 127 tasks!";
Random random = new Random();
for (int i = 0; i < numRows; i++) {
Bytes.putInt(keyBytes, 0, i);
random.nextBytes(valBytes);
ImmutableBytesWritable key = new ImmutableBytesWritable(keyBytes);
for (byte[] family : TestHFileOutputFormat.FAMILIES) {
KeyValue kv = new KeyValue(keyBytes, family,
PerformanceEvaluation.QUALIFIER_NAME, valBytes);
writer.write(key, kv);
}
}
}
/**
* This test is to test the scenario happened in HBASE-6901.
* All files are bulk loaded and excluded from minor compaction.
* Without the fix of HBASE-6901, an ArrayIndexOutOfBoundsException
* will be thrown.
*/
@Ignore ("Flakey: See HBASE-9051") @Test
public void testExcludeAllFromMinorCompaction() throws Exception {
Configuration conf = util.getConfiguration();
conf.setInt("hbase.hstore.compaction.min", 2);
generateRandomStartKeys(5);
try {
util.startMiniCluster();
final FileSystem fs = util.getDFSCluster().getFileSystem();
HBaseAdmin admin = new HBaseAdmin(conf);
HTable table = util.createTable(TABLE_NAME, FAMILIES);
assertEquals("Should start with empty table", 0, util.countRows(table));
// deep inspection: get the StoreFile dir
final Path storePath = HStore.getStoreHomedir(
FSUtils.getTableDir(FSUtils.getRootDir(conf), TABLE_NAME),
admin.getTableRegions(TABLE_NAME).get(0),
FAMILIES[0]);
assertEquals(0, fs.listStatus(storePath).length);
// Generate two bulk load files
conf.setBoolean("hbase.mapreduce.hfileoutputformat.compaction.exclude",
true);
util.startMiniMapReduceCluster();
for (int i = 0; i < 2; i++) {
Path testDir = util.getDataTestDirOnTestFS("testExcludeAllFromMinorCompaction_" + i);
runIncrementalPELoad(conf, table, testDir);
// Perform the actual load
new LoadIncrementalHFiles(conf).doBulkLoad(testDir, table);
}
// Ensure data shows up
int expectedRows = 2 * NMapInputFormat.getNumMapTasks(conf) * ROWSPERSPLIT;
assertEquals("LoadIncrementalHFiles should put expected data in table",
expectedRows, util.countRows(table));
// should have a second StoreFile now
assertEquals(2, fs.listStatus(storePath).length);
// minor compactions shouldn't get rid of the file
admin.compact(TABLE_NAME.getName());
try {
quickPoll(new Callable<Boolean>() {
public Boolean call() throws Exception {
return fs.listStatus(storePath).length == 1;
}
}, 5000);
throw new IOException("SF# = " + fs.listStatus(storePath).length);
} catch (AssertionError ae) {
// this is expected behavior
}
// a major compaction should work though
admin.majorCompact(TABLE_NAME.getName());
quickPoll(new Callable<Boolean>() {
public Boolean call() throws Exception {
return fs.listStatus(storePath).length == 1;
}
}, 5000);
} finally {
util.shutdownMiniMapReduceCluster();
util.shutdownMiniCluster();
}
}
@Test
public void testExcludeMinorCompaction() throws Exception {
Configuration conf = util.getConfiguration();
conf.setInt("hbase.hstore.compaction.min", 2);
generateRandomStartKeys(5);
try {
util.startMiniCluster();
Path testDir = util.getDataTestDirOnTestFS("testExcludeMinorCompaction");
final FileSystem fs = util.getDFSCluster().getFileSystem();
HBaseAdmin admin = new HBaseAdmin(conf);
HTable table = util.createTable(TABLE_NAME, FAMILIES);
assertEquals("Should start with empty table", 0, util.countRows(table));
// deep inspection: get the StoreFile dir
final Path storePath = HStore.getStoreHomedir(
FSUtils.getTableDir(FSUtils.getRootDir(conf), TABLE_NAME),
admin.getTableRegions(TABLE_NAME).get(0),
FAMILIES[0]);
assertEquals(0, fs.listStatus(storePath).length);
// put some data in it and flush to create a storefile
Put p = new Put(Bytes.toBytes("test"));
p.add(FAMILIES[0], Bytes.toBytes("1"), Bytes.toBytes("1"));
table.put(p);
admin.flush(TABLE_NAME.getName());
assertEquals(1, util.countRows(table));
quickPoll(new Callable<Boolean>() {
public Boolean call() throws Exception {
return fs.listStatus(storePath).length == 1;
}
}, 5000);
// Generate a bulk load file with more rows
conf.setBoolean("hbase.mapreduce.hfileoutputformat.compaction.exclude",
true);
util.startMiniMapReduceCluster();
runIncrementalPELoad(conf, table, testDir);
// Perform the actual load
new LoadIncrementalHFiles(conf).doBulkLoad(testDir, table);
// Ensure data shows up
int expectedRows = NMapInputFormat.getNumMapTasks(conf) * ROWSPERSPLIT;
assertEquals("LoadIncrementalHFiles should put expected data in table",
expectedRows + 1, util.countRows(table));
// should have a second StoreFile now
assertEquals(2, fs.listStatus(storePath).length);
// minor compactions shouldn't get rid of the file
admin.compact(TABLE_NAME.getName());
try {
quickPoll(new Callable<Boolean>() {
public Boolean call() throws Exception {
return fs.listStatus(storePath).length == 1;
}
}, 5000);
throw new IOException("SF# = " + fs.listStatus(storePath).length);
} catch (AssertionError ae) {
// this is expected behavior
}
// a major compaction should work though
admin.majorCompact(TABLE_NAME.getName());
quickPoll(new Callable<Boolean>() {
public Boolean call() throws Exception {
return fs.listStatus(storePath).length == 1;
}
}, 5000);
} finally {
util.shutdownMiniMapReduceCluster();
util.shutdownMiniCluster();
}
}
private void quickPoll(Callable<Boolean> c, int waitMs) throws Exception {
int sleepMs = 10;
int retries = (int) Math.ceil(((double) waitMs) / sleepMs);
while (retries-- > 0) {
if (c.call().booleanValue()) {
return;
}
Thread.sleep(sleepMs);
}
fail();
}
public static void main(String args[]) throws Exception {
new TestHFileOutputFormat().manualTest(args);
}
public void manualTest(String args[]) throws Exception {
Configuration conf = HBaseConfiguration.create();
util = new HBaseTestingUtility(conf);
if ("newtable".equals(args[0])) {
byte[] tname = args[1].getBytes();
HTable table = util.createTable(tname, FAMILIES);
HBaseAdmin admin = new HBaseAdmin(conf);
admin.disableTable(tname);
byte[][] startKeys = generateRandomStartKeys(5);
util.createMultiRegions(conf, table, FAMILIES[0], startKeys);
admin.enableTable(tname);
} else if ("incremental".equals(args[0])) {
byte[] tname = args[1].getBytes();
HTable table = new HTable(conf, tname);
Path outDir = new Path("incremental-out");
runIncrementalPELoad(conf, table, outDir);
} else {
throw new RuntimeException(
"usage: TestHFileOutputFormat newtable | incremental");
}
}
}