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1   /**
2    *
3    * Licensed to the Apache Software Foundation (ASF) under one
4    * or more contributor license agreements.  See the NOTICE file
5    * distributed with this work for additional information
6    * regarding copyright ownership.  The ASF licenses this file
7    * to you under the Apache License, Version 2.0 (the
8    * "License"); you may not use this file except in compliance
9    * with the License.  You may obtain a copy of the License at
10   *
11   *     http://www.apache.org/licenses/LICENSE-2.0
12   *
13   * Unless required by applicable law or agreed to in writing, software
14   * distributed under the License is distributed on an "AS IS" BASIS,
15   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16   * See the License for the specific language governing permissions and
17   * limitations under the License.
18   */
19  package org.apache.hadoop.hbase.mapreduce;
20  
21  import static org.junit.Assert.assertEquals;
22  import static org.junit.Assert.assertFalse;
23  import static org.junit.Assert.assertNotNull;
24  import static org.junit.Assert.assertNotSame;
25  import static org.junit.Assert.assertTrue;
26  import static org.junit.Assert.fail;
27  
28  import java.io.IOException;
29  import java.io.UnsupportedEncodingException;
30  import java.util.Arrays;
31  import java.util.HashMap;
32  import java.util.Iterator;
33  import java.util.List;
34  import java.util.Map;
35  import java.util.Map.Entry;
36  import java.util.Random;
37  import java.util.Set;
38  import java.util.concurrent.Callable;
39  
40  import org.apache.commons.logging.Log;
41  import org.apache.commons.logging.LogFactory;
42  import org.apache.hadoop.conf.Configuration;
43  import org.apache.hadoop.fs.FileStatus;
44  import org.apache.hadoop.fs.FileSystem;
45  import org.apache.hadoop.fs.LocatedFileStatus;
46  import org.apache.hadoop.fs.Path;
47  import org.apache.hadoop.fs.RemoteIterator;
48  import org.apache.hadoop.hbase.CategoryBasedTimeout;
49  import org.apache.hadoop.hbase.Cell;
50  import org.apache.hadoop.hbase.CellUtil;
51  import org.apache.hadoop.hbase.CompatibilitySingletonFactory;
52  import org.apache.hadoop.hbase.HBaseConfiguration;
53  import org.apache.hadoop.hbase.HBaseTestingUtility;
54  import org.apache.hadoop.hbase.HColumnDescriptor;
55  import org.apache.hadoop.hbase.HConstants;
56  import org.apache.hadoop.hbase.HDFSBlocksDistribution;
57  import org.apache.hadoop.hbase.HTableDescriptor;
58  import org.apache.hadoop.hbase.HadoopShims;
59  import org.apache.hadoop.hbase.KeyValue;
60  import org.apache.hadoop.hbase.PerformanceEvaluation;
61  import org.apache.hadoop.hbase.TableName;
62  import org.apache.hadoop.hbase.Tag;
63  import org.apache.hadoop.hbase.TagType;
64  import org.apache.hadoop.hbase.client.Admin;
65  import org.apache.hadoop.hbase.client.Connection;
66  import org.apache.hadoop.hbase.client.ConnectionFactory;
67  import org.apache.hadoop.hbase.client.HTable;
68  import org.apache.hadoop.hbase.client.Put;
69  import org.apache.hadoop.hbase.client.RegionLocator;
70  import org.apache.hadoop.hbase.client.Result;
71  import org.apache.hadoop.hbase.client.ResultScanner;
72  import org.apache.hadoop.hbase.client.Scan;
73  import org.apache.hadoop.hbase.client.Table;
74  import org.apache.hadoop.hbase.io.ImmutableBytesWritable;
75  import org.apache.hadoop.hbase.io.compress.Compression;
76  import org.apache.hadoop.hbase.io.compress.Compression.Algorithm;
77  import org.apache.hadoop.hbase.io.encoding.DataBlockEncoding;
78  import org.apache.hadoop.hbase.io.hfile.CacheConfig;
79  import org.apache.hadoop.hbase.io.hfile.HFile;
80  import org.apache.hadoop.hbase.io.hfile.HFile.Reader;
81  import org.apache.hadoop.hbase.io.hfile.HFileScanner;
82  import org.apache.hadoop.hbase.regionserver.BloomType;
83  import org.apache.hadoop.hbase.regionserver.HRegion;
84  import org.apache.hadoop.hbase.regionserver.Store;
85  import org.apache.hadoop.hbase.regionserver.StoreFile;
86  import org.apache.hadoop.hbase.regionserver.TimeRangeTracker;
87  import org.apache.hadoop.hbase.testclassification.LargeTests;
88  import org.apache.hadoop.hbase.util.Bytes;
89  import org.apache.hadoop.hbase.util.FSUtils;
90  import org.apache.hadoop.hbase.util.Threads;
91  import org.apache.hadoop.hbase.util.Writables;
92  import org.apache.hadoop.io.NullWritable;
93  import org.apache.hadoop.mapreduce.Job;
94  import org.apache.hadoop.mapreduce.Mapper;
95  import org.apache.hadoop.mapreduce.RecordWriter;
96  import org.apache.hadoop.mapreduce.TaskAttemptContext;
97  import org.apache.hadoop.mapreduce.lib.output.FileOutputFormat;
98  import org.junit.Ignore;
99  import org.junit.Rule;
100 import org.junit.Test;
101 import org.junit.experimental.categories.Category;
102 import org.junit.rules.TestRule;
103 import org.mockito.Mockito;
104 
105 import com.google.common.collect.Lists;
106 
107 /**
108  * Simple test for {@link CellSortReducer} and {@link HFileOutputFormat2}.
109  * Sets up and runs a mapreduce job that writes hfile output.
110  * Creates a few inner classes to implement splits and an inputformat that
111  * emits keys and values like those of {@link PerformanceEvaluation}.
112  */
113 @Category(LargeTests.class)
114 public class TestHFileOutputFormat2  {
115   @Rule public final TestRule timeout = CategoryBasedTimeout.builder().
116       withTimeout(this.getClass()).withLookingForStuckThread(true).build();
117   private final static int ROWSPERSPLIT = 1024;
118 
119   private static final byte[][] FAMILIES
120     = { Bytes.add(PerformanceEvaluation.FAMILY_NAME, Bytes.toBytes("-A"))
121       , Bytes.add(PerformanceEvaluation.FAMILY_NAME, Bytes.toBytes("-B"))};
122   private static final TableName TABLE_NAME =
123       TableName.valueOf("TestTable");
124 
125   private HBaseTestingUtility util = new HBaseTestingUtility();
126 
127   private static final Log LOG = LogFactory.getLog(TestHFileOutputFormat2.class);
128 
129   /**
130    * Simple mapper that makes KeyValue output.
131    */
132   static class RandomKVGeneratingMapper
133       extends Mapper<NullWritable, NullWritable,
134                  ImmutableBytesWritable, Cell> {
135 
136     private int keyLength;
137     private static final int KEYLEN_DEFAULT=10;
138     private static final String KEYLEN_CONF="randomkv.key.length";
139 
140     private int valLength;
141     private static final int VALLEN_DEFAULT=10;
142     private static final String VALLEN_CONF="randomkv.val.length";
143     private static final byte [] QUALIFIER = Bytes.toBytes("data");
144 
145     @Override
146     protected void setup(Context context) throws IOException,
147         InterruptedException {
148       super.setup(context);
149 
150       Configuration conf = context.getConfiguration();
151       keyLength = conf.getInt(KEYLEN_CONF, KEYLEN_DEFAULT);
152       valLength = conf.getInt(VALLEN_CONF, VALLEN_DEFAULT);
153     }
154 
155     @Override
156     protected void map(
157         NullWritable n1, NullWritable n2,
158         Mapper<NullWritable, NullWritable,
159                ImmutableBytesWritable,Cell>.Context context)
160         throws java.io.IOException ,InterruptedException
161     {
162 
163       byte keyBytes[] = new byte[keyLength];
164       byte valBytes[] = new byte[valLength];
165 
166       int taskId = context.getTaskAttemptID().getTaskID().getId();
167       assert taskId < Byte.MAX_VALUE : "Unit tests dont support > 127 tasks!";
168 
169       Random random = new Random();
170       for (int i = 0; i < ROWSPERSPLIT; i++) {
171 
172         random.nextBytes(keyBytes);
173         // Ensure that unique tasks generate unique keys
174         keyBytes[keyLength - 1] = (byte)(taskId & 0xFF);
175         random.nextBytes(valBytes);
176         ImmutableBytesWritable key = new ImmutableBytesWritable(keyBytes);
177 
178         for (byte[] family : TestHFileOutputFormat2.FAMILIES) {
179           Cell kv = new KeyValue(keyBytes, family, QUALIFIER, valBytes);
180           context.write(key, kv);
181         }
182       }
183     }
184   }
185 
186   private void setupRandomGeneratorMapper(Job job) {
187     job.setInputFormatClass(NMapInputFormat.class);
188     job.setMapperClass(RandomKVGeneratingMapper.class);
189     job.setMapOutputKeyClass(ImmutableBytesWritable.class);
190     job.setMapOutputValueClass(KeyValue.class);
191   }
192 
193   /**
194    * Test that {@link HFileOutputFormat2} RecordWriter amends timestamps if
195    * passed a keyvalue whose timestamp is {@link HConstants#LATEST_TIMESTAMP}.
196    * @see <a href="https://issues.apache.org/jira/browse/HBASE-2615">HBASE-2615</a>
197    */
198   @Ignore("Goes zombie too frequently; needs work. See HBASE-14563") @Test
199   public void test_LATEST_TIMESTAMP_isReplaced()
200   throws Exception {
201     Configuration conf = new Configuration(this.util.getConfiguration());
202     RecordWriter<ImmutableBytesWritable, Cell> writer = null;
203     TaskAttemptContext context = null;
204     Path dir =
205       util.getDataTestDir("test_LATEST_TIMESTAMP_isReplaced");
206     try {
207       Job job = new Job(conf);
208       FileOutputFormat.setOutputPath(job, dir);
209       context = createTestTaskAttemptContext(job);
210       HFileOutputFormat2 hof = new HFileOutputFormat2();
211       writer = hof.getRecordWriter(context);
212       final byte [] b = Bytes.toBytes("b");
213 
214       // Test 1.  Pass a KV that has a ts of LATEST_TIMESTAMP.  It should be
215       // changed by call to write.  Check all in kv is same but ts.
216       KeyValue kv = new KeyValue(b, b, b);
217       KeyValue original = kv.clone();
218       writer.write(new ImmutableBytesWritable(), kv);
219       assertFalse(original.equals(kv));
220       assertTrue(Bytes.equals(CellUtil.cloneRow(original), CellUtil.cloneRow(kv)));
221       assertTrue(Bytes.equals(CellUtil.cloneFamily(original), CellUtil.cloneFamily(kv)));
222       assertTrue(Bytes.equals(CellUtil.cloneQualifier(original), CellUtil.cloneQualifier(kv)));
223       assertNotSame(original.getTimestamp(), kv.getTimestamp());
224       assertNotSame(HConstants.LATEST_TIMESTAMP, kv.getTimestamp());
225 
226       // Test 2. Now test passing a kv that has explicit ts.  It should not be
227       // changed by call to record write.
228       kv = new KeyValue(b, b, b, kv.getTimestamp() - 1, b);
229       original = kv.clone();
230       writer.write(new ImmutableBytesWritable(), kv);
231       assertTrue(original.equals(kv));
232     } finally {
233       if (writer != null && context != null) writer.close(context);
234       dir.getFileSystem(conf).delete(dir, true);
235     }
236   }
237 
238   private TaskAttemptContext createTestTaskAttemptContext(final Job job)
239   throws Exception {
240     HadoopShims hadoop = CompatibilitySingletonFactory.getInstance(HadoopShims.class);
241     TaskAttemptContext context = hadoop.createTestTaskAttemptContext(
242       job, "attempt_201402131733_0001_m_000000_0");
243     return context;
244   }
245 
246   /*
247    * Test that {@link HFileOutputFormat2} creates an HFile with TIMERANGE
248    * metadata used by time-restricted scans.
249    */
250   @Ignore("Goes zombie too frequently; needs work. See HBASE-14563") @Test
251   public void test_TIMERANGE() throws Exception {
252     Configuration conf = new Configuration(this.util.getConfiguration());
253     RecordWriter<ImmutableBytesWritable, Cell> writer = null;
254     TaskAttemptContext context = null;
255     Path dir =
256       util.getDataTestDir("test_TIMERANGE_present");
257     LOG.info("Timerange dir writing to dir: " + dir);
258     try {
259       // build a record writer using HFileOutputFormat2
260       Job job = new Job(conf);
261       FileOutputFormat.setOutputPath(job, dir);
262       context = createTestTaskAttemptContext(job);
263       HFileOutputFormat2 hof = new HFileOutputFormat2();
264       writer = hof.getRecordWriter(context);
265 
266       // Pass two key values with explicit times stamps
267       final byte [] b = Bytes.toBytes("b");
268 
269       // value 1 with timestamp 2000
270       KeyValue kv = new KeyValue(b, b, b, 2000, b);
271       KeyValue original = kv.clone();
272       writer.write(new ImmutableBytesWritable(), kv);
273       assertEquals(original,kv);
274 
275       // value 2 with timestamp 1000
276       kv = new KeyValue(b, b, b, 1000, b);
277       original = kv.clone();
278       writer.write(new ImmutableBytesWritable(), kv);
279       assertEquals(original, kv);
280 
281       // verify that the file has the proper FileInfo.
282       writer.close(context);
283 
284       // the generated file lives 1 directory down from the attempt directory
285       // and is the only file, e.g.
286       // _attempt__0000_r_000000_0/b/1979617994050536795
287       FileSystem fs = FileSystem.get(conf);
288       Path attemptDirectory = hof.getDefaultWorkFile(context, "").getParent();
289       FileStatus[] sub1 = fs.listStatus(attemptDirectory);
290       FileStatus[] file = fs.listStatus(sub1[0].getPath());
291 
292       // open as HFile Reader and pull out TIMERANGE FileInfo.
293       HFile.Reader rd = HFile.createReader(fs, file[0].getPath(),
294           new CacheConfig(conf), conf);
295       Map<byte[],byte[]> finfo = rd.loadFileInfo();
296       byte[] range = finfo.get("TIMERANGE".getBytes());
297       assertNotNull(range);
298 
299       // unmarshall and check values.
300       TimeRangeTracker timeRangeTracker = new TimeRangeTracker();
301       Writables.copyWritable(range, timeRangeTracker);
302       LOG.info(timeRangeTracker.getMin() +
303           "...." + timeRangeTracker.getMax());
304       assertEquals(1000, timeRangeTracker.getMin());
305       assertEquals(2000, timeRangeTracker.getMax());
306       rd.close();
307     } finally {
308       if (writer != null && context != null) writer.close(context);
309       dir.getFileSystem(conf).delete(dir, true);
310     }
311   }
312 
313   /**
314    * Run small MR job.
315    */
316   @Ignore("Goes zombie too frequently; needs work. See HBASE-14563") @Test
317   public void testWritingPEData() throws Exception {
318     Configuration conf = util.getConfiguration();
319     Path testDir = util.getDataTestDirOnTestFS("testWritingPEData");
320     FileSystem fs = testDir.getFileSystem(conf);
321 
322     // Set down this value or we OOME in eclipse.
323     conf.setInt("mapreduce.task.io.sort.mb", 20);
324     // Write a few files.
325     conf.setLong(HConstants.HREGION_MAX_FILESIZE, 64 * 1024);
326 
327     Job job = new Job(conf, "testWritingPEData");
328     setupRandomGeneratorMapper(job);
329     // This partitioner doesn't work well for number keys but using it anyways
330     // just to demonstrate how to configure it.
331     byte[] startKey = new byte[RandomKVGeneratingMapper.KEYLEN_DEFAULT];
332     byte[] endKey = new byte[RandomKVGeneratingMapper.KEYLEN_DEFAULT];
333 
334     Arrays.fill(startKey, (byte)0);
335     Arrays.fill(endKey, (byte)0xff);
336 
337     job.setPartitionerClass(SimpleTotalOrderPartitioner.class);
338     // Set start and end rows for partitioner.
339     SimpleTotalOrderPartitioner.setStartKey(job.getConfiguration(), startKey);
340     SimpleTotalOrderPartitioner.setEndKey(job.getConfiguration(), endKey);
341     job.setReducerClass(KeyValueSortReducer.class);
342     job.setOutputFormatClass(HFileOutputFormat2.class);
343     job.setNumReduceTasks(4);
344     job.getConfiguration().setStrings("io.serializations", conf.get("io.serializations"),
345         MutationSerialization.class.getName(), ResultSerialization.class.getName(),
346         KeyValueSerialization.class.getName());
347 
348     FileOutputFormat.setOutputPath(job, testDir);
349     assertTrue(job.waitForCompletion(false));
350     FileStatus [] files = fs.listStatus(testDir);
351     assertTrue(files.length > 0);
352   }
353 
354   /**
355    * Test that {@link HFileOutputFormat2} RecordWriter writes tags such as ttl into
356    * hfile.
357    */
358   @Test
359   public void test_WritingTagData()
360       throws Exception {
361     Configuration conf = new Configuration(this.util.getConfiguration());
362     final String HFILE_FORMAT_VERSION_CONF_KEY = "hfile.format.version";
363     conf.setInt(HFILE_FORMAT_VERSION_CONF_KEY, HFile.MIN_FORMAT_VERSION_WITH_TAGS);
364     RecordWriter<ImmutableBytesWritable, Cell> writer = null;
365     TaskAttemptContext context = null;
366     Path dir =
367         util.getDataTestDir("WritingTagData");
368     try {
369       Job job = new Job(conf);
370       FileOutputFormat.setOutputPath(job, dir);
371       context = createTestTaskAttemptContext(job);
372       HFileOutputFormat2 hof = new HFileOutputFormat2();
373       writer = hof.getRecordWriter(context);
374       final byte [] b = Bytes.toBytes("b");
375 
376       KeyValue kv = new KeyValue(b, b, b, HConstants.LATEST_TIMESTAMP, b, new Tag[] {
377           new Tag(TagType.TTL_TAG_TYPE, Bytes.toBytes(978670)) });
378       writer.write(new ImmutableBytesWritable(), kv);
379       writer.close(context);
380       writer = null;
381       FileSystem fs = dir.getFileSystem(conf);
382       RemoteIterator<LocatedFileStatus> iterator = fs.listFiles(dir, true);
383       while(iterator.hasNext()) {
384         LocatedFileStatus keyFileStatus = iterator.next();
385         HFile.Reader reader = HFile.createReader(fs, keyFileStatus.getPath(), new CacheConfig(conf),
386             conf);
387         HFileScanner scanner = reader.getScanner(false, false, false);
388         scanner.seekTo();
389         Cell cell = scanner.getKeyValue();
390 
391         Iterator<Tag> tagsIterator = CellUtil.tagsIterator(cell.getTagsArray(),
392             cell.getTagsOffset(), cell.getTagsLength());
393         assertTrue(tagsIterator.hasNext());
394         assertTrue(tagsIterator.next().getType() == TagType.TTL_TAG_TYPE);
395       }
396     } finally {
397       if (writer != null && context != null) writer.close(context);
398       dir.getFileSystem(conf).delete(dir, true);
399     }
400   }
401 
402   @Ignore("Goes zombie too frequently; needs work. See HBASE-14563") @Test
403   public void testJobConfiguration() throws Exception {
404     Configuration conf = new Configuration(this.util.getConfiguration());
405     conf.set(HConstants.TEMPORARY_FS_DIRECTORY_KEY, util.getDataTestDir("testJobConfiguration")
406         .toString());
407     Job job = new Job(conf);
408     job.setWorkingDirectory(util.getDataTestDir("testJobConfiguration"));
409     RegionLocator regionLocator = Mockito.mock(RegionLocator.class);
410     setupMockStartKeys(regionLocator);
411     setupMockTableName(regionLocator);
412     HFileOutputFormat2.configureIncrementalLoad(job, new HTableDescriptor(), regionLocator);
413     assertEquals(job.getNumReduceTasks(), 4);
414   }
415 
416   private byte [][] generateRandomStartKeys(int numKeys) {
417     Random random = new Random();
418     byte[][] ret = new byte[numKeys][];
419     // first region start key is always empty
420     ret[0] = HConstants.EMPTY_BYTE_ARRAY;
421     for (int i = 1; i < numKeys; i++) {
422       ret[i] =
423         PerformanceEvaluation.generateData(random, PerformanceEvaluation.DEFAULT_VALUE_LENGTH);
424     }
425     return ret;
426   }
427 
428   private byte[][] generateRandomSplitKeys(int numKeys) {
429     Random random = new Random();
430     byte[][] ret = new byte[numKeys][];
431     for (int i = 0; i < numKeys; i++) {
432       ret[i] =
433           PerformanceEvaluation.generateData(random, PerformanceEvaluation.DEFAULT_VALUE_LENGTH);
434     }
435     return ret;
436   }
437 
438   @Ignore("Goes zombie too frequently; needs work. See HBASE-14563") @Test
439   public void testMRIncrementalLoad() throws Exception {
440     LOG.info("\nStarting test testMRIncrementalLoad\n");
441     doIncrementalLoadTest(false, false);
442   }
443 
444   @Ignore("Goes zombie too frequently; needs work. See HBASE-14563") @Test
445   public void testMRIncrementalLoadWithSplit() throws Exception {
446     LOG.info("\nStarting test testMRIncrementalLoadWithSplit\n");
447     doIncrementalLoadTest(true, false);
448   }
449 
450   /**
451    * Test for HFileOutputFormat2.LOCALITY_SENSITIVE_CONF_KEY = true This test could only check the
452    * correctness of original logic if LOCALITY_SENSITIVE_CONF_KEY is set to true. Because
453    * MiniHBaseCluster always run with single hostname (and different ports), it's not possible to
454    * check the region locality by comparing region locations and DN hostnames. When MiniHBaseCluster
455    * supports explicit hostnames parameter (just like MiniDFSCluster does), we could test region
456    * locality features more easily.
457    */
458   @Ignore("Goes zombie too frequently; needs work. See HBASE-14563") @Test
459   public void testMRIncrementalLoadWithLocality() throws Exception {
460     LOG.info("\nStarting test testMRIncrementalLoadWithLocality\n");
461     doIncrementalLoadTest(false, true);
462     doIncrementalLoadTest(true, true);
463   }
464 
465   private void doIncrementalLoadTest(boolean shouldChangeRegions, boolean shouldKeepLocality)
466       throws Exception {
467     util = new HBaseTestingUtility();
468     Configuration conf = util.getConfiguration();
469     conf.setBoolean(HFileOutputFormat2.LOCALITY_SENSITIVE_CONF_KEY, shouldKeepLocality);
470     int hostCount = 1;
471     int regionNum = 5;
472     if (shouldKeepLocality) {
473       // We should change host count higher than hdfs replica count when MiniHBaseCluster supports
474       // explicit hostnames parameter just like MiniDFSCluster does.
475       hostCount = 3;
476       regionNum = 20;
477     }
478     byte[][] splitKeys = generateRandomSplitKeys(regionNum - 1);
479     String[] hostnames = new String[hostCount];
480     for (int i = 0; i < hostCount; ++i) {
481       hostnames[i] = "datanode_" + i;
482     }
483     util.setJobWithoutMRCluster();
484     util.startMiniCluster(1, hostCount, hostnames);
485 
486     HTable table = util.createTable(TABLE_NAME, FAMILIES, splitKeys);
487     Path testDir = util.getDataTestDirOnTestFS("testLocalMRIncrementalLoad");
488     try (RegionLocator r = table.getRegionLocator(); Admin admin = table.getConnection().getAdmin()) {
489       assertEquals("Should start with empty table", 0, util.countRows(table));
490       int numRegions = r.getStartKeys().length;
491       assertEquals("Should make " + regionNum + " regions", numRegions, regionNum);
492 
493       // Generate the bulk load files
494       runIncrementalPELoad(conf, table.getTableDescriptor(), table.getRegionLocator(), testDir);
495       // This doesn't write into the table, just makes files
496       assertEquals("HFOF should not touch actual table", 0, util.countRows(table));
497 
498       // Make sure that a directory was created for every CF
499       int dir = 0;
500       for (FileStatus f : testDir.getFileSystem(conf).listStatus(testDir)) {
501         for (byte[] family : FAMILIES) {
502           if (Bytes.toString(family).equals(f.getPath().getName())) {
503             ++dir;
504           }
505         }
506       }
507       assertEquals("Column family not found in FS.", FAMILIES.length, dir);
508 
509       // handle the split case
510       if (shouldChangeRegions) {
511         LOG.info("Changing regions in table");
512         admin.disableTable(table.getName());
513         util.waitUntilNoRegionsInTransition();
514 
515         util.deleteTable(table.getName());
516         byte[][] newSplitKeys = generateRandomSplitKeys(14);
517         table = util.createTable(TABLE_NAME, FAMILIES, newSplitKeys);
518 
519         while (table.getRegionLocator().getAllRegionLocations().size() != 15
520             || !admin.isTableAvailable(table.getName())) {
521           Thread.sleep(200);
522           LOG.info("Waiting for new region assignment to happen");
523         }
524       }
525 
526       // Perform the actual load
527       new LoadIncrementalHFiles(conf).doBulkLoad(testDir, table);
528 
529       // Ensure data shows up
530       int expectedRows = NMapInputFormat.getNumMapTasks(conf) * ROWSPERSPLIT;
531       assertEquals("LoadIncrementalHFiles should put expected data in table", expectedRows,
532         util.countRows(table));
533       Scan scan = new Scan();
534       ResultScanner results = table.getScanner(scan);
535       for (Result res : results) {
536         assertEquals(FAMILIES.length, res.rawCells().length);
537         Cell first = res.rawCells()[0];
538         for (Cell kv : res.rawCells()) {
539           assertTrue(CellUtil.matchingRow(first, kv));
540           assertTrue(Bytes.equals(CellUtil.cloneValue(first), CellUtil.cloneValue(kv)));
541         }
542       }
543       results.close();
544       String tableDigestBefore = util.checksumRows(table);
545 
546       // Check region locality
547       HDFSBlocksDistribution hbd = new HDFSBlocksDistribution();
548       for (HRegion region : util.getHBaseCluster().getRegions(TABLE_NAME)) {
549         hbd.add(region.getHDFSBlocksDistribution());
550       }
551       for (String hostname : hostnames) {
552         float locality = hbd.getBlockLocalityIndex(hostname);
553         LOG.info("locality of [" + hostname + "]: " + locality);
554         assertEquals(100, (int) (locality * 100));
555       }
556 
557       // Cause regions to reopen
558       admin.disableTable(TABLE_NAME);
559       while (!admin.isTableDisabled(TABLE_NAME)) {
560         Thread.sleep(200);
561         LOG.info("Waiting for table to disable");
562       }
563       admin.enableTable(TABLE_NAME);
564       util.waitTableAvailable(TABLE_NAME);
565       assertEquals("Data should remain after reopening of regions", tableDigestBefore,
566         util.checksumRows(table));
567     } finally {
568       testDir.getFileSystem(conf).delete(testDir, true);
569       util.deleteTable(TABLE_NAME);
570       util.shutdownMiniCluster();
571     }
572   }
573 
574   private void runIncrementalPELoad(Configuration conf, HTableDescriptor tableDescriptor,
575       RegionLocator regionLocator, Path outDir) throws IOException, UnsupportedEncodingException,
576       InterruptedException, ClassNotFoundException {
577     Job job = new Job(conf, "testLocalMRIncrementalLoad");
578     job.setWorkingDirectory(util.getDataTestDirOnTestFS("runIncrementalPELoad"));
579     job.getConfiguration().setStrings("io.serializations", conf.get("io.serializations"),
580         MutationSerialization.class.getName(), ResultSerialization.class.getName(),
581         KeyValueSerialization.class.getName());
582     setupRandomGeneratorMapper(job);
583     HFileOutputFormat2.configureIncrementalLoad(job, tableDescriptor, regionLocator);
584     FileOutputFormat.setOutputPath(job, outDir);
585 
586     assertFalse(util.getTestFileSystem().exists(outDir)) ;
587 
588     assertEquals(regionLocator.getAllRegionLocations().size(), job.getNumReduceTasks());
589 
590     assertTrue(job.waitForCompletion(true));
591   }
592 
593   /**
594    * Test for {@link HFileOutputFormat2#configureCompression(org.apache.hadoop.hbase.client.Table,
595    * Configuration)} and {@link HFileOutputFormat2#createFamilyCompressionMap
596    * (Configuration)}.
597    * Tests that the compression map is correctly serialized into
598    * and deserialized from configuration
599    *
600    * @throws IOException
601    */
602   @Ignore("Goes zombie too frequently; needs work. See HBASE-14563") @Test
603   public void testSerializeDeserializeFamilyCompressionMap() throws IOException {
604     for (int numCfs = 0; numCfs <= 3; numCfs++) {
605       Configuration conf = new Configuration(this.util.getConfiguration());
606       Map<String, Compression.Algorithm> familyToCompression =
607           getMockColumnFamiliesForCompression(numCfs);
608       Table table = Mockito.mock(HTable.class);
609       setupMockColumnFamiliesForCompression(table, familyToCompression);
610       HFileOutputFormat2.configureCompression(conf, table.getTableDescriptor());
611 
612       // read back family specific compression setting from the configuration
613       Map<byte[], Algorithm> retrievedFamilyToCompressionMap = HFileOutputFormat2
614           .createFamilyCompressionMap(conf);
615 
616       // test that we have a value for all column families that matches with the
617       // used mock values
618       for (Entry<String, Algorithm> entry : familyToCompression.entrySet()) {
619         assertEquals("Compression configuration incorrect for column family:"
620             + entry.getKey(), entry.getValue(),
621             retrievedFamilyToCompressionMap.get(entry.getKey().getBytes()));
622       }
623     }
624   }
625 
626   private void setupMockColumnFamiliesForCompression(Table table,
627       Map<String, Compression.Algorithm> familyToCompression) throws IOException {
628     HTableDescriptor mockTableDescriptor = new HTableDescriptor(TABLE_NAME);
629     for (Entry<String, Compression.Algorithm> entry : familyToCompression.entrySet()) {
630       mockTableDescriptor.addFamily(new HColumnDescriptor(entry.getKey())
631           .setMaxVersions(1)
632           .setCompressionType(entry.getValue())
633           .setBlockCacheEnabled(false)
634           .setTimeToLive(0));
635     }
636     Mockito.doReturn(mockTableDescriptor).when(table).getTableDescriptor();
637   }
638 
639   /**
640    * @return a map from column family names to compression algorithms for
641    *         testing column family compression. Column family names have special characters
642    */
643   private Map<String, Compression.Algorithm>
644       getMockColumnFamiliesForCompression (int numCfs) {
645     Map<String, Compression.Algorithm> familyToCompression
646       = new HashMap<String, Compression.Algorithm>();
647     // use column family names having special characters
648     if (numCfs-- > 0) {
649       familyToCompression.put("Family1!@#!@#&", Compression.Algorithm.LZO);
650     }
651     if (numCfs-- > 0) {
652       familyToCompression.put("Family2=asdads&!AASD", Compression.Algorithm.SNAPPY);
653     }
654     if (numCfs-- > 0) {
655       familyToCompression.put("Family2=asdads&!AASD", Compression.Algorithm.GZ);
656     }
657     if (numCfs-- > 0) {
658       familyToCompression.put("Family3", Compression.Algorithm.NONE);
659     }
660     return familyToCompression;
661   }
662 
663 
664   /**
665    * Test for {@link HFileOutputFormat2#configureBloomType(org.apache.hadoop.hbase.client.Table,
666    * Configuration)} and {@link HFileOutputFormat2#createFamilyBloomTypeMap
667    * (Configuration)}.
668    * Tests that the compression map is correctly serialized into
669    * and deserialized from configuration
670    *
671    * @throws IOException
672    */
673   @Ignore("Goes zombie too frequently; needs work. See HBASE-14563") @Test
674   public void testSerializeDeserializeFamilyBloomTypeMap() throws IOException {
675     for (int numCfs = 0; numCfs <= 2; numCfs++) {
676       Configuration conf = new Configuration(this.util.getConfiguration());
677       Map<String, BloomType> familyToBloomType =
678           getMockColumnFamiliesForBloomType(numCfs);
679       Table table = Mockito.mock(HTable.class);
680       setupMockColumnFamiliesForBloomType(table,
681           familyToBloomType);
682       HFileOutputFormat2.configureBloomType(table.getTableDescriptor(), conf);
683 
684       // read back family specific data block encoding settings from the
685       // configuration
686       Map<byte[], BloomType> retrievedFamilyToBloomTypeMap =
687           HFileOutputFormat2
688               .createFamilyBloomTypeMap(conf);
689 
690       // test that we have a value for all column families that matches with the
691       // used mock values
692       for (Entry<String, BloomType> entry : familyToBloomType.entrySet()) {
693         assertEquals("BloomType configuration incorrect for column family:"
694             + entry.getKey(), entry.getValue(),
695             retrievedFamilyToBloomTypeMap.get(entry.getKey().getBytes()));
696       }
697     }
698   }
699 
700   private void setupMockColumnFamiliesForBloomType(Table table,
701       Map<String, BloomType> familyToDataBlockEncoding) throws IOException {
702     HTableDescriptor mockTableDescriptor = new HTableDescriptor(TABLE_NAME);
703     for (Entry<String, BloomType> entry : familyToDataBlockEncoding.entrySet()) {
704       mockTableDescriptor.addFamily(new HColumnDescriptor(entry.getKey())
705           .setMaxVersions(1)
706           .setBloomFilterType(entry.getValue())
707           .setBlockCacheEnabled(false)
708           .setTimeToLive(0));
709     }
710     Mockito.doReturn(mockTableDescriptor).when(table).getTableDescriptor();
711   }
712 
713   /**
714    * @return a map from column family names to compression algorithms for
715    *         testing column family compression. Column family names have special characters
716    */
717   private Map<String, BloomType>
718   getMockColumnFamiliesForBloomType (int numCfs) {
719     Map<String, BloomType> familyToBloomType =
720         new HashMap<String, BloomType>();
721     // use column family names having special characters
722     if (numCfs-- > 0) {
723       familyToBloomType.put("Family1!@#!@#&", BloomType.ROW);
724     }
725     if (numCfs-- > 0) {
726       familyToBloomType.put("Family2=asdads&!AASD",
727           BloomType.ROWCOL);
728     }
729     if (numCfs-- > 0) {
730       familyToBloomType.put("Family3", BloomType.NONE);
731     }
732     return familyToBloomType;
733   }
734 
735   /**
736    * Test for {@link HFileOutputFormat2#configureBlockSize(org.apache.hadoop.hbase.client.Table,
737    * Configuration)} and {@link HFileOutputFormat2#createFamilyBlockSizeMap
738    * (Configuration)}.
739    * Tests that the compression map is correctly serialized into
740    * and deserialized from configuration
741    *
742    * @throws IOException
743    */
744   @Ignore("Goes zombie too frequently; needs work. See HBASE-14563") @Test
745   public void testSerializeDeserializeFamilyBlockSizeMap() throws IOException {
746     for (int numCfs = 0; numCfs <= 3; numCfs++) {
747       Configuration conf = new Configuration(this.util.getConfiguration());
748       Map<String, Integer> familyToBlockSize =
749           getMockColumnFamiliesForBlockSize(numCfs);
750       Table table = Mockito.mock(HTable.class);
751       setupMockColumnFamiliesForBlockSize(table,
752           familyToBlockSize);
753       HFileOutputFormat2.configureBlockSize(table.getTableDescriptor(), conf);
754 
755       // read back family specific data block encoding settings from the
756       // configuration
757       Map<byte[], Integer> retrievedFamilyToBlockSizeMap =
758           HFileOutputFormat2
759               .createFamilyBlockSizeMap(conf);
760 
761       // test that we have a value for all column families that matches with the
762       // used mock values
763       for (Entry<String, Integer> entry : familyToBlockSize.entrySet()
764           ) {
765         assertEquals("BlockSize configuration incorrect for column family:"
766             + entry.getKey(), entry.getValue(),
767             retrievedFamilyToBlockSizeMap.get(entry.getKey().getBytes()));
768       }
769     }
770   }
771 
772   private void setupMockColumnFamiliesForBlockSize(Table table,
773       Map<String, Integer> familyToDataBlockEncoding) throws IOException {
774     HTableDescriptor mockTableDescriptor = new HTableDescriptor(TABLE_NAME);
775     for (Entry<String, Integer> entry : familyToDataBlockEncoding.entrySet()) {
776       mockTableDescriptor.addFamily(new HColumnDescriptor(entry.getKey())
777           .setMaxVersions(1)
778           .setBlocksize(entry.getValue())
779           .setBlockCacheEnabled(false)
780           .setTimeToLive(0));
781     }
782     Mockito.doReturn(mockTableDescriptor).when(table).getTableDescriptor();
783   }
784 
785   /**
786    * @return a map from column family names to compression algorithms for
787    *         testing column family compression. Column family names have special characters
788    */
789   private Map<String, Integer>
790   getMockColumnFamiliesForBlockSize (int numCfs) {
791     Map<String, Integer> familyToBlockSize =
792         new HashMap<String, Integer>();
793     // use column family names having special characters
794     if (numCfs-- > 0) {
795       familyToBlockSize.put("Family1!@#!@#&", 1234);
796     }
797     if (numCfs-- > 0) {
798       familyToBlockSize.put("Family2=asdads&!AASD",
799           Integer.MAX_VALUE);
800     }
801     if (numCfs-- > 0) {
802       familyToBlockSize.put("Family2=asdads&!AASD",
803           Integer.MAX_VALUE);
804     }
805     if (numCfs-- > 0) {
806       familyToBlockSize.put("Family3", 0);
807     }
808     return familyToBlockSize;
809   }
810 
811   /**
812    * Test for {@link HFileOutputFormat2#configureDataBlockEncoding(HTableDescriptor, Configuration)}
813    * and {@link HFileOutputFormat2#createFamilyDataBlockEncodingMap(Configuration)}.
814    * Tests that the compression map is correctly serialized into
815    * and deserialized from configuration
816    *
817    * @throws IOException
818    */
819   @Ignore("Goes zombie too frequently; needs work. See HBASE-14563") @Test
820   public void testSerializeDeserializeFamilyDataBlockEncodingMap() throws IOException {
821     for (int numCfs = 0; numCfs <= 3; numCfs++) {
822       Configuration conf = new Configuration(this.util.getConfiguration());
823       Map<String, DataBlockEncoding> familyToDataBlockEncoding =
824           getMockColumnFamiliesForDataBlockEncoding(numCfs);
825       Table table = Mockito.mock(HTable.class);
826       setupMockColumnFamiliesForDataBlockEncoding(table,
827           familyToDataBlockEncoding);
828       HTableDescriptor tableDescriptor = table.getTableDescriptor();
829       HFileOutputFormat2.configureDataBlockEncoding(tableDescriptor, conf);
830 
831       // read back family specific data block encoding settings from the
832       // configuration
833       Map<byte[], DataBlockEncoding> retrievedFamilyToDataBlockEncodingMap =
834           HFileOutputFormat2
835           .createFamilyDataBlockEncodingMap(conf);
836 
837       // test that we have a value for all column families that matches with the
838       // used mock values
839       for (Entry<String, DataBlockEncoding> entry : familyToDataBlockEncoding.entrySet()) {
840         assertEquals("DataBlockEncoding configuration incorrect for column family:"
841             + entry.getKey(), entry.getValue(),
842             retrievedFamilyToDataBlockEncodingMap.get(entry.getKey().getBytes()));
843       }
844     }
845   }
846 
847   private void setupMockColumnFamiliesForDataBlockEncoding(Table table,
848       Map<String, DataBlockEncoding> familyToDataBlockEncoding) throws IOException {
849     HTableDescriptor mockTableDescriptor = new HTableDescriptor(TABLE_NAME);
850     for (Entry<String, DataBlockEncoding> entry : familyToDataBlockEncoding.entrySet()) {
851       mockTableDescriptor.addFamily(new HColumnDescriptor(entry.getKey())
852           .setMaxVersions(1)
853           .setDataBlockEncoding(entry.getValue())
854           .setBlockCacheEnabled(false)
855           .setTimeToLive(0));
856     }
857     Mockito.doReturn(mockTableDescriptor).when(table).getTableDescriptor();
858   }
859 
860   /**
861    * @return a map from column family names to compression algorithms for
862    *         testing column family compression. Column family names have special characters
863    */
864   private Map<String, DataBlockEncoding>
865       getMockColumnFamiliesForDataBlockEncoding (int numCfs) {
866     Map<String, DataBlockEncoding> familyToDataBlockEncoding =
867         new HashMap<String, DataBlockEncoding>();
868     // use column family names having special characters
869     if (numCfs-- > 0) {
870       familyToDataBlockEncoding.put("Family1!@#!@#&", DataBlockEncoding.DIFF);
871     }
872     if (numCfs-- > 0) {
873       familyToDataBlockEncoding.put("Family2=asdads&!AASD",
874           DataBlockEncoding.FAST_DIFF);
875     }
876     if (numCfs-- > 0) {
877       familyToDataBlockEncoding.put("Family2=asdads&!AASD",
878           DataBlockEncoding.PREFIX);
879     }
880     if (numCfs-- > 0) {
881       familyToDataBlockEncoding.put("Family3", DataBlockEncoding.NONE);
882     }
883     return familyToDataBlockEncoding;
884   }
885 
886   private void setupMockStartKeys(RegionLocator table) throws IOException {
887     byte[][] mockKeys = new byte[][] {
888         HConstants.EMPTY_BYTE_ARRAY,
889         Bytes.toBytes("aaa"),
890         Bytes.toBytes("ggg"),
891         Bytes.toBytes("zzz")
892     };
893     Mockito.doReturn(mockKeys).when(table).getStartKeys();
894   }
895 
896   private void setupMockTableName(RegionLocator table) throws IOException {
897     TableName mockTableName = TableName.valueOf("mock_table");
898     Mockito.doReturn(mockTableName).when(table).getName();
899   }
900 
901   /**
902    * Test that {@link HFileOutputFormat2} RecordWriter uses compression and
903    * bloom filter settings from the column family descriptor
904    */
905   @Ignore("Goes zombie too frequently; needs work. See HBASE-14563") @Test
906   public void testColumnFamilySettings() throws Exception {
907     Configuration conf = new Configuration(this.util.getConfiguration());
908     RecordWriter<ImmutableBytesWritable, Cell> writer = null;
909     TaskAttemptContext context = null;
910     Path dir = util.getDataTestDir("testColumnFamilySettings");
911 
912     // Setup table descriptor
913     Table table = Mockito.mock(Table.class);
914     RegionLocator regionLocator = Mockito.mock(RegionLocator.class);
915     HTableDescriptor htd = new HTableDescriptor(TABLE_NAME);
916     Mockito.doReturn(htd).when(table).getTableDescriptor();
917     for (HColumnDescriptor hcd: HBaseTestingUtility.generateColumnDescriptors()) {
918       htd.addFamily(hcd);
919     }
920 
921     // set up the table to return some mock keys
922     setupMockStartKeys(regionLocator);
923 
924     try {
925       // partial map red setup to get an operational writer for testing
926       // We turn off the sequence file compression, because DefaultCodec
927       // pollutes the GZip codec pool with an incompatible compressor.
928       conf.set("io.seqfile.compression.type", "NONE");
929       conf.set("hbase.fs.tmp.dir", dir.toString());
930       // turn locality off to eliminate getRegionLocation fail-and-retry time when writing kvs
931       conf.setBoolean(HFileOutputFormat2.LOCALITY_SENSITIVE_CONF_KEY, false);
932       Job job = new Job(conf, "testLocalMRIncrementalLoad");
933       job.setWorkingDirectory(util.getDataTestDirOnTestFS("testColumnFamilySettings"));
934       setupRandomGeneratorMapper(job);
935       HFileOutputFormat2.configureIncrementalLoad(job, table.getTableDescriptor(), regionLocator);
936       FileOutputFormat.setOutputPath(job, dir);
937       context = createTestTaskAttemptContext(job);
938       HFileOutputFormat2 hof = new HFileOutputFormat2();
939       writer = hof.getRecordWriter(context);
940 
941       // write out random rows
942       writeRandomKeyValues(writer, context, htd.getFamiliesKeys(), ROWSPERSPLIT);
943       writer.close(context);
944 
945       // Make sure that a directory was created for every CF
946       FileSystem fs = dir.getFileSystem(conf);
947 
948       // commit so that the filesystem has one directory per column family
949       hof.getOutputCommitter(context).commitTask(context);
950       hof.getOutputCommitter(context).commitJob(context);
951       FileStatus[] families = FSUtils.listStatus(fs, dir, new FSUtils.FamilyDirFilter(fs));
952       assertEquals(htd.getFamilies().size(), families.length);
953       for (FileStatus f : families) {
954         String familyStr = f.getPath().getName();
955         HColumnDescriptor hcd = htd.getFamily(Bytes.toBytes(familyStr));
956         // verify that the compression on this file matches the configured
957         // compression
958         Path dataFilePath = fs.listStatus(f.getPath())[0].getPath();
959         Reader reader = HFile.createReader(fs, dataFilePath, new CacheConfig(conf), conf);
960         Map<byte[], byte[]> fileInfo = reader.loadFileInfo();
961 
962         byte[] bloomFilter = fileInfo.get(StoreFile.BLOOM_FILTER_TYPE_KEY);
963         if (bloomFilter == null) bloomFilter = Bytes.toBytes("NONE");
964         assertEquals("Incorrect bloom filter used for column family " + familyStr +
965           "(reader: " + reader + ")",
966           hcd.getBloomFilterType(), BloomType.valueOf(Bytes.toString(bloomFilter)));
967         assertEquals("Incorrect compression used for column family " + familyStr +
968           "(reader: " + reader + ")", hcd.getCompression(), reader.getFileContext().getCompression());
969       }
970     } finally {
971       dir.getFileSystem(conf).delete(dir, true);
972     }
973   }
974 
975   /**
976    * Write random values to the writer assuming a table created using
977    * {@link #FAMILIES} as column family descriptors
978    */
979   private void writeRandomKeyValues(RecordWriter<ImmutableBytesWritable, Cell> writer,
980       TaskAttemptContext context, Set<byte[]> families, int numRows)
981       throws IOException, InterruptedException {
982     byte keyBytes[] = new byte[Bytes.SIZEOF_INT];
983     int valLength = 10;
984     byte valBytes[] = new byte[valLength];
985 
986     int taskId = context.getTaskAttemptID().getTaskID().getId();
987     assert taskId < Byte.MAX_VALUE : "Unit tests dont support > 127 tasks!";
988     final byte [] qualifier = Bytes.toBytes("data");
989     Random random = new Random();
990     for (int i = 0; i < numRows; i++) {
991 
992       Bytes.putInt(keyBytes, 0, i);
993       random.nextBytes(valBytes);
994       ImmutableBytesWritable key = new ImmutableBytesWritable(keyBytes);
995 
996       for (byte[] family : families) {
997         Cell kv = new KeyValue(keyBytes, family, qualifier, valBytes);
998         writer.write(key, kv);
999       }
1000     }
1001   }
1002 
1003   /**
1004    * This test is to test the scenario happened in HBASE-6901.
1005    * All files are bulk loaded and excluded from minor compaction.
1006    * Without the fix of HBASE-6901, an ArrayIndexOutOfBoundsException
1007    * will be thrown.
1008    */
1009   @Ignore ("Flakey: See HBASE-9051") @Test
1010   public void testExcludeAllFromMinorCompaction() throws Exception {
1011     Configuration conf = util.getConfiguration();
1012     conf.setInt("hbase.hstore.compaction.min", 2);
1013     generateRandomStartKeys(5);
1014     util.setJobWithoutMRCluster();
1015     util.startMiniCluster();
1016     try (Connection conn = ConnectionFactory.createConnection();
1017         Admin admin = conn.getAdmin()) {
1018       final FileSystem fs = util.getDFSCluster().getFileSystem();
1019       HTable table = util.createTable(TABLE_NAME, FAMILIES);
1020       assertEquals("Should start with empty table", 0, util.countRows(table));
1021 
1022       // deep inspection: get the StoreFile dir
1023       final Path storePath = new Path(
1024         FSUtils.getTableDir(FSUtils.getRootDir(conf), TABLE_NAME),
1025           new Path(admin.getTableRegions(TABLE_NAME).get(0).getEncodedName(),
1026             Bytes.toString(FAMILIES[0])));
1027       assertEquals(0, fs.listStatus(storePath).length);
1028 
1029       // Generate two bulk load files
1030       conf.setBoolean("hbase.mapreduce.hfileoutputformat.compaction.exclude",
1031           true);
1032 
1033       for (int i = 0; i < 2; i++) {
1034         Path testDir = util.getDataTestDirOnTestFS("testExcludeAllFromMinorCompaction_" + i);
1035         runIncrementalPELoad(conf, table.getTableDescriptor(), conn.getRegionLocator(TABLE_NAME),
1036             testDir);
1037         // Perform the actual load
1038         new LoadIncrementalHFiles(conf).doBulkLoad(testDir, table);
1039       }
1040 
1041       // Ensure data shows up
1042       int expectedRows = 2 * NMapInputFormat.getNumMapTasks(conf) * ROWSPERSPLIT;
1043       assertEquals("LoadIncrementalHFiles should put expected data in table",
1044           expectedRows, util.countRows(table));
1045 
1046       // should have a second StoreFile now
1047       assertEquals(2, fs.listStatus(storePath).length);
1048 
1049       // minor compactions shouldn't get rid of the file
1050       admin.compact(TABLE_NAME);
1051       try {
1052         quickPoll(new Callable<Boolean>() {
1053           @Override
1054           public Boolean call() throws Exception {
1055             List<HRegion> regions = util.getMiniHBaseCluster().getRegions(TABLE_NAME);
1056             for (HRegion region : regions) {
1057               for (Store store : region.getStores()) {
1058                 store.closeAndArchiveCompactedFiles();
1059               }
1060             }
1061             return fs.listStatus(storePath).length == 1;
1062           }
1063         }, 5000);
1064         throw new IOException("SF# = " + fs.listStatus(storePath).length);
1065       } catch (AssertionError ae) {
1066         // this is expected behavior
1067       }
1068 
1069       // a major compaction should work though
1070       admin.majorCompact(TABLE_NAME);
1071       quickPoll(new Callable<Boolean>() {
1072         @Override
1073         public Boolean call() throws Exception {
1074           List<HRegion> regions = util.getMiniHBaseCluster().getRegions(TABLE_NAME);
1075           for (HRegion region : regions) {
1076             for (Store store : region.getStores()) {
1077               store.closeAndArchiveCompactedFiles();
1078             }
1079           }
1080           return fs.listStatus(storePath).length == 1;
1081         }
1082       }, 5000);
1083 
1084     } finally {
1085       util.shutdownMiniCluster();
1086     }
1087   }
1088 
1089   @Ignore("Goes zombie too frequently; needs work. See HBASE-14563") @Test
1090   public void testExcludeMinorCompaction() throws Exception {
1091     Configuration conf = util.getConfiguration();
1092     conf.setInt("hbase.hstore.compaction.min", 2);
1093     generateRandomStartKeys(5);
1094     util.setJobWithoutMRCluster();
1095     util.startMiniCluster();
1096     try (Connection conn = ConnectionFactory.createConnection(conf);
1097         Admin admin = conn.getAdmin()){
1098       Path testDir = util.getDataTestDirOnTestFS("testExcludeMinorCompaction");
1099       final FileSystem fs = util.getDFSCluster().getFileSystem();
1100       Table table = util.createTable(TABLE_NAME, FAMILIES);
1101       assertEquals("Should start with empty table", 0, util.countRows(table));
1102 
1103       // deep inspection: get the StoreFile dir
1104       final Path storePath = new Path(
1105         FSUtils.getTableDir(FSUtils.getRootDir(conf), TABLE_NAME),
1106           new Path(admin.getTableRegions(TABLE_NAME).get(0).getEncodedName(),
1107             Bytes.toString(FAMILIES[0])));
1108       assertEquals(0, fs.listStatus(storePath).length);
1109 
1110       // put some data in it and flush to create a storefile
1111       Put p = new Put(Bytes.toBytes("test"));
1112       p.add(FAMILIES[0], Bytes.toBytes("1"), Bytes.toBytes("1"));
1113       table.put(p);
1114       admin.flush(TABLE_NAME);
1115       assertEquals(1, util.countRows(table));
1116       quickPoll(new Callable<Boolean>() {
1117         @Override
1118         public Boolean call() throws Exception {
1119           return fs.listStatus(storePath).length == 1;
1120         }
1121       }, 5000);
1122 
1123       // Generate a bulk load file with more rows
1124       conf.setBoolean("hbase.mapreduce.hfileoutputformat.compaction.exclude",
1125           true);
1126 
1127       RegionLocator regionLocator = conn.getRegionLocator(TABLE_NAME);
1128       runIncrementalPELoad(conf, table.getTableDescriptor(), regionLocator, testDir);
1129 
1130       // Perform the actual load
1131       new LoadIncrementalHFiles(conf).doBulkLoad(testDir, admin, table, regionLocator);
1132 
1133       // Ensure data shows up
1134       int expectedRows = NMapInputFormat.getNumMapTasks(conf) * ROWSPERSPLIT;
1135       assertEquals("LoadIncrementalHFiles should put expected data in table",
1136           expectedRows + 1, util.countRows(table));
1137 
1138       // should have a second StoreFile now
1139       assertEquals(2, fs.listStatus(storePath).length);
1140 
1141       // minor compactions shouldn't get rid of the file
1142       admin.compact(TABLE_NAME);
1143       try {
1144         quickPoll(new Callable<Boolean>() {
1145           @Override
1146           public Boolean call() throws Exception {
1147             return fs.listStatus(storePath).length == 1;
1148           }
1149         }, 5000);
1150         throw new IOException("SF# = " + fs.listStatus(storePath).length);
1151       } catch (AssertionError ae) {
1152         // this is expected behavior
1153       }
1154 
1155       // a major compaction should work though
1156       admin.majorCompact(TABLE_NAME);
1157       quickPoll(new Callable<Boolean>() {
1158         @Override
1159         public Boolean call() throws Exception {
1160           return fs.listStatus(storePath).length == 1;
1161         }
1162       }, 5000);
1163 
1164     } finally {
1165       util.shutdownMiniCluster();
1166     }
1167   }
1168 
1169   private void quickPoll(Callable<Boolean> c, int waitMs) throws Exception {
1170     int sleepMs = 10;
1171     int retries = (int) Math.ceil(((double) waitMs) / sleepMs);
1172     while (retries-- > 0) {
1173       if (c.call().booleanValue()) {
1174         return;
1175       }
1176       Thread.sleep(sleepMs);
1177     }
1178     fail();
1179   }
1180 
1181   public static void main(String args[]) throws Exception {
1182     new TestHFileOutputFormat2().manualTest(args);
1183   }
1184 
1185   public void manualTest(String args[]) throws Exception {
1186     Configuration conf = HBaseConfiguration.create();
1187     util = new HBaseTestingUtility(conf);
1188     if ("newtable".equals(args[0])) {
1189       TableName tname = TableName.valueOf(args[1]);
1190       byte[][] splitKeys = generateRandomSplitKeys(4);
1191       try (HTable table = util.createTable(tname, FAMILIES, splitKeys)) {
1192       }
1193     } else if ("incremental".equals(args[0])) {
1194       TableName tname = TableName.valueOf(args[1]);
1195       try(Connection c = ConnectionFactory.createConnection(conf);
1196           Admin admin = c.getAdmin();
1197           RegionLocator regionLocator = c.getRegionLocator(tname)) {
1198         Path outDir = new Path("incremental-out");
1199         runIncrementalPELoad(conf, admin.getTableDescriptor(tname), regionLocator, outDir);
1200       }
1201     } else {
1202       throw new RuntimeException(
1203           "usage: TestHFileOutputFormat2 newtable | incremental");
1204     }
1205   }
1206 
1207 }
1208