org.apache.hadoop.hbase.regionserver.HStore Java Examples

@Override
protected List<KeyValueScanner> selectScannersFrom(HStore store,
    List<? extends KeyValueScanner> allScanners) {
  List<KeyValueScanner> scanners = super.selectScannersFrom(store, allScanners);
  List<KeyValueScanner> newScanners = new ArrayList<>(scanners.size());
  for (KeyValueScanner scanner : scanners) {
    newScanners.add(new DelegatingKeyValueScanner(scanner) {
      @Override
      public boolean reseek(Cell key) throws IOException {
        if (ON.get()) {
          REQ_COUNT.incrementAndGet();
          if (!THROW_ONCE.get() || REQ_COUNT.get() == 1) {
            if (IS_DO_NOT_RETRY.get()) {
              throw new DoNotRetryIOException("Injected exception");
            } else {
              throw new IOException("Injected exception");
            }
          }
        }
        return super.reseek(key);
      }
    });
  }
  return newScanners;
}
 

@Test
public void testPreStoreScannerOpen() throws IOException {

  RegionCoprocessorHost host = new RegionCoprocessorHost(region, rsServices, conf);
  Scan scan = new Scan();
  scan.setTimeRange(TimeRange.INITIAL_MIN_TIMESTAMP, TimeRange.INITIAL_MAX_TIMESTAMP);
  assertTrue("Scan is not for all time", scan.getTimeRange().isAllTime());
  //SimpleRegionObserver is set to update the ScanInfo parameters if the passed-in scan
  //is for all time. this lets us exercise both that the Scan is wired up properly in the coproc
  //and that we can customize the metadata

  ScanInfo oldScanInfo = getScanInfo();

  HStore store = mock(HStore.class);
  when(store.getScanInfo()).thenReturn(oldScanInfo);
  ScanInfo newScanInfo = host.preStoreScannerOpen(store, scan);

  verifyScanInfo(newScanInfo);
}
 

@Before
public void setUp() throws IOException {
  conf = HBaseConfiguration.create();
  region = mock(HRegion.class);
  HStore store = mock(HStore.class);
  when(store.getStorefilesCount()).thenReturn(1);
  when(region.getStores()).thenReturn(Collections.singletonList(store));
  when(region.getRegionInfo())
    .thenReturn(RegionInfoBuilder.newBuilder(TableName.valueOf("hbase:local")).build());
  flushCalled = new AtomicInteger(0);
  memstoreHeapSize = new AtomicLong(0);
  memstoreOffHeapSize = new AtomicLong(0);
  when(region.getMemStoreHeapSize()).thenAnswer(invocation -> memstoreHeapSize.get());
  when(region.getMemStoreOffHeapSize()).thenAnswer(invocation -> memstoreOffHeapSize.get());
  when(region.flush(anyBoolean())).thenAnswer(invocation -> {
    assertTrue(invocation.getArgument(0));
    memstoreHeapSize.set(0);
    memstoreOffHeapSize.set(0);
    flushCalled.incrementAndGet();
    return null;
  });
}
 

private HStore prepareData() throws IOException {
  Admin admin = TEST_UTIL.getAdmin();
  TableDescriptor desc = TableDescriptorBuilder.newBuilder(tableName)
      .setValue(DefaultStoreEngine.DEFAULT_COMPACTION_POLICY_CLASS_KEY,
        FIFOCompactionPolicy.class.getName())
      .setValue(HConstants.HBASE_REGION_SPLIT_POLICY_KEY,
        DisabledRegionSplitPolicy.class.getName())
      .setColumnFamily(ColumnFamilyDescriptorBuilder.newBuilder(family).setTimeToLive(1).build())
      .build();
  admin.createTable(desc);
  Table table = TEST_UTIL.getConnection().getTable(tableName);
  TimeOffsetEnvironmentEdge edge =
      (TimeOffsetEnvironmentEdge) EnvironmentEdgeManager.getDelegate();
  for (int i = 0; i < 10; i++) {
    for (int j = 0; j < 10; j++) {
      byte[] value = new byte[128 * 1024];
      ThreadLocalRandom.current().nextBytes(value);
      table.put(new Put(Bytes.toBytes(i * 10 + j)).addColumn(family, qualifier, value));
    }
    admin.flush(tableName);
    edge.increment(1001);
  }
  return getStoreWithName(tableName);
}
 

@Test
public void testPurgeExpiredFiles() throws Exception {
  HStore store = prepareData();
  assertEquals(10, store.getStorefilesCount());
  TEST_UTIL.getAdmin().majorCompact(tableName);
  TEST_UTIL.waitFor(30000, new ExplainingPredicate<Exception>() {

    @Override
    public boolean evaluate() throws Exception {
      return store.getStorefilesCount() == 1;
    }

    @Override
    public String explainFailure() throws Exception {
      return "The store file count " + store.getStorefilesCount() + " is still greater than 1";
    }
  });
}
 

@Test
public void testSanityCheckBlockingStoreFiles() throws IOException {
  error.expect(DoNotRetryIOException.class);
  error.expectMessage("Blocking file count 'hbase.hstore.blockingStoreFiles'");
  error.expectMessage("is below recommended minimum of 1000 for column family");
  TableName tableName = TableName.valueOf(getClass().getSimpleName() + "-BlockingStoreFiles");
  TableDescriptor desc = TableDescriptorBuilder.newBuilder(tableName)
      .setValue(DefaultStoreEngine.DEFAULT_COMPACTION_POLICY_CLASS_KEY,
        FIFOCompactionPolicy.class.getName())
      .setValue(HConstants.HBASE_REGION_SPLIT_POLICY_KEY,
        DisabledRegionSplitPolicy.class.getName())
      .setValue(HStore.BLOCKING_STOREFILES_KEY, "10")
      .setColumnFamily(ColumnFamilyDescriptorBuilder.newBuilder(family).setTimeToLive(1).build())
      .build();
  TEST_UTIL.getAdmin().createTable(desc);
}
 

private HStore prepareData() throws IOException {
  Admin admin = TEST_UTIL.getAdmin();
  if (admin.tableExists(tableName)) {
    admin.disableTable(tableName);
    admin.deleteTable(tableName);
  }
  Table table = TEST_UTIL.createTable(tableName, family);
  for (int i = 0; i < 10; i++) {
    for (int j = 0; j < 10; j++) {
      byte[] value = new byte[128 * 1024];
      ThreadLocalRandom.current().nextBytes(value);
      table.put(new Put(Bytes.toBytes(i * 10 + j)).addColumn(family, qualifier, value));
    }
    admin.flush(tableName);
  }
  return getStoreWithName(tableName);
}
 

private long testCompactionWithoutThroughputLimit() throws Exception {
  Configuration conf = TEST_UTIL.getConfiguration();
  conf.set(StoreEngine.STORE_ENGINE_CLASS_KEY, DefaultStoreEngine.class.getName());
  conf.setInt(CompactionConfiguration.HBASE_HSTORE_COMPACTION_MIN_KEY, 100);
  conf.setInt(CompactionConfiguration.HBASE_HSTORE_COMPACTION_MAX_KEY, 200);
  conf.setInt(HStore.BLOCKING_STOREFILES_KEY, 10000);
  conf.set(CompactionThroughputControllerFactory.HBASE_THROUGHPUT_CONTROLLER_KEY,
    NoLimitThroughputController.class.getName());
  TEST_UTIL.startMiniCluster(1);
  try {
    HStore store = prepareData();
    assertEquals(10, store.getStorefilesCount());
    long startTime = System.currentTimeMillis();
    TEST_UTIL.getAdmin().majorCompact(tableName);
    while (store.getStorefilesCount() != 1) {
      Thread.sleep(20);
    }
    return System.currentTimeMillis() - startTime;
  } finally {
    TEST_UTIL.shutdownMiniCluster();
  }
}
 

private void moveHFileToGlobalArchiveDir() throws IOException {
  FileSystem fs = region.getRegionFileSystem().getFileSystem();
  for (HStore store : region.getStores()) {
    store.closeAndArchiveCompactedFiles();
    Path storeArchiveDir = HFileArchiveUtil.getStoreArchivePath(conf, region.getRegionInfo(),
      store.getColumnFamilyDescriptor().getName());
    Path globalStoreArchiveDir = HFileArchiveUtil.getStoreArchivePathForArchivePath(
      globalArchivePath, region.getRegionInfo(), store.getColumnFamilyDescriptor().getName());
    try {
      MasterRegionUtils.moveFilesUnderDir(fs, storeArchiveDir, globalStoreArchiveDir,
        archivedHFileSuffix);
    } catch (IOException e) {
      LOG.warn("Failed to move archived hfiles from {} to global dir {}", storeArchiveDir,
        globalStoreArchiveDir, e);
    }
  }
}
 

/**
 * Do a small get/scan against one store. This is required because store
 * has no actual methods of querying itself, and relies on StoreScanner.
 */
public static List<Cell> getFromStoreFile(HStore store,
                                              Get get) throws IOException {
  Scan scan = new Scan(get);
  InternalScanner scanner = (InternalScanner) store.getScanner(scan,
      scan.getFamilyMap().get(store.getColumnFamilyDescriptor().getName()),
      // originally MultiVersionConcurrencyControl.resetThreadReadPoint() was called to set
      // readpoint 0.
      0);

  List<Cell> result = new ArrayList<>();
  scanner.next(result);
  if (!result.isEmpty()) {
    // verify that we are on the row we want:
    Cell kv = result.get(0);
    if (!CellUtil.matchingRows(kv, get.getRow())) {
      result.clear();
    }
  }
  scanner.close();
  return result;
}
 

public DefaultMobStoreCompactor(Configuration conf, HStore store) {
  super(conf, store);
  // The mob cells reside in the mob-enabled column family which is held by HMobStore.
  // During the compaction, the compactor reads the cells from the mob files and
  // probably creates new mob files. All of these operations are included in HMobStore,
  // so we need to cast the Store to HMobStore.
  if (!(store instanceof HMobStore)) {
    throw new IllegalArgumentException("The store " + store + " is not a HMobStore");
  }
  this.mobStore = (HMobStore) store;
  this.mobSizeThreshold = store.getColumnFamilyDescriptor().getMobThreshold();
  this.ioOptimizedMode = conf.get(MobConstants.MOB_COMPACTION_TYPE_KEY,
    MobConstants.DEFAULT_MOB_COMPACTION_TYPE).
      equals(MobConstants.OPTIMIZED_MOB_COMPACTION_TYPE);

}
 

@Override
public List<HStore> getStores() {
  List<HStore> list = new ArrayList<>(stores.size());
  /*
   * This is used to trigger the custom definition (faulty)
   * of refresh HFiles API.
   */
  try {
    if (this.store == null) {
      store = new HStoreWithFaultyRefreshHFilesAPI(this,
          ColumnFamilyDescriptorBuilder.of(FAMILY), this.conf);
    }
    list.add(store);
  } catch (IOException ioe) {
    LOG.info("Couldn't instantiate custom store implementation", ioe);
  }

  list.addAll(stores.values());
  return list;
}
 

/**
 * Writes Puts to the table and flushes few times.
 * @return {@link Pair} of (throughput, duration).
 */
private Pair<Double, Long> generateAndFlushData(Table table) throws IOException {
  // Internally, throughput is controlled after every cell write, so keep value size less for
  // better control.
  final int NUM_FLUSHES = 3, NUM_PUTS = 50, VALUE_SIZE = 200 * 1024;
  Random rand = new Random();
  long duration = 0;
  for (int i = 0; i < NUM_FLUSHES; i++) {
    // Write about 10M (10 times of throughput rate) per iteration.
    for (int j = 0; j < NUM_PUTS; j++) {
      byte[] value = new byte[VALUE_SIZE];
      rand.nextBytes(value);
      table.put(new Put(Bytes.toBytes(i * 10 + j)).addColumn(family, qualifier, value));
    }
    long startTime = System.nanoTime();
    hbtu.getAdmin().flush(tableName);
    duration += System.nanoTime() - startTime;
  }
  HStore store = getStoreWithName(tableName);
  assertEquals(NUM_FLUSHES, store.getStorefilesCount());
  double throughput = (double)store.getStorefilesSize()
      / TimeUnit.NANOSECONDS.toSeconds(duration);
  return new Pair<>(throughput, duration);
}
 

private void loadFlushAndCompact(HRegion region, byte[] family) throws IOException {
  // create two hfiles in the region
  createHFileInRegion(region, family);
  createHFileInRegion(region, family);

  HStore s = region.getStore(family);
  int count = s.getStorefilesCount();
  assertTrue("Don't have the expected store files, wanted >= 2 store files, but was:" + count,
    count >= 2);

  // compact the two files into one file to get files in the archive
  LOG.debug("Compacting stores");
  region.compact(true);
}
 

@Test(timeout = 120000)
public void testCompactNonPhoenixTable() throws Exception {
    if (localIndex || tableDDLOptions.contains("TRANSACTIONAL=true")) return;

    try (Connection conn = getConnection()) {
        // create a vanilla HBase table (non-Phoenix)
        String randomTable = generateUniqueName();
        TableName hbaseTN = TableName.valueOf(randomTable);
        byte[] famBytes = Bytes.toBytes("fam");
        Table hTable = getUtility().createTable(hbaseTN, famBytes);
        TestUtil.addCoprocessor(conn, randomTable, UngroupedAggregateRegionObserver.class);
        Put put = new Put(Bytes.toBytes("row"));
        byte[] value = new byte[1];
        Bytes.random(value);
        put.addColumn(famBytes, Bytes.toBytes("colQ"), value);
        hTable.put(put);

        // major compaction shouldn't cause a timeout or RS abort
        List<HRegion> regions = getUtility().getHBaseCluster().getRegions(hbaseTN);
        HRegion hRegion = regions.get(0);
        hRegion.flush(true);
        HStore store = hRegion.getStore(famBytes);
        store.triggerMajorCompaction();
        store.compactRecentForTestingAssumingDefaultPolicy(1);

        // we should be able to compact syscat itself as well
        regions =
                getUtility().getHBaseCluster().getRegions(
                        TableName.valueOf(PhoenixDatabaseMetaData.SYSTEM_CATALOG_NAME));
        hRegion = regions.get(0);
        hRegion.flush(true);
        store = hRegion.getStore(QueryConstants.DEFAULT_COLUMN_FAMILY_BYTES);
        store.triggerMajorCompaction();
        store.compactRecentForTestingAssumingDefaultPolicy(1);
    }
}
 

@Test
public void test() throws Exception {
  // sleep every 10 loops to give memstore compaction enough time to finish before reaching the
  // flush size.
  doIncrement(10);
  assertSum();
  HStore store = UTIL.getHBaseCluster().findRegionsForTable(NAME).get(0).getStore(FAMILY);
  // should have no store files created as we have done aggregating all in memory
  assertEquals(0, store.getStorefilesCount());
}
 

private HStore getStoreWithName(TableName tableName) {
  MiniHBaseCluster cluster = TEST_UTIL.getMiniHBaseCluster();
  List<JVMClusterUtil.RegionServerThread> rsts = cluster.getRegionServerThreads();
  for (int i = 0; i < cluster.getRegionServerThreads().size(); i++) {
    HRegionServer hrs = rsts.get(i).getRegionServer();
    for (Region region : hrs.getRegions(tableName)) {
      return ((HRegion) region).getStores().iterator().next();
    }
  }
  return null;
}
 

private TableDescriptorBuilder.ModifyableTableDescriptor createHtd(boolean isStripe)
    throws Exception {
  TableDescriptorBuilder.ModifyableTableDescriptor tableDescriptor =
    new TableDescriptorBuilder.ModifyableTableDescriptor(TABLE_NAME);
  ColumnFamilyDescriptor familyDescriptor =
    new ColumnFamilyDescriptorBuilder.ModifyableColumnFamilyDescriptor(COLUMN_FAMILY);
  tableDescriptor.setColumnFamily(familyDescriptor);
  String noSplitsPolicy = DisabledRegionSplitPolicy.class.getName();
  tableDescriptor.setValue(HConstants.HBASE_REGION_SPLIT_POLICY_KEY, noSplitsPolicy);
  if (isStripe) {
    tableDescriptor.setValue(StoreEngine.STORE_ENGINE_CLASS_KEY,
      StripeStoreEngine.class.getName());
    if (initialStripeCount != null) {
      tableDescriptor.setValue(
          StripeStoreConfig.INITIAL_STRIPE_COUNT_KEY, initialStripeCount.toString());
      tableDescriptor.setValue(
          HStore.BLOCKING_STOREFILES_KEY, Long.toString(10 * initialStripeCount));
    } else {
      tableDescriptor.setValue(HStore.BLOCKING_STOREFILES_KEY, "500");
    }
    if (splitSize != null) {
      tableDescriptor.setValue(StripeStoreConfig.SIZE_TO_SPLIT_KEY, splitSize.toString());
    }
    if (splitParts != null) {
      tableDescriptor.setValue(StripeStoreConfig.SPLIT_PARTS_KEY, splitParts.toString());
    }
  } else {
    tableDescriptor.setValue(HStore.BLOCKING_STOREFILES_KEY, "10"); // default
  }
  return tableDescriptor;
}
 

private HStore getStoreWithName(TableName tableName) {
  MiniHBaseCluster cluster = hbtu.getMiniHBaseCluster();
  List<JVMClusterUtil.RegionServerThread> rsts = cluster.getRegionServerThreads();
  for (int i = 0; i < cluster.getRegionServerThreads().size(); i++) {
    HRegionServer hrs = rsts.get(i).getRegionServer();
    for (Region region : hrs.getRegions(tableName)) {
      return ((HRegion) region).getStores().iterator().next();
    }
  }
  return null;
}
 

private long testCompactionWithThroughputLimit() throws Exception {
  long throughputLimit = 1024L * 1024;
  Configuration conf = TEST_UTIL.getConfiguration();
  conf.set(StoreEngine.STORE_ENGINE_CLASS_KEY, DefaultStoreEngine.class.getName());
  conf.setInt(CompactionConfiguration.HBASE_HSTORE_COMPACTION_MIN_KEY, 100);
  conf.setInt(CompactionConfiguration.HBASE_HSTORE_COMPACTION_MAX_KEY, 200);
  conf.setInt(HStore.BLOCKING_STOREFILES_KEY, 10000);
  conf.setLong(
    PressureAwareCompactionThroughputController
      .HBASE_HSTORE_COMPACTION_MAX_THROUGHPUT_HIGHER_BOUND,
    throughputLimit);
  conf.setLong(
    PressureAwareCompactionThroughputController
      .HBASE_HSTORE_COMPACTION_MAX_THROUGHPUT_LOWER_BOUND,
    throughputLimit);
  conf.set(CompactionThroughputControllerFactory.HBASE_THROUGHPUT_CONTROLLER_KEY,
    PressureAwareCompactionThroughputController.class.getName());
  TEST_UTIL.startMiniCluster(1);
  try {
    HStore store = prepareData();
    assertEquals(10, store.getStorefilesCount());
    long startTime = System.currentTimeMillis();
    TEST_UTIL.getAdmin().majorCompact(tableName);
    while (store.getStorefilesCount() != 1) {
      Thread.sleep(20);
    }
    long duration = System.currentTimeMillis() - startTime;
    double throughput = (double) store.getStorefilesSize() / duration * 1000;
    // confirm that the speed limit work properly(not too fast, and also not too slow)
    // 20% is the max acceptable error rate.
    assertTrue(throughput < throughputLimit * 1.2);
    assertTrue(throughput > throughputLimit * 0.8);
    return System.currentTimeMillis() - startTime;
  } finally {
    TEST_UTIL.shutdownMiniCluster();
  }
}
 

@Override
protected void initTable() throws IOException {
  // Do the same as the LoadTestTool does, but with different table configuration.
  TableDescriptorBuilder.ModifyableTableDescriptor tableDescriptor =
    new TableDescriptorBuilder.ModifyableTableDescriptor(getTablename());
  tableDescriptor.setValue(StoreEngine.STORE_ENGINE_CLASS_KEY,
    StripeStoreEngine.class.getName());
  tableDescriptor.setValue(HStore.BLOCKING_STOREFILES_KEY, "100");
  ColumnFamilyDescriptorBuilder.ModifyableColumnFamilyDescriptor familyDescriptor =
    new ColumnFamilyDescriptorBuilder.ModifyableColumnFamilyDescriptor(
      HFileTestUtil.DEFAULT_COLUMN_FAMILY);
  HBaseTestingUtility.createPreSplitLoadTestTable(util.getConfiguration(),
    tableDescriptor, familyDescriptor);
}
 

@Test
public void testPreFlushScannerOpen() throws IOException {
  RegionCoprocessorHost host = new RegionCoprocessorHost(region, rsServices, conf);
  ScanInfo oldScanInfo = getScanInfo();
  HStore store = mock(HStore.class);
  when(store.getScanInfo()).thenReturn(oldScanInfo);
  ScanInfo newScanInfo = host.preFlushScannerOpen(store, mock(FlushLifeCycleTracker.class));
  verifyScanInfo(newScanInfo);
}
 

@Test
public void testPreCompactScannerOpen() throws IOException {
  RegionCoprocessorHost host = new RegionCoprocessorHost(region, rsServices, conf);
  ScanInfo oldScanInfo = getScanInfo();
  HStore store = mock(HStore.class);
  when(store.getScanInfo()).thenReturn(oldScanInfo);
  ScanInfo newScanInfo = host.preCompactScannerOpen(store, ScanType.COMPACT_DROP_DELETES,
    mock(CompactionLifeCycleTracker.class), mock(CompactionRequest.class), mock(User.class));
  verifyScanInfo(newScanInfo);
}
 

private HStore getStoreWithName(TableName tableName) {
  MiniHBaseCluster cluster = TEST_UTIL.getMiniHBaseCluster();
  List<JVMClusterUtil.RegionServerThread> rsts = cluster.getRegionServerThreads();
  for (int i = 0; i < cluster.getRegionServerThreads().size(); i++) {
    HRegionServer hrs = rsts.get(i).getRegionServer();
    for (HRegion region : hrs.getRegions(tableName)) {
      return region.getStores().iterator().next();
    }
  }
  return null;
}
 

private BlockCache setCacheProperties(HRegion region) {
  Iterator<HStore> strItr = region.getStores().iterator();
  BlockCache cache = null;
  while (strItr.hasNext()) {
    HStore store = strItr.next();
    CacheConfig cacheConf = store.getCacheConfig();
    cacheConf.setCacheDataOnWrite(true);
    cacheConf.setEvictOnClose(true);
    // Use the last one
    cache = cacheConf.getBlockCache().get();
  }
  return cache;
}
 

private Path createReferences(final MasterServices services, final TableDescriptor td,
  final RegionInfo parent, final RegionInfo daughter, final byte[] midkey, final boolean top)
  throws IOException {
  Path rootdir = services.getMasterFileSystem().getRootDir();
  Path tabledir = CommonFSUtils.getTableDir(rootdir, parent.getTable());
  Path storedir = HStore.getStoreHomedir(tabledir, daughter, td.getColumnFamilies()[0].getName());
  Reference ref =
    top ? Reference.createTopReference(midkey) : Reference.createBottomReference(midkey);
  long now = System.currentTimeMillis();
  // Reference name has this format: StoreFile#REF_NAME_PARSER
  Path p = new Path(storedir, Long.toString(now) + "." + parent.getEncodedName());
  FileSystem fs = services.getMasterFileSystem().getFileSystem();
  ref.write(fs, p);
  return p;
}
 

private void waitForStoreFileCount(HStore store, int count, int timeout)
    throws InterruptedException {
  long start = System.currentTimeMillis();
  while (start + timeout > System.currentTimeMillis() && store.getStorefilesCount() != count) {
    Thread.sleep(100);
  }
  System.out.println("start=" + start + ", now=" + System.currentTimeMillis() + ", cur=" +
      store.getStorefilesCount());
  assertEquals(count, store.getStorefilesCount());
}
 

/**
 * Test clearing a split parent.
 */
@Test
public void testCleanParent() throws IOException, InterruptedException {
  TableDescriptor td = createTableDescriptorForCurrentMethod();
  // Create regions.
  RegionInfo parent =
    createRegionInfo(td.getTableName(), Bytes.toBytes("aaa"), Bytes.toBytes("eee"));
  RegionInfo splita =
    createRegionInfo(td.getTableName(), Bytes.toBytes("aaa"), Bytes.toBytes("ccc"));
  RegionInfo splitb =
    createRegionInfo(td.getTableName(), Bytes.toBytes("ccc"), Bytes.toBytes("eee"));
  // Test that when both daughter regions are in place, that we do not remove the parent.
  Result r = createResult(parent, splita, splitb);
  // Add a reference under splitA directory so we don't clear out the parent.
  Path rootdir = this.masterServices.getMasterFileSystem().getRootDir();
  Path tabledir = CommonFSUtils.getTableDir(rootdir, td.getTableName());
  Path parentdir = new Path(tabledir, parent.getEncodedName());
  Path storedir = HStore.getStoreHomedir(tabledir, splita, td.getColumnFamilies()[0].getName());
  Reference ref = Reference.createTopReference(Bytes.toBytes("ccc"));
  long now = System.currentTimeMillis();
  // Reference name has this format: StoreFile#REF_NAME_PARSER
  Path p = new Path(storedir, Long.toString(now) + "." + parent.getEncodedName());
  FileSystem fs = this.masterServices.getMasterFileSystem().getFileSystem();
  Path path = ref.write(fs, p);
  assertTrue(fs.exists(path));
  LOG.info("Created reference " + path);
  // Add a parentdir for kicks so can check it gets removed by the catalogjanitor.
  fs.mkdirs(parentdir);
  assertFalse(this.janitor.cleanParent(parent, r));
  ProcedureTestingUtility.waitAllProcedures(masterServices.getMasterProcedureExecutor());
  assertTrue(fs.exists(parentdir));
  // Remove the reference file and try again.
  assertTrue(fs.delete(p, true));
  assertTrue(this.janitor.cleanParent(parent, r));
  // Parent cleanup is run async as a procedure. Make sure parentdir is removed.
  ProcedureTestingUtility.waitAllProcedures(masterServices.getMasterProcedureExecutor());
  assertTrue(!fs.exists(parentdir));
}
 

@Override
public boolean evaluate() throws Exception {
  for (HRegion region : cluster.getRegions(tn)) {
    for (HStore store : region.getStores()) {
      Collection<HStoreFile> files =
          store.getStoreEngine().getStoreFileManager().getCompactedfiles();
      if (null != files && !files.isEmpty()) {
        LOG.debug(region.getRegionInfo().getEncodedName() + " still has compacted files");
        return false;
      }
    }
  }
  return true;
}
 

/**
 * Do a small get/scan against one store. This is required because store
 * has no actual methods of querying itself, and relies on StoreScanner.
 */
public static List<Cell> getFromStoreFile(HStore store,
                                              byte [] row,
                                              NavigableSet<byte[]> columns
                                              ) throws IOException {
  Get get = new Get(row);
  Map<byte[], NavigableSet<byte[]>> s = get.getFamilyMap();
  s.put(store.getColumnFamilyDescriptor().getName(), columns);

  return getFromStoreFile(store,get);
}