Java Code Examples for org.apache.hadoop.hbase.regionserver.HRegion#initialize()

/**
 * Create a region with it's own WAL. Be sure to call
 * {@link HBaseTestingUtility#closeRegionAndWAL(HRegion)} to clean up all resources.
 */
public static HRegion createRegionAndWAL(final RegionInfo info, final Path rootDir,
    final Configuration conf, final TableDescriptor htd, BlockCache blockCache)
    throws IOException {
  HRegion region = createRegionAndWAL(info, rootDir, conf, htd, false);
  region.setBlockCache(blockCache);
  region.initialize();
  return region;
}
 

@Test
public void testDeleteFiltering() throws Exception {
  String tableName = "TestDeleteFiltering";
  byte[] familyBytes = Bytes.toBytes("f");
  byte[] columnBytes = Bytes.toBytes("c");
  HRegion region = createRegion(tableName, familyBytes, 0);
  try {
    region.initialize();
    TransactionStateCache cache = new TransactionStateCacheSupplier(conf).get();
    LOG.info("Coprocessor is using transaction state: " + waitForTransactionState(cache));

    byte[] row = Bytes.toBytes(1);
    for (int i = 4; i < V.length; i++) {
      Put p = new Put(row);
      p.addColumn(familyBytes, columnBytes, V[i], Bytes.toBytes(V[i]));
      region.put(p);
    }

    // delete from the third entry back
    // take that cell's timestamp + 1 to simulate a delete in a new tx
    long deleteTs = V[5] + 1;
    Delete d = new Delete(row, deleteTs);
    LOG.info("Issuing delete at timestamp " + deleteTs);
    // row deletes are not yet supported (TransactionAwareHTable normally handles this)
    d.addColumns(familyBytes, columnBytes);
    region.delete(d);

    List<Cell> results = Lists.newArrayList();

    // force a flush to clear the data
    // during flush, we should drop the deleted version, but not the others
    LOG.info("Flushing region " + region.getRegionInfo().getRegionNameAsString());
    region.flushcache(true, false, new FlushLifeCycleTracker() { });

    // now a normal scan should return row with versions at: V[8], V[6].
    // V[7] is invalid and V[5] and prior are deleted.
    Scan scan = new Scan();
    scan.setMaxVersions(10);
    RegionScanner regionScanner = region.getScanner(scan);
    // should be only one row
    assertFalse(regionScanner.next(results));
    assertKeyValueMatches(results, 1,
        new long[]{V[8], V[6], deleteTs},
        new byte[][]{Bytes.toBytes(V[8]), Bytes.toBytes(V[6]), new byte[0]});
  } finally {
    region.close();
  }
}
 

@Test
public void testDeleteFiltering() throws Exception {
  String tableName = "TestDeleteFiltering";
  byte[] familyBytes = Bytes.toBytes("f");
  byte[] columnBytes = Bytes.toBytes("c");
  HRegion region = createRegion(tableName, familyBytes, 0);
  try {
    region.initialize();
    TransactionStateCache cache = new TransactionStateCacheSupplier(conf).get();
    LOG.info("Coprocessor is using transaction state: " + waitForTransactionState(cache));

    byte[] row = Bytes.toBytes(1);
    for (int i = 4; i < V.length; i++) {
      Put p = new Put(row);
      p.add(familyBytes, columnBytes, V[i], Bytes.toBytes(V[i]));
      region.put(p);
    }

    // delete from the third entry back
    // take that cell's timestamp + 1 to simulate a delete in a new tx
    long deleteTs = V[5] + 1;
    Delete d = new Delete(row, deleteTs);
    LOG.info("Issuing delete at timestamp " + deleteTs);
    // row deletes are not yet supported (TransactionAwareHTable normally handles this)
    d.deleteColumns(familyBytes, columnBytes);
    region.delete(d);

    List<Cell> results = Lists.newArrayList();

    // force a flush to clear the data
    // during flush, we should drop the deleted version, but not the others
    LOG.info("Flushing region " + region.getRegionInfo().getRegionNameAsString());
    region.flushcache(true, false);

    // now a normal scan should return row with versions at: V[8], V[6].
    // V[7] is invalid and V[5] and prior are deleted.
    Scan scan = new Scan();
    scan.setMaxVersions(10);
    RegionScanner regionScanner = region.getScanner(scan);
    // should be only one row
    assertFalse(regionScanner.next(results));
    assertKeyValueMatches(results, 1,
        new long[]{V[8], V[6], deleteTs},
        new byte[][]{Bytes.toBytes(V[8]), Bytes.toBytes(V[6]), new byte[0]});
  } finally {
    region.close();
  }
}
 

@Test
public void testDataJanitorRegionScanner() throws Exception {
  String tableName = "TestRegionScanner";
  byte[] familyBytes = Bytes.toBytes("f");
  byte[] columnBytes = Bytes.toBytes("c");
  HRegion region = createRegion(tableName, familyBytes, TimeUnit.HOURS.toMillis(3));
  try {
    region.initialize();
    TransactionStateCache cache = new TransactionStateCacheSupplier(conf).get();
    LOG.info("Coprocessor is using transaction state: " + waitForTransactionState(cache));

    for (int i = 1; i <= 8; i++) {
      for (int k = 1; k <= i; k++) {
        Put p = new Put(Bytes.toBytes(i));
        p.add(familyBytes, columnBytes, V[k], Bytes.toBytes(V[k]));
        region.put(p);
      }
    }

    List<Cell> results = Lists.newArrayList();

    // force a flush to clear the data
    // during flush, the coprocessor should drop all KeyValues with timestamps in the invalid set
    LOG.info("Flushing region " + region.getRegionInfo().getRegionNameAsString());
    Region.FlushResult flushResult = region.flushcache(true, false);
    Assert.assertTrue("Unexpected flush result: " + flushResult, flushResult.isFlushSucceeded());
    
    // now a normal scan should only return the valid rows
    // do not use a filter here to test that cleanup works on flush
    Scan scan = new Scan();
    scan.setMaxVersions(10);
    RegionScanner regionScanner = region.getScanner(scan);

    // first returned value should be "4" with version "4"
    results.clear();
    assertTrue(regionScanner.next(results));
    assertKeyValueMatches(results, 4, new long[]{V[4]});

    results.clear();
    assertTrue(regionScanner.next(results));
    assertKeyValueMatches(results, 5, new long[] {V[4]});

    results.clear();
    assertTrue(regionScanner.next(results));
    assertKeyValueMatches(results, 6, new long[]{V[6], V[4]});

    results.clear();
    assertTrue(regionScanner.next(results));
    assertKeyValueMatches(results, 7, new long[]{V[6], V[4]});

    results.clear();
    assertFalse(regionScanner.next(results));
    assertKeyValueMatches(results, 8, new long[] {V[8], V[6], V[4]});
  } finally {
    region.close();
  }
}
 

@Test
public void testPreExistingData() throws Exception {
  String tableName = "TestPreExistingData";
  byte[] familyBytes = Bytes.toBytes("f");
  long ttlMillis = TimeUnit.DAYS.toMillis(14);
  HRegion region = createRegion(tableName, familyBytes, ttlMillis);
  try {
    region.initialize();

    // timestamps for pre-existing, non-transactional data
    long now = txVisibilityState.getVisibilityUpperBound() / TxConstants.MAX_TX_PER_MS;
    long older = now - ttlMillis / 2;
    long newer = now - ttlMillis / 3;
    // timestamps for transactional data
    long nowTx = txVisibilityState.getVisibilityUpperBound();
    long olderTx = nowTx - (ttlMillis / 2) * TxConstants.MAX_TX_PER_MS;
    long newerTx = nowTx - (ttlMillis / 3) * TxConstants.MAX_TX_PER_MS;

    Map<byte[], Long> ttls = Maps.newTreeMap(Bytes.BYTES_COMPARATOR);
    ttls.put(familyBytes, ttlMillis);

    List<Cell> cells = new ArrayList<>();
    cells.add(new KeyValue(Bytes.toBytes("r1"), familyBytes, Bytes.toBytes("c1"), older, Bytes.toBytes("v11")));
    cells.add(new KeyValue(Bytes.toBytes("r1"), familyBytes, Bytes.toBytes("c2"), newer, Bytes.toBytes("v12")));
    cells.add(new KeyValue(Bytes.toBytes("r2"), familyBytes, Bytes.toBytes("c1"), older, Bytes.toBytes("v21")));
    cells.add(new KeyValue(Bytes.toBytes("r2"), familyBytes, Bytes.toBytes("c2"), newer, Bytes.toBytes("v22")));
    cells.add(new KeyValue(Bytes.toBytes("r3"), familyBytes, Bytes.toBytes("c1"), olderTx, Bytes.toBytes("v31")));
    cells.add(new KeyValue(Bytes.toBytes("r3"), familyBytes, Bytes.toBytes("c2"), newerTx, Bytes.toBytes("v32")));

    // Write non-transactional and transactional data
    for (Cell c : cells) {
      region.put(new Put(c.getRow()).add(c.getFamily(), c.getQualifier(), c.getTimestamp(), c.getValue()));
    }

    Scan rawScan = new Scan();
    rawScan.setMaxVersions();

    Transaction dummyTransaction = TxUtils.createDummyTransaction(txVisibilityState);
    Scan txScan = new Scan();
    txScan.setMaxVersions();
    txScan.setTimeRange(TxUtils.getOldestVisibleTimestamp(ttls, dummyTransaction, true),
                        TxUtils.getMaxVisibleTimestamp(dummyTransaction));
    txScan.setFilter(TransactionFilters.getVisibilityFilter(dummyTransaction, ttls, false, ScanType.USER_SCAN));

    // read all back with raw scanner
    scanAndAssert(region, cells, rawScan);

    // read all back with transaction filter
    scanAndAssert(region, cells, txScan);

    // force a flush to clear the memstore
    region.flushcache();
    scanAndAssert(region, cells, txScan);

    // force a major compaction to remove any expired cells
    region.compactStores(true);
    scanAndAssert(region, cells, txScan);

    // Reduce TTL, this should make cells with timestamps older and olderTx expire
    long newTtl = ttlMillis / 2 - 1;
    region = updateTtl(region, familyBytes, newTtl);
    ttls.put(familyBytes, newTtl);
    txScan.setTimeRange(TxUtils.getOldestVisibleTimestamp(ttls, dummyTransaction, true),
                        TxUtils.getMaxVisibleTimestamp(dummyTransaction));
    txScan.setFilter(TransactionFilters.getVisibilityFilter(dummyTransaction, ttls, false, ScanType.USER_SCAN));

    // Raw scan should still give all cells
    scanAndAssert(region, cells, rawScan);
    // However, tx scan should not return expired cells
    scanAndAssert(region, select(cells, 1, 3, 5), txScan);

    region.flushcache();
    scanAndAssert(region, cells, rawScan);

    // force a major compaction to remove any expired cells
    region.compactStores(true);
    // This time raw scan too should not return expired cells, as they would be dropped during major compaction
    scanAndAssert(region, select(cells, 1, 3, 5), rawScan);

    // Reduce TTL again to 1 ms, this should expire all cells
    newTtl = 1;
    region = updateTtl(region, familyBytes, newTtl);
    ttls.put(familyBytes, newTtl);
    txScan.setTimeRange(TxUtils.getOldestVisibleTimestamp(ttls, dummyTransaction, true),
                        TxUtils.getMaxVisibleTimestamp(dummyTransaction));
    txScan.setFilter(TransactionFilters.getVisibilityFilter(dummyTransaction, ttls, false, ScanType.USER_SCAN));

    // force a major compaction to remove expired cells
    region.compactStores(true);
    // This time raw scan should not return any cells, as all cells have expired.
    scanAndAssert(region, Collections.<Cell>emptyList(), rawScan);
  } finally {
    region.close();
  }
}
 

@Test
public void testPreExistingData() throws Exception {
  String tableName = "TestPreExistingData";
  byte[] familyBytes = Bytes.toBytes("f");
  long ttlMillis = TimeUnit.DAYS.toMillis(14);
  HRegion region = createRegion(tableName, familyBytes, ttlMillis);
  try {
    region.initialize();

    // timestamps for pre-existing, non-transactional data
    long now = txVisibilityState.getVisibilityUpperBound() / TxConstants.MAX_TX_PER_MS;
    long older = now - ttlMillis / 2;
    long newer = now - ttlMillis / 3;
    // timestamps for transactional data
    long nowTx = txVisibilityState.getVisibilityUpperBound();
    long olderTx = nowTx - (ttlMillis / 2) * TxConstants.MAX_TX_PER_MS;
    long newerTx = nowTx - (ttlMillis / 3) * TxConstants.MAX_TX_PER_MS;

    Map<byte[], Long> ttls = Maps.newTreeMap(Bytes.BYTES_COMPARATOR);
    ttls.put(familyBytes, ttlMillis);

    List<Cell> cells = new ArrayList<>();
    cells.add(new KeyValue(Bytes.toBytes("r1"), familyBytes, Bytes.toBytes("c1"), older, Bytes.toBytes("v11")));
    cells.add(new KeyValue(Bytes.toBytes("r1"), familyBytes, Bytes.toBytes("c2"), newer, Bytes.toBytes("v12")));
    cells.add(new KeyValue(Bytes.toBytes("r2"), familyBytes, Bytes.toBytes("c1"), older, Bytes.toBytes("v21")));
    cells.add(new KeyValue(Bytes.toBytes("r2"), familyBytes, Bytes.toBytes("c2"), newer, Bytes.toBytes("v22")));
    cells.add(new KeyValue(Bytes.toBytes("r3"), familyBytes, Bytes.toBytes("c1"), olderTx, Bytes.toBytes("v31")));
    cells.add(new KeyValue(Bytes.toBytes("r3"), familyBytes, Bytes.toBytes("c2"), newerTx, Bytes.toBytes("v32")));

    // Write non-transactional and transactional data
    for (Cell c : cells) {
      region.put(new Put(c.getRow()).add(c.getFamily(), c.getQualifier(), c.getTimestamp(), c.getValue()));
    }

    Scan rawScan = new Scan();
    rawScan.setMaxVersions();

    Transaction dummyTransaction = TxUtils.createDummyTransaction(txVisibilityState);
    Scan txScan = new Scan();
    txScan.setMaxVersions();
    txScan.setTimeRange(TxUtils.getOldestVisibleTimestamp(ttls, dummyTransaction, true),
                        TxUtils.getMaxVisibleTimestamp(dummyTransaction));
    txScan.setFilter(TransactionFilters.getVisibilityFilter(dummyTransaction, ttls, false, ScanType.USER_SCAN));

    // read all back with raw scanner
    scanAndAssert(region, cells, rawScan);

    // read all back with transaction filter
    scanAndAssert(region, cells, txScan);

    // force a flush to clear the memstore
    region.flushcache(true, false);
    scanAndAssert(region, cells, txScan);

    // force a major compaction to remove any expired cells
    region.compact(true);
    scanAndAssert(region, cells, txScan);

    // Reduce TTL, this should make cells with timestamps older and olderTx expire
    long newTtl = ttlMillis / 2 - 1;
    region = updateTtl(region, familyBytes, newTtl);
    ttls.put(familyBytes, newTtl);
    txScan.setTimeRange(TxUtils.getOldestVisibleTimestamp(ttls, dummyTransaction, true),
                        TxUtils.getMaxVisibleTimestamp(dummyTransaction));
    txScan.setFilter(TransactionFilters.getVisibilityFilter(dummyTransaction, ttls, false, ScanType.USER_SCAN));

    // Raw scan should still give all cells
    scanAndAssert(region, cells, rawScan);
    // However, tx scan should not return expired cells
    scanAndAssert(region, select(cells, 1, 3, 5), txScan);

    region.flushcache(true, false);
    scanAndAssert(region, cells, rawScan);

    // force a major compaction to remove any expired cells
    region.compact(true);
    // This time raw scan too should not return expired cells, as they would be dropped during major compaction
    scanAndAssert(region, select(cells, 1, 3, 5), rawScan);

    // Reduce TTL again to 1 ms, this should expire all cells
    newTtl = 1;
    region = updateTtl(region, familyBytes, newTtl);
    ttls.put(familyBytes, newTtl);
    txScan.setTimeRange(TxUtils.getOldestVisibleTimestamp(ttls, dummyTransaction, true),
                        TxUtils.getMaxVisibleTimestamp(dummyTransaction));
    txScan.setFilter(TransactionFilters.getVisibilityFilter(dummyTransaction, ttls, false, ScanType.USER_SCAN));

    // force a major compaction to remove expired cells
    region.compact(true);
    // This time raw scan should not return any cells, as all cells have expired.
    scanAndAssert(region, Collections.<Cell>emptyList(), rawScan);
  } finally {
    region.close();
  }
}
 

/**
 * Test writing edits into an HRegion, closing it, splitting logs, opening Region again. Verify
 * seqids.
 * @throws Exception on failure
 */
@Test
public void testReplayEditsWrittenViaHRegion() throws Exception {
  final String tableNameStr = "testReplayEditsWrittenViaHRegion";
  final HRegionInfo hri = new HRegionInfo(Bytes.toBytes(tableNameStr), null, null, false);
  final Path basedir = new Path(this.hbaseRootDir, tableNameStr);
  deleteDir(basedir);
  final HTableDescriptor htd = createBasic3FamilyHTD(tableNameStr);
  
  //setup basic indexing for the table
  // enable indexing to a non-existant index table
  byte[] family = new byte[] { 'a' };
  ColumnGroup fam1 = new ColumnGroup(INDEX_TABLE_NAME);
  fam1.add(new CoveredColumn(family, CoveredColumn.ALL_QUALIFIERS));
  CoveredColumnIndexSpecifierBuilder builder = new CoveredColumnIndexSpecifierBuilder();
  builder.addIndexGroup(fam1);
  builder.build(htd);

  // create the region + its WAL
  HRegion region0 = HRegion.createHRegion(hri, hbaseRootDir, this.conf, htd);
  region0.close();
  region0.getLog().closeAndDelete();
  HLog wal = createWAL(this.conf);
  RegionServerServices mockRS = Mockito.mock(RegionServerServices.class);
  // mock out some of the internals of the RSS, so we can run CPs
  Mockito.when(mockRS.getWAL()).thenReturn(wal);
  RegionServerAccounting rsa = Mockito.mock(RegionServerAccounting.class);
  Mockito.when(mockRS.getRegionServerAccounting()).thenReturn(rsa);
  ServerName mockServerName = Mockito.mock(ServerName.class);
  Mockito.when(mockServerName.getServerName()).thenReturn(tableNameStr + "-server-1234");
  Mockito.when(mockRS.getServerName()).thenReturn(mockServerName);
  HRegion region = new HRegion(basedir, wal, this.fs, this.conf, hri, htd, mockRS);
  long seqid = region.initialize();
  // HRegionServer usually does this. It knows the largest seqid across all regions.
  wal.setSequenceNumber(seqid);
  
  //make an attempted write to the primary that should also be indexed
  byte[] rowkey = Bytes.toBytes("indexed_row_key");
  Put p = new Put(rowkey);
  p.add(family, Bytes.toBytes("qual"), Bytes.toBytes("value"));
  region.put(new Put[] { p });

  // we should then see the server go down
  Mockito.verify(mockRS, Mockito.times(1)).abort(Mockito.anyString(),
    Mockito.any(Exception.class));
  region.close(true);
  wal.close();

  // then create the index table so we are successful on WAL replay
  CoveredColumnIndexer.createIndexTable(UTIL.getHBaseAdmin(), INDEX_TABLE_NAME);

  // run the WAL split and setup the region
  runWALSplit(this.conf);
  HLog wal2 = createWAL(this.conf);
  HRegion region1 = new HRegion(basedir, wal2, this.fs, this.conf, hri, htd, mockRS);

  // initialize the region - this should replay the WALEdits from the WAL
  region1.initialize();

  // now check to ensure that we wrote to the index table
  HTable index = new HTable(UTIL.getConfiguration(), INDEX_TABLE_NAME);
  int indexSize = getKeyValueCount(index);
  assertEquals("Index wasn't propertly updated from WAL replay!", 1, indexSize);
  Get g = new Get(rowkey);
  final Result result = region1.get(g);
  assertEquals("Primary region wasn't updated from WAL replay!", 1, result.size());

  // cleanup the index table
  HBaseAdmin admin = UTIL.getHBaseAdmin();
  admin.disableTable(INDEX_TABLE_NAME);
  admin.deleteTable(INDEX_TABLE_NAME);
  admin.close();
}
 

@Test
public void testPreExistingData() throws Exception {
  String tableName = "TestPreExistingData";
  byte[] familyBytes = Bytes.toBytes("f");
  long ttlMillis = TimeUnit.DAYS.toMillis(14);
  HRegion region = createRegion(tableName, familyBytes, ttlMillis);
  try {
    region.initialize();

    // timestamps for pre-existing, non-transactional data
    long now = txVisibilityState.getVisibilityUpperBound() / TxConstants.MAX_TX_PER_MS;
    long older = now - ttlMillis / 2;
    long newer = now - ttlMillis / 3;
    // timestamps for transactional data
    long nowTx = txVisibilityState.getVisibilityUpperBound();
    long olderTx = nowTx - (ttlMillis / 2) * TxConstants.MAX_TX_PER_MS;
    long newerTx = nowTx - (ttlMillis / 3) * TxConstants.MAX_TX_PER_MS;

    Map<byte[], Long> ttls = Maps.newTreeMap(Bytes.BYTES_COMPARATOR);
    ttls.put(familyBytes, ttlMillis);

    List<Cell> cells = new ArrayList<>();
    cells.add(new KeyValue(Bytes.toBytes("r1"), familyBytes, Bytes.toBytes("c1"), older, Bytes.toBytes("v11")));
    cells.add(new KeyValue(Bytes.toBytes("r1"), familyBytes, Bytes.toBytes("c2"), newer, Bytes.toBytes("v12")));
    cells.add(new KeyValue(Bytes.toBytes("r2"), familyBytes, Bytes.toBytes("c1"), older, Bytes.toBytes("v21")));
    cells.add(new KeyValue(Bytes.toBytes("r2"), familyBytes, Bytes.toBytes("c2"), newer, Bytes.toBytes("v22")));
    cells.add(new KeyValue(Bytes.toBytes("r3"), familyBytes, Bytes.toBytes("c1"), olderTx, Bytes.toBytes("v31")));
    cells.add(new KeyValue(Bytes.toBytes("r3"), familyBytes, Bytes.toBytes("c2"), newerTx, Bytes.toBytes("v32")));

    // Write non-transactional and transactional data
    for (Cell c : cells) {
      region.put(new Put(c.getRow()).add(c.getFamily(), c.getQualifier(), c.getTimestamp(), c.getValue()));
    }

    Scan rawScan = new Scan();
    rawScan.setMaxVersions();

    Transaction dummyTransaction = TxUtils.createDummyTransaction(txVisibilityState);
    Scan txScan = new Scan();
    txScan.setMaxVersions();
    txScan.setTimeRange(TxUtils.getOldestVisibleTimestamp(ttls, dummyTransaction, true),
                        TxUtils.getMaxVisibleTimestamp(dummyTransaction));
    txScan.setFilter(TransactionFilters.getVisibilityFilter(dummyTransaction, ttls, false, ScanType.USER_SCAN));

    // read all back with raw scanner
    scanAndAssert(region, cells, rawScan);

    // read all back with transaction filter
    scanAndAssert(region, cells, txScan);

    // force a flush to clear the memstore
    region.flushcache();
    scanAndAssert(region, cells, txScan);

    // force a major compaction to remove any expired cells
    region.compactStores(true);
    scanAndAssert(region, cells, txScan);

    // Reduce TTL, this should make cells with timestamps older and olderTx expire
    long newTtl = ttlMillis / 2 - 1;
    region = updateTtl(region, familyBytes, newTtl);
    ttls.put(familyBytes, newTtl);
    txScan.setTimeRange(TxUtils.getOldestVisibleTimestamp(ttls, dummyTransaction, true),
                        TxUtils.getMaxVisibleTimestamp(dummyTransaction));
    txScan.setFilter(TransactionFilters.getVisibilityFilter(dummyTransaction, ttls, false, ScanType.USER_SCAN));

    // Raw scan should still give all cells
    scanAndAssert(region, cells, rawScan);
    // However, tx scan should not return expired cells
    scanAndAssert(region, select(cells, 1, 3, 5), txScan);

    region.flushcache();
    scanAndAssert(region, cells, rawScan);

    // force a major compaction to remove any expired cells
    region.compactStores(true);
    // This time raw scan too should not return expired cells, as they would be dropped during major compaction
    scanAndAssert(region, select(cells, 1, 3, 5), rawScan);

    // Reduce TTL again to 1 ms, this should expire all cells
    newTtl = 1;
    region = updateTtl(region, familyBytes, newTtl);
    ttls.put(familyBytes, newTtl);
    txScan.setTimeRange(TxUtils.getOldestVisibleTimestamp(ttls, dummyTransaction, true),
                        TxUtils.getMaxVisibleTimestamp(dummyTransaction));
    txScan.setFilter(TransactionFilters.getVisibilityFilter(dummyTransaction, ttls, false, ScanType.USER_SCAN));

    // force a major compaction to remove expired cells
    region.compactStores(true);
    // This time raw scan should not return any cells, as all cells have expired.
    scanAndAssert(region, Collections.<Cell>emptyList(), rawScan);
  } finally {
    region.close();
  }
}
 

@Test
public void testDeleteFiltering() throws Exception {
  String tableName = "TestDeleteFiltering";
  byte[] familyBytes = Bytes.toBytes("f");
  byte[] columnBytes = Bytes.toBytes("c");
  HRegion region = createRegion(tableName, familyBytes, 0);
  try {
    region.initialize();
    TransactionStateCache cache = new TransactionStateCacheSupplier(conf).get();
    LOG.info("Coprocessor is using transaction state: " + waitForTransactionState(cache));

    byte[] row = Bytes.toBytes(1);
    for (int i = 4; i < V.length; i++) {
      Put p = new Put(row);
      p.add(familyBytes, columnBytes, V[i], Bytes.toBytes(V[i]));
      region.put(p);
    }

    // delete from the third entry back
    // take that cell's timestamp + 1 to simulate a delete in a new tx
    long deleteTs = V[5] + 1;
    Delete d = new Delete(row, deleteTs);
    LOG.info("Issuing delete at timestamp " + deleteTs);
    // row deletes are not yet supported (TransactionAwareHTable normally handles this)
    d.deleteColumns(familyBytes, columnBytes);
    region.delete(d);

    List<Cell> results = Lists.newArrayList();

    // force a flush to clear the data
    // during flush, we should drop the deleted version, but not the others
    LOG.info("Flushing region " + region.getRegionNameAsString());
    region.flushcache();

    // now a normal scan should return row with versions at: V[8], V[6].
    // V[7] is invalid and V[5] and prior are deleted.
    Scan scan = new Scan();
    scan.setMaxVersions(10);
    RegionScanner regionScanner = region.getScanner(scan);
    // should be only one row
    assertFalse(regionScanner.next(results));
    assertKeyValueMatches(results, 1,
                          new long[]{V[8], V[6], deleteTs},
                          new byte[][]{Bytes.toBytes(V[8]), Bytes.toBytes(V[6]), new byte[0]});
  } finally {
    region.close();
  }
}
 

@Test
public void testDataJanitorRegionScanner() throws Exception {
  String tableName = "TestRegionScanner";
  byte[] familyBytes = Bytes.toBytes("f");
  byte[] columnBytes = Bytes.toBytes("c");
  HRegion region = createRegion(tableName, familyBytes, TimeUnit.HOURS.toMillis(3));
  try {
    region.initialize();
    TransactionStateCache cache = new TransactionStateCacheSupplier(conf).get();
    LOG.info("Coprocessor is using transaction state: " + waitForTransactionState(cache));

    for (int i = 1; i <= 8; i++) {
      for (int k = 1; k <= i; k++) {
        Put p = new Put(Bytes.toBytes(i));
        p.add(familyBytes, columnBytes, V[k], Bytes.toBytes(V[k]));
        region.put(p);
      }
    }

    List<Cell> results = Lists.newArrayList();

    // force a flush to clear the data
    // during flush, the coprocessor should drop all KeyValues with timestamps in the invalid set
    LOG.info("Flushing region " + region.getRegionNameAsString());
    HRegion.FlushResult flushResult = region.flushcache();
    Assert.assertTrue("Unexpected flush result: " + flushResult.toString(), flushResult.isFlushSucceeded());

    // now a normal scan should only return the valid rows
    // do not use a filter here to test that cleanup works on flush
    Scan scan = new Scan();
    scan.setMaxVersions(10);
    RegionScanner regionScanner = region.getScanner(scan);

    // first returned value should be "4" with version "4"
    results.clear();
    assertTrue(regionScanner.next(results));
    assertKeyValueMatches(results, 4, new long[] {V[4]});

    results.clear();
    assertTrue(regionScanner.next(results));
    assertKeyValueMatches(results, 5, new long[] {V[4]});

    results.clear();
    assertTrue(regionScanner.next(results));
    assertKeyValueMatches(results, 6, new long[] {V[6], V[4]});

    results.clear();
    assertTrue(regionScanner.next(results));
    assertKeyValueMatches(results, 7, new long[] {V[6], V[4]});

    results.clear();
    assertFalse(regionScanner.next(results));
    assertKeyValueMatches(results, 8, new long[] {V[8], V[6], V[4]});
  } finally {
    region.close();
  }
}
 

/**
   * Test writing edits into an HRegion, closing it, splitting logs, opening Region again. Verify
   * seqids.
   * @throws Exception on failure
   */
  @SuppressWarnings("deprecation")
@Test
  public void testReplayEditsWrittenViaHRegion() throws Exception {
    final String tableNameStr = "testReplayEditsWrittenViaHRegion";
    final HRegionInfo hri = new HRegionInfo(org.apache.hadoop.hbase.TableName.valueOf(tableNameStr), 
        null, null, false);
    final Path basedir = FSUtils.getTableDir(hbaseRootDir, org.apache.hadoop.hbase.TableName.valueOf(tableNameStr));
    deleteDir(basedir);
    final HTableDescriptor htd = createBasic3FamilyHTD(tableNameStr);
    
    //setup basic indexing for the table
    // enable indexing to a non-existant index table
    byte[] family = new byte[] { 'a' };
    ColumnGroup fam1 = new ColumnGroup(INDEX_TABLE_NAME);
    fam1.add(new CoveredColumn(family, CoveredColumn.ALL_QUALIFIERS));
    CoveredColumnIndexSpecifierBuilder builder = new CoveredColumnIndexSpecifierBuilder();
    builder.addIndexGroup(fam1);
    builder.build(htd);

    // create the region + its WAL
    HRegion region0 = HRegion.createHRegion(hri, hbaseRootDir, this.conf, htd);
    region0.close();
    region0.getWAL().close();

    WALFactory walFactory = new WALFactory(this.conf, null, "localhost,1234");

    WAL wal = createWAL(this.conf, walFactory);
    RegionServerServices mockRS = Mockito.mock(RegionServerServices.class);
    // mock out some of the internals of the RSS, so we can run CPs
    Mockito.when(mockRS.getWAL(null)).thenReturn(wal);
    RegionServerAccounting rsa = Mockito.mock(RegionServerAccounting.class);
    Mockito.when(mockRS.getRegionServerAccounting()).thenReturn(rsa);
    ServerName mockServerName = Mockito.mock(ServerName.class);
    Mockito.when(mockServerName.getServerName()).thenReturn(tableNameStr + ",1234");
    Mockito.when(mockRS.getServerName()).thenReturn(mockServerName);
    HRegion region = new HRegion(basedir, wal, this.fs, this.conf, hri, htd, mockRS);
    region.initialize();
    region.getSequenceId().set(0);

    //make an attempted write to the primary that should also be indexed
    byte[] rowkey = Bytes.toBytes("indexed_row_key");
    Put p = new Put(rowkey);
    p.add(family, Bytes.toBytes("qual"), Bytes.toBytes("value"));
    region.put(p);

    // we should then see the server go down
    Mockito.verify(mockRS, Mockito.times(1)).abort(Mockito.anyString(),
      Mockito.any(Exception.class));

    // then create the index table so we are successful on WAL replay
    CoveredColumnIndexer.createIndexTable(UTIL.getHBaseAdmin(), INDEX_TABLE_NAME);

    // run the WAL split and setup the region
    runWALSplit(this.conf, walFactory);
    WAL wal2 = createWAL(this.conf, walFactory);
    HRegion region1 = new HRegion(basedir, wal2, this.fs, this.conf, hri, htd, mockRS);

    // initialize the region - this should replay the WALEdits from the WAL
    region1.initialize();

    // now check to ensure that we wrote to the index table
    HTable index = new HTable(UTIL.getConfiguration(), INDEX_TABLE_NAME);
    int indexSize = getKeyValueCount(index);
    assertEquals("Index wasn't propertly updated from WAL replay!", 1, indexSize);
    Get g = new Get(rowkey);
    final Result result = region1.get(g);
    assertEquals("Primary region wasn't updated from WAL replay!", 1, result.size());

    // cleanup the index table
    HBaseAdmin admin = UTIL.getHBaseAdmin();
    admin.disableTable(INDEX_TABLE_NAME);
    admin.deleteTable(INDEX_TABLE_NAME);
    admin.close();
  }
 

@Test
public void testDataJanitorRegionScanner() throws Exception {
  String tableName = "TestRegionScanner";
  byte[] familyBytes = Bytes.toBytes("f");
  byte[] columnBytes = Bytes.toBytes("c");
  HRegion region = createRegion(tableName, familyBytes, TimeUnit.HOURS.toMillis(3));
  try {
    region.initialize();
    TransactionStateCache cache = new TransactionStateCacheSupplier(conf).get();
    LOG.info("Coprocessor is using transaction state: " + waitForTransactionState(cache));

    for (int i = 1; i <= 8; i++) {
      for (int k = 1; k <= i; k++) {
        Put p = new Put(Bytes.toBytes(i));
        p.add(familyBytes, columnBytes, V[k], Bytes.toBytes(V[k]));
        region.put(p);
      }
    }

    List<Cell> results = Lists.newArrayList();

    // force a flush to clear the data
    // during flush, the coprocessor should drop all KeyValues with timestamps in the invalid set

    LOG.info("Flushing region " + region.getRegionInfo().getRegionNameAsString());
    Region.FlushResult flushResult = region.flushcache(true, false);
    Assert.assertTrue("Unexpected flush result: " + flushResult, flushResult.isFlushSucceeded());

    // now a normal scan should only return the valid rows
    // do not use a filter here to test that cleanup works on flush
    Scan scan = new Scan();
    scan.setMaxVersions(10);
    RegionScanner regionScanner = region.getScanner(scan);

    // first returned value should be "4" with version "4"
    results.clear();
    assertTrue(regionScanner.next(results));
    assertKeyValueMatches(results, 4, new long[]{V[4]});

    results.clear();
    assertTrue(regionScanner.next(results));
    assertKeyValueMatches(results, 5, new long[] {V[4]});

    results.clear();
    assertTrue(regionScanner.next(results));
    assertKeyValueMatches(results, 6, new long[]{V[6], V[4]});

    results.clear();
    assertTrue(regionScanner.next(results));
    assertKeyValueMatches(results, 7, new long[]{V[6], V[4]});

    results.clear();
    assertFalse(regionScanner.next(results));
    assertKeyValueMatches(results, 8, new long[] {V[8], V[6], V[4]});
  } finally {
    region.close();
  }
}
 

@Test
public void testDataJanitorRegionScanner() throws Exception {
  String tableName = "TestRegionScanner";
  byte[] familyBytes = Bytes.toBytes("f");
  byte[] columnBytes = Bytes.toBytes("c");
  HRegion region = createRegion(tableName, familyBytes, TimeUnit.HOURS.toMillis(3));
  try {
    region.initialize();
    TransactionStateCache cache = new TransactionStateCacheSupplier(conf).get();
    LOG.info("Coprocessor is using transaction state: " + waitForTransactionState(cache));

    for (int i = 1; i <= 8; i++) {
      for (int k = 1; k <= i; k++) {
        Put p = new Put(Bytes.toBytes(i));
        p.addColumn(familyBytes, columnBytes, V[k], Bytes.toBytes(V[k]));
        region.put(p);
      }
    }

    List<Cell> results = Lists.newArrayList();

    // force a flush to clear the data
    // during flush, the coprocessor should drop all KeyValues with timestamps in the invalid set

    LOG.info("Flushing region " + region.getRegionInfo().getRegionNameAsString());
    FlushResultImpl flushResult = region.flushcache(true, false, new FlushLifeCycleTracker() { });
    Assert.assertTrue("Unexpected flush result: " + flushResult, flushResult.isFlushSucceeded());

    // now a normal scan should only return the valid rows
    // do not use a filter here to test that cleanup works on flush
    Scan scan = new Scan();
    scan.setMaxVersions(10);
    RegionScanner regionScanner = region.getScanner(scan);

    // first returned value should be "4" with version "4"
    results.clear();
    assertTrue(regionScanner.next(results));
    assertKeyValueMatches(results, 4, new long[]{V[4]});

    results.clear();
    assertTrue(regionScanner.next(results));
    assertKeyValueMatches(results, 5, new long[] {V[4]});

    results.clear();
    assertTrue(regionScanner.next(results));
    assertKeyValueMatches(results, 6, new long[]{V[6], V[4]});

    results.clear();
    assertTrue(regionScanner.next(results));
    assertKeyValueMatches(results, 7, new long[]{V[6], V[4]});

    results.clear();
    assertFalse(regionScanner.next(results));
    assertKeyValueMatches(results, 8, new long[] {V[8], V[6], V[4]});
  } finally {
    region.close();
  }
}
 

@Test
public void testDeleteFiltering() throws Exception {
  String tableName = "TestDeleteFiltering";
  byte[] familyBytes = Bytes.toBytes("f");
  byte[] columnBytes = Bytes.toBytes("c");
  HRegion region = createRegion(tableName, familyBytes, 0);
  try {
    region.initialize();
    TransactionStateCache cache = new TransactionStateCacheSupplier(conf).get();
    LOG.info("Coprocessor is using transaction state: " + waitForTransactionState(cache));

    byte[] row = Bytes.toBytes(1);
    for (int i = 4; i < V.length; i++) {
      Put p = new Put(row);
      p.add(familyBytes, columnBytes, V[i], Bytes.toBytes(V[i]));
      region.put(p);
    }

    // delete from the third entry back
    // take that cell's timestamp + 1 to simulate a delete in a new tx
    long deleteTs = V[5] + 1;
    Delete d = new Delete(row, deleteTs);
    LOG.info("Issuing delete at timestamp " + deleteTs);
    // row deletes are not yet supported (TransactionAwareHTable normally handles this)
    d.deleteColumns(familyBytes, columnBytes);
    region.delete(d);

    List<Cell> results = Lists.newArrayList();

    // force a flush to clear the data
    // during flush, we should drop the deleted version, but not the others
    LOG.info("Flushing region " + region.getRegionInfo().getRegionNameAsString());
    region.flushcache(true, false);

    // now a normal scan should return row with versions at: V[8], V[6].
    // V[7] is invalid and V[5] and prior are deleted.
    Scan scan = new Scan();
    scan.setMaxVersions(10);
    RegionScanner regionScanner = region.getScanner(scan);
    // should be only one row
    assertFalse(regionScanner.next(results));
    assertKeyValueMatches(results, 1,
        new long[]{V[8], V[6], deleteTs},
        new byte[][]{Bytes.toBytes(V[8]), Bytes.toBytes(V[6]), new byte[0]});
  } finally {
    region.close();
  }
}
 

@Test
public void testDataJanitorRegionScanner() throws Exception {
  String tableName = "TestRegionScanner";
  byte[] familyBytes = Bytes.toBytes("f");
  byte[] columnBytes = Bytes.toBytes("c");
  HRegion region = createRegion(tableName, familyBytes, TimeUnit.HOURS.toMillis(3));
  try {
    region.initialize();
    TransactionStateCache cache = new TransactionStateCacheSupplier(conf).get();
    LOG.info("Coprocessor is using transaction state: " + waitForTransactionState(cache));

    for (int i = 1; i <= 8; i++) {
      for (int k = 1; k <= i; k++) {
        Put p = new Put(Bytes.toBytes(i));
        p.add(familyBytes, columnBytes, V[k], Bytes.toBytes(V[k]));
        region.put(p);
      }
    }

    List<Cell> results = Lists.newArrayList();

    // force a flush to clear the data
    // during flush, the coprocessor should drop all KeyValues with timestamps in the invalid set

    LOG.info("Flushing region " + region.getRegionInfo().getRegionNameAsString());
    Region.FlushResult flushResult = region.flushcache(true, false);
    Assert.assertTrue("Unexpected flush result: " + flushResult, flushResult.isFlushSucceeded());

    // now a normal scan should only return the valid rows
    // do not use a filter here to test that cleanup works on flush
    Scan scan = new Scan();
    scan.setMaxVersions(10);
    RegionScanner regionScanner = region.getScanner(scan);

    // first returned value should be "4" with version "4"
    results.clear();
    assertTrue(regionScanner.next(results));
    assertKeyValueMatches(results, 4, new long[]{V[4]});

    results.clear();
    assertTrue(regionScanner.next(results));
    assertKeyValueMatches(results, 5, new long[] {V[4]});

    results.clear();
    assertTrue(regionScanner.next(results));
    assertKeyValueMatches(results, 6, new long[]{V[6], V[4]});

    results.clear();
    assertTrue(regionScanner.next(results));
    assertKeyValueMatches(results, 7, new long[]{V[6], V[4]});

    results.clear();
    assertFalse(regionScanner.next(results));
    assertKeyValueMatches(results, 8, new long[] {V[8], V[6], V[4]});
  } finally {
    region.close();
  }
}
 

@Test
public void testPreExistingData() throws Exception {
  String tableName = "TestPreExistingData";
  byte[] familyBytes = Bytes.toBytes("f");
  long ttlMillis = TimeUnit.DAYS.toMillis(14);
  HRegion region = createRegion(tableName, familyBytes, ttlMillis);
  try {
    region.initialize();

    // timestamps for pre-existing, non-transactional data
    long now = txVisibilityState.getVisibilityUpperBound() / TxConstants.MAX_TX_PER_MS;
    long older = now - ttlMillis / 2;
    long newer = now - ttlMillis / 3;
    // timestamps for transactional data
    long nowTx = txVisibilityState.getVisibilityUpperBound();
    long olderTx = nowTx - (ttlMillis / 2) * TxConstants.MAX_TX_PER_MS;
    long newerTx = nowTx - (ttlMillis / 3) * TxConstants.MAX_TX_PER_MS;

    Map<byte[], Long> ttls = Maps.newTreeMap(Bytes.BYTES_COMPARATOR);
    ttls.put(familyBytes, ttlMillis);

    List<Cell> cells = new ArrayList<>();
    cells.add(new KeyValue(Bytes.toBytes("r1"), familyBytes, Bytes.toBytes("c1"), older, Bytes.toBytes("v11")));
    cells.add(new KeyValue(Bytes.toBytes("r1"), familyBytes, Bytes.toBytes("c2"), newer, Bytes.toBytes("v12")));
    cells.add(new KeyValue(Bytes.toBytes("r2"), familyBytes, Bytes.toBytes("c1"), older, Bytes.toBytes("v21")));
    cells.add(new KeyValue(Bytes.toBytes("r2"), familyBytes, Bytes.toBytes("c2"), newer, Bytes.toBytes("v22")));
    cells.add(new KeyValue(Bytes.toBytes("r3"), familyBytes, Bytes.toBytes("c1"), olderTx, Bytes.toBytes("v31")));
    cells.add(new KeyValue(Bytes.toBytes("r3"), familyBytes, Bytes.toBytes("c2"), newerTx, Bytes.toBytes("v32")));

    // Write non-transactional and transactional data
    for (Cell c : cells) {
      region.put(new Put(c.getRow()).add(c.getFamily(), c.getQualifier(), c.getTimestamp(), c.getValue()));
    }

    Scan rawScan = new Scan();
    rawScan.setMaxVersions();

    Transaction dummyTransaction = TxUtils.createDummyTransaction(txVisibilityState);
    Scan txScan = new Scan();
    txScan.setMaxVersions();
    txScan.setTimeRange(TxUtils.getOldestVisibleTimestamp(ttls, dummyTransaction, true),
                        TxUtils.getMaxVisibleTimestamp(dummyTransaction));
    txScan.setFilter(TransactionFilters.getVisibilityFilter(dummyTransaction, ttls, false, ScanType.USER_SCAN));

    // read all back with raw scanner
    scanAndAssert(region, cells, rawScan);

    // read all back with transaction filter
    scanAndAssert(region, cells, txScan);

    // force a flush to clear the memstore
    region.flushcache();
    scanAndAssert(region, cells, txScan);

    // force a major compaction to remove any expired cells
    region.compactStores(true);
    scanAndAssert(region, cells, txScan);

    // Reduce TTL, this should make cells with timestamps older and olderTx expire
    long newTtl = ttlMillis / 2 - 1;
    region = updateTtl(region, familyBytes, newTtl);
    ttls.put(familyBytes, newTtl);
    txScan.setTimeRange(TxUtils.getOldestVisibleTimestamp(ttls, dummyTransaction, true),
                        TxUtils.getMaxVisibleTimestamp(dummyTransaction));
    txScan.setFilter(TransactionFilters.getVisibilityFilter(dummyTransaction, ttls, false, ScanType.USER_SCAN));

    // Raw scan should still give all cells
    scanAndAssert(region, cells, rawScan);
    // However, tx scan should not return expired cells
    scanAndAssert(region, select(cells, 1, 3, 5), txScan);

    region.flushcache();
    scanAndAssert(region, cells, rawScan);

    // force a major compaction to remove any expired cells
    region.compactStores(true);
    // This time raw scan too should not return expired cells, as they would be dropped during major compaction
    scanAndAssert(region, select(cells, 1, 3, 5), rawScan);

    // Reduce TTL again to 1 ms, this should expire all cells
    newTtl = 1;
    region = updateTtl(region, familyBytes, newTtl);
    ttls.put(familyBytes, newTtl);
    txScan.setTimeRange(TxUtils.getOldestVisibleTimestamp(ttls, dummyTransaction, true),
                        TxUtils.getMaxVisibleTimestamp(dummyTransaction));
    txScan.setFilter(TransactionFilters.getVisibilityFilter(dummyTransaction, ttls, false, ScanType.USER_SCAN));

    // force a major compaction to remove expired cells
    region.compactStores(true);
    // This time raw scan should not return any cells, as all cells have expired.
    scanAndAssert(region, Collections.<Cell>emptyList(), rawScan);
  } finally {
    region.close();
  }
}
 

@Test
public void testDeleteFiltering() throws Exception {
  String tableName = "TestDeleteFiltering";
  byte[] familyBytes = Bytes.toBytes("f");
  byte[] columnBytes = Bytes.toBytes("c");
  HRegion region = createRegion(tableName, familyBytes, 0);
  try {
    region.initialize();
    TransactionStateCache cache = new TransactionStateCacheSupplier(conf).get();
    LOG.info("Coprocessor is using transaction state: " + waitForTransactionState(cache));

    byte[] row = Bytes.toBytes(1);
    for (int i = 4; i < V.length; i++) {
      Put p = new Put(row);
      p.add(familyBytes, columnBytes, V[i], Bytes.toBytes(V[i]));
      region.put(p);
    }

    // delete from the third entry back
    // take that cell's timestamp + 1 to simulate a delete in a new tx
    long deleteTs = V[5] + 1;
    Delete d = new Delete(row, deleteTs);
    LOG.info("Issuing delete at timestamp " + deleteTs);
    // row deletes are not yet supported (TransactionAwareHTable normally handles this)
    d.deleteColumns(familyBytes, columnBytes, deleteTs);
    region.delete(d);

    List<Cell> results = Lists.newArrayList();

    // force a flush to clear the data
    // during flush, we should drop the deleted version, but not the others
    LOG.info("Flushing region " + region.getRegionNameAsString());
    region.flushcache();

    // now a normal scan should return row with versions at: V[8], V[6].
    // V[7] is invalid and V[5] and prior are deleted.
    Scan scan = new Scan();
    scan.setMaxVersions(10);
    RegionScanner regionScanner = region.getScanner(scan);
    // should be only one row
    assertFalse(regionScanner.next(results));
    assertKeyValueMatches(results, 1,
                          new long[]{V[8], V[6], deleteTs},
                          new byte[][]{Bytes.toBytes(V[8]), Bytes.toBytes(V[6]), new byte[0]});
  } finally {
    region.close();
  }
}
 

@Test
public void testDeleteFiltering() throws Exception {
  String tableName = "TestDeleteFiltering";
  byte[] familyBytes = Bytes.toBytes("f");
  byte[] columnBytes = Bytes.toBytes("c");
  HRegion region = createRegion(tableName, familyBytes, 0);
  try {
    region.initialize();
    TransactionStateCache cache = new TransactionStateCacheSupplier(conf).get();
    LOG.info("Coprocessor is using transaction state: " + waitForTransactionState(cache));

    byte[] row = Bytes.toBytes(1);
    for (int i = 4; i < V.length; i++) {
      Put p = new Put(row);
      p.add(familyBytes, columnBytes, V[i], Bytes.toBytes(V[i]));
      region.put(p);
    }

    // delete from the third entry back
    // take that cell's timestamp + 1 to simulate a delete in a new tx
    long deleteTs = V[5] + 1;
    Delete d = new Delete(row, deleteTs);
    LOG.info("Issuing delete at timestamp " + deleteTs);
    // row deletes are not yet supported (TransactionAwareHTable normally handles this)
    d.deleteColumns(familyBytes, columnBytes);
    region.delete(d);

    List<Cell> results = Lists.newArrayList();

    // force a flush to clear the data
    // during flush, we should drop the deleted version, but not the others
    LOG.info("Flushing region " + region.getRegionNameAsString());
    region.flushcache();

    // now a normal scan should return row with versions at: V[8], V[6].
    // V[7] is invalid and V[5] and prior are deleted.
    Scan scan = new Scan();
    scan.setMaxVersions(10);
    RegionScanner regionScanner = region.getScanner(scan);
    // should be only one row
    assertFalse(regionScanner.next(results));
    assertKeyValueMatches(results, 1,
                          new long[]{V[8], V[6], deleteTs},
                          new byte[][]{Bytes.toBytes(V[8]), Bytes.toBytes(V[6]), new byte[0]});
  } finally {
    region.close();
  }
}
 

/**
   * Test writing edits into an region, closing it, splitting logs, opening Region again. Verify
   * seqids.
   * @throws Exception on failure
   */
@Test
  public void testReplayEditsWrittenViaHRegion() throws Exception {
    final String tableNameStr = "testReplayEditsWrittenViaHRegion";
    final RegionInfo hri = RegionInfoBuilder.newBuilder(org.apache.hadoop.hbase.TableName.valueOf(tableNameStr)).setSplit(false).build();
    final Path basedir = FSUtils.getTableDir(hbaseRootDir, org.apache.hadoop.hbase.TableName.valueOf(tableNameStr));
    deleteDir(basedir);
    final TableDescriptor htd = createBasic3FamilyHTD(tableNameStr);
    
    //setup basic indexing for the table
    // enable indexing to a non-existant index table
    byte[] family = new byte[] { 'a' };
    ColumnGroup fam1 = new ColumnGroup(INDEX_TABLE_NAME);
    fam1.add(new CoveredColumn(family, CoveredColumn.ALL_QUALIFIERS));
    CoveredColumnIndexSpecifierBuilder builder = new CoveredColumnIndexSpecifierBuilder();
    builder.addIndexGroup(fam1);
    builder.build(htd);
    WALFactory walFactory = new WALFactory(this.conf, "localhost,1234");

    WAL wal = createWAL(this.conf, walFactory);
    // create the region + its WAL
    HRegion region0 = HRegion.createHRegion(hri, hbaseRootDir, this.conf, htd, wal); // FIXME: Uses private type
    region0.close();
    region0.getWAL().close();

    HRegionServer mockRS = Mockito.mock(HRegionServer.class);
    // mock out some of the internals of the RSS, so we can run CPs
    when(mockRS.getWAL(null)).thenReturn(wal);
    RegionServerAccounting rsa = Mockito.mock(RegionServerAccounting.class);
    when(mockRS.getRegionServerAccounting()).thenReturn(rsa);
    ServerName mockServerName = Mockito.mock(ServerName.class);
    when(mockServerName.getServerName()).thenReturn(tableNameStr + ",1234");
    when(mockRS.getServerName()).thenReturn(mockServerName);
    HRegion region = spy(new HRegion(basedir, wal, this.fs, this.conf, hri, htd, mockRS));
    region.initialize();


    //make an attempted write to the primary that should also be indexed
    byte[] rowkey = Bytes.toBytes("indexed_row_key");
    Put p = new Put(rowkey);
    p.addColumn(family, Bytes.toBytes("qual"), Bytes.toBytes("value"));
    region.put(p);

    // we should then see the server go down
    Mockito.verify(mockRS, Mockito.times(1)).abort(Mockito.anyString(),
      Mockito.any(Exception.class));

    // then create the index table so we are successful on WAL replay
    TestIndexManagementUtil.createIndexTable(UTIL.getAdmin(), INDEX_TABLE_NAME);

    // run the WAL split and setup the region
    runWALSplit(this.conf, walFactory);
    WAL wal2 = createWAL(this.conf, walFactory);
    HRegion region1 = new HRegion(basedir, wal2, this.fs, this.conf, hri, htd, mockRS);

    // initialize the region - this should replay the WALEdits from the WAL
    region1.initialize();
    org.apache.hadoop.hbase.client.Connection hbaseConn =
            ConnectionFactory.createConnection(UTIL.getConfiguration());

    // now check to ensure that we wrote to the index table
    Table index = hbaseConn.getTable(org.apache.hadoop.hbase.TableName.valueOf(INDEX_TABLE_NAME));
    int indexSize = getKeyValueCount(index);
    assertEquals("Index wasn't propertly updated from WAL replay!", 1, indexSize);
    Get g = new Get(rowkey);
    final Result result = region1.get(g);
    assertEquals("Primary region wasn't updated from WAL replay!", 1, result.size());

    // cleanup the index table
    Admin admin = UTIL.getAdmin();
    admin.disableTable(TableName.valueOf(INDEX_TABLE_NAME));
    admin.deleteTable(TableName.valueOf(INDEX_TABLE_NAME));
    admin.close();
  }
 

@Test
public void testDeleteFiltering() throws Exception {
  String tableName = "TestDeleteFiltering";
  byte[] familyBytes = Bytes.toBytes("f");
  byte[] columnBytes = Bytes.toBytes("c");
  HRegion region = createRegion(tableName, familyBytes, 0);
  try {
    region.initialize();
    TransactionStateCache cache = new TransactionStateCacheSupplier(conf).get();
    LOG.info("Coprocessor is using transaction state: " + waitForTransactionState(cache));

    byte[] row = Bytes.toBytes(1);
    for (int i = 4; i < V.length; i++) {
      Put p = new Put(row);
      p.add(familyBytes, columnBytes, V[i], Bytes.toBytes(V[i]));
      region.put(p);
    }

    // delete from the third entry back
    // take that cell's timestamp + 1 to simulate a delete in a new tx
    long deleteTs = V[5] + 1;
    Delete d = new Delete(row, deleteTs);
    LOG.info("Issuing delete at timestamp " + deleteTs);
    // row deletes are not yet supported (TransactionAwareHTable normally handles this)
    d.deleteColumns(familyBytes, columnBytes);
    region.delete(d);

    List<Cell> results = Lists.newArrayList();

    // force a flush to clear the data
    // during flush, we should drop the deleted version, but not the others
    LOG.info("Flushing region " + region.getRegionInfo().getRegionNameAsString());
    region.flushcache(true, false);

    // now a normal scan should return row with versions at: V[8], V[6].
    // V[7] is invalid and V[5] and prior are deleted.
    Scan scan = new Scan();
    scan.setMaxVersions(10);
    RegionScanner regionScanner = region.getScanner(scan);
    // should be only one row
    assertFalse(regionScanner.next(results));
    assertKeyValueMatches(results, 1,
        new long[]{V[8], V[6], deleteTs},
        new byte[][]{Bytes.toBytes(V[8]), Bytes.toBytes(V[6]), new byte[0]});
  } finally {
    region.close();
  }
}