Examples with HRegion org.apache.hadoop.hbase.regionserver.HRegion used on opensource projects

Example 81 with HRegion

use of org.apache.hadoop.hbase.regionserver.HRegion in project cdap by caskdata.

the class IncrementSummingScannerTest method testIncrementScanningWithBatchAndUVB.

@Test
public void testIncrementScanningWithBatchAndUVB() throws Exception {
    TableId tableId = TableId.from(NamespaceId.DEFAULT.getNamespace(), "TestIncrementSummingScannerWithUpperVisibilityBound");
    byte[] familyBytes = Bytes.toBytes("f");
    byte[] columnBytes = Bytes.toBytes("c");
    HRegion region = createRegion(tableId, familyBytes);
    try {
        region.initialize();
        long start = 0;
        long now = start;
        long counter1 = 0;
        // adding 5 delta increments
        for (int i = 0; i < 5; i++) {
            Put p = new Put(Bytes.toBytes("r1"), now++);
            p.add(familyBytes, columnBytes, Bytes.toBytes(1L));
            p.setAttribute(HBaseTable.DELTA_WRITE, TRUE);
            region.put(p);
            counter1++;
        }
        // Also: we want different combinations of batch limit & uvbs
        for (int i = 0; i < 7; i++) {
            for (int k = 0; k < 4; k++) {
                long[] uvbs = new long[k];
                for (int l = 0; l < uvbs.length; l++) {
                    uvbs[l] = start + (k + 1) * (l + 1);
                }
                verifyCounts(region, new Scan().setMaxVersions(), new long[] { counter1 }, i > 0 ? i : -1, uvbs);
            }
        }
        // Now test same with two groups of increments
        int counter2 = 0;
        for (int i = 0; i < 5; i++) {
            Put p = new Put(Bytes.toBytes("r2"), now + i);
            p.add(familyBytes, columnBytes, Bytes.toBytes(2L));
            p.setAttribute(HBaseTable.DELTA_WRITE, TRUE);
            region.put(p);
            counter2 += 2;
        }
        for (int i = 0; i < 12; i++) {
            for (int k = 0; k < 4; k++) {
                long[] uvbs = new long[k];
                for (int l = 0; l < uvbs.length; l++) {
                    uvbs[l] = start + (k + 1) * (l + 1);
                }
                verifyCounts(region, new Scan().setMaxVersions(), new long[] { counter1, counter2 }, i > 0 ? i : -1, uvbs);
            }
        }
    } finally {
        region.close();
    }
}

Example 82 with HRegion

use of org.apache.hadoop.hbase.regionserver.HRegion in project cdap by caskdata.

the class IncrementSummingScannerTest method testIncrementScanning.

@Test
public void testIncrementScanning() throws Exception {
    TableId tableId = TableId.from(NamespaceId.DEFAULT.getNamespace(), "TestIncrementSummingScanner");
    byte[] familyBytes = Bytes.toBytes("f");
    byte[] columnBytes = Bytes.toBytes("c");
    HRegion region = createRegion(tableId, familyBytes);
    try {
        region.initialize();
        // test handling of a single increment value alone
        Put p = new Put(Bytes.toBytes("r1"));
        p.add(familyBytes, columnBytes, Bytes.toBytes(3L));
        p.setAttribute(HBaseTable.DELTA_WRITE, TRUE);
        region.put(p);
        Scan scan = new Scan();
        RegionScanner scanner = new IncrementSummingScanner(region, -1, region.getScanner(scan), ScanType.USER_SCAN);
        List<Cell> results = Lists.newArrayList();
        scanner.next(results);
        assertEquals(1, results.size());
        Cell cell = results.get(0);
        assertNotNull(cell);
        assertEquals(3L, Bytes.toLong(cell.getValue()));
        // test handling of a single total sum
        p = new Put(Bytes.toBytes("r2"));
        p.add(familyBytes, columnBytes, Bytes.toBytes(5L));
        region.put(p);
        scan = new Scan(Bytes.toBytes("r2"));
        scanner = new IncrementSummingScanner(region, -1, region.getScanner(scan), ScanType.USER_SCAN);
        results = Lists.newArrayList();
        scanner.next(results);
        assertEquals(1, results.size());
        cell = results.get(0);
        assertNotNull(cell);
        assertEquals(5L, Bytes.toLong(cell.getValue()));
        // test handling of multiple increment values
        long now = System.currentTimeMillis();
        p = new Put(Bytes.toBytes("r3"));
        for (int i = 0; i < 5; i++) {
            p.add(familyBytes, columnBytes, now - i, Bytes.toBytes((long) (i + 1)));
        }
        p.setAttribute(HBaseTable.DELTA_WRITE, TRUE);
        region.put(p);
        scan = new Scan(Bytes.toBytes("r3"));
        scan.setMaxVersions();
        scanner = new IncrementSummingScanner(region, -1, region.getScanner(scan), ScanType.USER_SCAN);
        results = Lists.newArrayList();
        scanner.next(results);
        assertEquals(1, results.size());
        cell = results.get(0);
        assertNotNull(cell);
        assertEquals(15L, Bytes.toLong(cell.getValue()));
        // test handling of multiple increment values followed by a total sum, then other increments
        now = System.currentTimeMillis();
        p = new Put(Bytes.toBytes("r4"));
        for (int i = 0; i < 3; i++) {
            p.add(familyBytes, columnBytes, now - i, Bytes.toBytes(1L));
        }
        p.setAttribute(HBaseTable.DELTA_WRITE, TRUE);
        region.put(p);
        // this put will appear as a "total" sum prior to all the delta puts
        p = new Put(Bytes.toBytes("r4"));
        p.add(familyBytes, columnBytes, now - 5, Bytes.toBytes(5L));
        region.put(p);
        scan = new Scan(Bytes.toBytes("r4"));
        scan.setMaxVersions();
        scanner = new IncrementSummingScanner(region, -1, region.getScanner(scan), ScanType.USER_SCAN);
        results = Lists.newArrayList();
        scanner.next(results);
        assertEquals(1, results.size());
        cell = results.get(0);
        assertNotNull(cell);
        assertEquals(8L, Bytes.toLong(cell.getValue()));
        // test handling of an increment column followed by a non-increment column
        p = new Put(Bytes.toBytes("r4"));
        p.add(familyBytes, Bytes.toBytes("c2"), Bytes.toBytes("value"));
        region.put(p);
        scan = new Scan(Bytes.toBytes("r4"));
        scan.setMaxVersions();
        scanner = new IncrementSummingScanner(region, -1, region.getScanner(scan), ScanType.USER_SCAN);
        results = Lists.newArrayList();
        scanner.next(results);
        assertEquals(2, results.size());
        cell = results.get(0);
        assertNotNull(cell);
        assertEquals(8L, Bytes.toLong(cell.getValue()));
        cell = results.get(1);
        assertNotNull(cell);
        assertEquals("value", Bytes.toString(cell.getValue()));
        // test handling of an increment column followed by a delete
        now = System.currentTimeMillis();
        Delete d = new Delete(Bytes.toBytes("r5"));
        d.deleteColumn(familyBytes, columnBytes, now - 3);
        region.delete(d);
        p = new Put(Bytes.toBytes("r5"));
        for (int i = 2; i >= 0; i--) {
            p.add(familyBytes, columnBytes, now - i, Bytes.toBytes(1L));
        }
        p.setAttribute(HBaseTable.DELTA_WRITE, TRUE);
        region.put(p);
        scan = new Scan(Bytes.toBytes("r5"));
        scan.setMaxVersions();
        scan.setRaw(true);
        scanner = new IncrementSummingScanner(region, -1, region.getScanner(scan), ScanType.COMPACT_RETAIN_DELETES);
        results = Lists.newArrayList();
        scanner.next(results);
        // delete marker will not be returned for user scan
        assertEquals(2, results.size());
        cell = results.get(0);
        assertNotNull(cell);
        assertEquals(3L, Bytes.toLong(cell.getValue(), IncrementHandlerState.DELTA_MAGIC_PREFIX.length, 8));
        // next cell should be the delete
        cell = results.get(1);
        assertTrue(CellUtil.isDelete(cell));
    } finally {
        region.close();
    }
}

Example 83 with HRegion

use of org.apache.hadoop.hbase.regionserver.HRegion in project cdap by caskdata.

the class IncrementSummingScannerTest method createRegion.

static HRegion createRegion(Configuration hConf, CConfiguration cConf, TableId tableId, HColumnDescriptor cfd) throws Exception {
    HBaseTableUtil tableUtil = new HBaseTableUtilFactory(cConf).get();
    HTableDescriptorBuilder htd = tableUtil.buildHTableDescriptor(tableId);
    cfd.setMaxVersions(Integer.MAX_VALUE);
    cfd.setKeepDeletedCells(true);
    htd.addFamily(cfd);
    htd.addCoprocessor(IncrementHandler.class.getName());
    HTableDescriptor desc = htd.build();
    String tableName = desc.getNameAsString();
    Path tablePath = new Path("/tmp/" + tableName);
    Path hlogPath = new Path("/tmp/hlog-" + tableName);
    FileSystem fs = FileSystem.get(hConf);
    assertTrue(fs.mkdirs(tablePath));
    WALFactory walFactory = new WALFactory(hConf, null, hlogPath.toString());
    WAL hLog = walFactory.getWAL(new byte[] { 1 });
    HRegionInfo regionInfo = new HRegionInfo(desc.getTableName());
    HRegionFileSystem regionFS = HRegionFileSystem.createRegionOnFileSystem(hConf, fs, tablePath, regionInfo);
    return new HRegion(regionFS, hLog, hConf, desc, new LocalRegionServerServices(hConf, ServerName.valueOf(InetAddress.getLocalHost().getHostName(), 0, System.currentTimeMillis())));
}

Example 84 with HRegion

use of org.apache.hadoop.hbase.regionserver.HRegion in project cdap by caskdata.

the class IncrementSummingScannerTest method testIncrementScanningWithBatchAndUVB.

@Test
public void testIncrementScanningWithBatchAndUVB() throws Exception {
    TableId tableId = TableId.from(NamespaceId.DEFAULT.getNamespace(), "TestIncrementSummingScannerWithUpperVisibilityBound");
    byte[] familyBytes = Bytes.toBytes("f");
    byte[] columnBytes = Bytes.toBytes("c");
    HRegion region = createRegion(tableId, familyBytes);
    try {
        region.initialize();
        long start = 0;
        long now = start;
        long counter1 = 0;
        // adding 5 delta increments
        for (int i = 0; i < 5; i++) {
            Put p = new Put(Bytes.toBytes("r1"), now++);
            p.add(familyBytes, columnBytes, Bytes.toBytes(1L));
            p.setAttribute(HBaseTable.DELTA_WRITE, TRUE);
            region.put(p);
            counter1++;
        }
        // Also: we want different combinations of batch limit & uvbs
        for (int i = 0; i < 7; i++) {
            for (int k = 0; k < 4; k++) {
                long[] uvbs = new long[k];
                for (int l = 0; l < uvbs.length; l++) {
                    uvbs[l] = start + (k + 1) * (l + 1);
                }
                verifyCounts(region, new Scan().setMaxVersions(), new long[] { counter1 }, i > 0 ? i : -1, uvbs);
            }
        }
        // Now test same with two groups of increments
        int counter2 = 0;
        for (int i = 0; i < 5; i++) {
            Put p = new Put(Bytes.toBytes("r2"), now + i);
            p.add(familyBytes, columnBytes, Bytes.toBytes(2L));
            p.setAttribute(HBaseTable.DELTA_WRITE, TRUE);
            region.put(p);
            counter2 += 2;
        }
        for (int i = 0; i < 12; i++) {
            for (int k = 0; k < 4; k++) {
                long[] uvbs = new long[k];
                for (int l = 0; l < uvbs.length; l++) {
                    uvbs[l] = start + (k + 1) * (l + 1);
                }
                verifyCounts(region, new Scan().setMaxVersions(), new long[] { counter1, counter2 }, i > 0 ? i : -1, uvbs);
            }
        }
    } finally {
        region.close();
    }
}

Example 85 with HRegion

use of org.apache.hadoop.hbase.regionserver.HRegion in project cdap by caskdata.

the class HBase11Test method forEachRegion.

@Override
public <T> Map<byte[], T> forEachRegion(byte[] tableName, Function<HRegion, T> function) {
    MiniHBaseCluster hbaseCluster = getHBaseCluster();
    Map<byte[], T> results = new TreeMap<>(Bytes.BYTES_COMPARATOR);
    // make sure consumer config cache is updated
    for (JVMClusterUtil.RegionServerThread t : hbaseCluster.getRegionServerThreads()) {
        List<Region> serverRegions = t.getRegionServer().getOnlineRegions(TableName.valueOf(tableName));
        for (Region region : serverRegions) {
            results.put(region.getRegionInfo().getRegionName(), function.apply((HRegion) region));
        }
    }
    return results;
}