Examples with Get org.apache.hadoop.hbase.client.Get used on opensource projects

Example 6 with Get

use of org.apache.hadoop.hbase.client.Get in project hbase by apache.

the class MetaTableAccessor method getRegionLocation.

/**
   * Returns the HRegionLocation from meta for the given region
   * @param connection connection we're using
   * @param regionInfo region information
   * @return HRegionLocation for the given region
   * @throws IOException
   */
public static HRegionLocation getRegionLocation(Connection connection, HRegionInfo regionInfo) throws IOException {
    byte[] row = getMetaKeyForRegion(regionInfo);
    Get get = new Get(row);
    get.addFamily(HConstants.CATALOG_FAMILY);
    Result r = get(getMetaHTable(connection), get);
    return getRegionLocation(r, regionInfo, regionInfo.getReplicaId());
}

Example 7 with Get

use of org.apache.hadoop.hbase.client.Get in project hbase by apache.

the class AsyncMetaTableAccessor method getRegion.

public static CompletableFuture<Pair<HRegionInfo, ServerName>> getRegion(RawAsyncTable metaTable, byte[] regionName) {
    CompletableFuture<Pair<HRegionInfo, ServerName>> future = new CompletableFuture<>();
    byte[] row = regionName;
    HRegionInfo parsedInfo = null;
    try {
        parsedInfo = MetaTableAccessor.parseRegionInfoFromRegionName(regionName);
        row = MetaTableAccessor.getMetaKeyForRegion(parsedInfo);
    } catch (Exception parseEx) {
    // Ignore if regionName is a encoded region name.
    }
    final HRegionInfo finalHRI = parsedInfo;
    metaTable.get(new Get(row).addFamily(HConstants.CATALOG_FAMILY)).whenComplete((r, err) -> {
        if (err != null) {
            future.completeExceptionally(err);
            return;
        }
        RegionLocations locations = MetaTableAccessor.getRegionLocations(r);
        HRegionLocation hrl = locations == null ? null : locations.getRegionLocation(finalHRI == null ? 0 : finalHRI.getReplicaId());
        if (hrl == null) {
            future.complete(null);
        } else {
            future.complete(new Pair<>(hrl.getRegionInfo(), hrl.getServerName()));
        }
    });
    return future;
}

Example 8 with Get

use of org.apache.hadoop.hbase.client.Get in project hbase by apache.

the class AsyncMetaTableAccessor method getTableState.

public static CompletableFuture<Optional<TableState>> getTableState(RawAsyncTable metaTable, TableName tableName) {
    CompletableFuture<Optional<TableState>> future = new CompletableFuture<>();
    Get get = new Get(tableName.getName()).addColumn(getTableFamily(), getStateColumn());
    long time = EnvironmentEdgeManager.currentTime();
    try {
        get.setTimeRange(0, time);
        metaTable.get(get).whenComplete((result, error) -> {
            if (error != null) {
                future.completeExceptionally(error);
                return;
            }
            try {
                future.complete(getTableState(result));
            } catch (IOException e) {
                future.completeExceptionally(e);
            }
        });
    } catch (IOException ioe) {
        future.completeExceptionally(ioe);
    }
    return future;
}

Example 9 with Get

use of org.apache.hadoop.hbase.client.Get in project hbase by apache.

the class TestRowProcessorEndpoint method testMultipleRows.

@Test
public void testMultipleRows() throws Throwable {
    prepareTestData();
    failures.set(0);
    int numThreads = 100;
    concurrentExec(new SwapRowsRunner(), numThreads);
    LOG.debug("row keyvalues:" + stringifyKvs(table.get(new Get(ROW)).listCells()));
    LOG.debug("row2 keyvalues:" + stringifyKvs(table.get(new Get(ROW2)).listCells()));
    int failureNumber = failures.get();
    if (failureNumber > 0) {
        LOG.debug("We failed " + failureNumber + " times during test");
    }
    if (!swapped) {
        assertEquals(rowSize, table.get(new Get(ROW)).listCells().size());
        assertEquals(row2Size, table.get(new Get(ROW2)).listCells().size());
    } else {
        assertEquals(rowSize, table.get(new Get(ROW2)).listCells().size());
        assertEquals(row2Size, table.get(new Get(ROW)).listCells().size());
    }
}

Example 10 with Get

use of org.apache.hadoop.hbase.client.Get in project hbase by apache.

the class TestRowProcessorEndpoint method testReadModifyWrite.

@Test
public void testReadModifyWrite() throws Throwable {
    prepareTestData();
    failures.set(0);
    int numThreads = 100;
    concurrentExec(new IncrementRunner(), numThreads);
    Get get = new Get(ROW);
    LOG.debug("row keyvalues:" + stringifyKvs(table.get(get).listCells()));
    int finalCounter = incrementCounter(table);
    int failureNumber = failures.get();
    if (failureNumber > 0) {
        LOG.debug("We failed " + failureNumber + " times during test");
    }
    assertEquals(numThreads + 1 - failureNumber, finalCounter);
}