Examples with EMPTY_END_ROW org.apache.hadoop.hbase.HConstants.EMPTY_END_ROW used on opensource projects

Example 1 with EMPTY_END_ROW

use of org.apache.hadoop.hbase.HConstants.EMPTY_END_ROW in project hbase by apache.

the class TestAsyncNonMetaRegionLocator method testLocateAfter.

// usually locate after will return the same result, so we add a test to make it return different
// result.
@Test
public void testLocateAfter() throws IOException, InterruptedException, ExecutionException {
    byte[] row = Bytes.toBytes("1");
    byte[] splitKey = Arrays.copyOf(row, 2);
    TEST_UTIL.createTable(TABLE_NAME, FAMILY, new byte[][] { splitKey });
    TEST_UTIL.waitTableAvailable(TABLE_NAME);
    HRegionLocation currentLoc = LOCATOR.getRegionLocation(TABLE_NAME, row, RegionLocateType.CURRENT).get();
    ServerName currentServerName = TEST_UTIL.getRSForFirstRegionInTable(TABLE_NAME).getServerName();
    assertLocEquals(EMPTY_START_ROW, splitKey, currentServerName, currentLoc);
    HRegionLocation afterLoc = LOCATOR.getRegionLocation(TABLE_NAME, row, RegionLocateType.AFTER).get();
    ServerName afterServerName = TEST_UTIL.getHBaseCluster().getRegionServerThreads().stream().map(t -> t.getRegionServer()).filter(rs -> rs.getOnlineRegions(TABLE_NAME).stream().anyMatch(r -> Bytes.equals(splitKey, r.getRegionInfo().getStartKey()))).findAny().get().getServerName();
    assertLocEquals(splitKey, EMPTY_END_ROW, afterServerName, afterLoc);
    assertSame(afterLoc, LOCATOR.getRegionLocation(TABLE_NAME, row, RegionLocateType.AFTER).get());
}

Example 2 with EMPTY_END_ROW

use of org.apache.hadoop.hbase.HConstants.EMPTY_END_ROW in project hbase by apache.

the class TestAsyncNonMetaRegionLocator method testRegionMove.

@Test
public void testRegionMove() throws IOException, InterruptedException, ExecutionException {
    createSingleRegionTable();
    ServerName serverName = TEST_UTIL.getRSForFirstRegionInTable(TABLE_NAME).getServerName();
    HRegionLocation loc = LOCATOR.getRegionLocation(TABLE_NAME, EMPTY_START_ROW, RegionLocateType.CURRENT).get();
    assertLocEquals(EMPTY_START_ROW, EMPTY_END_ROW, serverName, loc);
    ServerName newServerName = TEST_UTIL.getHBaseCluster().getRegionServerThreads().stream().map(t -> t.getRegionServer().getServerName()).filter(sn -> !sn.equals(serverName)).findAny().get();
    TEST_UTIL.getAdmin().move(Bytes.toBytes(loc.getRegionInfo().getEncodedName()), Bytes.toBytes(newServerName.getServerName()));
    while (!TEST_UTIL.getRSForFirstRegionInTable(TABLE_NAME).getServerName().equals(newServerName)) {
        Thread.sleep(100);
    }
    // Should be same as it is in cache
    assertSame(loc, LOCATOR.getRegionLocation(TABLE_NAME, EMPTY_START_ROW, RegionLocateType.CURRENT).get());
    LOCATOR.updateCachedLocation(loc, null);
    // null error will not trigger a cache cleanup
    assertSame(loc, LOCATOR.getRegionLocation(TABLE_NAME, EMPTY_START_ROW, RegionLocateType.CURRENT).get());
    LOCATOR.updateCachedLocation(loc, new NotServingRegionException());
    assertLocEquals(EMPTY_START_ROW, EMPTY_END_ROW, newServerName, LOCATOR.getRegionLocation(TABLE_NAME, EMPTY_START_ROW, RegionLocateType.CURRENT).get());
}