| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.hadoop.hbase.util; |
| |
| import org.apache.hadoop.hbase.HBaseClassTestRule; |
| import org.apache.hadoop.hbase.HBaseTestingUtility; |
| import org.apache.hadoop.hbase.MiniHBaseCluster; |
| import org.apache.hadoop.hbase.TableName; |
| import org.apache.hadoop.hbase.client.Admin; |
| import org.apache.hadoop.hbase.client.ColumnFamilyDescriptorBuilder; |
| import org.apache.hadoop.hbase.client.Put; |
| import org.apache.hadoop.hbase.client.Table; |
| import org.apache.hadoop.hbase.client.TableDescriptor; |
| import org.apache.hadoop.hbase.client.TableDescriptorBuilder; |
| import org.apache.hadoop.hbase.regionserver.HRegion; |
| import org.apache.hadoop.hbase.regionserver.HRegionServer; |
| import org.apache.hadoop.hbase.testclassification.LargeTests; |
| import org.apache.hadoop.hbase.testclassification.MiscTests; |
| import org.junit.After; |
| import org.junit.AfterClass; |
| import org.junit.Assert; |
| import org.junit.Before; |
| import org.junit.BeforeClass; |
| import org.junit.ClassRule; |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.junit.experimental.categories.Category; |
| import org.junit.rules.TestName; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.concurrent.TimeUnit; |
| import java.util.stream.Collectors; |
| |
| /** |
| * Tests for Region Mover Load/Unload functionality with and without ack mode and also to test |
| * exclude functionality useful for rack decommissioning |
| */ |
| @Category({ MiscTests.class, LargeTests.class}) |
| public class TestRegionMover2 { |
| |
| @ClassRule |
| public static final HBaseClassTestRule CLASS_RULE = |
| HBaseClassTestRule.forClass(TestRegionMover2.class); |
| |
| @Rule |
| public TestName name = new TestName(); |
| |
| private static final Logger LOG = LoggerFactory.getLogger(TestRegionMover2.class); |
| |
| private static final HBaseTestingUtility TEST_UTIL = new HBaseTestingUtility(); |
| |
| @BeforeClass |
| public static void setUpBeforeClass() throws Exception { |
| TEST_UTIL.startMiniCluster(3); |
| TEST_UTIL.getAdmin().balancerSwitch(false, true); |
| } |
| |
| @AfterClass |
| public static void tearDownAfterClass() throws Exception { |
| TEST_UTIL.shutdownMiniCluster(); |
| } |
| |
| @Before |
| public void setUp() throws Exception { |
| final TableName tableName = TableName.valueOf(name.getMethodName()); |
| TableDescriptor tableDesc = TableDescriptorBuilder.newBuilder(tableName) |
| .setColumnFamily(ColumnFamilyDescriptorBuilder.of("fam1")).build(); |
| int startKey = 0; |
| int endKey = 80000; |
| TEST_UTIL.getAdmin().createTable(tableDesc, Bytes.toBytes(startKey), Bytes.toBytes(endKey), 9); |
| } |
| |
| @After |
| public void tearDown() throws Exception { |
| final TableName tableName = TableName.valueOf(name.getMethodName()); |
| TEST_UTIL.getAdmin().disableTable(tableName); |
| TEST_UTIL.getAdmin().deleteTable(tableName); |
| } |
| |
| @Test |
| public void testWithMergedRegions() throws Exception { |
| final TableName tableName = TableName.valueOf(name.getMethodName()); |
| MiniHBaseCluster cluster = TEST_UTIL.getHBaseCluster(); |
| Admin admin = TEST_UTIL.getAdmin(); |
| Table table = TEST_UTIL.getConnection().getTable(tableName); |
| List<Put> puts = new ArrayList<>(); |
| for (int i = 0; i < 10000; i++) { |
| puts.add(new Put(Bytes.toBytes("rowkey_" + i)) |
| .addColumn(Bytes.toBytes("fam1"), Bytes.toBytes("q1"), Bytes.toBytes("val_" + i))); |
| } |
| table.put(puts); |
| admin.flush(tableName); |
| HRegionServer regionServer = cluster.getRegionServer(0); |
| String rsName = regionServer.getServerName().getAddress().toString(); |
| int numRegions = regionServer.getNumberOfOnlineRegions(); |
| List<HRegion> hRegions = regionServer.getRegions().stream() |
| .filter(hRegion -> hRegion.getRegionInfo().getTable().equals(tableName)) |
| .collect(Collectors.toList()); |
| RegionMover.RegionMoverBuilder rmBuilder = |
| new RegionMover.RegionMoverBuilder(rsName, TEST_UTIL.getConfiguration()).ack(true) |
| .maxthreads(8); |
| try (RegionMover rm = rmBuilder.build()) { |
| LOG.debug("Unloading {}", regionServer.getServerName()); |
| rm.unload(); |
| Assert.assertEquals(0, regionServer.getNumberOfOnlineRegions()); |
| LOG.debug("Successfully Unloaded, now Loading"); |
| admin.mergeRegionsAsync(new byte[][] { hRegions.get(0).getRegionInfo().getRegionName(), |
| hRegions.get(1).getRegionInfo().getRegionName() }, true) |
| .get(5, TimeUnit.SECONDS); |
| Assert.assertTrue(rm.load()); |
| Assert.assertEquals(numRegions - 2, regionServer.getNumberOfOnlineRegions()); |
| } |
| } |
| |
| @Test |
| public void testWithSplitRegions() throws Exception { |
| final TableName tableName = TableName.valueOf(name.getMethodName()); |
| MiniHBaseCluster cluster = TEST_UTIL.getHBaseCluster(); |
| Admin admin = TEST_UTIL.getAdmin(); |
| Table table = TEST_UTIL.getConnection().getTable(tableName); |
| List<Put> puts = new ArrayList<>(); |
| for (int i = 10; i < 50000; i++) { |
| puts.add(new Put(Bytes.toBytes(i)) |
| .addColumn(Bytes.toBytes("fam1"), Bytes.toBytes("q1"), Bytes.toBytes("val_" + i))); |
| } |
| table.put(puts); |
| admin.flush(tableName); |
| admin.compact(tableName); |
| HRegionServer regionServer = cluster.getRegionServer(0); |
| String rsName = regionServer.getServerName().getAddress().toString(); |
| int numRegions = regionServer.getNumberOfOnlineRegions(); |
| List<HRegion> hRegions = regionServer.getRegions().stream() |
| .filter(hRegion -> hRegion.getRegionInfo().getTable().equals(tableName)) |
| .collect(Collectors.toList()); |
| |
| RegionMover.RegionMoverBuilder rmBuilder = |
| new RegionMover.RegionMoverBuilder(rsName, TEST_UTIL.getConfiguration()).ack(true) |
| .maxthreads(8); |
| try (RegionMover rm = rmBuilder.build()) { |
| LOG.debug("Unloading {}", regionServer.getServerName()); |
| rm.unload(); |
| Assert.assertEquals(0, regionServer.getNumberOfOnlineRegions()); |
| LOG.debug("Successfully Unloaded, now Loading"); |
| HRegion hRegion = hRegions.get(1); |
| if (hRegion.getRegionInfo().getStartKey().length == 0) { |
| hRegion = hRegions.get(0); |
| } |
| int startKey = 0; |
| int endKey = Integer.MAX_VALUE; |
| if (hRegion.getRegionInfo().getStartKey().length > 0) { |
| startKey = Bytes.toInt(hRegion.getRegionInfo().getStartKey()); |
| } |
| if (hRegion.getRegionInfo().getEndKey().length > 0) { |
| endKey = Bytes.toInt(hRegion.getRegionInfo().getEndKey()); |
| } |
| int midKey = startKey + (endKey - startKey) / 2; |
| admin.splitRegionAsync(hRegion.getRegionInfo().getRegionName(), Bytes.toBytes(midKey)) |
| .get(5, TimeUnit.SECONDS); |
| Assert.assertTrue(rm.load()); |
| Assert.assertEquals(numRegions - 1, regionServer.getNumberOfOnlineRegions()); |
| } |
| } |
| |
| @Test |
| public void testFailedRegionMove() throws Exception { |
| final TableName tableName = TableName.valueOf(name.getMethodName()); |
| MiniHBaseCluster cluster = TEST_UTIL.getHBaseCluster(); |
| Admin admin = TEST_UTIL.getAdmin(); |
| Table table = TEST_UTIL.getConnection().getTable(tableName); |
| List<Put> puts = new ArrayList<>(); |
| for (int i = 0; i < 1000; i++) { |
| puts.add(new Put(Bytes.toBytes("rowkey_" + i)) |
| .addColumn(Bytes.toBytes("fam1"), Bytes.toBytes("q1"), Bytes.toBytes("val_" + i))); |
| } |
| table.put(puts); |
| admin.flush(tableName); |
| HRegionServer regionServer = cluster.getRegionServer(0); |
| String rsName = regionServer.getServerName().getAddress().toString(); |
| int numRegions = regionServer.getNumberOfOnlineRegions(); |
| List<HRegion> hRegions = regionServer.getRegions().stream() |
| .filter(hRegion -> hRegion.getRegionInfo().getTable().equals(tableName)) |
| .collect(Collectors.toList()); |
| RegionMover.RegionMoverBuilder rmBuilder = |
| new RegionMover.RegionMoverBuilder(rsName, TEST_UTIL.getConfiguration()).ack(true) |
| .maxthreads(8); |
| try (RegionMover rm = rmBuilder.build()) { |
| LOG.debug("Unloading {}", regionServer.getServerName()); |
| rm.unload(); |
| Assert.assertEquals(0, regionServer.getNumberOfOnlineRegions()); |
| LOG.debug("Successfully Unloaded, now Loading"); |
| admin.offline(hRegions.get(0).getRegionInfo().getRegionName()); |
| // loading regions will fail because of offline region |
| Assert.assertFalse(rm.load()); |
| } |
| } |
| |
| } |