| /** |
| * 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.client; |
| |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertTrue; |
| import static org.junit.Assert.fail; |
| |
| import java.util.List; |
| import java.util.concurrent.ExecutionException; |
| import java.util.concurrent.Future; |
| import java.util.concurrent.TimeUnit; |
| import org.apache.hadoop.hbase.HBaseClassTestRule; |
| import org.apache.hadoop.hbase.HBaseTestingUtility; |
| import org.apache.hadoop.hbase.TableName; |
| import org.apache.hadoop.hbase.Waiter.ExplainingPredicate; |
| import org.apache.hadoop.hbase.testclassification.ClientTests; |
| import org.apache.hadoop.hbase.testclassification.MediumTests; |
| import org.apache.hadoop.hbase.util.Bytes; |
| import org.apache.hadoop.hbase.util.Threads; |
| import org.junit.AfterClass; |
| 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; |
| |
| @Category({ MediumTests.class, ClientTests.class }) |
| public class TestSplitOrMergeAtTableLevel { |
| |
| @ClassRule |
| public static final HBaseClassTestRule CLASS_RULE = |
| HBaseClassTestRule.forClass(TestSplitOrMergeAtTableLevel.class); |
| |
| private final static HBaseTestingUtility TEST_UTIL = new HBaseTestingUtility(); |
| private static byte[] FAMILY = Bytes.toBytes("testFamily"); |
| |
| @Rule |
| public TestName name = new TestName(); |
| private static Admin admin; |
| |
| @BeforeClass |
| public static void setUpBeforeClass() throws Exception { |
| TEST_UTIL.startMiniCluster(2); |
| admin = TEST_UTIL.getAdmin(); |
| } |
| |
| @AfterClass |
| public static void tearDownAfterClass() throws Exception { |
| TEST_UTIL.shutdownMiniCluster(); |
| } |
| |
| @Test |
| public void testTableSplitSwitch() throws Exception { |
| final TableName tableName = TableName.valueOf(name.getMethodName()); |
| TableDescriptor tableDesc = TableDescriptorBuilder.newBuilder(tableName) |
| .setColumnFamily(ColumnFamilyDescriptorBuilder.of(FAMILY)) |
| .setSplitEnabled(false).build(); |
| |
| // create a table with split disabled |
| Table t = TEST_UTIL.createTable(tableDesc, null); |
| TEST_UTIL.waitTableAvailable(tableName); |
| |
| // load data into the table |
| TEST_UTIL.loadTable(t, FAMILY, false); |
| |
| assertTrue(admin.getRegions(tableName).size() == 1); |
| |
| // check that we have split disabled |
| assertFalse(admin.getDescriptor(tableName).isSplitEnabled()); |
| trySplitAndEnsureItFails(tableName); |
| enableTableSplit(tableName); |
| trySplitAndEnsureItIsSuccess(tableName); |
| } |
| |
| @Test |
| public void testTableSplitSwitchForPreSplittedTable() throws Exception { |
| final TableName tableName = TableName.valueOf(name.getMethodName()); |
| |
| // create a table with split disabled |
| TableDescriptor tableDesc = TableDescriptorBuilder.newBuilder(tableName) |
| .setColumnFamily(ColumnFamilyDescriptorBuilder.of(FAMILY)) |
| .setSplitEnabled(false) |
| .build(); |
| Table t = TEST_UTIL.createTable(tableDesc, new byte[][] { Bytes.toBytes(10) }); |
| TEST_UTIL.waitTableAvailable(tableName); |
| |
| // load data into the table |
| TEST_UTIL.loadTable(t, FAMILY, false); |
| |
| assertTrue(admin.getRegions(tableName).size() == 2); |
| |
| // check that we have split disabled |
| assertFalse(admin.getDescriptor(tableName).isSplitEnabled()); |
| trySplitAndEnsureItFails(tableName); |
| enableTableSplit(tableName); |
| trySplitAndEnsureItIsSuccess(tableName); |
| } |
| |
| @Test |
| public void testTableMergeSwitch() throws Exception { |
| final TableName tableName = TableName.valueOf(name.getMethodName()); |
| |
| TableDescriptor tableDesc = TableDescriptorBuilder.newBuilder(tableName) |
| .setColumnFamily(ColumnFamilyDescriptorBuilder.of(FAMILY)) |
| .setMergeEnabled(false) |
| .build(); |
| |
| Table t = TEST_UTIL.createTable(tableDesc, null); |
| TEST_UTIL.waitTableAvailable(tableName); |
| TEST_UTIL.loadTable(t, FAMILY, false); |
| |
| // check merge is disabled for the table |
| assertFalse(admin.getDescriptor(tableName).isMergeEnabled()); |
| |
| trySplitAndEnsureItIsSuccess(tableName); |
| Threads.sleep(10000); |
| tryMergeAndEnsureItFails(tableName); |
| admin.disableTable(tableName); |
| enableTableMerge(tableName); |
| admin.enableTable(tableName); |
| tryMergeAndEnsureItIsSuccess(tableName); |
| } |
| |
| @Test |
| public void testTableMergeSwitchForPreSplittedTable() throws Exception { |
| final TableName tableName = TableName.valueOf(name.getMethodName()); |
| |
| TableDescriptor tableDesc = TableDescriptorBuilder.newBuilder(tableName) |
| .setColumnFamily(ColumnFamilyDescriptorBuilder.of(FAMILY)) |
| .setMergeEnabled(false) |
| .build(); |
| |
| Table t = TEST_UTIL.createTable(tableDesc, new byte[][] { Bytes.toBytes(10) }); |
| TEST_UTIL.waitTableAvailable(tableName); |
| TEST_UTIL.loadTable(t, FAMILY, false); |
| |
| // check merge is disabled for the table |
| assertFalse(admin.getDescriptor(tableName).isMergeEnabled()); |
| assertTrue(admin.getRegions(tableName).size() == 2); |
| tryMergeAndEnsureItFails(tableName); |
| enableTableMerge(tableName); |
| tryMergeAndEnsureItIsSuccess(tableName); |
| } |
| |
| private void trySplitAndEnsureItFails(final TableName tableName) throws Exception { |
| // get the original table region count |
| List<RegionInfo> regions = admin.getRegions(tableName); |
| int originalCount = regions.size(); |
| |
| // split the table and make sure region count does not increase |
| Future<?> f = admin.splitRegionAsync(regions.get(0).getEncodedNameAsBytes(), Bytes.toBytes(2)); |
| try { |
| f.get(10, TimeUnit.SECONDS); |
| fail("Should not get here."); |
| } catch (ExecutionException ee) { |
| // expected to reach here |
| // check and ensure that table does not get splitted |
| assertTrue(admin.getRegions(tableName).size() == originalCount); |
| } |
| } |
| |
| /** |
| * Method to enable split for the passed table and validate this modification. |
| * @param tableName name of the table |
| */ |
| private void enableTableSplit(final TableName tableName) throws Exception { |
| // Get the original table descriptor |
| TableDescriptor originalTableDesc = admin.getDescriptor(tableName); |
| TableDescriptor modifiedTableDesc = TableDescriptorBuilder.newBuilder(originalTableDesc) |
| .setSplitEnabled(true) |
| .build(); |
| |
| // Now modify the table descriptor and enable split for it |
| admin.modifyTable(modifiedTableDesc); |
| |
| // Verify that split is enabled |
| assertTrue(admin.getDescriptor(tableName).isSplitEnabled()); |
| } |
| |
| private void trySplitAndEnsureItIsSuccess(final TableName tableName) |
| throws Exception { |
| // get the original table region count |
| List<RegionInfo> regions = admin.getRegions(tableName); |
| int originalCount = regions.size(); |
| |
| // split the table and wait until region count increases |
| admin.split(tableName, Bytes.toBytes(3)); |
| TEST_UTIL.waitFor(30000, new ExplainingPredicate<Exception>() { |
| |
| @Override |
| public boolean evaluate() throws Exception { |
| return admin.getRegions(tableName).size() > originalCount; |
| } |
| |
| @Override |
| public String explainFailure() throws Exception { |
| return "Split has not finished yet"; |
| } |
| }); |
| } |
| |
| private void tryMergeAndEnsureItFails(final TableName tableName) throws Exception { |
| // assert we have at least 2 regions in the table |
| List<RegionInfo> regions = admin.getRegions(tableName); |
| int originalCount = regions.size(); |
| assertTrue(originalCount >= 2); |
| |
| byte[] nameOfRegionA = regions.get(0).getEncodedNameAsBytes(); |
| byte[] nameOfRegionB = regions.get(1).getEncodedNameAsBytes(); |
| |
| // check and ensure that region do not get merged |
| Future<?> f = admin.mergeRegionsAsync(nameOfRegionA, nameOfRegionB, true); |
| try { |
| f.get(10, TimeUnit.SECONDS); |
| fail("Should not get here."); |
| } catch (ExecutionException ee) { |
| // expected to reach here |
| // check and ensure that region do not get merged |
| assertTrue(admin.getRegions(tableName).size() == originalCount); |
| } |
| } |
| |
| |
| /** |
| * Method to enable merge for the passed table and validate this modification. |
| * @param tableName name of the table |
| */ |
| private void enableTableMerge(final TableName tableName) throws Exception { |
| // Get the original table descriptor |
| TableDescriptor originalTableDesc = admin.getDescriptor(tableName); |
| TableDescriptor modifiedTableDesc = TableDescriptorBuilder.newBuilder(originalTableDesc) |
| .setMergeEnabled(true) |
| .build(); |
| |
| // Now modify the table descriptor and enable merge for it |
| admin.modifyTable(modifiedTableDesc); |
| |
| // Verify that merge is enabled |
| assertTrue(admin.getDescriptor(tableName).isMergeEnabled()); |
| } |
| |
| private void tryMergeAndEnsureItIsSuccess(final TableName tableName) throws Exception { |
| // assert we have at least 2 regions in the table |
| List<RegionInfo> regions = admin.getRegions(tableName); |
| int originalCount = regions.size(); |
| assertTrue(originalCount >= 2); |
| |
| byte[] nameOfRegionA = regions.get(0).getEncodedNameAsBytes(); |
| byte[] nameOfRegionB = regions.get(1).getEncodedNameAsBytes(); |
| |
| // merge the table regions and wait until region count decreases |
| admin.mergeRegionsAsync(nameOfRegionA, nameOfRegionB, true); |
| TEST_UTIL.waitFor(30000, new ExplainingPredicate<Exception>() { |
| |
| @Override |
| public boolean evaluate() throws Exception { |
| return admin.getRegions(tableName).size() < originalCount; |
| } |
| |
| @Override |
| public String explainFailure() throws Exception { |
| return "Merge has not finished yet"; |
| } |
| }); |
| } |
| } |