| /* |
| * 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.master; |
| |
| import static org.junit.Assert.assertNotNull; |
| import static org.junit.Assert.assertThrows; |
| import static org.junit.Assert.assertTrue; |
| |
| import java.util.Arrays; |
| import java.util.concurrent.TimeUnit; |
| import java.util.stream.Stream; |
| import java.util.stream.StreamSupport; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.hbase.HBaseClassTestRule; |
| import org.apache.hadoop.hbase.HBaseTestingUtility; |
| import org.apache.hadoop.hbase.HConstants; |
| import org.apache.hadoop.hbase.StartMiniClusterOption; |
| import org.apache.hadoop.hbase.TableName; |
| import org.apache.hadoop.hbase.client.AsyncTable; |
| import org.apache.hadoop.hbase.client.Connection; |
| import org.apache.hadoop.hbase.client.Put; |
| import org.apache.hadoop.hbase.client.Result; |
| import org.apache.hadoop.hbase.client.ResultScanner; |
| import org.apache.hadoop.hbase.client.Scan; |
| import org.apache.hadoop.hbase.client.Table; |
| import org.apache.hadoop.hbase.testclassification.LargeTests; |
| import org.apache.hadoop.hbase.testclassification.MasterTests; |
| import org.apache.hadoop.hbase.util.Bytes; |
| import org.junit.After; |
| import org.junit.Before; |
| 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; |
| |
| @Category({ MasterTests.class, LargeTests.class }) |
| public class TestMasterRepairMode { |
| |
| @ClassRule |
| public static final HBaseClassTestRule CLASS_RULE = |
| HBaseClassTestRule.forClass(TestMasterRepairMode.class); |
| |
| @Rule |
| public TestName name = new TestName(); |
| |
| private static final Logger LOG = LoggerFactory.getLogger(TestMasterRepairMode.class); |
| |
| private static final byte[] FAMILYNAME = Bytes.toBytes("fam"); |
| |
| private static HBaseTestingUtility TEST_UTIL; |
| |
| @Before |
| public void setUp() throws Exception { |
| TEST_UTIL = new HBaseTestingUtility(); |
| } |
| |
| @After |
| public void tearDown() throws Exception { |
| TEST_UTIL.shutdownMiniCluster(); |
| } |
| |
| private void enableMaintenanceMode() { |
| Configuration c = TEST_UTIL.getConfiguration(); |
| c.setBoolean(HMaster.MAINTENANCE_MODE, true); |
| c.setInt("hbase.master.init.timeout.localHBaseCluster", 30000); |
| } |
| |
| @Test |
| public void testNewCluster() throws Exception { |
| enableMaintenanceMode(); |
| |
| TEST_UTIL.startMiniCluster( |
| StartMiniClusterOption.builder().numRegionServers(0).numDataNodes(3).build()); |
| |
| Connection conn = TEST_UTIL.getConnection(); |
| assertTrue(conn.getAdmin().isMasterInMaintenanceMode()); |
| |
| try (Table table = conn.getTable(TableName.META_TABLE_NAME); |
| ResultScanner scanner = table.getScanner(new Scan())) { |
| assertNotNull("Could not read meta.", scanner.next()); |
| } |
| } |
| |
| @Test |
| public void testExistingCluster() throws Exception { |
| TableName testRepairMode = TableName.valueOf(name.getMethodName()); |
| |
| TEST_UTIL.startMiniCluster(); |
| Table t = TEST_UTIL.createTable(testRepairMode, FAMILYNAME); |
| Put p = new Put(Bytes.toBytes("r")); |
| p.addColumn(FAMILYNAME, Bytes.toBytes("c"), new byte[0]); |
| t.put(p); |
| |
| TEST_UTIL.shutdownMiniHBaseCluster(); |
| |
| LOG.info("Starting master-only"); |
| |
| enableMaintenanceMode(); |
| TEST_UTIL.startMiniHBaseCluster( |
| StartMiniClusterOption.builder().numRegionServers(0).createRootDir(false).build()); |
| |
| Connection conn = TEST_UTIL.getConnection(); |
| assertTrue(conn.getAdmin().isMasterInMaintenanceMode()); |
| |
| try (Table table = conn.getTable(TableName.META_TABLE_NAME); |
| ResultScanner scanner = table.getScanner(HConstants.TABLE_FAMILY); |
| Stream<Result> results = StreamSupport.stream(scanner.spliterator(), false)) { |
| assertTrue("Did not find user table records while reading hbase:meta", |
| results.anyMatch(r -> Arrays.equals(r.getRow(), testRepairMode.getName()))); |
| } |
| // use async table so we can set the timeout and retry value to let the operation fail fast |
| AsyncTable<?> table = conn.toAsyncConnection().getTableBuilder(testRepairMode) |
| .setScanTimeout(5, TimeUnit.SECONDS).setMaxRetries(2).build(); |
| assertThrows("Should not be able to access user-space tables in repair mode.", Exception.class, |
| () -> { |
| try (ResultScanner scanner = table.getScanner(new Scan())) { |
| scanner.next(); |
| } |
| }); |
| } |
| } |