| /* |
| * 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.assertArrayEquals; |
| |
| import java.io.IOException; |
| import java.util.Optional; |
| import java.util.concurrent.ExecutionException; |
| import java.util.concurrent.TimeUnit; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.hbase.HBaseClassTestRule; |
| import org.apache.hadoop.hbase.HBaseTestingUtil; |
| import org.apache.hadoop.hbase.HConstants; |
| import org.apache.hadoop.hbase.TableName; |
| import org.apache.hadoop.hbase.coprocessor.CoprocessorHost; |
| import org.apache.hadoop.hbase.coprocessor.ObserverContext; |
| import org.apache.hadoop.hbase.coprocessor.RegionCoprocessor; |
| import org.apache.hadoop.hbase.coprocessor.RegionCoprocessorEnvironment; |
| import org.apache.hadoop.hbase.coprocessor.RegionObserver; |
| import org.apache.hadoop.hbase.regionserver.StorefileRefresherChore; |
| import org.apache.hadoop.hbase.security.User; |
| 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.FutureUtils; |
| import org.junit.After; |
| import org.junit.AfterClass; |
| import org.junit.BeforeClass; |
| import org.junit.ClassRule; |
| import org.junit.Test; |
| import org.junit.experimental.categories.Category; |
| |
| @Category({ ClientTests.class, MediumTests.class }) |
| public class TestAsyncTableUseMetaReplicas { |
| |
| @ClassRule |
| public static final HBaseClassTestRule CLASS_RULE = |
| HBaseClassTestRule.forClass(TestAsyncTableUseMetaReplicas.class); |
| |
| private static final HBaseTestingUtil UTIL = new HBaseTestingUtil(); |
| |
| private static TableName TABLE_NAME = TableName.valueOf("Replica"); |
| |
| private static byte[] FAMILY = Bytes.toBytes("Family"); |
| |
| private static byte[] QUALIFIER = Bytes.toBytes("Qual"); |
| |
| private static byte[] ROW = Bytes.toBytes("Row"); |
| |
| private static byte[] VALUE = Bytes.toBytes("Value"); |
| |
| private static volatile boolean FAIL_PRIMARY_SCAN = false; |
| |
| public static final class FailPrimaryMetaScanCp implements RegionObserver, RegionCoprocessor { |
| |
| @Override |
| public Optional<RegionObserver> getRegionObserver() { |
| return Optional.of(this); |
| } |
| |
| @Override |
| public void preScannerOpen(ObserverContext<RegionCoprocessorEnvironment> c, Scan scan) |
| throws IOException { |
| RegionInfo region = c.getEnvironment().getRegionInfo(); |
| if ( |
| FAIL_PRIMARY_SCAN && TableName.isMetaTableName(region.getTable()) |
| && region.getReplicaId() == RegionReplicaUtil.DEFAULT_REPLICA_ID |
| ) { |
| throw new IOException("Inject error"); |
| } |
| } |
| } |
| |
| @BeforeClass |
| public static void setUp() throws Exception { |
| Configuration conf = UTIL.getConfiguration(); |
| conf.setInt(StorefileRefresherChore.REGIONSERVER_STOREFILE_REFRESH_PERIOD, 1000); |
| conf.setStrings(CoprocessorHost.REGION_COPROCESSOR_CONF_KEY, |
| FailPrimaryMetaScanCp.class.getName()); |
| UTIL.startMiniCluster(3); |
| HBaseTestingUtil.setReplicas(UTIL.getAdmin(), TableName.META_TABLE_NAME, 3); |
| try (ConnectionRegistry registry = ConnectionRegistryFactory.create(conf, User.getCurrent())) { |
| RegionReplicaTestHelper.waitUntilAllMetaReplicasAreReady(UTIL, registry); |
| } |
| try (Table table = UTIL.createTable(TABLE_NAME, FAMILY)) { |
| table.put(new Put(ROW).addColumn(FAMILY, QUALIFIER, VALUE)); |
| } |
| UTIL.flush(TableName.META_TABLE_NAME); |
| // wait for the store file refresh so we can read the region location from secondary meta |
| // replicas |
| Thread.sleep(2000); |
| } |
| |
| @AfterClass |
| public static void tearDown() throws Exception { |
| UTIL.shutdownMiniCluster(); |
| } |
| |
| @After |
| public void tearDownAfterTest() { |
| // make sure we do not mess up cleanup code. |
| FAIL_PRIMARY_SCAN = false; |
| } |
| |
| private void testRead(boolean useMetaReplicas) |
| throws IOException, InterruptedException, ExecutionException { |
| FAIL_PRIMARY_SCAN = true; |
| Configuration conf = new Configuration(UTIL.getConfiguration()); |
| conf.setBoolean(HConstants.USE_META_REPLICAS, useMetaReplicas); |
| conf.setLong(HConstants.HBASE_CLIENT_META_REPLICA_SCAN_TIMEOUT, TimeUnit.SECONDS.toMicros(1)); |
| try (AsyncConnection conn = ConnectionFactory.createAsyncConnection(conf).get()) { |
| Result result = FutureUtils.get(conn.getTableBuilder(TABLE_NAME) |
| .setOperationTimeout(3, TimeUnit.SECONDS).build().get(new Get(ROW))); |
| assertArrayEquals(VALUE, result.getValue(FAMILY, QUALIFIER)); |
| } |
| } |
| |
| @Test(expected = RetriesExhaustedException.class) |
| public void testNotUseMetaReplicas() |
| throws IOException, InterruptedException, ExecutionException { |
| testRead(false); |
| } |
| |
| @Test |
| public void testUseMetaReplicas() throws IOException, InterruptedException, ExecutionException { |
| testRead(true); |
| } |
| } |