| /** |
| * 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.regionserver; |
| |
| import java.io.IOException; |
| import java.util.List; |
| import java.util.Optional; |
| import org.apache.hadoop.hbase.DoNotRetryIOException; |
| import org.apache.hadoop.hbase.HBaseClassTestRule; |
| import org.apache.hadoop.hbase.HBaseTestingUtility; |
| import org.apache.hadoop.hbase.TableName; |
| import org.apache.hadoop.hbase.client.ColumnFamilyDescriptorBuilder; |
| import org.apache.hadoop.hbase.client.Durability; |
| 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.client.TableDescriptor; |
| import org.apache.hadoop.hbase.client.TableDescriptorBuilder; |
| 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.io.hfile.CorruptHFileException; |
| import org.apache.hadoop.hbase.testclassification.MediumTests; |
| import org.apache.hadoop.hbase.util.Bytes; |
| 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; |
| |
| /** |
| * Tests a scanner on a corrupt hfile. |
| */ |
| @Category(MediumTests.class) |
| public class TestScannerWithCorruptHFile { |
| |
| @ClassRule |
| public static final HBaseClassTestRule CLASS_RULE = |
| HBaseClassTestRule.forClass(TestScannerWithCorruptHFile.class); |
| |
| @Rule public TestName name = new TestName(); |
| private static final byte[] FAMILY_NAME = Bytes.toBytes("f"); |
| private final static HBaseTestingUtility TEST_UTIL = new HBaseTestingUtility(); |
| |
| |
| @BeforeClass |
| public static void setup() throws Exception { |
| TEST_UTIL.startMiniCluster(1); |
| } |
| |
| @AfterClass |
| public static void tearDown() throws Exception { |
| TEST_UTIL.shutdownMiniCluster(); |
| } |
| |
| public static class CorruptHFileCoprocessor implements RegionCoprocessor, RegionObserver { |
| @Override |
| public Optional<RegionObserver> getRegionObserver() { |
| return Optional.of(this); |
| } |
| |
| @Override |
| public boolean preScannerNext(ObserverContext<RegionCoprocessorEnvironment> e, |
| InternalScanner s, List<Result> results, int limit, boolean hasMore) throws IOException { |
| throw new CorruptHFileException("For test"); |
| } |
| } |
| |
| @Test(expected = DoNotRetryIOException.class) |
| public void testScanOnCorruptHFile() throws IOException { |
| TableName tableName = TableName.valueOf(name.getMethodName()); |
| TableDescriptor tableDescriptor = TableDescriptorBuilder.newBuilder(tableName) |
| .setCoprocessor(CorruptHFileCoprocessor.class.getName()) |
| .setColumnFamily(ColumnFamilyDescriptorBuilder.of(FAMILY_NAME)).build(); |
| Table table = TEST_UTIL.createTable(tableDescriptor, null); |
| try { |
| loadTable(table, 1); |
| scan(table); |
| } finally { |
| table.close(); |
| } |
| } |
| |
| private void loadTable(Table table, int numRows) throws IOException { |
| for (int i = 0; i < numRows; ++i) { |
| byte[] row = Bytes.toBytes(i); |
| Put put = new Put(row); |
| put.setDurability(Durability.SKIP_WAL); |
| put.addColumn(FAMILY_NAME, null, row); |
| table.put(put); |
| } |
| } |
| |
| private void scan(Table table) throws IOException { |
| Scan scan = new Scan(); |
| scan.setCaching(1); |
| scan.setCacheBlocks(false); |
| ResultScanner scanner = table.getScanner(scan); |
| try { |
| scanner.next(); |
| } finally { |
| scanner.close(); |
| } |
| } |
| } |