| /** |
| * 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.hdfs.server.blockmanagement; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertNotNull; |
| import static org.junit.Assert.assertNull; |
| import static org.junit.Assert.assertTrue; |
| |
| import java.io.IOException; |
| import java.util.Arrays; |
| import java.util.HashMap; |
| import java.util.LinkedList; |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.hadoop.hdfs.DFSTestUtil; |
| import org.apache.hadoop.hdfs.protocol.Block; |
| import org.junit.Test; |
| |
| |
| /** |
| * This test makes sure that |
| * CorruptReplicasMap::numBlocksWithCorruptReplicas and |
| * CorruptReplicasMap::getCorruptReplicaBlockIds |
| * return the correct values |
| */ |
| public class TestCorruptReplicaInfo { |
| |
| private static final Log LOG = |
| LogFactory.getLog(TestCorruptReplicaInfo.class); |
| |
| private Map<Long, Block> block_map = |
| new HashMap<Long, Block>(); |
| |
| // Allow easy block creation by block id |
| // Return existing block if one with same block id already exists |
| private Block getBlock(Long block_id) { |
| if (!block_map.containsKey(block_id)) { |
| block_map.put(block_id, new Block(block_id,0,0)); |
| } |
| |
| return block_map.get(block_id); |
| } |
| |
| private Block getBlock(int block_id) { |
| return getBlock((long)block_id); |
| } |
| |
| @Test |
| public void testCorruptReplicaInfo() throws IOException, |
| InterruptedException { |
| |
| CorruptReplicasMap crm = new CorruptReplicasMap(); |
| |
| // Make sure initial values are returned correctly |
| assertEquals("Number of corrupt blocks must initially be 0", 0, crm.size()); |
| assertNull("Param n cannot be less than 0", crm.getCorruptReplicaBlockIds(-1, null)); |
| assertNull("Param n cannot be greater than 100", crm.getCorruptReplicaBlockIds(101, null)); |
| long[] l = crm.getCorruptReplicaBlockIds(0, null); |
| assertNotNull("n = 0 must return non-null", l); |
| assertEquals("n = 0 must return an empty list", 0, l.length); |
| |
| // create a list of block_ids. A list is used to allow easy validation of the |
| // output of getCorruptReplicaBlockIds |
| int NUM_BLOCK_IDS = 140; |
| List<Long> block_ids = new LinkedList<Long>(); |
| for (int i=0;i<NUM_BLOCK_IDS;i++) { |
| block_ids.add((long)i); |
| } |
| |
| DatanodeDescriptor dn1 = DFSTestUtil.getLocalDatanodeDescriptor(); |
| DatanodeDescriptor dn2 = DFSTestUtil.getLocalDatanodeDescriptor(); |
| |
| crm.addToCorruptReplicasMap(getBlock(0), dn1, "TEST"); |
| assertEquals("Number of corrupt blocks not returning correctly", |
| 1, crm.size()); |
| crm.addToCorruptReplicasMap(getBlock(1), dn1, "TEST"); |
| assertEquals("Number of corrupt blocks not returning correctly", |
| 2, crm.size()); |
| |
| crm.addToCorruptReplicasMap(getBlock(1), dn2, "TEST"); |
| assertEquals("Number of corrupt blocks not returning correctly", |
| 2, crm.size()); |
| |
| crm.removeFromCorruptReplicasMap(getBlock(1)); |
| assertEquals("Number of corrupt blocks not returning correctly", |
| 1, crm.size()); |
| |
| crm.removeFromCorruptReplicasMap(getBlock(0)); |
| assertEquals("Number of corrupt blocks not returning correctly", |
| 0, crm.size()); |
| |
| for (Long block_id: block_ids) { |
| crm.addToCorruptReplicasMap(getBlock(block_id), dn1, "TEST"); |
| } |
| |
| assertEquals("Number of corrupt blocks not returning correctly", |
| NUM_BLOCK_IDS, crm.size()); |
| |
| assertTrue("First five block ids not returned correctly ", |
| Arrays.equals(new long[]{0,1,2,3,4}, |
| crm.getCorruptReplicaBlockIds(5, null))); |
| |
| LOG.info(crm.getCorruptReplicaBlockIds(10, 7L)); |
| LOG.info(block_ids.subList(7, 18)); |
| |
| assertTrue("10 blocks after 7 not returned correctly ", |
| Arrays.equals(new long[]{8,9,10,11,12,13,14,15,16,17}, |
| crm.getCorruptReplicaBlockIds(10, 7L))); |
| |
| } |
| } |