1   /**
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *     http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing, software
13   * distributed under the License is distributed on an "AS IS" BASIS,
14   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15   * See the License for the specific language governing permissions and
16   * limitations under the License.
17   */
18  package org.apache.hadoop.hbase.util.hbck;
19  
20  import static org.apache.hadoop.hbase.util.hbck.HbckTestingUtil.assertErrors;
21  import static org.apache.hadoop.hbase.util.hbck.HbckTestingUtil.doFsck;
22  import static org.junit.Assert.assertEquals;
23  import static org.junit.Assert.assertFalse;
24  
25  import java.util.Arrays;
26  
27  import org.apache.hadoop.hbase.HBaseTestingUtility;
28  import org.apache.hadoop.hbase.HTableDescriptor;
29  import org.apache.hadoop.hbase.util.HBaseFsck;
30  import org.apache.hadoop.hbase.util.HBaseFsck.ErrorReporter.ERROR_CODE;
31  import org.apache.hadoop.hbase.zookeeper.ZKAssign;
32  import org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher;
33  import org.junit.Test;
34  
35  /**
36   * This builds a table, removes info from meta, and then fails when attempting
37   * to rebuild meta.
38   */
39  public class TestOfflineMetaRebuildHole extends OfflineMetaRebuildTestCore {
40  
41    @Test(timeout = 120000)
42    public void testMetaRebuildHoleFail() throws Exception {
43      // Fully remove a meta entry and hdfs region
44      byte[] startKey = splits[1];
45      byte[] endKey = splits[2];
46      deleteRegion(conf, htbl, startKey, endKey);
47  
48      wipeOutMeta();
49  
50      // is meta really messed up?
51      assertEquals(0, scanMeta());
52      assertErrors(doFsck(conf, false), new ERROR_CODE[] {
53          ERROR_CODE.NOT_IN_META_OR_DEPLOYED, ERROR_CODE.NOT_IN_META_OR_DEPLOYED,
54          ERROR_CODE.NOT_IN_META_OR_DEPLOYED, });
55      // Note, would like to check # of tables, but this takes a while to time
56      // out.
57  
58      // shutdown the minicluster
59      TEST_UTIL.shutdownMiniHBaseCluster();
60      TEST_UTIL.shutdownMiniZKCluster();
61  
62      // attempt to rebuild meta table from scratch
63      HBaseFsck fsck = new HBaseFsck(conf);
64      assertFalse(fsck.rebuildMeta());
65  
66      // bring up the minicluster
67      TEST_UTIL.startMiniZKCluster(); // tables seem enabled by default
68      TEST_UTIL.restartHBaseCluster(3);
69  
70      ZooKeeperWatcher zkw = HBaseTestingUtility.getZooKeeperWatcher(TEST_UTIL);
71  
72      LOG.info("Waiting for no more RIT");
73      ZKAssign.blockUntilNoRIT(zkw);
74      LOG.info("No more RIT in ZK, now doing final test verification");
75  
76      // Meta still messed up.
77      assertEquals(0, scanMeta());
78      HTableDescriptor[] htbls = TEST_UTIL.getHBaseAdmin().listTables();
79      LOG.info("Tables present after restart: " + Arrays.toString(htbls));
80  
81      // After HBASE-451 HBaseAdmin.listTables() gets table descriptors from FS,
82      // so the table is still present and this should be 1.
83      assertEquals(1, htbls.length);
84      assertErrors(doFsck(conf, false), new ERROR_CODE[] {
85          ERROR_CODE.NOT_IN_META_OR_DEPLOYED, ERROR_CODE.NOT_IN_META_OR_DEPLOYED,
86          ERROR_CODE.NOT_IN_META_OR_DEPLOYED, });
87    }
88  }