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  import static org.junit.Assert.assertTrue;
25  
26  import java.util.Arrays;
27  
28  import org.apache.hadoop.hbase.HBaseTestingUtility;
29  import org.apache.hadoop.hbase.HTableDescriptor;
30  import org.apache.hadoop.hbase.MediumTests;
31  import org.apache.hadoop.hbase.util.HBaseFsck;
32  import org.apache.hadoop.hbase.util.HBaseFsck.ErrorReporter.ERROR_CODE;
33  import org.apache.hadoop.hbase.zookeeper.ZKAssign;
34  import org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher;
35  import org.junit.Test;
36  import org.junit.experimental.categories.Category;
37  
38  /**
39   * This builds a table, removes info from meta, and then fails when attempting
40   * to rebuild meta.
41   */
42  @Category(MediumTests.class)
43  public class TestOfflineMetaRebuildHole extends OfflineMetaRebuildTestCore {
44  
45    @Test(timeout = 120000)
46    public void testMetaRebuildHoleFail() throws Exception {
47      // Fully remove a meta entry and hdfs region
48      byte[] startKey = splits[1];
49      byte[] endKey = splits[2];
50      deleteRegion(conf, htbl, startKey, endKey);
51  
52      wipeOutMeta();
53  
54      // is meta really messed up?
55      assertEquals(0, scanMeta());
56      assertErrors(doFsck(conf, false), new ERROR_CODE[] {
57          ERROR_CODE.NOT_IN_META_OR_DEPLOYED, ERROR_CODE.NOT_IN_META_OR_DEPLOYED,
58          ERROR_CODE.NOT_IN_META_OR_DEPLOYED, });
59      // Note, would like to check # of tables, but this takes a while to time
60      // out.
61  
62      // shutdown the minicluster
63      TEST_UTIL.shutdownMiniHBaseCluster();
64      TEST_UTIL.shutdownMiniZKCluster();
65  
66      // attempt to rebuild meta table from scratch
67      HBaseFsck fsck = new HBaseFsck(conf);
68      assertFalse(fsck.rebuildMeta(false));
69  
70      // bring up the minicluster
71      TEST_UTIL.startMiniZKCluster(); // tables seem enabled by default
72      TEST_UTIL.restartHBaseCluster(3);
73  
74      ZooKeeperWatcher zkw = HBaseTestingUtility.getZooKeeperWatcher(TEST_UTIL);
75  
76      LOG.info("Waiting for no more RIT");
77      ZKAssign.blockUntilNoRIT(zkw);
78      LOG.info("No more RIT in ZK, now doing final test verification");
79  
80      // Meta still messed up.
81      assertEquals(0, scanMeta());
82      HTableDescriptor[] htbls = TEST_UTIL.getHBaseAdmin().listTables();
83      LOG.info("Tables present after restart: " + Arrays.toString(htbls));
84  
85      // After HBASE-451 HBaseAdmin.listTables() gets table descriptors from FS,
86      // so the table is still present and this should be 1.
87      assertEquals(1, htbls.length);
88      assertErrors(doFsck(conf, false), new ERROR_CODE[] {
89          ERROR_CODE.NOT_IN_META_OR_DEPLOYED, ERROR_CODE.NOT_IN_META_OR_DEPLOYED,
90          ERROR_CODE.NOT_IN_META_OR_DEPLOYED, });
91    }
92  
93    @org.junit.Rule
94    public org.apache.hadoop.hbase.ResourceCheckerJUnitRule cu =
95      new org.apache.hadoop.hbase.ResourceCheckerJUnitRule();
96  }
97