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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.testclassification.MediumTests;
30  import org.apache.hadoop.hbase.util.HBaseFsck;
31  import org.apache.hadoop.hbase.util.HBaseFsck.ErrorReporter.ERROR_CODE;
32  import org.apache.hadoop.hbase.zookeeper.ZKAssign;
33  import org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher;
34  import org.junit.Test;
35  import org.junit.experimental.categories.Category;
36  
37  /**
38   * This builds a table, removes info from meta, and then fails when attempting
39   * to rebuild meta.
40   */
41  @Category(MediumTests.class)
42  public class TestOfflineMetaRebuildHole extends OfflineMetaRebuildTestCore {
43  
44    @Test(timeout = 120000)
45    public void testMetaRebuildHoleFail() throws Exception {
46      // Fully remove a meta entry and hdfs region
47      byte[] startKey = splits[1];
48      byte[] endKey = splits[2];
49      deleteRegion(conf, htbl, startKey, endKey);
50  
51      wipeOutMeta();
52  
53      // is meta really messed up?
54      assertEquals(1, scanMeta());
55      assertErrors(doFsck(conf, false), new ERROR_CODE[] {
56          ERROR_CODE.NOT_IN_META_OR_DEPLOYED,
57          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      int tries = 60;
80      while(TEST_UTIL.getHBaseCluster()
81          .getMaster().getAssignmentManager().getRegionStates().getRegionsInTransition().size() > 0 &&
82          tries-- > 0) {
83        LOG.info("Waiting for RIT: "+TEST_UTIL.getHBaseCluster()
84                .getMaster().getAssignmentManager().getRegionStates().getRegionsInTransition());
85        Thread.sleep(1000);
86      }
87  
88      // Meta still messed up.
89      assertEquals(1, scanMeta());
90      HTableDescriptor[] htbls = TEST_UTIL.getHBaseAdmin().listTables();
91      LOG.info("Tables present after restart: " + Arrays.toString(htbls));
92  
93      // After HBASE-451 HBaseAdmin.listTables() gets table descriptors from FS,
94      // so the table is still present and this should be 1.
95      assertEquals(1, htbls.length);
96      assertErrors(doFsck(conf, false), new ERROR_CODE[] {
97          ERROR_CODE.NOT_IN_META_OR_DEPLOYED,
98          ERROR_CODE.NOT_IN_META_OR_DEPLOYED,
99          ERROR_CODE.NOT_IN_META_OR_DEPLOYED});
100   }
101 
102 }
103