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20 package org.apache.hadoop.hbase.coprocessor;
21
22 import java.io.IOException;
23
24 import org.apache.commons.logging.Log;
25 import org.apache.commons.logging.LogFactory;
26 import org.apache.hadoop.conf.Configuration;
27 import org.apache.hadoop.hbase.*;
28 import org.apache.hadoop.hbase.Waiter.Predicate;
29 import org.apache.hadoop.hbase.client.HTable;
30 import org.apache.hadoop.hbase.client.Put;
31 import org.apache.hadoop.hbase.client.Durability;
32 import org.apache.hadoop.hbase.regionserver.HRegionServer;
33 import org.apache.hadoop.hbase.testclassification.MediumTests;
34 import org.apache.hadoop.hbase.util.Bytes;
35 import org.apache.hadoop.hbase.regionserver.wal.WALEdit;
36 import org.junit.Assert;
37 import org.junit.Test;
38 import org.junit.experimental.categories.Category;
39
40 import static org.junit.Assert.*;
41
42
43
44
45
46
47
48 @Category(MediumTests.class)
49 public class TestRegionServerCoprocessorExceptionWithAbort {
50 static final Log LOG = LogFactory.getLog(TestRegionServerCoprocessorExceptionWithAbort.class);
51 private static final HBaseTestingUtility TEST_UTIL = new HBaseTestingUtility();
52 private static final TableName TABLE_NAME = TableName.valueOf("observed_table");
53
54 @Test(timeout=60000)
55 public void testExceptionDuringInitialization() throws Exception {
56 Configuration conf = TEST_UTIL.getConfiguration();
57 conf.setInt(HConstants.HBASE_CLIENT_RETRIES_NUMBER, 2);
58 conf.setBoolean(CoprocessorHost.ABORT_ON_ERROR_KEY, true);
59 conf.set(CoprocessorHost.REGION_COPROCESSOR_CONF_KEY, "");
60 TEST_UTIL.startMiniCluster(2);
61 try {
62 MiniHBaseCluster cluster = TEST_UTIL.getHBaseCluster();
63
64
65 final HRegionServer regionServer = cluster.getRegionServer(0);
66 conf.set(CoprocessorHost.REGION_COPROCESSOR_CONF_KEY,
67 FailedInitializationObserver.class.getName());
68 regionServer.getCoprocessorHost().loadSystemCoprocessors(conf,
69 CoprocessorHost.REGION_COPROCESSOR_CONF_KEY);
70 TEST_UTIL.waitFor(10000, 1000, new Predicate<Exception>() {
71 @Override
72 public boolean evaluate() throws Exception {
73 return regionServer.isAborted();
74 }
75 });
76 } finally {
77 TEST_UTIL.shutdownMiniCluster();
78 }
79 }
80
81 @Test(timeout=60000)
82 public void testExceptionFromCoprocessorDuringPut() throws Exception {
83
84 Configuration conf = TEST_UTIL.getConfiguration();
85 conf.setInt(HConstants.HBASE_CLIENT_RETRIES_NUMBER, 2);
86 conf.set(CoprocessorHost.REGION_COPROCESSOR_CONF_KEY, BuggyRegionObserver.class.getName());
87 conf.setBoolean(CoprocessorHost.ABORT_ON_ERROR_KEY, true);
88 TEST_UTIL.startMiniCluster(2);
89 try {
90
91
92
93 final byte[] TEST_FAMILY = Bytes.toBytes("aaa");
94
95 HTable table = TEST_UTIL.createTable(TABLE_NAME, TEST_FAMILY);
96 TEST_UTIL.createMultiRegions(table, TEST_FAMILY);
97 TEST_UTIL.waitUntilAllRegionsAssigned(TABLE_NAME);
98
99
100 final HRegionServer regionServer = TEST_UTIL.getRSForFirstRegionInTable(TABLE_NAME);
101
102 boolean threwIOE = false;
103 try {
104 final byte[] ROW = Bytes.toBytes("aaa");
105 Put put = new Put(ROW);
106 put.add(TEST_FAMILY, ROW, ROW);
107 table.put(put);
108 table.flushCommits();
109
110 table.put(put);
111 table.flushCommits();
112 } catch (IOException e) {
113 threwIOE = true;
114 } finally {
115 assertTrue("The regionserver should have thrown an exception", threwIOE);
116 }
117
118
119
120 boolean aborted = false;
121 for (int i = 0; i < 10; i++) {
122 aborted = regionServer.isAborted();
123 if (aborted) {
124 break;
125 }
126 try {
127 Thread.sleep(1000);
128 } catch (InterruptedException e) {
129 fail("InterruptedException while waiting for regionserver " +
130 "zk node to be deleted.");
131 }
132 }
133 Assert.assertTrue("The region server should have aborted", aborted);
134 table.close();
135 } finally {
136 TEST_UTIL.shutdownMiniCluster();
137 }
138 }
139
140 public static class FailedInitializationObserver extends SimpleRegionObserver {
141 @SuppressWarnings("null")
142 @Override
143 public void start(CoprocessorEnvironment e) throws IOException {
144
145 Integer i = null;
146 i = i + 1;
147 }
148 }
149
150 public static class BuggyRegionObserver extends SimpleRegionObserver {
151 @SuppressWarnings("null")
152 @Override
153 public void prePut(final ObserverContext<RegionCoprocessorEnvironment> c,
154 final Put put, final WALEdit edit,
155 final Durability durability) {
156 String tableName =
157 c.getEnvironment().getRegion().getRegionInfo().getTable().getNameAsString();
158 if (tableName.equals("observed_table")) {
159
160 Integer i = null;
161 i = i + 1;
162 }
163 }
164 }
165 }