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