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/**
* Derby - Class org.apache.derbyTesting.functionTests.tests.lang.JoinDeadlockTest
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.derbyTesting.functionTests.tests.lang;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.Properties;
import junit.framework.Test;
import org.apache.derbyTesting.junit.BaseJDBCTestCase;
import org.apache.derbyTesting.junit.SystemPropertyTestSetup;
import org.apache.derbyTesting.junit.TestConfiguration;
public final class JoinDeadlockTest extends BaseJDBCTestCase {
/**
* Public constructor required for running test as standalone JUnit.
* @param name test name
*/
public JoinDeadlockTest(String name)
{
super(name);
}
public static Test suite()
{
final Properties systemProperties = new Properties();
systemProperties.setProperty("derby.locks.waitTimeout", "7");
systemProperties.setProperty("derby.locks.deadlockTimeout", "5");
return new SystemPropertyTestSetup(
TestConfiguration.defaultSuite(JoinDeadlockTest.class),
systemProperties,
true);
}
public void testJoinDeadlock() throws Exception
{
Statement st = createStatement();
try {
Connection c2 = openDefaultConnection();
setAutoCommit(false);
c2.setAutoCommit(false);
// user 1 for bug 1573
// a deadlock when reopening a join gets an assertion
// violation in close()
st.executeUpdate("create table outer1(c1 int)");
st.executeUpdate("create index o1_i1 on outer1(c1)");
st.executeUpdate("insert into outer1 (c1) values 1, 2");
commit();
st.executeUpdate("create table inner1(c1 int, c2 char(254))");
st.executeUpdate("create index i1_i1 on inner1(c1)");
st.executeUpdate("insert into inner1 (c1) values 1, 2");
commit();
st.executeUpdate("create table inner2(c1 int, c2 char(254))");
st.executeUpdate("create index i2_i1 on inner2(c1)");
st.executeUpdate("insert into inner2 (c1) values 1, 2");
commit();
// this user will get lock timeout in subquery on 2nd next
ResultSet c1_rs = st.executeQuery(
"select * from outer1 where c1 <= (select count(*) " +
"from inner1, inner2 where outer1.c1 = outer1.c1)");
c1_rs.next();
assertEquals(c1_rs.getString(1), "1");
Statement c2_st = c2.createStatement();
c2_st.executeUpdate("update inner1 set c1 = c1 where c1 = 1");
try {
c1_rs.next();
} catch (SQLException e) {
assertSQLState("40XL1", e);
}
c2.rollback();
c2.close();
} finally {
// cleanup
dontThrow(st, "drop table outer1");
dontThrow(st, "drop table inner1");
dontThrow(st, "drop table inner2");
commit();
}
}
private void dontThrow(Statement st, String stm) {
try {
st.executeUpdate(stm);
} catch (SQLException e) {
// ignore, best effort here
println("\"" + stm+ "\" failed");
}
}
}
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