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/*-
* See the file LICENSE for redistribution information.
*
* Copyright (c) 2010, 2011 Oracle and/or its affiliates. All rights reserved.
*
*/
package rep;
import static org.junit.Assert.assertTrue;
import com.sleepycat.db.Environment;
import com.sleepycat.db.EnvironmentConfig;
import com.sleepycat.db.EventHandler;
import com.sleepycat.db.EventHandlerAdapter;
import com.sleepycat.db.ReplicationHostAddress;
import com.sleepycat.db.ReplicationStats;
import com.sleepycat.db.ReplicationTimeoutType;
import com.sleepycat.db.ReplicationManagerStartPolicy;
import com.sleepycat.db.StatsConfig;
import com.sleepycat.db.VerboseConfig;
import repmgrtests.Util;
import org.junit.Test;
import java.io.File;
public class TestEmptyLogElection {
@Test public void elect() throws Exception {
int n = 10; // arbitrary
for (int i=0; i<n; i++)
doOneElection();
}
private void doOneElection() throws Exception {
int testPorts[] = Util.findAvailablePorts(2);
int port1 = testPorts[0];
int port2 = testPorts[1];
MyEventHandler mon = new MyEventHandler();
EnvironmentConfig ec = makeBasicConfig(port1, mon);
ec.setReplicationPriority(100);
File dir1 = Util.mkdir("site1");
Environment env1 = new Environment(dir1, ec);
env1.setReplicationTimeout(ReplicationTimeoutType.ELECTION_TIMEOUT,
500000);
env1.setReplicationTimeout(ReplicationTimeoutType.ELECTION_RETRY,
1000000);
env1.replicationManagerStart(1, ReplicationManagerStartPolicy.REP_ELECTION);
ec = makeBasicConfig(port2, mon);
ec.setReplicationPriority(200);
ec.replicationManagerAddRemoteSite(new ReplicationHostAddress("localhost", port1),
false);
File dir2 = Util.mkdir("site2");
Environment env2 = new Environment(dir2, ec);
env2.setReplicationTimeout(ReplicationTimeoutType.ELECTION_TIMEOUT,
500000);
env2.setReplicationTimeout(ReplicationTimeoutType.ELECTION_RETRY,
1000000);
env2.setReplicationTimeout(ReplicationTimeoutType.CONNECTION_RETRY,
500000);
env2.replicationManagerStart(1, ReplicationManagerStartPolicy.REP_ELECTION);
mon.await();
ReplicationStats s = env2.getReplicationStats(StatsConfig.DEFAULT);
assertTrue(s.getEnvId() == s.getMaster());
env1.close();
env2.close();
}
class MyEventHandler extends EventHandlerAdapter {
private boolean done, panic;
@Override synchronized public void handleRepStartupDoneEvent() {
done = true;
notifyAll();
}
@Override synchronized public void handlePanicEvent() {
done = true;
panic = true;
notifyAll();
}
synchronized void await() throws Exception {
while (!done) { wait(); }
if (panic)
throw new Exception("aborted by panic in DB");
}
}
private EnvironmentConfig makeBasicConfig(int port, EventHandler eh) throws Exception {
EnvironmentConfig ec = new EnvironmentConfig();
ec.setAllowCreate(true);
ec.setInitializeCache(true);
ec.setInitializeLocking(true);
ec.setInitializeLogging(true);
ec.setInitializeReplication(true);
ec.setTransactional(true);
ec.setThreaded(true);
ec.setReplicationNumSites(3);
ec.setEventHandler(eh);
if (Boolean.getBoolean("VERB_REPLICATION"))
ec.setVerbose(VerboseConfig.REPLICATION, true);
ec.setReplicationManagerLocalSite(new ReplicationHostAddress("localhost", port));
return (ec);
}
}
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