/**
* Copyright (c) 2011 Yahoo! Inc. All rights reserved.
*
* Licensed 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. See accompanying LICENSE file.
*/
package com.yahoo.omid.tso;
import static org.hamcrest.CoreMatchers.is;
import static org.hamcrest.number.OrderingComparison.greaterThan;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertThat;
import static org.junit.Assert.assertTrue;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.junit.Test;
import com.yahoo.omid.tso.messages.CommitRequest;
import com.yahoo.omid.tso.messages.CommitResponse;
import com.yahoo.omid.tso.messages.CommittedTransactionReport;
import com.yahoo.omid.tso.messages.TimestampRequest;
import com.yahoo.omid.tso.messages.TimestampResponse;
public class TestPersistence extends TSOTestBase {
private static final Log LOG = LogFactory.getLog(TestPersistence.class);
@Override
protected boolean recoveryEnabled() {
return true;
}
@Test
public void testCommit() throws Exception {
clientHandler.sendMessage(new TimestampRequest());
clientHandler.receiveBootstrap();
TimestampResponse tr1 = clientHandler.receiveMessage(TimestampResponse.class);
clientHandler.sendMessage(new CommitRequest(tr1.timestamp, new RowKey[] { r1 }));
CommitResponse cr1 = clientHandler.receiveMessage(CommitResponse.class);
clientHandler.sendMessage(new TimestampRequest());
// Pending commit report
CommittedTransactionReport ctr1 = clientHandler.receiveMessage(CommittedTransactionReport.class);
assertEquals(cr1.startTimestamp, ctr1.startTimestamp);
assertEquals(cr1.commitTimestamp, ctr1.commitTimestamp);
tr1 = clientHandler.receiveMessage(TimestampResponse.class);
clientHandler.sendMessage(new CommitRequest(tr1.timestamp, new RowKey[] { r1, r2 }));
cr1 = clientHandler.receiveMessage(CommitResponse.class);
LOG.info("Going to shut down TSO");
teardownTSO();
LOG.info("Going to restart TSO");
setupTSO();
LOG.info("TSO started, going to process transactions");
clientHandler.sendMessage(new TimestampRequest());
clientHandler.receiveBootstrap();
TimestampResponse tr2 = clientHandler.receiveMessage(TimestampResponse.class);
clientHandler.sendMessage(new CommitRequest(tr2.timestamp, new RowKey[] { r1 }));
CommitResponse cr2 = clientHandler.receiveMessage(CommitResponse.class);
LOG.info("Timestamps: start " + tr2.timestamp + ", commit" + cr2.startTimestamp);
assertTrue(cr2.committed);
assertTrue(cr2.commitTimestamp > tr2.timestamp);
assertEquals(tr2.timestamp, cr2.startTimestamp);
assertThat(tr2.timestamp, is(greaterThan(tr1.timestamp)));
}
@Test
public void testBigLog() throws Exception {
clientHandler.sendMessage(new TimestampRequest());
clientHandler.receiveBootstrap();
for (int i = 0; i < 10000; ++i) {
Object msg;
while (!((msg = clientHandler.receiveMessage()) instanceof TimestampResponse))
// iterate until we get a TimestampResponse
;
TimestampResponse tr1 = (TimestampResponse) msg;
clientHandler.sendMessage(new CommitRequest(tr1.timestamp, new RowKey[] { r1, r2 }));
clientHandler.receiveMessage(CommitResponse.class);
clientHandler.sendMessage(new TimestampRequest());
}
clientHandler.clearMessages();
LOG.info("Going to shut down TSO");
teardownTSO();
LOG.info("Going to restart TSO");
setupTSO();
clientHandler.sendMessage(new TimestampRequest());
clientHandler.receiveBootstrap();
clientHandler.receiveMessage(TimestampResponse.class);
}
}