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* Licensed to the Apache Software Foundation (ASF) under one
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* 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.cassandra.db;
import java.net.InetAddress;
import java.util.Collections;
import org.junit.Before;
import org.junit.Test;
import org.apache.cassandra.SchemaLoader;
import org.apache.cassandra.Util;
import org.apache.cassandra.config.DatabaseDescriptor;
import org.apache.cassandra.cql3.QueryProcessor;
import org.apache.cassandra.cql3.UntypedResultSet;
import org.apache.cassandra.db.composites.CellNameType;
import org.apache.cassandra.locator.TokenMetadata;
import org.apache.cassandra.service.StorageService;
import org.apache.cassandra.utils.UUIDGen;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import static org.apache.cassandra.utils.ByteBufferUtil.bytes;
public class BatchlogManagerTest extends SchemaLoader
{
@Before
public void setUp() throws Exception
{
TokenMetadata metadata = StorageService.instance.getTokenMetadata();
InetAddress localhost = InetAddress.getByName("127.0.0.1");
metadata.updateNormalToken(Util.token("A"), localhost);
metadata.updateHostId(UUIDGen.getTimeUUID(), localhost);
}
@Test
public void testReplay() throws Exception
{
assertEquals(0, BatchlogManager.instance.countAllBatches());
assertEquals(0, BatchlogManager.instance.getTotalBatchesReplayed());
// Generate 1000 mutations and put them all into the batchlog.
// Half (500) ready to be replayed, half not.
CellNameType comparator = Keyspace.open("Keyspace1").getColumnFamilyStore("Standard1").metadata.comparator;
for (int i = 0; i < 1000; i++)
{
Mutation mutation = new Mutation("Keyspace1", bytes(i));
mutation.add("Standard1", comparator.makeCellName(bytes(i)), bytes(i), System.currentTimeMillis());
long timestamp = System.currentTimeMillis();
if (i < 500)
timestamp -= DatabaseDescriptor.getWriteRpcTimeout() * 2;
BatchlogManager.getBatchlogMutationFor(Collections.singleton(mutation), UUIDGen.getTimeUUID(), timestamp * 1000).apply();
}
assertEquals(1000, BatchlogManager.instance.countAllBatches());
assertEquals(0, BatchlogManager.instance.getTotalBatchesReplayed());
// Force batchlog replay.
BatchlogManager.instance.replayAllFailedBatches();
// Ensure that the first half, and only the first half, got replayed.
assertEquals(500, BatchlogManager.instance.countAllBatches());
assertEquals(500, BatchlogManager.instance.getTotalBatchesReplayed());
for (int i = 0; i < 1000; i++)
{
UntypedResultSet result = QueryProcessor.processInternal(String.format("SELECT * FROM \"Keyspace1\".\"Standard1\" WHERE key = intAsBlob(%d)", i));
if (i < 500)
{
assertEquals(bytes(i), result.one().getBytes("key"));
assertEquals(bytes(i), result.one().getBytes("column1"));
assertEquals(bytes(i), result.one().getBytes("value"));
}
else
{
assertTrue(result.isEmpty());
}
}
// Ensure that no stray mutations got somehow applied.
UntypedResultSet result = QueryProcessor.processInternal(String.format("SELECT count(*) FROM \"Keyspace1\".\"Standard1\""));
assertEquals(500, result.one().getLong("count"));
}
}