/**
* 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.hadoop.hbase.snapshot;
import java.io.IOException;
import java.util.HashSet;
import java.util.Set;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.hbase.HBaseTestingUtility;
import org.apache.hadoop.hbase.HConstants;
import org.apache.hadoop.hbase.SmallTests;
import org.apache.hadoop.hbase.errorhandling.ForeignExceptionDispatcher;
import org.apache.hadoop.hbase.protobuf.generated.HBaseProtos.SnapshotDescription;
import org.apache.hadoop.hbase.snapshot.ReferenceServerWALsTask;
import org.apache.hadoop.hbase.snapshot.SnapshotDescriptionUtils;
import org.apache.hadoop.hbase.snapshot.TakeSnapshotUtils;
import org.apache.hadoop.hbase.util.FSUtils;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import org.mockito.Mockito;
/**
* Test that the WAL reference task works as expected
*/
@Category(SmallTests.class)
public class TestWALReferenceTask {
private static final Log LOG = LogFactory.getLog(TestWALReferenceTask.class);
private static final HBaseTestingUtility UTIL = new HBaseTestingUtility();
@Test
public void testRun() throws IOException {
Configuration conf = UTIL.getConfiguration();
FileSystem fs = UTIL.getTestFileSystem();
// setup the log dir
Path testDir = UTIL.getDataTestDir();
Set<String> servers = new HashSet<String>();
Path logDir = new Path(testDir, HConstants.HREGION_LOGDIR_NAME);
Path server1Dir = new Path(logDir, "Server1");
servers.add(server1Dir.getName());
Path server2Dir = new Path(logDir, "me.hbase.com,56073,1348618509968");
servers.add(server2Dir.getName());
// logs under server 1
Path log1_1 = new Path(server1Dir, "me.hbase.com%2C56073%2C1348618509968.1348618520536");
Path log1_2 = new Path(server1Dir, "me.hbase.com%2C56073%2C1348618509968.1234567890123");
// logs under server 2
Path log2_1 = new Path(server2Dir, "me.hbase.com%2C56074%2C1348618509998.1348618515589");
Path log2_2 = new Path(server2Dir, "me.hbase.com%2C56073%2C1348618509968.1234567890123");
// create all the log files
fs.createNewFile(log1_1);
fs.createNewFile(log1_2);
fs.createNewFile(log2_1);
fs.createNewFile(log2_2);
FSUtils.logFileSystemState(fs, testDir, LOG);
FSUtils.setRootDir(conf, testDir);
SnapshotDescription snapshot = SnapshotDescription.newBuilder()
.setName("testWALReferenceSnapshot").build();
ForeignExceptionDispatcher listener = Mockito.mock(ForeignExceptionDispatcher.class);
// reference all the files in the first server directory
ReferenceServerWALsTask task = new ReferenceServerWALsTask(snapshot, listener, server1Dir,
conf, fs);
task.call();
// reference all the files in the first server directory
task = new ReferenceServerWALsTask(snapshot, listener, server2Dir, conf, fs);
task.call();
// verify that we got everything
FSUtils.logFileSystemState(fs, testDir, LOG);
Path workingDir = SnapshotDescriptionUtils.getWorkingSnapshotDir(snapshot, testDir);
Path snapshotLogDir = new Path(workingDir, HConstants.HREGION_LOGDIR_NAME);
// make sure we reference the all the wal files
TakeSnapshotUtils.verifyAllLogsGotReferenced(fs, logDir, servers, snapshot, snapshotLogDir);
// make sure we never got an error
Mockito.verify(listener, Mockito.atLeastOnce()).rethrowException();
Mockito.verifyNoMoreInteractions(listener);
}
}