/**
* 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 com.twitter.distributedlog.admin;
import com.twitter.distributedlog.BookKeeperClient;
import com.twitter.distributedlog.DLMTestUtil;
import com.twitter.distributedlog.DLSN;
import com.twitter.distributedlog.DistributedLogConfiguration;
import com.twitter.distributedlog.DistributedLogManager;
import com.twitter.distributedlog.LogSegmentMetadata;
import com.twitter.distributedlog.TestDistributedLogBase;
import com.twitter.distributedlog.TestZooKeeperClientBuilder;
import com.twitter.distributedlog.ZooKeeperClient;
import com.twitter.distributedlog.metadata.DryrunLogSegmentMetadataStoreUpdater;
import com.twitter.distributedlog.metadata.LogSegmentMetadataStoreUpdater;
import com.twitter.distributedlog.util.SchedulerUtils;
import org.apache.zookeeper.CreateMode;
import org.apache.zookeeper.ZooDefs;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.net.URI;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
public class TestDLCK extends TestDistributedLogBase {
static final Logger LOG = LoggerFactory.getLogger(TestDLCK.class);
protected static DistributedLogConfiguration conf =
new DistributedLogConfiguration().setLockTimeout(10)
.setEnableLedgerAllocatorPool(true).setLedgerAllocatorPoolName("test");
private ZooKeeperClient zkc;
@Before
public void setup() throws Exception {
zkc = TestZooKeeperClientBuilder
.newBuilder()
.uri(createDLMURI("/"))
.build();
}
@After
public void teardown() throws Exception {
zkc.close();
}
static Map<Long, LogSegmentMetadata> getLogSegments(DistributedLogManager dlm) throws Exception {
Map<Long, LogSegmentMetadata> logSegmentMap =
new HashMap<Long, LogSegmentMetadata>();
List<LogSegmentMetadata> segments = dlm.getLogSegments();
for (LogSegmentMetadata segment : segments) {
logSegmentMap.put(segment.getLogSegmentSequenceNumber(), segment);
}
return logSegmentMap;
}
static void verifyLogSegment(Map<Long, LogSegmentMetadata> segments,
DLSN lastDLSN, long logSegmentSequenceNumber,
int recordCount, long lastTxId) {
LogSegmentMetadata segment = segments.get(logSegmentSequenceNumber);
assertNotNull(segment);
assertEquals(lastDLSN, segment.getLastDLSN());
assertEquals(recordCount, segment.getRecordCount());
assertEquals(lastTxId, segment.getLastTxId());
}
@Test(timeout = 60000)
@SuppressWarnings("deprecation")
public void testCheckAndRepairDLNamespace() throws Exception {
DistributedLogConfiguration confLocal = new DistributedLogConfiguration();
confLocal.loadConf(conf);
confLocal.setImmediateFlushEnabled(true);
confLocal.setOutputBufferSize(0);
confLocal.setLogSegmentSequenceNumberValidationEnabled(false);
URI uri = createDLMURI("/check-and-repair-dl-namespace");
zkc.get().create(uri.getPath(), new byte[0], ZooDefs.Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
com.twitter.distributedlog.DistributedLogManagerFactory factory =
new com.twitter.distributedlog.DistributedLogManagerFactory(confLocal, uri);
ExecutorService executorService = Executors.newCachedThreadPool();
String streamName = "check-and-repair-dl-namespace";
// Create completed log segments
DistributedLogManager dlm = factory.createDistributedLogManagerWithSharedClients(streamName);
DLMTestUtil.injectLogSegmentWithLastDLSN(dlm, confLocal, 1L, 1L, 10, false);
DLMTestUtil.injectLogSegmentWithLastDLSN(dlm, confLocal, 2L, 11L, 10, true);
DLMTestUtil.injectLogSegmentWithLastDLSN(dlm, confLocal, 3L, 21L, 10, false);
DLMTestUtil.injectLogSegmentWithLastDLSN(dlm, confLocal, 4L, 31L, 10, true);
// dryrun
BookKeeperClient bkc = getBookKeeperClient(factory);
DistributedLogAdmin.checkAndRepairDLNamespace(uri, factory,
new DryrunLogSegmentMetadataStoreUpdater(confLocal, getLogSegmentMetadataStore(factory)),
executorService, bkc, confLocal.getBKDigestPW(), false, false);
Map<Long, LogSegmentMetadata> segments = getLogSegments(dlm);
LOG.info("segments after drynrun {}", segments);
verifyLogSegment(segments, new DLSN(1L, 18L, 0L), 1L, 10, 10L);
verifyLogSegment(segments, new DLSN(2L, 16L, 0L), 2L, 9, 19L);
verifyLogSegment(segments, new DLSN(3L, 18L, 0L), 3L, 10, 30L);
verifyLogSegment(segments, new DLSN(4L, 16L, 0L), 4L, 9, 39L);
// check and repair
bkc = getBookKeeperClient(factory);
DistributedLogAdmin.checkAndRepairDLNamespace(uri, factory,
LogSegmentMetadataStoreUpdater.createMetadataUpdater(confLocal, getLogSegmentMetadataStore(factory)),
executorService, bkc, confLocal.getBKDigestPW(), false, false);
segments = getLogSegments(dlm);
LOG.info("segments after repair {}", segments);
verifyLogSegment(segments, new DLSN(1L, 18L, 0L), 1L, 10, 10L);
verifyLogSegment(segments, new DLSN(2L, 18L, 0L), 2L, 10, 20L);
verifyLogSegment(segments, new DLSN(3L, 18L, 0L), 3L, 10, 30L);
verifyLogSegment(segments, new DLSN(4L, 18L, 0L), 4L, 10, 40L);
dlm.close();
SchedulerUtils.shutdownScheduler(executorService, 5, TimeUnit.MINUTES);
factory.close();
}
}