/**
* 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.zookeeper.test;
import java.io.File;
import java.util.List;
import java.util.LinkedList;
import org.apache.log4j.Logger;
import org.apache.zookeeper.CreateMode;
import org.apache.zookeeper.PortAssignment;
import org.apache.zookeeper.WatchedEvent;
import org.apache.zookeeper.Watcher;
import org.apache.zookeeper.ZKTestCase;
import org.apache.zookeeper.ZooKeeper;
import org.apache.zookeeper.ZooDefs.Ids;
import org.apache.zookeeper.server.quorum.Leader.Proposal;
import org.apache.zookeeper.server.ServerCnxnFactory;
import org.apache.zookeeper.server.SyncRequestProcessor;
import org.apache.zookeeper.server.ZooKeeperServer;
import org.apache.zookeeper.server.persistence.FileTxnSnapLog;
import org.junit.Assert;
import org.junit.Test;
/** After a replica starts, it should load commits in its committedLog list.
* This test checks if committedLog != 0 after replica restarted.
*/
public class RestoreCommittedLogTest extends ZKTestCase implements Watcher {
private static final Logger LOG = Logger.getLogger(RestoreCommittedLogTest.class);
private static String HOSTPORT = "127.0.0.1:" + PortAssignment.unique();
private static final int CONNECTION_TIMEOUT = 3000;
/**
* test the purge
* @throws Exception an exception might be thrown here
*/
@Test
public void testRestoreCommittedLog() throws Exception {
File tmpDir = ClientBase.createTmpDir();
ClientBase.setupTestEnv();
ZooKeeperServer zks = new ZooKeeperServer(tmpDir, tmpDir, 3000);
SyncRequestProcessor.setSnapCount(100);
final int PORT = Integer.parseInt(HOSTPORT.split(":")[1]);
ServerCnxnFactory f = ServerCnxnFactory.createFactory(PORT, -1);
f.startup(zks);
Assert.assertTrue("waiting for server being up ",
ClientBase.waitForServerUp(HOSTPORT,CONNECTION_TIMEOUT));
ZooKeeper zk = new ZooKeeper(HOSTPORT, CONNECTION_TIMEOUT, this);
try {
for (int i = 0; i< 2000; i++) {
zk.create("/invalidsnap-" + i, new byte[0], Ids.OPEN_ACL_UNSAFE,
CreateMode.PERSISTENT);
}
} finally {
zk.close();
}
f.shutdown();
Assert.assertTrue("waiting for server to shutdown",
ClientBase.waitForServerDown(HOSTPORT, CONNECTION_TIMEOUT));
// start server again
zks = new ZooKeeperServer(tmpDir, tmpDir, 3000);
zks.startdata();
LinkedList<Proposal> committedLog = zks.getZKDatabase().getCommittedLog();
int logsize = committedLog.size();
LOG.info("committedLog size = " + logsize);
Assert.assertTrue("log size != 0", (logsize != 0));
}
public void process(WatchedEvent event) {
// do nothing
}
}