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/**
* 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.IOException;
import org.apache.zookeeper.CreateMode;
import org.apache.zookeeper.KeeperException;
import org.apache.zookeeper.Quotas;
import org.apache.zookeeper.StatsTrack;
import org.apache.zookeeper.ZooKeeper;
import org.apache.zookeeper.ZooDefs.Ids;
import org.apache.zookeeper.cli.MalformedPathException;
import org.apache.zookeeper.cli.SetQuotaCommand;
import org.apache.zookeeper.data.Stat;
import org.apache.zookeeper.server.ZooKeeperServer;
import org.junit.Assert;
import org.junit.Test;
public class ZooKeeperQuotaTest extends ClientBase {
@Test
public void testQuota() throws IOException,
InterruptedException, KeeperException, Exception {
final ZooKeeper zk = createClient();
final String path = "/a/b/v";
// making sure setdata works on /
zk.setData("/", "some".getBytes(), -1);
zk.create("/a", "some".getBytes(), Ids.OPEN_ACL_UNSAFE,
CreateMode.PERSISTENT);
zk.create("/a/b", "some".getBytes(), Ids.OPEN_ACL_UNSAFE,
CreateMode.PERSISTENT);
zk.create("/a/b/v", "some".getBytes(), Ids.OPEN_ACL_UNSAFE,
CreateMode.PERSISTENT);
zk.create("/a/b/v/d", "some".getBytes(), Ids.OPEN_ACL_UNSAFE,
CreateMode.PERSISTENT);
SetQuotaCommand.createQuota(zk, path, 5L, 10);
// see if its set
String absolutePath = Quotas.quotaZookeeper + path + "/" + Quotas.limitNode;
byte[] data = zk.getData(absolutePath, false, new Stat());
StatsTrack st = new StatsTrack(new String(data));
Assert.assertTrue("bytes are set", st.getBytes() == 5L);
Assert.assertTrue("num count is set", st.getCount() == 10);
String statPath = Quotas.quotaZookeeper + path + "/" + Quotas.statNode;
byte[] qdata = zk.getData(statPath, false, new Stat());
StatsTrack qst = new StatsTrack(new String(qdata));
Assert.assertTrue("bytes are set", qst.getBytes() == 8L);
Assert.assertTrue("count is set", qst.getCount() == 2);
//force server to restart and load from snapshot, not txn log
stopServer();
startServer();
stopServer();
startServer();
ZooKeeperServer server = serverFactory.getZooKeeperServer();
Assert.assertNotNull("Quota is still set",
server.getZKDatabase().getDataTree().getMaxPrefixWithQuota(path) != null);
}
@Test
public void testSetQuota() throws IOException,
InterruptedException, KeeperException, MalformedPathException {
final ZooKeeper zk = createClient();
String path = "/c1";
String nodeData = "foo";
zk.create(path, nodeData.getBytes(), Ids.OPEN_ACL_UNSAFE,
CreateMode.PERSISTENT);
int count = 10;
long bytes = 5L;
SetQuotaCommand.createQuota(zk, path, bytes, count);
//check the limit
String absoluteLimitPath = Quotas.quotaZookeeper + path + "/" + Quotas.limitNode;
byte[] data = zk.getData(absoluteLimitPath, false, null);
StatsTrack st = new StatsTrack(new String(data));
Assert.assertEquals(bytes, st.getBytes());
Assert.assertEquals(count, st.getCount());
//check the stats
String absoluteStatPath = Quotas.quotaZookeeper + path + "/" + Quotas.statNode;
data = zk.getData(absoluteStatPath, false, null);
st = new StatsTrack(new String(data));
Assert.assertEquals(nodeData.length(), st.getBytes());
Assert.assertEquals(1, st.getCount());
//create another node
String path2 = "/c1/c2";
String nodeData2 = "bar";
zk.create(path2, nodeData2.getBytes(), Ids.OPEN_ACL_UNSAFE,
CreateMode.PERSISTENT);
absoluteStatPath = Quotas.quotaZookeeper + path + "/" + Quotas.statNode;
data = zk.getData(absoluteStatPath, false, null);
st = new StatsTrack(new String(data));
//check the stats
Assert.assertEquals(nodeData.length() + nodeData2.length(), st.getBytes());
Assert.assertEquals(2, st.getCount());
}
@Test
public void testSetQuotaWhenSetQuotaOnParentOrChildPath() throws IOException,
InterruptedException, KeeperException, MalformedPathException {
final ZooKeeper zk = createClient();
zk.create("/c1", "some".getBytes(), Ids.OPEN_ACL_UNSAFE,
CreateMode.PERSISTENT);
zk.create("/c1/c2", "some".getBytes(), Ids.OPEN_ACL_UNSAFE,
CreateMode.PERSISTENT);
zk.create("/c1/c2/c3", "some".getBytes(), Ids.OPEN_ACL_UNSAFE,
CreateMode.PERSISTENT);
zk.create("/c1/c2/c3/c4", "some".getBytes(), Ids.OPEN_ACL_UNSAFE,
CreateMode.PERSISTENT);
zk.create("/c1/c2/c3/c4/c5", "some".getBytes(), Ids.OPEN_ACL_UNSAFE,
CreateMode.PERSISTENT);
//set the quota on the path:/c1/c2/c3
SetQuotaCommand.createQuota(zk, "/c1/c2/c3", 5L, 10);
try {
SetQuotaCommand.createQuota(zk, "/c1", 5L, 10);
} catch (IllegalArgumentException e) {
Assert.assertEquals("/c1 has a child /c1/c2/c3 which has a quota", e.getMessage());
}
try {
SetQuotaCommand.createQuota(zk, "/c1/c2/c3/c4/c5", 5L, 10);
} catch (IllegalArgumentException e) {
Assert.assertEquals("/c1/c2/c3/c4/c5 has a parent /c1/c2/c3 which has a quota", e.getMessage());
}
}
}
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