/**
* 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.activemq.usage;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.fail;
import java.io.File;
import org.apache.activemq.ConfigurationException;
import org.apache.activemq.broker.BrokerService;
import org.apache.activemq.store.PersistenceAdapter;
import org.apache.activemq.util.StoreUtil;
import org.apache.commons.io.FileUtils;
import org.junit.After;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.TemporaryFolder;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
*
* This test is for AMQ-5393 and will check that schedulePeriodForDiskLimitCheck
* properly schedules a task that will update disk limits if the amount of usable disk space drops
* because another process uses up disk space.
*
*/
public class PercentDiskUsageLimitTest {
protected static final Logger LOG = LoggerFactory
.getLogger(PercentDiskUsageLimitTest.class);
@Rule
public TemporaryFolder dataFileDir = new TemporaryFolder(new File("target"));
private BrokerService broker;
private PersistenceAdapter adapter;
private TempUsage tempUsage;
private StoreUsage storeUsage;
private File storeDir;
@Before
public void setUpBroker() throws Exception {
broker = new BrokerService();
broker.setPersistent(true);
broker.setDataDirectoryFile(dataFileDir.getRoot());
broker.setDeleteAllMessagesOnStartup(true);
adapter = broker.getPersistenceAdapter();
FileUtils.forceMkdir(adapter.getDirectory());
FileUtils.forceMkdir(broker.getTempDataStore().getDirectory());
storeDir = StoreUtil.findParentDirectory(adapter.getDirectory());
final SystemUsage systemUsage = broker.getSystemUsage();
tempUsage = systemUsage.getTempUsage();
storeUsage = systemUsage.getStoreUsage();
}
protected void startBroker() throws Exception {
broker.start();
broker.waitUntilStarted();
}
@After
public void stopBroker() throws Exception {
broker.stop();
broker.waitUntilStopped();
}
/**
*
*/
@Test(timeout=30000)
public void testDiskLimit() throws Exception {
int freePercent = getFreePercentage();
if (freePercent >= 2) {
int maxUsage = freePercent / 2;
//Set max usage to less than free space so we know that all space can be allocated
storeUsage.setPercentLimit(maxUsage);
tempUsage.setPercentLimit(maxUsage);
startBroker();
long diskLimit = broker.getSystemUsage().getStoreUsage().getLimit();
//assert the disk limit is the same as the max usage percent * total available space
//within 1 mb
assertEquals(diskLimit, storeDir.getTotalSpace() * maxUsage / 100, 1000000);
}
}
@Test(timeout=30000)
public void testDiskLimitOverMaxFree() throws Exception {
int freePercent = getFreePercentage();
if (freePercent > 1) {
storeUsage.setPercentLimit(freePercent + 1);
startBroker();
long diskLimit = broker.getSystemUsage().getStoreUsage().getLimit();
//assert the disk limit is the same as the usable space
//within 1 mb
assertEquals(diskLimit, storeDir.getUsableSpace(), 1000000);
}
}
@Test(timeout=30000)
public void testStartFailDiskLimitOverMaxFree() throws Exception {
broker.setAdjustUsageLimits(false);
int freePercent = getFreePercentage();
if (freePercent > 1) {
storeUsage.setPercentLimit(freePercent + 1);
try {
startBroker();
fail("Expect ex");
} catch (ConfigurationException expected) {}
}
}
@Test(timeout=30000)
public void testDiskLimitOver100Percent() throws Exception {
int freePercent = getFreePercentage();
if (freePercent > 1) {
storeUsage.setPercentLimit(110);
startBroker();
long diskLimit = broker.getSystemUsage().getStoreUsage().getLimit();
//assert the disk limit is the same as the available space
//within 1 mb
assertEquals(diskLimit, storeDir.getUsableSpace(), 1000000);
}
}
protected int getFreePercentage() {
File storeDir = StoreUtil.findParentDirectory(adapter.getDirectory());
return (int) (((double)storeDir.getUsableSpace() / storeDir.getTotalSpace()) * 100);
}
}