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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.geode.internal.cache;
import org.apache.geode.cache.*;
import org.apache.geode.distributed.DistributedSystem;
import org.apache.geode.internal.Assert;
import org.apache.geode.internal.cache.lru.EnableLRU;
import org.apache.geode.internal.cache.lru.LRUClockNode;
import org.apache.geode.internal.cache.lru.NewLRUClockHand;
import org.apache.geode.test.junit.categories.IntegrationTest;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import java.io.File;
import java.util.Properties;
import static org.apache.geode.distributed.ConfigurationProperties.*;
import static org.junit.Assert.*;
/**
* Test for simluating the deadLock condition as in bug#37244
*
*
*/
@Category(IntegrationTest.class)
public class Bug37244JUnitTest {
private static Cache cache = null;
private static DistributedSystem distributedSystem = null;
protected static String regionName = "TestRegion";
/**
* Method for intializing the VM
*/
private static void initializeVM() throws Exception {
Properties props = new Properties();
props.setProperty(MCAST_PORT, "0");
props.setProperty(LOCATORS, "");
props.setProperty(LOG_LEVEL, "info"); // to keep diskPerf logs smaller
distributedSystem = DistributedSystem.connect(props);
cache = CacheFactory.create(distributedSystem);
assertNotNull(cache);
DiskStoreFactory dsf = cache.createDiskStoreFactory();
AttributesFactory factory = new AttributesFactory();
factory.setScope(Scope.DISTRIBUTED_ACK);
File dir = new File("testingDirectoryDefault");
dir.mkdir();
dir.deleteOnExit();
File[] dirs = {dir};
dsf.setDiskDirsAndSizes(dirs, new int[] {Integer.MAX_VALUE});
dsf.setAutoCompact(false);
DirectoryHolder.SET_DIRECTORY_SIZE_IN_BYTES_FOR_TESTING_PURPOSES = true;
try {
factory.setDiskStoreName(dsf.create(regionName).getName());
} finally {
DirectoryHolder.SET_DIRECTORY_SIZE_IN_BYTES_FOR_TESTING_PURPOSES = false;
}
factory.setDiskSynchronous(true);
factory.setDataPolicy(DataPolicy.PERSISTENT_REPLICATE);
factory.setEvictionAttributes(
EvictionAttributes.createLRUEntryAttributes(1, EvictionAction.OVERFLOW_TO_DISK));
RegionAttributes attr = factory.create();
DistributedRegion distRegion = new DistributedRegion(regionName, attr, null,
(GemFireCacheImpl) cache, new InternalRegionArguments().setDestroyLockFlag(true)
.setRecreateFlag(false).setSnapshotInputStream(null).setImageTarget(null));
assertNotNull(distRegion);
((AbstractLRURegionMap) distRegion.entries)._setLruList((new TestLRUClockHand(distRegion,
((AbstractLRURegionMap) distRegion.entries)._getCCHelper())));
((GemFireCacheImpl) cache).createVMRegion(regionName, attr,
new InternalRegionArguments().setInternalMetaRegion(distRegion).setDestroyLockFlag(true)
.setSnapshotInputStream(null).setImageTarget(null));
}
@Test
public void testPutWhileclear() {
try {
initializeVM();
assertNotNull(cache);
Region rgn = cache.getRegion(regionName);
assertNotNull(rgn);
// put two entries into the region
for (int i = 0; i < 2; i++) {
rgn.put(new Long(i), new Long(i));
}
// get an entry back
Long value = (Long) rgn.get(new Long(0));
// check for entry value
assertTrue("Test failed ", value.equals(new Long(0)));
} catch (Exception ex) {
ex.printStackTrace();
fail("Test failed");
} finally {
assertNotNull(cache);
Region rgn = cache.getRegion(regionName);
assertNotNull(rgn);
rgn.localDestroyRegion();
cache.close();
}
}
/**
* Test Implementation class of NewLRUClockHand for bug37244.
*
*
*
*/
static public class TestLRUClockHand extends NewLRUClockHand {
protected static Object mutex = new Object();
// private String regionName = "TestRegion";
protected static boolean EXECUTE_AFTER_GET_CALL = false;
/**
* Constructor
*
* @param region
* @param ccHelper
*/
public TestLRUClockHand(Region region, EnableLRU ccHelper) {
super(region, ccHelper, new InternalRegionArguments());
}
/**
* Overridden getLRUEntry method
*/
public LRUClockNode getLRUEntry() {
if (EXECUTE_AFTER_GET_CALL) {
Cache cache = CacheFactory.getAnyInstance();
Assert.assertTrue(cache != null);
LocalRegion region = (LocalRegion) cache.getRegion(regionName);
Assert.assertTrue(region != null);
Thread clearThread = new Thread(new clearThread(region));
clearThread.start();
try {
synchronized (mutex) {
mutex.wait(10000);
}
} catch (InterruptedException ie) {
if (cache.getLogger().fineEnabled()) {
cache.getLogger().fine("TestLRUClockHand#getLRUEntry Got an interrupted Exception");
}
fail("interrupted");
}
}
LRUClockNode aNode = super.getLRUEntry();
return aNode;
}
/**
*
* clearThread
*
*/
protected static class clearThread implements Runnable {
LocalRegion region = null;
clearThread(LocalRegion rgn) {
super();
this.region = rgn;
}
public void run() {
Cache cache = CacheFactory.getAnyInstance();
region.getDiskRegion().acquireWriteLock();
try {
Thread putThread = new Thread(new putThread(region));
putThread.start();
Thread.sleep(2000);
synchronized (mutex) {
mutex.notify();
}
Thread.sleep(5000);
region.clear();
} catch (InterruptedException e) {
if (cache.getLogger().fineEnabled()) {
cache.getLogger().fine("TestLRUClockHand#clearThread Got an interrupted Exception");
}
fail("interrupted");
} catch (Exception ie) {
fail("TestLRUClockHand#clearThread Got an Exception");
} finally {
region.getDiskRegion().releaseWriteLock();
}
}
}
/**
*
* putThread
*
*/
protected static class putThread implements Runnable {
LocalRegion region = null;
putThread(LocalRegion rgn) {
super();
this.region = rgn;
}
public void run() {
region.put(new Long(1), "2");
}
}
}
}