package com.hazelcast.client.map;
import com.hazelcast.client.HazelcastClient;
import com.hazelcast.client.config.ClientConfig;
import com.hazelcast.config.GroupConfig;
import com.hazelcast.core.Hazelcast;
import com.hazelcast.core.HazelcastInstance;
import com.hazelcast.core.IMap;
import com.hazelcast.test.HazelcastSerialClassRunner;
import com.hazelcast.test.HazelcastTestSupport;
import com.hazelcast.test.annotation.NightlyTest;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import org.junit.runner.RunWith;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicInteger;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
//https://github.com/hazelcast/hazelcast/issues/2138
@RunWith(HazelcastSerialClassRunner.class)
@Category(NightlyTest.class)
public class MapMemoryUsageStressTest extends HazelcastTestSupport {
private HazelcastInstance client;
@Before
public void launchHazelcastServer() {
Hazelcast.newHazelcastInstance();
ClientConfig config = new ClientConfig();
config.setGroupConfig(new GroupConfig("dev", "dev-pass"));
config.getNetworkConfig().addAddress("127.0.0.1");
client = HazelcastClient.newHazelcastClient(config);
}
@After
public void shutdownHazelcastServer() {
Hazelcast.shutdownAll();
}
@Test
public void voidCacher() throws Exception {
final AtomicInteger counter = new AtomicInteger(200000);
final AtomicInteger errors = new AtomicInteger();
Thread[] threads = new Thread[8];
for (int k = 0; k < threads.length; k++) {
StressThread stressThread = new StressThread(counter, errors);
threads[k] = stressThread;
stressThread.start();
}
assertJoinable(TimeUnit.MINUTES.toSeconds(10), threads);
assertEquals(0, errors.get());
assertTrue(counter.get() <= 0);
}
private class StressThread extends Thread {
private final AtomicInteger counter;
private final AtomicInteger errors;
public StressThread(AtomicInteger counter, AtomicInteger errors) {
this.counter = counter;
this.errors = errors;
}
public void run() {
try {
for(;;){
int index = counter.decrementAndGet();
if(index<=0){
return;
}
IMap<Object, Object> map = client.getMap("juka" + index);
map.set("aaaa", "bbbb");
map.clear();
map.destroy();
if(index % 1000 == 0){
System.out.println("At: "+index);
}
}
} catch (Throwable t) {
errors.incrementAndGet();
t.printStackTrace();
}
}
}
}