Created
November 20, 2012 14:50
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Hazelcast issue #359 demo: Query returns stale data.
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import java.io.Serializable; | |
import java.util.Random; | |
import java.util.UUID; | |
import com.hazelcast.core.Hazelcast; | |
import com.hazelcast.core.IMap; | |
import com.hazelcast.query.EntryObject; | |
import com.hazelcast.query.Predicate; | |
import com.hazelcast.query.PredicateBuilder; | |
public class Demo { | |
public static void main(String[] args) throws Exception { | |
IMap<String, Blob> blobs = Hazelcast.getMap("blobs"); | |
String name = null; | |
for (int i = 0; i < 10; i++) { | |
name = UUID.randomUUID().toString(); | |
blobs.put(name, new Blob(name)); | |
} | |
int errorCount = 0; | |
Random random = new Random(); | |
System.out.println("*************** RUNNING ****************"); | |
while(errorCount < 100) { | |
long now = System.currentTimeMillis(); | |
Blob b = blobs.get(name); | |
b.setLastUpdateTime(now); | |
blobs.put(name,b); | |
Thread.sleep(random.nextInt(100) + 1); | |
EntryObject e = new PredicateBuilder().getEntryObject(); | |
Predicate<?,?> predicate = e.get("name").equal(name); | |
long queryTime = blobs.values(predicate).iterator().next().getLastUpdateTime(); | |
long getTime = blobs.get(name).getLastUpdateTime(); | |
if (queryTime != getTime) { | |
System.out.println("ERROR! Expected " + getTime + " Got " + queryTime); | |
errorCount++; | |
} | |
} | |
System.exit(errorCount); | |
} | |
} | |
class Blob implements Serializable { | |
private static final long serialVersionUID = 1L; | |
private String name; | |
private long lastUpdateTime; | |
public Blob(String name) { | |
this.name = name; | |
this.lastUpdateTime = System.currentTimeMillis(); | |
} | |
public String getName() { | |
return name; | |
} | |
public void setName(String name) { | |
this.name = name; | |
} | |
public long getLastUpdateTime() { | |
return lastUpdateTime; | |
} | |
public void setLastUpdateTime(long lastUpdateTime) { | |
this.lastUpdateTime = lastUpdateTime; | |
} | |
} |
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<hazelcast> | |
<properties> | |
<property name="hazelcast.version.check.enabled">false</property> | |
<!-- Reduce the 'hang' time during network failures between nodes --> | |
<property name="hazelcast.icmp.enabled">true</property> | |
</properties> | |
<group> | |
<name>hz-index-test</name> | |
<password>supersecret</password> | |
</group> | |
<network> | |
<port auto-increment="true">5701</port> | |
<join> | |
<multicast enabled="true"> | |
<multicast-group>224.2.2.3</multicast-group> | |
<multicast-port>54327</multicast-port> | |
</multicast> | |
</join> | |
<interfaces enabled="true"> | |
<interface>127.0.0.*</interface> | |
</interfaces> | |
</network> | |
<map name="blobs"> | |
<backup-count>1</backup-count> | |
<read-backup-data>false</read-backup-data> | |
<eviction-policy>NONE</eviction-policy> | |
<max-size>0</max-size> | |
<cache-value>false</cache-value> | |
<time-to-live-seconds>0</time-to-live-seconds> | |
<indexes> | |
<index ordered="false">name</index> | |
</indexes> | |
</map> | |
</hazelcast> |
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