Question related to eviction
carlosgc Feb 28, 2013 12:03 PMHi I'm new in world infinispan, I have a couple of questions: When I put 50k nodes , the eviction start to evict some nodes even when maxEntries is 50k. I can check this for property of cache (size). I missed something, It's correct , eviction works this way?. I dont use passivation to store nodes. Any help how to do this . This is my file conf xml :
Hi again, I was seeing some examples with eviction, I made this simple test:
import java.io.BufferedReader;
import java.io.InputStreamReader;
import org.infinispan.Cache;
import org.infinispan.manager.DefaultCacheManager;
public class Demo {
public static void main(String[] args) throws Exception {
DefaultCacheManager m = new DefaultCacheManager("conf.xml");
//Cache<String, Person> cache = m.getCache();
Cache cache = m.getCache("evictionCache");
m.start();
cache.start();
Sleep("Put 100 nodos...");
Agregar(cache,1,100);
Sleep("Cantidad de nodos en cache");
System.out.println(cache.size());
for (int j=1;j<=100;j++)
{
Get(cache,j);
}
Sleep("Drop Cache ...");
cache.clear();
cache.stop();
m.stop();
}
public static void Agregar(Cache c,Integer i,Integer f)
{
for (int j=i;j<=f;j++)
{
c.put("key"+j , "dato"+j);
}
}
public static void Sleep(String b){
try{
BufferedReader leerEntrada = new BufferedReader(new InputStreamReader(System.in));
System.out.println(b);
System.out.println("Pulse una tecla para continuar ...");
String salida = leerEntrada.readLine();
} catch( Exception e) {
e.printStackTrace();
}
}
public static void Get(Cache c,Integer n)
{
try{
String d = (String)c.get("key"+n);
System.out.println( d );
}
catch(Exception e)
{
e.printStackTrace();
}
}
}
I set the following properties for eviction:
<eviction maxEntries="100" strategy="LRU" />
And to prevent that nodes never expire of the cache
<expiration maxIdle="-1" wakeUpInterval="-1" lifespan="-1" />
but when I put data into the 100 nodes, the eviction begins to eliminates some random amount of nodes.
Any help to prevent this from happening, thks.
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Demo.java.zip 740 bytes
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conf.xml 748 bytes