Marc or any other JBoss Guru,
That was the problem, but took me a while to configure it, because of lack
of documentation
and or examples on how to configure the LRU enterprise Context Cache Policy.
My next question is...
What is a good optimal setting for the LRU Cache? I have about 40 entity
beans deployed. My settings are below. Should I be asking Simone Boredet
since thats who implemented the plugin?
<container-configurations>
<container-configuration>
<container-name>K2</container-name>
<call-logging>false</call-logging>
<container-invoker>org.jboss.ejb.plugins.jrmp13.server.JRMPContainerInvoker<
/container-invoker>
<instance-pool>org.jboss.ejb.plugins.EntityInstancePool</instance-pool>
<instance-cache>org.jboss.ejb.plugins.EntityInstanceCache</instance-cache>
<persistence-manager>org.jboss.ejb.plugins.BMPPersistenceManager</persistenc
e-manager>
<transaction-manager>org.jboss.tm.TxManager</transaction-manager>
<container-invoker-conf>
<RMIObjectPort>4444</RMIObjectPort>
<Optimized>True</Optimized>
</container-invoker-conf>
<container-cache-conf>
<cache-policy>org.jboss.ejb.plugins.LRUEnterpriseContextCachePolicy</cache-p
olicy>
<cache-policy-conf>
<min-capacity>10</min-capacity>
<max-capacity>50</max-capacity>
<overager-period>10</overager-period>
<resizer-period>10</resizer-period>
<max-bean-age>5</max-bean-age>
<max-cache-miss-period>10</max-cache-miss-period>
<min-cache-miss-period>10</min-cache-miss-period>
<cache-load-factor>.3</cache-load-factor>
</cache-policy-conf>
</container-cache-conf>
<container-pool-conf>
<MaximumSize>100</MaximumSize>
<MinimumSize>10</MinimumSize>
</container-pool-conf>
<commit-option>A</commit-option>
</container-configuration>
</container-configurations>
-----Original Message-----
From: marc fleury [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, October 24, 2000 5:52 PM
To: jBoss
Subject: RE: [jBoss-User] Out of memory Bug STILL??
hey are you using a passivating cache?
if not everyone is in memory...
marc
|-----Original Message-----
|From: [EMAIL PROTECTED]
|[mailto:[EMAIL PROTECTED]]On Behalf Of Hayden, Ty
|Sent: Tuesday, October 24, 2000 2:16 PM
|To: 'jBoss'
|Subject: [jBoss-User] Out of memory Bug STILL??
|
|
|
|Hey Everyone,
|
|I just upgraded to Beta-Prod 3 and still having Out of memory exceptions on
|the server side. To test to see if I didn't have memory leaks in my own
|beans, I completely scraped those and created a dummy Entity Bean
|- attached
|below - Using BMP but just ignoring the ejbSaves / ejbCreate and not
|persisting anything. If I create upwards of 150,000 objects from clients
|and I get OOM on the server i.e.:
|
|[TestingHome] --Create--167657
|[TestingHome] TRANSACTION ROLLBACK EXCEPTION:null; nested exception is:
| java.lang.OutOfMemoryError
|[TestingHome] java.lang.OutOfMemoryError
|[TestingHome] <<no stack trace available>>
|
|
|
|My bean has a sample main client build in so you can see what I am doing...
|Is there a setting somewhere on the max number of cached objects???
|
|
|public class TestingBean implements EntityBean {
|
| public int cnt = 0;
|
| /**
| * Retrieve id
| */
| public int getCount() throws RemoteException {
| return (int)id;
| }
|
| /**
| * Get string test
| *
| * @parm s - string to retrieve
| */
| public String getStr() throws RemoteException {
| return id+"";
| }
|
|
| long id = 0;
|
| static long _cnt = 1000;
| public String ejbCreate() throws RemoteException {
| id = _cnt++;
| System.out.println("--Create--" + id);
| return id+"";
| }
| public void ejbPostCreate() throws RemoteException {
| System.out.println("--PostCreate--" + id);
| }
|
| public void ejbActivate() throws RemoteException {
| System.out.println("--Activate--" + id);
| }
| public void ejbPassivate() throws RemoteException {
| System.out.println("--Passivate--" + id);
| }
| public void ejbRemove() throws RemoteException {
| System.out.println("--Remove--" + id);
| }
|
| public void ejbLoad() throws RemoteException {
| String pk = (String) ((EntityContext)context).getPrimaryKey();
| System.out.println("--Load--" + pk);
| id = (new Long(pk)).longValue();
| }
| public void ejbStore() throws RemoteException {
| String pk = (String) ((EntityContext)context).getPrimaryKey();
| System.out.println("--Store--" + pk);
| id = (new Long(pk)).longValue();
| }
| transient private EntityContext context;
|
| public void setEntityContext(EntityContext ctx) throws
|RemoteException {
| context = ctx;
| }
|
| public EntityContext getEntityContext() throws RemoteException {
| return context;
| }
| public void unsetEntityContext() {
| context = null;
| }
| public String ejbFindByPrimaryKey(String key) throws
|ObjectNotFoundException, FinderException {
| return key;
| }
| public Enumeration ejbFindAllObjects() throws ObjectNotFoundException,
|FinderException {
| return (new Vector()).elements();
| }
| public Enumeration ejbFindByQuery(String q) throws
|ObjectNotFoundException, FinderException {
| return (new Vector()).elements();
| }
|
|
| public static Properties getBeanProps() {
| Properties props = new Properties();
| try
| InputStream fin;
|
| fin = new
feredInputStream(
|
|ClassLoader.getSystemClassLoader().getSystemResourceAsStream("BeanC
|onfig.pro
|ps"));
|
| props.load( fin );
| fin.close();
| } catch (Exception e) {
| System.out.println(e);
| }
| return props;
| }
|
| public static void main(String args[]){
| try {
| Hashtable env = new Hashtable();
| Properties p = getBeanProps();
| env.put("java.naming.provider.
url","localhost:1099");
| env.put("java.naming.factory.initial",
|p.getProperty("java.naming.factory.initial",""));
| env.put("java.naming.factory.url.pkgs",
|p.getProperty("java.naming.factory.url.pkgs","") );
| Context initialContext = new InitialContext(env);
|
| TestingHome server = (TestingHome)
|initialContext.lookup("TestingHome");
| int max = 5000;
| try {
| max = (new Integer( args[0] )).intValue();
| } catch (Exception e) {}
|
| Vector v = new Vector();
| System.out.println("Creating " + max + " Test beans.");
| for(int i=0;i<max;i++) {
| v.add( server.create().getPrimaryKey() );
| }
| System.out.println("Finding " + max + " Test beans.");
| for(int i=0;i<max;i++) {
| server.findByPrimaryKey( (String) v.elementAt(i) );
| }
|
| System.out.println("Executing method " + max + " Test beans.");
| for(int i=0;i<max;i++) {
| server.findByPrimaryKey( (String) v.elementAt(i) ).getCount();
| }
|
| System.out.println("Removing " + max + " Test beans.");
| for(int i=0;i<max;i++) {
| server.findByPrimaryKey( (String) v.elementAt(i) ).remove();
| }
| } catch (Exception e2) {
| System.out.println(e2);
| }
|
| }
|}
|
|
|
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