Hi,
I had the same promlem when I was using RC3. Try to move to RC4. What
container are you using?
Simone
----- Original Message -----
From: "Andrew May" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Friday, March 28, 2003 11:49 AM
Subject: [JBoss-user] CMR Error under load
> I'm getting this CMR error when I load test our system:
>
> java.lang.IllegalStateException: The iterator of a CMR collection may only
be used within
> the transction in which it was created
> at
>
org.jboss.ejb.plugins.cmp.jdbc.bridge.RelationSet$1.verifyIteratorIsValid(Re
lationSet.java:309)
> at
org.jboss.ejb.plugins.cmp.jdbc.bridge.RelationSet$1.hasNext(RelationSet.java
:269)
> at
com.ingenta.acs.core.ejb.IdentityBean.getPropertyMap(IdentityBean.java:286)
>
> Using both JBoss 3.0.3 and 3.2.0RC3 on Solaris with Sun's JDK 1.3.1 or
1.4.1.
>
> We have an Identity entity and an IdentityProperty entity with a 1-M CMR
relationship. For
> convenince there's a method on the Identity bean that gets the related
IdentityProperties,
> iterates through the CMR collection and puts the values in a Map:
>
> public Map getPropertyMap()
> {
> Map result = new HashMap();
> Set properties = getIdentityProperties();
> for (Iterator i = properties.iterator(); i.hasNext(); )
> {
> IdentityPropertyLocal p = (IdentityPropertyLocal) i.next();
> result.put(p.getName(), p.getValue());
> }
>
> return result;
> }
>
> This method is marked as transaction "Required" - the bean is marked
"Supports" and the
> set* methods are marked "Mandatory".
>
> In jboss.xml all get* methods have been declared read-only:
>
> <entity>
> <ejb-name>Identity</ejb-name>
> <local-jndi-name>acs/core/Identity</local-jndi-name>
> <method-attributes>
> <method>
> <method-name>get*</method-name>
> <read-only>true</read-only>
> </method>
> </method-attributes>
> </entity>
>
> When a single person is using the application this error never occurs, but
when I start
> load testing this error keeps occurring with relatively low load. We could
never use it in
> production with this number of errors.
>
> This bean is queried every time a new user is authenticated, so it's a
potential
> bottleneck - which is why it's been marked read-only for get*. Without
being marked
> read-only everything gets very slow (starts to take about 20 seconds to
authenticate a
> user and show our home page) and all the jbossweb threads (max 100) get
used up.
>
> When I originally tested (with JBoss 3.0.1 I think) a while ago this error
was very rare,
> but with 3.0.3 and 3.2.0RC3 it's a lot more common (admittedly there have
been application
> code changes since then).
>
> Please help!
>
> Thanks,
>
> Andrew
>
>
>
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