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[CDO] cdoPrefetch() Timeout [message #636192]

Fri, 29 October 2010 14:53

Eclipse User

Originally posted by: info.dav85.de

Hello everyone,

i want to use CDOObject.cdoPrefetch(). For models with a large count of
objects i got a TimeoutException. Whats happen with this exception? Is
there any configuration that must be set to use this function or can i
raise the timeout?

I use CDO 4.0 with a DBStore (MySQL) and a horizontalAuditWithRanges
mapping.

Here is the StackTrace:

org.eclipse.emf.cdo.common.util.TransportException:
java.util.concurrent.TimeoutException
at
org.eclipse.emf.cdo.internal.net4j.protocol.CDOClientProtoco l.send(CDOClientProtocol.java:404)
at
org.eclipse.emf.cdo.internal.net4j.protocol.CDOClientProtoco l.send(CDOClientProtocol.java:429)
at
org.eclipse.emf.cdo.internal.net4j.protocol.CDOClientProtoco l.loadRevisions(CDOClientProtocol.java:159)
at
org.eclipse.emf.cdo.internal.common.revision.CDORevisionMana gerImpl.loadRevisions(CDORevisionManagerImpl.java:352)
at
org.eclipse.emf.cdo.internal.common.revision.CDORevisionMana gerImpl.getRevisions(CDORevisionManagerImpl.java:263)
at
org.eclipse.emf.cdo.internal.common.revision.CDORevisionMana gerImpl.getRevision(CDORevisionManagerImpl.java:246)
at
org.eclipse.emf.cdo.internal.common.revision.CDORevisionMana gerImpl.getRevision(CDORevisionManagerImpl.java:239)
at
org.eclipse.emf.cdo.internal.common.revision.CDORevisionMana gerImpl.getRevision(CDORevisionManagerImpl.java:1)
at
org.eclipse.emf.internal.cdo.view.CDOViewImpl.prefetchRevisi ons(CDOViewImpl.java:361)
at
org.eclipse.emf.internal.cdo.view.CDOViewImpl.prefetchRevisi ons(CDOViewImpl.java:355)
at
org.eclipse.emf.internal.cdo.CDOObjectImpl.cdoPrefetch(CDOOb jectImpl.java:159)

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Re: [CDO] cdoPrefetch() Timeout [message #636235 is a reply to message #636192]

Fri, 29 October 2010 19:22

Eike Stepper

Messages: 6498
Registered: July 2009

Senior Member

Hi David,

For the cdoPrefetch() method I reused the traditional LoadRevisionRequest. It seems that I did not properly consider that the processing characteristics of the new use case are entirely different. Please file a bugzilla and I can try to make this request a RequestWitMonitoring (similar to https://bugs.eclipse.org/bugs/show_bug.cgi?id=328595 ). I can not promise that I find timebefore the summit next week...

Cheers
/Eike

----
http://www.esc-net.de
http://thegordian.blogspot.com
http://twitter.com/eikestepper

Am 29.10.2010 16:53, schrieb David Hein:
> Hello everyone,
>
> i want to use CDOObject.cdoPrefetch(). For models with a large count of objects i got a TimeoutException. Whats happen with this exception? Is there any configuration that must be set to use this function or can i raise the timeout?
>
> I use CDO 4.0 with a DBStore (MySQL) and a horizontalAuditWithRanges mapping.
>
> Here is the StackTrace:
>
> org.eclipse.emf.cdo.common.util.TransportException: java.util.concurrent.TimeoutException
> at org.eclipse.emf.cdo.internal.net4j.protocol.CDOClientProtoco l.send(CDOClientProtocol.java:404)
> at org.eclipse.emf.cdo.internal.net4j.protocol.CDOClientProtoco l.send(CDOClientProtocol.java:429)
> at org.eclipse.emf.cdo.internal.net4j.protocol.CDOClientProtoco l.loadRevisions(CDOClientProtocol.java:159)
> at org.eclipse.emf.cdo.internal.common.revision.CDORevisionMana gerImpl.loadRevisions(CDORevisionManagerImpl.java:352)
> at org.eclipse.emf.cdo.internal.common.revision.CDORevisionMana gerImpl.getRevisions(CDORevisionManagerImpl.java:263)
> at org.eclipse.emf.cdo.internal.common.revision.CDORevisionMana gerImpl.getRevision(CDORevisionManagerImpl.java:246)
> at org.eclipse.emf.cdo.internal.common.revision.CDORevisionMana gerImpl.getRevision(CDORevisionManagerImpl.java:239)
> at org.eclipse.emf.cdo.internal.common.revision.CDORevisionMana gerImpl.getRevision(CDORevisionManagerImpl.java:1)
> at org.eclipse.emf.internal.cdo.view.CDOViewImpl.prefetchRevisi ons(CDOViewImpl.java:361)
> at org.eclipse.emf.internal.cdo.view.CDOViewImpl.prefetchRevisi ons(CDOViewImpl.java:355)
> at org.eclipse.emf.internal.cdo.CDOObjectImpl.cdoPrefetch(CDOOb jectImpl.java:159)

Cheers
/Eike

----
http://www.esc-net.de
http://thegordian.blogspot.com
http://twitter.com/eikestepper

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