Re: "Item cannot be saved because it has been modified externally"

[Craig Ganoe]

What version of Jackrabbit are you using? If it's a significantly older version, I'd suggest upgrading to the latest possible. We had this issue, and upgrading eliminated it.

On Aug 16, 2011, at 6:12 AM, Will Scheidegger wrote:

Dear Jackrabbit experts




        at org.apache.jackrabbit.core.ItemImpl.save(ItemImpl.java:942)
        at org.apache.jackrabbit.core.SessionImpl.save(SessionImpl.java:915)

....





More info:
- We're working with OCM

- The code which does that looks like this:


                   ocm.save();

Any help is warmly appreciated!

-will

I'm facing a strange problem where sometimes we get an InvalidStateException with an error message like this: javax.jcr.InvalidItemStateException: Item cannot be saved because it has been modified externally: node / org.apache.jackrabbit.ocm.exception.ObjectContentManagerException: Cannot persist current session changes.; nested exception is javax.jcr.InvalidItemStateException: Item cannot be saved because it has been modified externally: node / javax.jcr.InvalidItemStateException: Item cannot be saved because it has been modified externally: node / at org.apache.jackrabbit.core.ItemImpl.getTransientStates(ItemImpl.java: 246) at org .apache .jackrabbit .ocm .manager .impl.ObjectContentManagerImpl.save(ObjectContentManagerImpl.java: 1070) The node which cannot be saved varies. Here it seems to be the root node but it can be next to anything. Now my uneducated guess is that we have a concurrent access problem (several requests of our webapplication trying to update the same node or a node in the same path or ...?). If you agree with me would you mind giving me some pointers on how to resolve this problem properly? Of course I cannot lock a node forever. From when to when do I have to lock it? - The error occurs when we're trying to persist a bean to the repository. ObjectContentManager ocm = getObjectContentManager("data"); // gets the ObjectContentMananger for the "data" repository ocm.update(cardOrder); // cardOrder is my bean which needs to be persisted. It already exists in the repository

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