I'm getting a bunch of WARN messages that look like:

[ReadWriteCache] An item was expired by the cache while it was locked (increase your cache timeout)

I'm trying to figure out what is causing this. The only thing I can think of is that during a single session/transaction the following is occurring:

1. session opened
2. item fetched
3. item updated
4. session flushed
5. same item updated
6. session flushed
7. session closed

The error is occurring after the session is closed, so I'm guessing what is happening is the item in the ReadWrite cache is invalidated after the first update/flush and the second update/flush before the session is closed is causing the warning. But the warning doesn't occur until after the session is closed, possibly because the cache is updated during close()?

-Randy

Did you ever figure out what was happening?

There are currently four separate messages in this forum on this topic without a single reply. As far as I have been able to tell, this message is innocuous and should probably be emitted at debug level, but it would be nice to get confirmation or a workaround from someone.

No, for now I am suppressing the warnings on org.hibernate.cache.ReadWriteCache so they don't pollute the log files.

I have the same problem. Is this a thread to my data, or does it just mean that the cache is not used as optimal as it could be used, if the timeout was increased? By the way: the timeout is set to 'eternal', so I can't increase anything there.