Thanks for the testing efforts.

Similar testing efforts worked great with Oracle as well -- up until we actually abruptly powered down a machine or dropped it off the network.

You make...

I'm talking about row locks.

As for row locks protecting against changes to data, yes, of course they do that.

They can also be a basis for distributed negotiation, of course. ...

The entire purpose of the locks in question is to prevent concurrency of some critical operations in clients -- and to *quickly* notice when a lock is released. These...

What if a client grabs a lock, goes "out to lunch" holding the lock but not making further queries for a while -- and during this time the client abruptly...