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We are using spring to manage our transactions and using Hibernate with it. We are also using a pessimistic retrier that will retry a method is there is a deadlock error.

The problem I think I am...

I've been looking into this further. What I see is that there are maybe 5 transactions running at the same time. Sometimes 3 or 4 of these transactions will try to update the ACL tables at the same...

We do use our own custom code to set permissions on an object, but in the end we use, what I could see a common way of setting the permissions on objects that I've seen elsewhere.

In...

What I am noticing is that most of our updateACL methods take less than half a second. When the deadlock comes up its taking more than a second which is probably why we are getting deadlocks.
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We are getting deadlock errors when using the mutable ACL Method UpdateACL. Anyone else having this trouble or know how to avoid this.

GrantPermission is our custom function and right after that...