anonymous wrote : When our application decides to write to the cache, it needs 
to check what's already at the node that's there, and then depending on what it 
finds, it may choose to put the new object in the cache in the same node, or it 
may decide not to. It's important that a different thread doesn't change the 
object at that key in that node in between the read and the write. Locking 
behavior is what we want - the other thread should wait until the first thread 
is done before writing.
  | 
you should open a transaction (REPETABLE_READ)  which would only commit after 
the write. This will assure that the read data won't be modified by other 
thread until commit/rollback takes place.

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