Sergey Chugunov created IGNITE-7699:

             Summary: BinaryMetadata exchange should not be triggered if 
metadata was not updated
                 Key: IGNITE-7699
             Project: Ignite
          Issue Type: Improvement
            Reporter: Sergey Chugunov
            Assignee: Sergey Chugunov
             Fix For: 2.5

It was found that DiscoveryCustomEvent-based implementation of BinaryMetadata 
exchange protocol triggers propose-accept process even when it is not needed.

In some situations BinaryObjects may be built with exactly the same scheme many 
times, and registering of BinaryMetatada only once is enough.
However current implementation executes expensive propose-accept process for 
each *addMeta* request even if requesting meta is the same.

Implementation should be improved so that prop-ack process is executed only if 
BinaryMetadata really changed.

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