[IGNITE-7699] BinaryMetadata exchange should not be triggered if metadata was not updated

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.5
• Assignee: Sergey Chugunov
• Reporter: Sergey Chugunov
• Created: 14/Feb/18 09:29
• Updated: 11/Apr/18 09:49
• Resolved: 11/Apr/18 09:49

Description

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.

Issue Links

• links to: GitHub Pull Request #3523