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willemt / raft

C implementation of the Raft Consensus protocol, BSD licensed
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Empty AppendEntries requests are sent during non-idle periods #88

Open freeekanayaka opened 6 years ago

freeekanayaka commented 6 years ago

The current implementation unconditionally sends empty an AppendEntries request every time the heartbeat interval (request_timeout) expires.

However sending empty/heartbeat AppendEntries is only required if no "actual" non-AppendEntries request was sent recently (where here "recently" essentially means within request_timeout milliseconds).