[jboss-jira] [JBoss JIRA] (JGRP-1783) FD_ALL2: new failure detection protocol without timestamps

[Bela Ban (JIRA)]

Bela Ban created JGRP-1783:
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             Summary: FD_ALL2: new failure detection protocol without timestamps
                 Key: JGRP-1783
                 URL: https://issues.jboss.org/browse/JGRP-1783
             Project: JGroups
          Issue Type: Feature Request
            Reporter: Bela Ban
            Assignee: Bela Ban
             Fix For: 3.5


System.currentTimeMillis() is used frequently in FD_ALL. Here's the design of a new protocol that does without it:
* boolean {{skip_heartbeat}}, {{heartbeat_received}} (per member)
* Sender: when sending a multicast message, set {{skip_heartbeat}} to true if not true
* Sender: send a (multicast) heartbeat every {{interval}} ms unless {{skip_heartbeat}} is true (set it to false if true)
* Receiver: when receiving a message or heartbeat from sender P, set P's {{heartbeat_received}} to true (CAS operation)
* Receiver: check heartbeats table every {{timeout}} ms. Suspect any member P whose {{heartbeat_received}} is false


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