[jboss-jira] [JBoss JIRA] (JGRP-2451) FD_ALL3: improvements over FD_ALL

[Bela Ban (Jira)]

    [ https://issues.redhat.com/browse/JGRP-2451?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13989151#comment-13989151 ] 

Bela Ban commented on JGRP-2451:
--------------------------------

[~dan.berindei]This sound like a good solution, but I guess you meant timeout=60s in your example, didn't you?

> FD_ALL3: improvements over FD_ALL
> ---------------------------------
>
>                 Key: JGRP-2451
>                 URL: https://issues.redhat.com/browse/JGRP-2451
>             Project: JGroups
>          Issue Type: Feature Request
>            Reporter: Bela Ban
>            Assignee: Bela Ban
>            Priority: Major
>             Fix For: 5.0, 4.2.1
>
>
> Improvements to {{FD_ALL}}. 
> * Messages should count as heartbeats ({{msg_counts_as_heartbeat}} should be *default*, and as such, deprecated/removed).
> * When a multicast message is sent before {{interval}} elapsed, we suppress sending a heartbeat
> It is crucial that setting the  in the map is quick, especially since this is done on every message. This should not be an issue, as we fetch the current time from the time service, which does *not* call {{System.nanoTime()}} or {{System.currentTimeMillis()}} every time.
> The advantage  is that we only send heartbeats when there is no (multicast) traffic, and we don't suspect a member P when heartbeats have been missing despite receiving traffic from P.
> We need to think about whether to consider unicast messages, too, on the sender side: we could populate a bit map with messages sent to members: on a unicast message to P, P's bit would be set in the bit. On a multicast message, all bits would be set. Then, we could selectively send heartbeats only to members with bits set to 0.
> However, this is only feasible with sending a message N-1 times (e.g. TCP); for UDP we don't have such an 'anycast' available.



--
This message was sent by Atlassian Jira
(v7.13.8#713008)