[jboss-jira] [JBoss JIRA] Commented: (JGRP-1250) Quality of service properties per message

[Bela Ban (JIRA)]

    [ https://jira.jboss.org/browse/JGRP-1250?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12561805#action_12561805 ] 

Bela Ban commented on JGRP-1250:
--------------------------------

Added NO_RELIABILITY (bypasses UNICAST, UNICAST2, NAKACK and SMACK) and NO_TOTAL_ORDER (bypasses SEQUENCER).
This is temporary; a more generic implementation will be tackled in 3.x.


> Quality of service properties per message
> -----------------------------------------
>
>                 Key: JGRP-1250
>                 URL: https://jira.jboss.org/browse/JGRP-1250
>             Project: JGroups
>          Issue Type: Feature Request
>            Reporter: Bela Ban
>            Assignee: Bela Ban
>             Fix For: 3.0
>
>
> JGroups already has the ability to bypass certain protocols, e.g. NO_FC set in a message bypasses any flow control layer. 
> It would be nice to do this for other protocols, too, e.g. SEQUENCER, but this needs to be done in a generic fashion.
> What should be done is to use *properties*, e.g. +reliable-mcast, -frag, +flowcontrol, -bundling etc. Based on these flags, each protocol decides whether to handle (or not) a message. The properties should not take up *any* space in a message if not set.
> This can probably be generalized, ie. by annotating a protocol with the props it provides, e.g. @Reliable @ReliableUnicast UNICAST, and by having code which matches the flags in a message and decides whether or not to process the message.

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