[jboss-jira] [JBoss JIRA] Commented: (JBMESSAGING-1621) Provide complete message ordering in a clustered environment

[Tim Fox (JIRA)]

    [ https://jira.jboss.org/jira/browse/JBMESSAGING-1621?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12468351#action_12468351 ] 

Tim Fox commented on JBMESSAGING-1621:
--------------------------------------

JBM 1.x provides clustered strict message ordering by using HA Singleton, as discussed on the wiki.

JBM 1.x is in maintenance mode and there are no plans to implement strict ordering without using HA Singleton.

All new features are being added in JBM 2.0, not JBM 1.x.

> Provide complete message ordering in a clustered environment
> ------------------------------------------------------------
>
>                 Key: JBMESSAGING-1621
>                 URL: https://jira.jboss.org/jira/browse/JBMESSAGING-1621
>             Project: JBoss Messaging
>          Issue Type: Feature Request
>            Reporter: Yusuke Yamamoto
>            Assignee: Howard Gao
>             Fix For: 1.4.0.SP3.CP09, 1.4.5.GA
>
>
> While JBMESSAGING-1416 states message ordering feature in a singleton configuration, customer is also requesting a complete message ordering feature which is applicable in a clustered environment.
> Here's the background:
> In the case JMS is used, both performance and scalability are priority.
> There is a conflict between scalable JMS implementation and complete message ordering feature since order aware messages cannot be processed concurrently.
> But order unaware queues should be still processed in parallel for better throughput.
> Additionally, there are some cases that no downtime is acceptable. But HA-Singleton requires certain amount of time to fail-over the service to other node.

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