[jira] [Updated] (AMQ-5168) CLONE - ActiveMQ 5.x does not support the notion of a grace-period for heart beats as supported by the STOMP protocol

["Charlie Mordant (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/AMQ-5168?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Charlie Mordant updated AMQ-5168:
---------------------------------

    Fix Version/s:     (was: 5.9.0)

> CLONE - ActiveMQ 5.x does not support the notion of a grace-period for heart beats as supported by the STOMP protocol
> ---------------------------------------------------------------------------------------------------------------------
>
>                 Key: AMQ-5168
>                 URL: https://issues.apache.org/jira/browse/AMQ-5168
>             Project: ActiveMQ
>          Issue Type: Bug
>    Affects Versions: 5.9.1
>            Reporter: Charlie Mordant
>            Assignee: Timothy Bish
>              Labels: easyfix
>
> Regarding the configuration of heart beating the STOMP protocol spec states:
>     "- because of timing inaccuracies, the receiver SHOULD be tolerant and take into account an error margin"
> However, it appears that ActiveMQ 5.x is not tolerant of any error margin. 
> Despite the fact that the spec says SHOULD rather than MUST it would make the implementation of STOMP clients easier if the error margin was published.
> As the broker aggressively enforces the heart beat timeouts false failover attempts can result.
> Apparently Apollo supports an error margin of 1.5x the configured heart beat. If it could be made configurable that would be even better! 



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