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From "Robbie Gemmell (JIRA)" <j...@apache.org>
Subject [jira] [Work started] (AMQ-6031) AMQP: use System.nanoTime() when deriving time to tick the transport with for idle-timeout handling
Date Fri, 30 Oct 2015 16:39:27 GMT

     [ https://issues.apache.org/jira/browse/AMQ-6031?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Work on AMQ-6031 started by Robbie Gemmell.
-------------------------------------------
> AMQP: use System.nanoTime() when deriving time to tick the transport with for idle-timeout
handling
> ---------------------------------------------------------------------------------------------------
>
>                 Key: AMQ-6031
>                 URL: https://issues.apache.org/jira/browse/AMQ-6031
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: AMQP
>    Affects Versions: 5.12.1
>            Reporter: Robbie Gemmell
>            Assignee: Robbie Gemmell
>             Fix For: 5.13.0
>
>
> The sending of empty AMQP heartbeating frames to satisfy the remote peers advertised
idle-timeout, and closure of the connection if no frames are received from a peer to satisfy
our local idle-timeout, are handled by protons Transport#tick() method. This method takes
the current time as an argument and determines what (if any) actions should be undertaken
now, then returns the next point at which further processing is required. In order to faciliate
this the last 'current time' the method was called with is saved between calls. 
> As with QPIDJMS-136, we should update our usage of the proton Transport#tick() method
to use a monotonic time, derived from System.nanoTime(), rather than a wall time from System.currentTimeMillis(),
so that clock changes between these points dont lead to incorrect behaviour (e.g not sending
a required frame, or thinking a frame hasnt been received that should have been).



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