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https://issues.apache.org/jira/browse/BROOKLYN-580?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Aled Sage resolved BROOKLYN-580.
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Resolution: Fixed
Fix Version/s: 1.0.0
Was fixed in https://github.com/apache/brooklyn-server/pull/947
> Rebinding to MachineEntity: sometimes fails to reconnect sensor feeds
> ---------------------------------------------------------------------
>
> Key: BROOKLYN-580
> URL: https://issues.apache.org/jira/browse/BROOKLYN-580
> Project: Brooklyn
> Issue Type: Bug
> Affects Versions: 0.12.0
> Reporter: Aled Sage
> Priority: Major
> Fix For: 1.0.0
>
>
> On rebind, sometimes \{{MachineEntity}} instances do not have their feeds
> recreated. This is illustrated by non-deterministic test failure in
> \{{MachineEntityJcloudsRebindTest}}.
> The problem is that \{{SoftwareProcessImpl.callRebindHooks}} schedules a task
> to call \{{connectSensors}} in something between 0 and 10 seconds time, which
> will try to recreate the feeds. However, if this executes too soon (while
> rebind is still happening), the \{{SshMachineLocation}} may not yet be
> managed. If that is the case, the feed is not created.
> This is most likely to happen if there are a lot of entities/locations, so
> iterating over them for rebind takes longer. It is random in that the delay
> in calling \{{connectSensors}} can sometimes be extremely short (the
> randomness there is to avoid the thundering herd problem on rebind).
> Although the symptoms are similar to
> https://issues.apache.org/jira/browse/BROOKLYN-425, the underlying cause is
> different - therefore treating this as a new issue rather than reopening the
> old one.
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