GitHub user sjcorbett opened a pull request:
https://github.com/apache/incubator-brooklyn/pull/1043
Allows ScheduledTasks to be resubmitted even when the task throws an
exception.
I had to spend some time last week debugging an entity that was
mysteriously on fire even though its driver's `isRunning` method returned true
(verified via Groovy console).
After some log searching I realised that roughly the following scenario had
transpired:
* Entity running
* Network connectivity began affecting Brooklyn VM. Several entities were
on fire.
* One entity's SoftwareProcessImpl.serviceProcessIsRunning feed SSHed to
its VM. The SSH task threw an exception because of the network issue.
* The entity's serviceProcessIsRunning feed was cancelled.
* The network problem finished. The entity's status could not recover.
This PR adds a flag to `ScheduledTask` to indicate that its task should be
resubmitted even after throwing an exception. The `Poller` class has been
configured use this flag.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/sjcorbett/incubator-brooklyn scheduled-poller
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/incubator-brooklyn/pull/1043.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #1043
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commit 4ece7feff521ad260286f6ef7a9f48202ab0df2f
Author: Sam Corbett <[email protected]>
Date: 2015-11-18T12:46:32Z
Trivial doc fix
commit ba313ec4fc720e7a704e25bdc6b67aa21f36d240
Author: Sam Corbett <[email protected]>
Date: 2015-11-18T12:46:56Z
Closing ] in jquery selector
commit abe1bf3e51f73a2896be13a1e88a66bab36bfd99
Author: Sam Corbett <[email protected]>
Date: 2015-11-18T12:47:44Z
Adds cancelOnException to ScheduledTask
commit c0da7603fb8e9580fb339a742d9e855bf619a840
Author: Sam Corbett <[email protected]>
Date: 2015-11-18T14:36:32Z
Pollers set cancelOnException=false when scheduling tasks
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