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Rough implementation of an event-based job control model #28
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This new event consumer listens for new jobs or machines and ensures two things: 1) new cluster-level jobs are scheduled to all machines in the cluster 2) new machines receive each of the cluster-level jobs when they boot This code needs a lot of work, but hey, it's functional.
| registry.EventMachineCreated: self.handleEventMachineCreated, | ||
| registry.EventMachineDeleted: self.handleEventMachineDeleted, | ||
| registry.EventRequestCreated: self.handleEventRequestCreated, | ||
| } |
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Does this need to be in the event loop?
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No it does not. Working on more refactoring locally now into which I will incorporate this change.
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@polvi I got impatient with myself. There you go ^ |
just make everything recursive for now.
Fixup to use etcd master
* JobRequest objects yield JobWatch objects * A JobWatch object tracks a single JobPayload and a Count. A Count value of -1 represents the need to run a Job with the contained JobPayload on every host. A value other than -1 represents the need to run a specific number of the contained JobPayload across the cluster. * A user of corectl may pass a --count flag to set Count to something larger than 1 * EventMachineUpdated events are now emitted when an Agent heartbeats. This is used by the Dispatcher to track an up-to-date list of machines.
bcwaldon
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Rough implementation of an event-based job control model
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| func (self *Dispatcher) claimRequest(request *job.JobRequest) bool { | ||
| return self.registry.AcquireLock(request.ID.String(), self.machine.BootId, self.claimTTL) |
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aside: can you try out the lock mod once it is merged? etcd-io/etcd#347
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