#2993
  • Created on
    2013-01-31 10:31
  • Reported by
    Patrik Nordwall
  • Status
    Fixed
  • Priority
    Normal (3)
  • Assigned to
    Patrik Nordwall
  • Milestone
    2.2-M3
  • Plan Level
    -
  • Due Date
    -

Attachments

Reliable remote supervision and death watch

Supervision and detection of termination of remote children needs a water proof solution. Currently we have the cluster add-on via RemoteDeploymentWatcher in ClusterActorRefProvider, which uses watch and generates ChildTerminated messages.

This is not perfect, since ChildTerminated is not idempotent and there is a potential race when creating a new child with the same name.

Explore the possibility to fold RemoteDeploymentWatcher functionality into the ActorCell so that the parent takes care of AddressTerminated itself.

Remember that Terminated can also be generated via deadLetters from connection failures when sending Watch.

A complete re-design together with reliable system messages might be considered. See #1478

Also, remove the note in cluster documentation: ".. note:: Creating a remote deployed child actor with the same name as the terminated
actor is not fully supported..."
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  on 2013-01-31 10:34 *
By Patrik Nordwall
Description changed from Supervision and detection o... to Supervision and detection o...
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  on 2013-02-01 21:03 *
By rkuhn
Milestone set to Coltrane
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  on 2013-02-22 09:21 *
By Patrik Nordwall
Component changed from None to actor
Summary changed from Reliable remote supervision to Discuss reliable remote supervision
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  on 2013-02-22 09:52 *
By rkuhn
Summary changed from Discuss reliable remote supervision to Reliable remote supervision
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  on 2013-04-04 18:54 *
By Jonas Bonér
This is a feature that we can not ship 2.2 without.
What is the status?
I'd like to see it done pretty soon so we can test the crap out of it.
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  on 2013-04-05 09:24 *
By drewhk
This heavily relies on #1478 (reliable delivery for system messages) which I am currently working on.
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  on 2013-04-08 12:13 *
By Patrik Nordwall
Estimate changed from Small to Large
Sum of child estimates changed from 1.0 to 7.0
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  on 2013-04-08 12:13 *
By Patrik Nordwall
Summary changed from Reliable remote supervision to Reliable remote supervision and death watch
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  on 2013-04-09 06:17 *
By Patrik Nordwall
Milestone changed from Coltrane to Current
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  on 2013-04-09 06:19 *
By Patrik Nordwall
I will take a first stab at the FD and heartbeating for remote watch.
Then we need to integrate with #2594 and friends.
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  on 2013-04-09 14:39 *
By Patrik Nordwall
Assigned to set to Patrik Nordwall
Status changed from New to Accepted
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  on 2013-04-17 18:53 *
By Patrik Nordwall
Status changed from Accepted to Fixed