[jira] [Commented] (MESOS-1280) Add replace task primitive

[Yan Xu (JIRA)]

[ 
https://issues.apache.org/jira/browse/MESOS-1280?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16188488#comment-16188488
 ] 

Yan Xu commented on MESOS-1280:
---

Probably not all fields in the TaskInfo make equal sense to be updatable or 
justify the complexity. If possible we probably still prefer treating tasks as 
cattle and want to only give them pet treatment for certain important benefits. 

[~zhitao] could you elaborate on the uses cases you were thinking about? I see 
that in 

 you mentioned in-place upgrades and launching zero-resource onto running 
executors, among others. 

I am asking because I recently started looking into something related to this. 
I may poll the user/dev thread later but am starting here first.

> Add replace task primitive
> --
>
> Key: MESOS-1280
> URL: https://issues.apache.org/jira/browse/MESOS-1280
> Project: Mesos
>  Issue Type: Bug
>  Components: agent, c++ api, master
>Reporter: Niklas Quarfot Nielsen
>  Labels: mesosphere
>
> Also along the lines of MESOS-938, replaceTask would one of a couple of 
> primitives needed to support various task replacement and scaling scenarios. 
> This replaceTask() version is significantly simpler than the first proposed 
> one; it's only responsibility is to run a new task info on a running tasks 
> resources.
> The running task will be killed as usual, but the newly freed resources will 
> never be announced and the new task will run on them instead.



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[jira] [Commented] (MESOS-1280) Add replace task primitive

[Zhitao Li (JIRA)]

[ 
https://issues.apache.org/jira/browse/MESOS-1280?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15755230#comment-15755230
 ] 

Zhitao Li commented on MESOS-1280:
--

Hi, is there any common interest in pursuing this in the next 1-2 Mesos release 
cycles? Our organization is quite interested in adding this capability for a 
couple of reasons, and would be happy if some committer is willing to shepherd 
us.

Thanks!

> Add replace task primitive
> --
>
> Key: MESOS-1280
> URL: https://issues.apache.org/jira/browse/MESOS-1280
> Project: Mesos
>  Issue Type: Bug
>  Components: agent, c++ api, master
>Reporter: Niklas Quarfot Nielsen
>  Labels: mesosphere
>
> Also along the lines of MESOS-938, replaceTask would one of a couple of 
> primitives needed to support various task replacement and scaling scenarios. 
> This replaceTask() version is significantly simpler than the first proposed 
> one; it's only responsibility is to run a new task info on a running tasks 
> resources.
> The running task will be killed as usual, but the newly freed resources will 
> never be announced and the new task will run on them instead.



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