Re: make slaves not getting tasks anymore

[Dick Davies <di...@hellooperator.net>]

It sounds like you want to use checkpointing, that should keep the
tasks alive as you update
the mesos slave process itself.

On 30 December 2015 at 11:43, Mike Michel <mi...@mmbash.de> wrote:
> Hi,
>
>
>
> i need to update slaves from time to time and looking for a way to take them
> out of the cluster but without killing the running tasks. I need to wait
> until all tasks are done and during this time no new tasks should be started
> on this slave. My first idea was to set a constraint „status:online“ for
> every task i start and then change the attribute of the slave to „offline“,
> restart slave process while executer still runs the tasks but it seems if
> you change the attributes of a slave it can not connect to the cluster
> without rm -rf /tmp before which will kill all tasks.
>
>
>
> Also the maintenance mode seems not to be an option:
>
>
>
> „When maintenance is triggered by the operator, all agents on the machine
> are told to shutdown. These agents are subsequently removed from the master
> which causes tasks to be updated as TASK_LOST. Any agents from machines in
> maintenance are also prevented from registering with the master.“
>
>
>
> Is there another way?
>
>
>
>
>
> Cheers
>
>
>
> Mike