[
https://issues.apache.org/jira/browse/MESOS-1409?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Benjamin Mahler updated MESOS-1409:
-----------------------------------
Fix Version/s: 0.20.0
> Send status update acknowledgments through the Master.
> ------------------------------------------------------
>
> Key: MESOS-1409
> URL: https://issues.apache.org/jira/browse/MESOS-1409
> Project: Mesos
> Issue Type: Task
> Affects Versions: 0.19.0
> Reporter: Benjamin Mahler
> Fix For: 0.20.0
>
>
> Currently status update acknowledgments are sent directly from the scheduler
> driver to the slave.
> This has worked well in the sense that it removes the additional overhead of
> processing acknowledgments through the master.
> However, in order to provide correct reconciliation of tasks, the master
> needs to hold on to terminal *unacknowledged* tasks to ensure that it can
> correctly identify these until the framework receives the terminal update.
> Without this, we are susceptible to MESOS-1389.
> There will be additional traffic through the master from acknowledgments that
> we need to be aware of. However, most of the scaling bottlenecks we have seen
> in the past are in the scheduler driver's queue when we send messages faster
> than the framework can process them in a persistent manner. With MESOS-1408,
> I suspect that we will have a smaller number of update retries in the
> presence of a heavy load on a scheduler, even with the acknowledgments going
> through the master.
--
This message was sent by Atlassian JIRA
(v6.2#6252)
