> When restartng the masters, should they be restarted gradually (restart a master, wait 30 seconds, restart the next)? Craig, ideally you should roll the masters one at a time (maintain a --quorum of masters up at all times), providing enough time for a new master to recover the replicated log and be ready for a failover. This reduces downtime and guarantees a continuous connection to frameworks/agents. If you restart all the masters at once, there's a period when they're all inaccessible, and you don't maintain quorum.
On Tue, Oct 13, 2015 at 9:34 AM, craig w <[email protected]> wrote: > I have not tried to upgrade to 0.25.0 yet. I'm hoping to try the upgrade > this week. We're currently on mesos 0.24.1 and marathon 0.11.0 (just > upgraded this today). > > I'll give the upgrade to 0.25.0 a shot in a test environment, in the > meantime if you perform an experiment I'd be interested in your findings. > > Thanks, > Craig > > On Tue, Oct 13, 2015 at 12:25 PM, Niklas Nielsen <[email protected]> > wrote: > >> Hi Craig, >> >> That should definitely not happen; did you try to upgrade to 0.25.0 >> already? If not, we can try to run an upgrade experiment with that marathon >> version. >> >> Niklas >> >> On 13 October 2015 at 02:39, craig w <[email protected]> wrote: >> >>> When upgrading from 0.23.0 to 0.24.1, I installed the new binaries and >>> restarted the masters (all at once), then restarted all of the slaves. >>> >>> I then observed all of the tasks that were running (via Marathon 0.10.x) >>> were restarted. I had expected "no downtime" or restarts, did I >>> misunderstand the upgrade instructions or did I perhaps do something >>> incorrectly? >>> >>> When restartng the masters, should they be restarted gradually (restart >>> a master, wait 30 seconds, restart the next)? >>> >>> I'm looking to upgrade from 0.24.1 to 0.25.0 but want to avoid having >>> all of the tasks restart again. >>> >>> Thanks, >>> Craig >>> >> >> > > > -- > > https://github.com/mindscratch > https://www.google.com/+CraigWickesser > https://twitter.com/mind_scratch > https://twitter.com/craig_links > >
