Hey Gary, Mesos master is very light weight. Typically for a 1000 node cluster, the master doesn't need more than 1 CPU and 256 MB of memory. Regarding disk, the master only uses it to log its data (At Twitter we have seen 100MB worth of logs for 1 week) . So how much disk you want for the master is totally dependent on your data retention policy.
Regarding scaling, Mesos should be able to easily handle a 1000 node cluster. I recommend 3 master nodes (1 leader, 2 followers) backed up by zookeeper for fault tolerance. On Wed, Jun 26, 2013 at 6:33 AM, Gary Malouf <[email protected]> wrote: > Can anyone provide me some insights into how you scale out the master > node? I.E. what are the suggested ram/cpu/disk specs for a cluster with 3 > large EC2 instance slaves, 5, 10 etc. Obviously, there can only be one > master at a time so I feel like the increase in slaves should have minimal > effects on master requirements. > > Thanks, > > Gary >
