Re: [Beowulf] CephFS

2015-04-21 Thread Brendan Moloney
Hi, A bit late to the discussion, but I am currently setting up Ceph for our cluster storage and wanted to throw in my 2 cents. It is important to realize that Ceph provides many layers of storage services. At the lowest level we have the object storage layer (RADOS) which can be accessed through

Re: [Beowulf] Paper describing Google's queuing system "Borg"

2015-04-21 Thread Adam DeConinck
> Is Omega the successor? John Wilkes from Google gave a presentation on Omega at Lisa '13 (video @ https://www.usenix.org/cluster-management-google). If I recall correctly, he says in the talk that Omega was developed as a potential successor to their current cluster manager, but that they were

Re: [Beowulf] Paper describing Google's queuing system "Borg"

2015-04-21 Thread Scott Atchley
Is Omega the successor? The Borg paper mentions Omega : Omega [69] supports multiple parallel, specialized “verti- cals” that are each roughly equivalent to a Borgmaster minus its persistent store and link shards. Omega schedulers use optimistic concurrency control to manipulate a shared repre-