Re: Cassandra on Ceph

2015-02-02 Thread Eric Stevens
ut presumably slower. >>> >>> Lastly Cassandra is designed around running against local disks, you >>> will lose a lot of the advantages of this running it on Ceph. >>> >>> Daniel. >>> >>> On Mon, 2 Feb 2015 at 1:11 am Baskar Duraikannu

Re: Cassandra on Ceph

2015-02-01 Thread Colin Taylor
ld store all 3 Cassandra replicas on the same >> Ceph node. 3x Ceph, 1x Cassandra would be safer, but presumably slower. >> >> Lastly Cassandra is designed around running against local disks, you will >> lose a lot of the advantages of this running it on Ceph. >

Re: Cassandra on Ceph

2015-02-01 Thread Colin Taylor
; > On Mon, 2 Feb 2015 at 1:11 am Baskar Duraikannu < > baskar.duraika...@outlook.com> wrote: > >> What is the reason for running Cassandra on Ceph? I have both running >> in my environment but doing different things - Cassandra as transactional >>

Re: Cassandra on Ceph

2015-02-01 Thread Daniel Compton
nst local disks, you will lose a lot of the advantages of this running it on Ceph. Daniel. On Mon, 2 Feb 2015 at 1:11 am Baskar Duraikannu < baskar.duraika...@outlook.com> wrote: > What is the reason for running Cassandra on Ceph? I have both running in > my environment but doing

RE: Cassandra on Ceph

2015-02-01 Thread Baskar Duraikannu
What is the reason for running Cassandra on Ceph? I have both running in my environment but doing different things - Cassandra as transactional store and Ceph as block storage for storing files. From: Jan<mailto:cne...@yahoo.com> Sent: ‎2/‎1/‎2015 2:53

Re: Cassandra on Ceph

2015-01-31 Thread Jan
Colin;  Ceph is a block based storage architecture based on RADOS.    It comes with its own replication & rebalancing along with a map of the storage layer.     Some more details & similarities: a)Ceph stores a client’s data as objects within storage pools.   (think of C* partitions)b) Using the

Re: Cassandra on Ceph

2015-01-31 Thread Plotnik, Alexey
1. What do you mean by "on top of Ceph"? 2. What's he goal? -- Original Message -- From: "Colin Taylor" mailto:colin.tay...@gmail.com>> To: "user@cassandra.apache.org" mailto:user@cassandra.apache.org>> Sent: 01.02.2015 12:26:42 Sub

Cassandra on Ceph

2015-01-31 Thread Colin Taylor
I may be forced to run Cassandra on top of Ceph. Does anyone have experience / tips with this. Or alternatively, strong reasons why this won't work. cheers Colin