Thanks John, I'll keep that in mind. -- Thomas Lemarchand Cloud Solutions SAS - Responsable des systèmes d'information On lun., 2015-07-20 at 10:40 +0100, John Spray wrote: > > On 20/07/15 10:29, Thomas Lemarchand wrote: > > Hi Shane, list, > > > > I have no knowledge of HDFS at all. Why would someone choose CephFS > > instead of HDFS for Hadoop ? > > > > HDFS is meant for Hadoop right ? > > > > I may have to work on Hadoop in a few months, so I'd like to be > > able to > > do the right choice. > > One common motivation for using something other than HDFS is that a > site > has an existing filesystem for other applications, and wants to plug > Hadoop into that instead of creating a separate HDFS silo. Different > distributed FS options (HDFS, cephfs, lustre etc) all have different > price/performance tradeoffs too, and some folks have more I/O > intensive > workloads than others -- it's just like how you shop for storage with > > any other application. > > John > -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com