Re: [ceph-users] Ceph and my use case - is it a fit?

2014-08-02 Thread Matan Safriel
Thanks John, I really mean my files are too small for HDFS, as the majority of them will be under 64M, which I think is (still?) the default HDFS block size, *and also,* they will be very numerous. As such, they would quickly consume a huge aggregate amount of RAM on the HDFS name node, which is

Re: [ceph-users] 0.80.5-1precise Not Able to Map RBD & CephFS

2014-08-02 Thread Ilya Dryomov
On Sat, Aug 2, 2014 at 1:41 AM, Christopher O'Connell wrote: > So I've been having a seemingly similar problem and while trying to follow > the steps in this thread, things have gone very south for me. Show me where in this thread have I said to set tunables to optimal ;) optimal (== firefly for

Re: [ceph-users] 0.80.5-1precise Not Able to Map RBD & CephFS

2014-08-02 Thread Ilya Dryomov
On Sat, Aug 2, 2014 at 10:03 PM, Christopher O'Connell wrote: > On Sat, Aug 2, 2014 at 6:27 AM, Ilya Dryomov > wrote: >> >> On Sat, Aug 2, 2014 at 1:41 AM, Christopher O'Connell >> wrote: >> > So I've been having a seemingly similar problem and while trying to >> > follow >> > the steps in this

Re: [ceph-users] 0.80.5-1precise Not Able to Map RBD & CephFS

2014-08-02 Thread Christopher O'Connell
Hi Ilya, Short of building a 3.14 kernel from scratch, are there any centos/EL kernels of 3.14 but less than 3.15? Is the fix in 3.15 yet? I just installed 3.15.8. All the best, ~ Christopher Al On Sat, Aug 2, 2014 at 11:20 AM, Ilya Dryomov wrote: > On Sat, Aug 2, 2014 at 10:03 PM, Christo

Re: [ceph-users] 0.80.5-1precise Not Able to Map RBD & CephFS

2014-08-02 Thread Christopher O'Connell
To be more clear on my question, we currently use ELRepo for those rare occasions when we need a 3.x kernel on centos. Are you aware of anyone maintaining a 3.14 kernel. On Sat, Aug 2, 2014 at 3:01 PM, Christopher O'Connell wrote: > Hi Ilya, > > Short of building a 3.14 kernel from scratch, are

Re: [ceph-users] Firefly OSDs stuck in creating state forever

2014-08-02 Thread Bruce McFarland
Yes I looked at tcpdump on each of the OSDs and saw communications between all 3 OSDs before I sent my first question to this list. When I disabled selinux on the one offending server based on your feedback (typically we have this disabled on lab systems that are only on the lab net) the 10 page