[ceph-devel] Hello, and question about uses for ceph

2010-01-25 Thread Wood . Chris
Hello everyone, I found out about this project looking for "distributed storage" software. What I have in mind is this: We have 248 sites each running a work order system on a server tower with 950Gb internal storage on a RAID 5 array. Right now, the application only consumes about 15Gb of the

Re: [ceph-devel] Hello, and question about uses for ceph

2010-01-25 Thread Dallas Kashuba
Hi, Ceph isn't really intended to be used across wide area networks. From what I understand there's not really a technical limitation preventing it, but you would probably get pretty poor performance. Ceph is primarily intended for use within a single local area network, and that's what's bei

Re: [ceph-devel] Caps disagreement

2010-01-25 Thread Sage Weil
Okay, I pushed a patch that reworks this. If the op is interrupted, we flag the request struct but leave it registered, so we can still process the reply. That processing does the caps updates, but skips the dcache changes, since we won't hold i_mutex anymore. It also clears the directory's