Hi all- Just a quick update.
I'm out of town for the next week and a half. Greg and Yehuda are working on the last few known kclient problems and pending disk format changes. I'm giving a talk on Ceph at linux.conf.au (in New Zealand this year) in January, so I'm hoping we can get those sorted out and do a release before that for wider testing. The major unresolved issue at this point is with OSD performance. The way the cosd daemon currently handles commits with btrfs is problematic: btrfs is slow to do a full commit. That can be improved with some effort, but that can only be improved so much. I'm working on some changes that will let you change the way the regular writes and journal interact, so you can do either parallel or write-ahead journaling. That will let us hopefully keep write latency low (even will the btrfs commit is slow), especially when there is a second spindle/nvram/ssd for the journaling. (Unfortunately all my work so far on that from last week was on a disk that went kaput; it's due back from the data recovery place in the next couple days.) sage ------------------------------------------------------------------------------ This SF.Net email is sponsored by the Verizon Developer Community Take advantage of Verizon's best-in-class app development support A streamlined, 14 day to market process makes app distribution fast and easy Join now and get one step closer to millions of Verizon customers http://p.sf.net/sfu/verizon-dev2dev _______________________________________________ Ceph-devel mailing list Ceph-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/ceph-devel
