Hi Sage, On Sat, 2010-12-04 at 21:59 -0700, Sage Weil wrote: > Hi Jim, > > I think there are at least two different things going on here. > > On Fri, 3 Dec 2010, Jim Schutt wrote: > > On Fri, 2010-12-03 at 15:36 -0700, Gregory Farnum wrote: > > > How are you generating these files? It sounds like maybe you're > doing > > > them concurrently on a bunch of clients? > > > > When I created the files initially, I did it via one > > dd per client over 64 clients, all at the same time. > > > > When I used echo to truncate them to zero length, I > > did all files from one client. Also, when I removed > > the files, I did them all from a single client. > > The MDS doesn't release objects on deleted files until all references > to > the file go away (i.e. everyone closes the file handle). The client > make > a point of releasing it's capability on inodes it unlinks, but since > the > unlink happened on a different node, the writer doesn't realize it's > unlinked and doesn't bother to release its capability (until it gets > pushed out of the inode cache due to normal cache pressure). I > suspect > this will need some additional messaging to get the client to drop it > sooner. > > http://tracker.newdream.net/issues/630 > > That fix won't make it into 0.24, sorry! Probably 0.24.1. > Thanks for tracking this! Whatever priority you assign works great for me. -- Jim -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
