On Tue, May 3, 2016 at 9:30 AM, Burkhard Linke <Burkhard.Linke@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote: > Hi, > > we have a number of legacy applications that do not cope well with the POSIX > locking semantics in CephFS due to missing locking support (e.g. flock > syscalls). We are able to fix some of these applications, but others are > binary only. > > Is it possible to disable POSIX locking completely in CephFS (either kernel > client or ceph-fuse)? I'm confused. CephFS supports all of these — although some versions of FUSE don't; you need a new-ish kernel. So are you saying that 1) in your setup, it doesn't support both fcntl and flock, 2) that some of your applications don't do well under that scenario? I don't really see how it's safe for you to just disable the underlying file locking in an application which depends on it. You may need to upgrade enough that all file locks are supported. -Greg _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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