On 2010-08-03 15:12:19 +0200, Stefan Sperling wrote: > On Tue, Aug 03, 2010 at 02:36:41PM +0200, Vincent Lefevre wrote: > > On 2010-08-03 12:56:28 +0200, Stefan Sperling wrote: > > > Subversion carefully flushes file buffers after writing revision files. > > > > What do you mean by "flushes file buffers"? A call to fflush()? > > Or a call to sync() or fsync() too? > > > > Assuming the filesystem is on a remote machine (say, NFS), the > > necessary needs to be done on the client side: the NFS server > > cannot take into account the kernel-level buffers of the client. > > Subversion calls apr_file_flush(). What that does on which platform > depends on APR (and could theoretically change over time). > > I'm not sure what else you suggest we should do to avoid the (from > my point of view non-existent) bug you were talking about.
Well, not flushing the buffers at some low level is not necessarily a bug. But in such a case the user has to accept the consequences, such as a filesystem snapshot not providing a consistent state of a Subversion repository. -- Vincent Lefèvre <vinc...@vinc17.net> - Web: <http://www.vinc17.net/> 100% accessible validated (X)HTML - Blog: <http://www.vinc17.net/blog/> Work: CR INRIA - computer arithmetic / Arénaire project (LIP, ENS-Lyon)
