On Mon, 8 Jun 2009, Rainer Gerhards wrote: > Hi all, > > I am working on the ultra-reliable file writing capability. I have revisited > the doc and am considering fsync() vs. fdatasync(). From the man pages, it > looks like fdatasync() is sufficient if I just need to ensure that any data > written can also be read. The advantage of fdatasync() is that it is somewhat > faster as not all meta data is necessarily written. > > I would appreciate if someone could comment on this issue.
my understanding is that if you are growing the file you need to do a fsync of the directory, but if you are re-writing part of an already allocated file fdatasync is the better thing to use. David Lang _______________________________________________ rsyslog mailing list http://lists.adiscon.net/mailman/listinfo/rsyslog http://www.rsyslog.com
