On Thu, 28 Mar 2013 11:46:21 -0400 chas williams - CONTRACTOR <c...@cmf.nrl.navy.mil> wrote:
> > Doesn't pdflush guarantee this? That something doesn't stay around in > > memory forever. > > On a modern Linux, yes. On other operating systems, I don't know. I > imagine Solaris has something but off the top of my head I have no > idea its behavior with regard to ufs and timely flushing of dirty > pages. Solaris ZFS at least should be fine; I've gotten complaints about the backgrounding behavior before about how it's completely useless on ZFS. > Given the plethora of filesystems and platforms supported by OpenAFS, > it is perhaps best to be conservative with regard to the defaults and > let savvy admins shoot themselves in the foot instead of doing it for > them. That's why I'm thinking there should be an option of sync vs no-sync (and not have the delayed syncs). If you want a 'delayed sync' guarantee behavior, you can rely on the OS for it. If your OS doesn't do that, then don't use it. Or we can whitelist certain platform/filesystem combinations, where we are confident that delayed sync is useless, and turn off the delayed syncs there. -- Andrew Deason adea...@sinenomine.net _______________________________________________ OpenAFS-devel mailing list OpenAFS-devel@openafs.org https://lists.openafs.org/mailman/listinfo/openafs-devel
