This patch from Cray enables storing real atime/mtime/cime in rbh DB and
using them as rbh-find options :
https://github.com/fzago-cray/robinhood/commit/acc3d7144ecff99f16af6ab776380c9bcc57ec7d
It is a little old (april 2013) but may still apply on current code.
HTH
Regards
Le 11/11/2015 20:32, Craig Tierney - NOAA Affiliate a écrit :
Thomas,
Thanks for the response. My problem is that we fake directory based
quotas by ensuring that the ownership of files matches the top level
directory. This means we have to walk the filesystem and change the
group ownership if needed. The problem is that this changes the mtime
and Robinhood then thinks the file was access, but it wasn't.
Craig
On Wed, Nov 11, 2015 at 12:21 PM, Thomas LEIBOVICI (mail perso)
<[email protected] <mailto:[email protected]>> wrote:
Le 10/11/2015 23:31, Craig Tierney - NOAA Affiliate a écrit :
Thomas,
Thanks for the quick response. To confirm, use of atime with
rbh-find will compare times to the last_access time?
Yes.
I understand this can be confusing but last_access is taken as the
last activity on the file (max(atime, mtime, ctime))
which appears to be a suitable criteria for purge policies in
particular.
Regards.
Craig
On Tue, Nov 10, 2015 at 2:19 PM, Thomas LEIBOVICI (mail perso)
<[email protected] <mailto:[email protected]>> wrote:
Hi Craig,
rbh's last_mod = stat's mtime
rbh's last_access = max(atime, mtime, ctime)
with Lustre changelogs:
rbh creation is the timestamp of the CREATE record of the
entry
when scanning :
rbh creation is the ctime of the entry the first time it
was seen.
Regards
Thomas
Le 10/11/2015 21:09, Craig Tierney - NOAA Affiliate wrote:
Hello,
I have a question regarding the difference in names of
timestamps used in Robinhood. When I run stat on a file, it
reports 3 times. These are Access, Change, and Modify.
When I run rbh-report --entry-info on the same file,
Robinhood uses creation, last_access, and last_mod.
Are last_access from RBH and Access from stat supposed to be
the same? What about Modify and last_mod? How does the
timestamp Change from stat and creation from RBH relate?
Thanks,
Craig
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