Ok, I see. Thanks for the clarification :)
On Mon, Aug 27, 2012 at 6:20 PM, Gregory Farnum <[email protected]> wrote: > On Mon, Aug 27, 2012 at 9:10 AM, Sébastien Han <[email protected]> > wrote: >> Ok for the lazy umount but the journal is not here anymore, maybe >> still written in memory. > > The lazy unmount keeps the filesystem attached to the tree until > nobody's using it anymore. What you've done here is to say "as soon as > nobody's touching this, kill it!" So the Ceph OSD keeps on using the > journal, and Linux keeps it around...and then when you shut down the > OSD, Linux removes the journal (*after* the OSD is done with it). > There is literally nothing that Ceph can do about this scenario. > -Greg > >> On Mon, Aug 27, 2012 at 10:59 AM, Jerker Nyberg <[email protected]> wrote: >>> On Sun, 26 Aug 2012, Sébastien Han wrote: >>> >>>> I used: >>>> >>>> umount -l to bypassed the warning. >>> >>> >>> "umount -l" does a lazy unmount. The file system is not really unmounted >>> until it is not busy anymore. Ceph may continue to use the open journals and >>> they should be visible in the file system hierarchy. >>> >>> Kind regards, >>> Jerker Nyberg. >> -- >> To unsubscribe from this list: send the line "unsubscribe ceph-devel" in >> the body of a message to [email protected] >> More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
