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
