On Mon, 11 Feb 2013, Roman Alekseev wrote: > On 11.02.2013 09:36, Sage Weil wrote: > > On Mon, 11 Feb 2013, Roman Alekseev wrote: > > > Hi, > > > > > > When I try to reboot a client server without unmounting of rbd volume > > > manually > > > its services stop working but server doesn't reboot completely and show > > > the > > > following logs in KVM console: > > > > > > [235618.0202207] libceph: connect 192.168.0.19:6789 error -101 > > That is > > > > #define ENETUNREACH 101 /* Network is unreachable */ > > > > Note that that (or any other) socket error is not necessarily fatal; the > > kernel client will retry and eventually connect to that or another OSD > > to complete the IO. Are you observing that the RBD image hangs or > > something? > > > > You can peek at in-flight IO (and other state) with > > > > cat /sys/kernel/debug/ceph/*/osdc > > > > unmount/unmap should not be necessarily in any case unless there is a bug. > > We backported a bunch of stuff to 3.6.6, so 3.6.10 ought to be okay. You > > might try a newer 3.6.x kernel too; I forget if there was a second batch > > of fixes.. > > > > sage > > Hi Sage, > > > #define ENETUNREACH 101 /* Network is unreachable */ > > The reason of this error is that networking stop working after performing > server reset request. > > > Are you observing that the RBD image hangs or something? > > the RBD works properly. It is just mapped and mounted on the client server. > > # /dev/rbd1 99G 616M 93G 1% /home/test I think I'm confused about what you mean by 'server'. Do you mean the host that rbd is mapped on, or the host(s) where the ceph-osd's are running? By 'the RBD works properly' do you mean the client where it is mapped? In which case, what exactly is the problem? > The "/sys/kernel/debug" folder is empty, how to put 'ceph/*/osdc' content into > it? 'mount -t debugfs none /sys/kernel/debug' and it will appear (along with other fun stuff)... sage > > I've update kernel to 3.7.4 version but problem is still persist. > > Thanks > > -- > Kind regards, > > R. Alekseev > > -- > To unsubscribe from this list: send the line "unsubscribe ceph-devel" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > 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 majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
