Hi, Recently we need do some change timezone test on our ubuntu node. And this node mount a cephfs with kernel driver. when I changed the time of the system(for example, current is 2022-01-05 09:00:00, then we change the time to 2022-01-03 08:00:00 using date command), after about 30m~1h, this node cannot connect to cephfs. From dmesg log it always report some logs like "libceph: osd*** *.*.*.*:port bad authorize reply” we mount this cephfs with “-o rbytes,noatime,async,noexec,nodev,nodiratime”. Any suggestion how can we change the time and the cephfs not lost connect? One way is before change time, umount ceph , then change time, and mount ceph again, but this is seems a little complex. Thanks in advance! Thanks, Xiong _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx