I was not using ceph at that time, and my clocks are drifting somehow ... Last logs seen: 10.08.10_22:55:02.051810 7fdbdaac9710 log [WRN] : lease_expire from mon0 was sent from future time 10.08.10_22:55:03.346407, clocks not synchronized ... 10.08.11_00:16:49.492554 7fe740de6710 mds0.2 last tick was 90.001027 > 5 seconds ago, laggy_until 0.000000, setting laggy flag mon/MonitorStore.cc: In function 'int MonitorStore::write_bl_ss(ceph::bufferlist&, const char*, const char*, bool, bool)': mon/MonitorStore.cc:273: FAILED assert(!err) 1: (Paxos::stash_latest(unsigned long, ceph::buffer::list&)+0x170) [0x47a780] 2: (LogMonitor::update_from_paxos()+0x7bd) [0x4ca5cd] 3: (Monitor::_ms_dispatch(Message*)+0x851) [0x46d791] 4: (Monitor::ms_dispatch(Message*)+0x57) [0x4799b7] 5: (SimpleMessenger::dispatch_entry()+0x79b) [0x453b6b] 6: (SimpleMessenger::DispatchThread::entry()+0x1f) [0x44abbf] 7: (Thread::_entry_func(void*)+0xa) [0x45d4da] 8: (()+0x68ba) [0x7fdbdcd9b8ba] 9: (clone()+0x6d) [0x7fdbdbfb601d] NOTE: a copy of the executable, or `objdump -rdS <executable>` is needed to interpret this. Executable is the one from: ii ceph 0.21~rc-unstable201007281541-3ed08a33-1~bpo50+1 distributed storage and file system At your service. - Jan -- 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