Hi, My ceph file system consists of 1 mon, 1 mds and 2 osds, and 1 mon 1mds 1 osd on the same machine(called machine a). Yesterday, I have to change the IP of mon(because the environment our machine room changed), I wonder if there is any way to do this without stop cephfs and deploy it again( the data before will disappear). My solution is add 2 new mons so that there are 3 mons, then remove 2 mons, and only stay the mon I want to use. But without enough machines, I add 1 internal IP for the machine a and then do as "http://ceph.com/docs/master/cluster-ops/add-or-rm-mons/#adding-a-monitor-manual"; says. I don't understand the 6th step "ceph mon add <name> <ip>[:<port>]\n"; ", so I execute "ceph mon add mon.b 192.168.66.146:6790", after this my mon goes down. If a start mon with "/etc/ceph/init.d/ceph -a start mon.a", the log is: " terminate called after throwing an instance of 'ceph::buffer::end_of_buffer' what(): buffer::end_of_buffer *** Caught signal (Aborted) ** in thread 7f14069e1760 ceph version 0.48argonaut (commit:c2b20ca74249892c8e5e40c12aa14446a2bf2030) 1: /usr/local/bin/ceph-mon() [0x55f7a9] 2: (()+0xf2d0) [0x7f14065d92d0] 3: (gsignal()+0x35) [0x7f1404fe3ab5] 4: (abort()+0x186) [0x7f1404fe4fb6] 5: (__gnu_cxx::__verbose_terminate_handler()+0x11d) [0x7f1405849a9d] 6: (()+0xbccb6) [0x7f1405847cb6] 7: (()+0xbcce3) [0x7f1405847ce3] 8: (()+0xbcdee) [0x7f1405847dee] 9: /usr/local/bin/ceph-mon() [0x5fa8af] 10: (main()+0x1f19) [0x485069] 11: (__libc_start_main()+0xfd) [0x7f1404fcfbfd] 12: /usr/local/bin/ceph-mon() [0x482f99] 2012-10-25 18:02:03.725089 7f14069e1760 -1 *** Caught signal (Aborted) ** in thread 7f14069e1760 ceph version 0.48argonaut (commit:c2b20ca74249892c8e5e40c12aa14446a2bf2030) 1: /usr/local/bin/ceph-mon() [0x55f7a9] 2: (()+0xf2d0) [0x7f14065d92d0] 3: (gsignal()+0x35) [0x7f1404fe3ab5] 4: (abort()+0x186) [0x7f1404fe4fb6] 5: (__gnu_cxx::__verbose_terminate_handler()+0x11d) [0x7f1405849a9d] 6: (()+0xbccb6) [0x7f1405847cb6] 7: (()+0xbcce3) [0x7f1405847ce3] 8: (()+0xbcdee) [0x7f1405847dee] 9: /usr/local/bin/ceph-mon() [0x5fa8af] 10: (main()+0x1f19) [0x485069] 11: (__libc_start_main()+0xfd) [0x7f1404fcfbfd] 12: /usr/local/bin/ceph-mon() [0x482f99] NOTE: a copy of the executable, or `objdump -rdS <executable>` is needed to interpret this. 0> 2012-10-25 18:02:03.725089 7f14069e1760 -1 *** Caught signal (Aborted) ** in thread 7f14069e1760 ceph version 0.48argonaut (commit:c2b20ca74249892c8e5e40c12aa14446a2bf2030) 1: /usr/local/bin/ceph-mon() [0x55f7a9] 2: (()+0xf2d0) [0x7f14065d92d0] 3: (gsignal()+0x35) [0x7f1404fe3ab5] 4: (abort()+0x186) [0x7f1404fe4fb6] 5: (__gnu_cxx::__verbose_terminate_handler()+0x11d) [0x7f1405849a9d] 6: (()+0xbccb6) [0x7f1405847cb6] 7: (()+0xbcce3) [0x7f1405847ce3] 8: (()+0xbcdee) [0x7f1405847dee] 9: /usr/local/bin/ceph-mon() [0x5fa8af] 10: (main()+0x1f19) [0x485069] 11: (__libc_start_main()+0xfd) [0x7f1404fcfbfd] 12: /usr/local/bin/ceph-mon() [0x482f99] NOTE: a copy of the executable, or `objdump -rdS <executable>` is needed to interpret this. bash: line 1: 31426 Aborted (core dumped) /usr/local/bin/ceph-mon -i a --pid-file /var/run/ceph/mon.a.pid -c /tmp/ceph.conf.16468 failed: 'ssh osd01 /usr/local/bin/ceph-mon -i a --pid-file /var/run/ceph/mon.a.pid -c /tmp/ceph.conf.16468 ' " Now I don't know how to do with this situation. Thank you! -- 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
