On Tue, Apr 12, 2016 at 2:14 AM, 施柏安 <desmond.s@xxxxxxxxxxxxxx> wrote:
Hi John,You are right. The id is not '0'.I checked the status of mds by command 'ceph mds dump'. There is not showing much info for MDS servers.Is there any command can check the mds list or health easily?
The info you get in "mds dump" includes the service names, but it is for running daemons only. Currently to know the ID of a non-running daemon you either have to remember it (easy if it's the hostname) or look in /var.
John
Thank for your help....vagrant@mds-1:~$ sudo ls /var/lib/ceph/mdsceph-mds-1vagrant@mds-1:~$ sudo service ceph-mds start id=ceph-mds-1ceph-mds stop/waitingvagrant@mds-1:~$ sudo service ceph-mds start id=mds-1ceph-mds (ceph/mds-1) start/running, process 6809vagrant@mds-1:~$vagrant@mds-1:~$ lsvagrant@mds-1:~$ ps aux | grep mdsceph 6809 0.0 1.7 338752 8792 ? Ssl 01:11 0:00 /usr/bin/ceph-mds --cluster=ceph -i mds-1 -f --setuser ceph --setgroup cephvagrant 6830 0.0 0.1 10432 628 pts/0 S+ 01:11 0:00 grep --color=auto mds...2016-04-11 19:12 GMT+08:00 John Spray <jspray@xxxxxxxxxx>:Is the ID of the MDS service really "0"? Usually people set the ID to the hostname. Check it in /var/lib/ceph/mdsJohnOn Mon, Apr 11, 2016 at 9:44 AM, 施柏安 <desmond.s@xxxxxxxxxxxxxx> wrote:_______________________________________________Hi cephers,
I was testing CephFS's HA. So I shutdown the active mds server.
Then the one of standby mds turn to be active. Everything seems work properly.
But I boot the mds server which was shutdown in test. It can't join cluster automatically.
And I use command 'sudo service ceph-mds start id=0'. It can't start and just show 'ceph-mds stop/waiting'Is that the bug or I do wrong operation?
--
Best regards,
施柏安 Desmond Shih
技術研發部 Technical Development迎棧科技股份有限公司 │ 886-975-857-982 │ desmond.s@inwinstack │ 886-2-7738-2858 #7441 │ 新北市220板橋區遠東路3號5樓C室 Rm.C, 5F., No.3, Yuandong Rd., Banqiao Dist., New Taipei City 220, Taiwan (R.O.C)
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--
Best regards,
施柏安 Desmond Shih
技術研發部 Technical Development迎棧科技股份有限公司 │ 886-975-857-982 │ desmond.s@inwinstack │ 886-2-7738-2858 #7441 │ 新北市220板橋區遠東路3號5樓C室 Rm.C, 5F., No.3, Yuandong Rd., Banqiao Dist., New Taipei City 220, Taiwan (R.O.C)
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