Now the service could be found, thanks. However, both ceph osd tree and ceph
status show osd.3 is still up, although ceph status also shows "degraded, stuck
unclean..." I think is because of clock skew on a second MON.
Besides, systemctl status ceph-osd@3 and systemctl status ceph-osd@4 give the
same result: Active: inactive (dead)
[root@ceph-node1 ~]# systemctl stop ceph-osd@3
[root@ceph-node1 ~]# ceph osd tree
ID WEIGHT TYPE NAME UP/DOWN REWEIGHT PRIMARY-AFFINITY
-1 0.04408 root default
-2 0.01469 host ceph-node1
0 0.00490 osd.0 up 1.00000 1.00000
1 0.00490 osd.1 up 1.00000 1.00000
2 0.00490 osd.2 up 1.00000 1.00000
-3 0.01469 host ceph-node3
3 0.00490 osd.3 up 0 1.00000
4 0.00490 osd.4 up 0 1.00000
8 0.00490 osd.8 up 0 1.00000
-4 0.01469 host ceph-node2
5 0.00490 osd.5 up 1.00000 1.00000
6 0.00490 osd.6 up 1.00000 1.00000
7 0.00490 osd.7 up 1.00000 1.00000
[root@ceph-node1 ~]# ceph status
cluster eee6caf2-a7c6-411c-8711-a87aa4a66bf2
health HEALTH_WARN
clock skew detected on mon.ceph-node3
48 pgs degraded
112 pgs stuck unclean
48 pgs undersized
recovery 342/513 objects degraded (66.667%)
Monitor clock skew detected
monmap e2: 2 mons at
{ceph-node1=192.168.57.101:6789/0,ceph-node3=192.168.57.103:6789/0}
election epoch 44, quorum 0,1 ceph-node1,ceph-node3
osdmap e99: 9 osds: 9 up, 6 in; 64 remapped pgs
flags sortbitwise
pgmap v45477: 112 pgs, 7 pools, 1636 bytes data, 171 objects
224 MB used, 30429 MB / 30653 MB avail
342/513 objects degraded (66.667%)
53 active+remapped
48 active+undersized+degraded
11 active
[root@ceph-node1 ~]# systemctl status ceph-osd@3
● [email protected] - Ceph object storage daemon
Loaded: loaded (/usr/lib/systemd/system/[email protected]; enabled; vendor
preset: disabled)
Active: inactive (dead)
________________________________
发件人: [email protected] <[email protected]> 代表 Владимир Дробышевский
<[email protected]>
发送时间: 2016年7月26日 4:47:14
收件人: 朱 彤
抄送: [email protected]
主题: Re: [ceph-users] 答复: 答复: how to transfer ceph cluster from the old
network-and-hosts to a new one
Hi!
You should use ceph-osd@<num> as a service name, not ceph, and systemctl as a
service control utility.
For example, 'systemctl stop ceph-osd@3'
Best regards,
Vladimir
С уважением,
Дробышевский Владимир
Компания "АйТи Город"
+7 343 2222192
ICQ# - 1921011
Аппаратное и программное обеспечение
IBM, Microsoft, Eset, Яндекс
Поставка проектов "под ключ"
Аутсорсинг ИТ-услуг
2016-07-26 7:11 GMT+05:00 朱 彤
<[email protected]<mailto:[email protected]>>:
@Дробышевский thanks, I have tried, but
# service ceph status
Redirecting to /bin/systemctl status ceph.service
● ceph.service
Loaded: not-found (Reason: No such file or directory)
Active: inactive (dead)
compared to another one having /etc/init.d/ceph and CentOS7 as well.
$ service ceph status
=== osd.6 ===
osd.6: running failed: '/usr/bin/ceph --admin-daemon
/var/run/ceph/ceph-osd.6.asok version 2>/dev/null'
They have the same OS, but one has /etc/init.d/ceph, the other one doesn't.
Probably I skipped some steps by mistake.
Since /etc/init.d/ceph is a script, can I just copy one to have it work?
________________________________
发件人: Дробышевский, Владимир <[email protected]<mailto:[email protected]>>
发送时间: 2016年7月25日 12:43:54
收件人: 朱 彤
抄送: [email protected]<mailto:[email protected]>
主题: Re: [ceph-users] 答复: how to transfer ceph cluster from the old
network-and-hosts to a new one
Hi!
CentOS 7 is using systemd, so you should stop osd with 'systemctl stop
ceph-osd@<num>'
Best regards,
Vladimir
С уважением,
Дробышевский Владимир
Компания "АйТи Город"
+7 343 2222192
Аппаратное и программное обеспечение
IBM, Microsoft, Eset
Поставка проектов "под ключ"
Аутсорсинг ИТ-услуг
2016-07-25 13:44 GMT+05:00 朱 彤
<[email protected]<mailto:[email protected]>>:
@Henrik Korkuc<mailto:[email protected]> thanks for the tip, operating on it. In
order to stop OSD, i need to run /etc/init.d/ceph stop osd.num, but just
noticed /etc/init.d/ceph is missing. No such directory or file. I used
ceph-deploy to install the cluster on Centos 7. Any idea?
Thanks!
________________________________
发件人: ceph-users
<[email protected]<mailto:[email protected]>>
代表 Henrik Korkuc <[email protected]<mailto:[email protected]>>
发送时间: 2016年7月25日 8:03:34
收件人: [email protected]<mailto:[email protected]>
主题: Re: [ceph-users] how to transfer ceph cluster from the old
network-and-hosts to a new one
On 16-07-25 10:55, 朱 彤 wrote:
Hi all,
I m looking for a method to transfer ceph cluster.
Now the cluster is located in network1 that has hosts A, B, C...
And the target is to transfer it to network2 that has hosts a,b,c...
What I can think of, is adding hosts a, b, c into the current cluster like
adding OSD and MON. Then after the data has been rebalanced, down OSD and MON
on hosts A,B,C
Then the question would be how to know the old OSD could be safely down?
This method causes too much redundant operations, other than creating OSD or
MON, in the new environment, should I also create PGs and POOLs just like the
old cluster has?
Is there a more direct way to shift cluster from old network and hosts to a new
one?
Hey,
please refer to recent post named "change of dns names and IP addresses of
cluster members" in this mailing list. If both networks are interconnected then
migration would be quite easy
Thanks!
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