From: Qiang <wangqiang.hunan@gmail.com>
To: ceph-devel@vger.kernel.org
Subject: Iusse: Ceph osd rm one osd cause 30% objects degraded
Date: Wed, 19 Nov 2014 19:29:50 +0800 [thread overview]
Message-ID: <546C7F2E.8020207@gmail.com> (raw)
Hi, Dear ceph-devel
I met a issue: Ceph osd rm one osd cause 30% objects degraded.
Step 1:
#created a ssd root
ceph osd crush add-bucket ssd root
Step 2: Installed a osd.100 failed:
94 1 osd.94 up 1
95 1 osd.95 up 1
96 1 osd.96 up 1
97 1 osd.97 up 1
98 1 osd.98 up 1
99 1 osd.99 up 1
100 0 osd.100 down 0
Step 3: Installed a osd.101 again successfully. Move a host into root=ssd.
-12 1 root ssd
-13 1 host ssd-cephnode1
101 1 osd.101 up 1
-1 100 root default
-2 10 host cephnode1
0 1 osd.0 up 1
1 1 osd.1 up 1
2 1 osd.2 up 1
Step 4: Then I ceph osd rm 100, but the the ceph health turned into 30%
objects degraded. Then the io performance downgrade to very slow (1MB/s
each clients).
Anybody know what is the root cause? Or some suggestions to finger it out?
Thank you very much.
next reply other threads:[~2014-11-19 11:29 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-19 11:29 Qiang [this message]
2014-11-19 15:30 ` Issue: Ceph osd rm one osd cause 30% objects degraded Qiang
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=546C7F2E.8020207@gmail.com \
--to=wangqiang.hunan@gmail.com \
--cc=ceph-devel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.