Re: ceph-deploy doesn't update ceph.conf

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On Thu, 9 May 2013, Greg Chavez wrote:
> So I feel like I'm missing something.  I just deployed 3 storage nodes
> with ceph-deploy, each with a monitor daemon and 6-8 osd's. All of
> them seem to be active with health OK.  However, it doesn't seem that
> I ended up with a useful ceph.conf.
> 
> ( running 0.61-113-g61354b2-1raring )
> 
> This is all I get:
> 
> [global]
> fsid = af1581c1-8c45-4e24-b4f1-9a56e8a62aeb
> mon_initial_members = kvm-cs-sn-10i, kvm-cs-sn-14i, kvm-cs-sn-15i
> mon_host = 192.168.241.110,192.168.241.114,192.168.241.115
> auth_supported = cephx
> osd_journal_size = 1024
> filestore_xattr_use_omap = true

This is correct.  It is no longer necessary to enumerate daemons in 
ceph.conf when using the default locations (/var/lib/ceph/osd/*).

> When you run "service ceph status", it returns nothing because it
> can't find any osd stanzas.

'service' invokes the sysvinit scripts, and on Ubuntu we are using 
upstart.  Try

 initctl list | grep ceph

to see what is running.

sage


> Based on the directory names in
> /var/lib/ceph/mon and the parsing of the mounted storage volumes I
> wrote this out:
> 
> http://pastebin.com/DLgtiC23
> 
> And then pushed it out.
> 
> The monitor id names seem odd to me, with the hostname instead of a,
> b, and c, but whatever.
> 
> Now I get this output:
> 
> root@kvm-cs-sn-10i:/etc/ceph# service ceph -a status
> === mon.kvm-cs-sn-10i ===
> mon.kvm-cs-sn-10i: not running.
> === mon.kvm-cs-sn-14i ===
> mon.kvm-cs-sn-14i: not running.
> === mon.kvm-cs-sn-15i ===
> mon.kvm-cs-sn-15i: not running.
> === osd.0 ===
> osd.0: not running.
> === osd.1 ===
> osd.1: not running.
> === osd.10 ===
> osd.10: not running.
> ...etc....
> 
> Not true!  Even worse, when I try to run "service ceph -a start", It
> freaks and complains about missing keys.  So now I have this process
> hanging around:
> 
> /usr/bin/python /usr/sbin/ceph-create-keys -i kvm-cs-sn-10i
> 
> Here's the output from that attempt:
> 
> root@kvm-cs-sn-10i:/tmp# service ceph -a start
> === mon.kvm-cs-sn-10i ===
> Starting Ceph mon.kvm-cs-sn-10i on kvm-cs-sn-10i...
> failed: 'ulimit -n 8192;  /usr/bin/ceph-mon -i kvm-cs-sn-10i
> --pid-file /var/run/ceph/mon.kvm-cs-sn-10i.pid -c /etc/ceph/ceph.conf
> '
> Starting ceph-create-keys on kvm-cs-sn-10i...
> 
> Luckily I hadn't set up my ssh keys yet, so that's as far as I got.
> 
> Would dearly love some guidance.  Thanks in advance!
> 
> --Greg Chavez
> _______________________________________________
> ceph-users mailing list
> ceph-users@xxxxxxxxxxxxxx
> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
> 
> 
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