problem readding an osd

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Hello,

 

I think this is a newbe question but I tested everything and, yes I FTFM as best I could.

 

I’m evaluating ceph and so I setup a cluster of 4 nodes.  The nodes are KVM virtual machines named ceph01 to ceph04 all running Ubuntu 12.04.2 LTS each with a single osd named osd.1 though osd.4 respective to the host they were running on.  Each host also has a 1TB disk for ceph to use ‘/dev/vdb1’.

 

After some work I was able to get the cluster up and running and even mounted it on a test client host (named ceph00).  I ran into issues when I was testing a failure.  I shut off ceph02 and watched via (ceph –w) it recover and move the data around.  At this point all is fine.

 

When I turned the host back on, it did not auto reconnect.  I expected this.  I then send through many attempts to re add it but all failed.

 

Here is an output from:  ceph osd tree

 

# id    weight  type name       up/down reweight

-1      4       root default

-3      4               rack unknownrack

-2      1                       host ceph01

1       1                               osd.1   up      1

-4      1                       host ceph02

2       1                               osd.2   down    0

-5      1                       host ceph03

3       1                               osd.3   up      1

-6      1                       host ceph04

4       1                               osd.4   up      1

-7      0               rack unkownrack

 

ceph -s

   health HEALTH_WARN 208 pgs peering; 208 pgs stuck inactive; 208 pgs stuck unclean; 1/4 in osds are down

   monmap e1: 1 mons at {a=10.30.20.81:6789/0}, election epoch 1, quorum 0 a

   osdmap e172: 4 osds: 3 up, 4 in

    pgmap v1970: 960 pgs: 752 active+clean, 208 peering; 5917 MB data, 61702 MB used, 2854 GB / 3068 GB avail

   mdsmap e39: 1/1/1 up {0=a=up:active}

 

While I’m able to get it to be in the ‘in’ state, I cant seem to bring it up.

 

Any ideas on how to fix this?

 

Thanks,

 

Glen Aidukas  [Manager IT Infrasctructure]

 

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