Re: All pgs with -> up [0] acting [0], new cluster installation

[alberto ayllon <albertoayllonces@xxxxxxxxx>]

Maybe this can help to get the origin of the problem.

If I run  ceph pg dump, and the end of the response i get:

osdstat kbused kbavail kb hb in hb out

0 36688 5194908 5231596 [1,2,3,4,5,6,7,8] []

1 34004 5197592 5231596 [] []

2 34004 5197592 5231596 [1] []

3 34004 5197592 5231596 [0,1,2,4,5,6,7,8] []

4 34004 5197592 5231596 [1,2] []

5 34004 5197592 5231596 [1,2,4] []

6 34004 5197592 5231596 [0,1,2,3,4,5,7,8] []

7 34004 5197592 5231596 [1,2,4,5] []

8 34004 5197592 5231596 [1,2,4,5,7] []

 sum 308720 46775644 47084364

Please someone can help me?

2015-07-13 11:45 GMT+02:00 alberto ayllon <albertoayllonces@xxxxxxxxx>:

Hello everybody and thanks for your help.

Hello, I'm newbie in CEPH, I'm trying to install a CEPH cluster with test purpose.

I had just installed a CEPH cluster with three VMs (ubuntu 14.04), each one has one mon daemon and three OSDs, also each server has 3 disk.

Cluster has only one poll (rbd) with pg and pgp_num = 280, and "osd pool get rbd size = 2".

I made cluster's installation with  ceph-deploy, ceph version is "0.94.2"

I think cluster's OSDs are having peering problems, because if I run ceph status, it returns:

# ceph status

    cluster d54a2216-b522-4744-a7cc-a2106e1281b6

     health HEALTH_WARN

            280 pgs degraded

            280 pgs stuck degraded

            280 pgs stuck unclean

            280 pgs stuck undersized

            280 pgs undersized

     monmap e3: 3 mons at {ceph01=172.16.70.158:6789/0,ceph02=172.16.70.159:6789/0,ceph03=172.16.70.160:6789/0}

            election epoch 38, quorum 0,1,2 ceph01,ceph02,ceph03

     osdmap e46: 9 osds: 9 up, 9 in

      pgmap v129: 280 pgs, 1 pools, 0 bytes data, 0 objects

            301 MB used, 45679 MB / 45980 MB avail

                 280 active+undersized+degraded

And for all pgs, the command "ceph pg map X.yy" returns something like:

osdmap e46 pg 0.d7 (0.d7) -> up [0] acting [0]

As I know "Acting Set" and "Up Set" must have the same value, but as they are equal to 0, there are not defined OSDs to

stores pgs replicas, and I think this is why all pg are in "active+undersized+degraded" state.

Has anyone any idea of what I have to do for  "Active Set" and "Up Set" reaches correct values.

Thanks a lot!

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