[Starlingx-discuss] Duplex: CEPH HEALTH_WARN after initial unlock of controller-0

[Michel Thebeau]

Hi Marcel,

Until the second node of the duplex configuration is configured and
unlocked one expects the ceph cluster would be "unhealthy", yes.

===

It seems to me that the documentation is not obvious on that subject,
but I'm not sure it needs to be.  If I understand the examples
correctly, on AIO-Simplex (one node), we set the "Ceph pool replication
to 1.  This step applies to AIO-SX only.", and therefore we expect ceph
to become healthy for the simplex configuration.  But with duplex, your
pool replication is 2... so it is waiting for the second cluster node
to come up.

Duplex instruction:
https://wiki.openstack.org/wiki/StarlingX/Containers/InstallationOnAIOD
X#Configure_Ceph_for_Controller-0

Duplex then refers to a portion of simplex instruction for ceph
configuration
https://wiki.openstack.org/wiki/StarlingX/Containers/Installation#Confi
gure_Ceph_for_Controller-0

M


On Thu, 2019-05-02 at 15:20 +0200, Marcel Schaible wrote:
> Hi,
> 
> after unlocking controller-0 in a Duplex configuration ceph shows an
> HEALTH_WARN:
> 
> [wrsroot at controller-0 ~(keystone_admin)]$ ceph -s
>     cluster b6a2009b-7857-4bb6-835a-479b6ececb63
>      health HEALTH_WARN
>             448 pgs degraded
>             448 pgs stuck unclean
>             448 pgs undersized
>             recovery 1116/2232 objects degraded (50.000%)
>      monmap e1: 1 mons at {controller=172.27.1.100:6789/0}
>             election epoch 5, quorum 0 controller
>      osdmap e22: 2 osds: 1 up, 1 in
>             flags sortbitwise,require_jewel_osds
>       pgmap v1976: 448 pgs, 7 pools, 1588 bytes data, 1116 objects
>             91396 kB used, 952 GB / 952 GB avail
>             1116/2232 objects degraded (50.000%)
>                  448 active+undersized+degraded
> 
> Is this expected and when should the health status switch to
> HEALTH_OK?
> 
> We use the image from 20190429.
> 
> Thanks
> 
> Marcel
> 
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