Hello, the best practice is to simply shut down the whole cluster
starting form the clients, monitors the mds and the osd. You do your
maintenance then you bring back everyone starting from monitors, mds,
osd. clients.
Other while the osds missing will lead to a reconstruction of your
cluster that will not end with the return of the "faulty" osd(s). In the
case you turn off everything related to ceph cluster then it will be
transparent for the monitors and will not have to deal with partial
reconstruction to clean up and rescrubing of the returned OSD(s).
best regards.
Alphe Salas
T.I ingeneer.
On 06/13/2014 04:56 AM, David wrote:
Hi,
We’re going to take down one OSD node for maintenance (add cpu + ram) which
might take 10-20 minutes.
What’s the best practice here in a production cluster running dumpling
0.67.7-1~bpo70+1?
Kind Regards,
David Majchrzak
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