On Fri, Jun 22, 2012 at 1:23 PM, John Axel Eriksson <john@xxxxxxxxx> wrote: > I guess this has been asked before, I'm just new to the list and > wondered whether it's possible to do > rolling upgrades of mons, osds and radosgw? We will soon be in the > process of migrating from our current > storage solution to Ceph/RGW. We will only use the object storage, > actually mainly the S3-interface radosgw > supplies. > > Right now we have a very small test-installation - 1 mon, 2 osds where > the mon also runs rgw. Next week I've > heard that 0.48 might be released, if we upgrade to that, do we have > to shut down the cluster during the upgrade > or can we do a rolling upgrade while still responding to PUTs and > GETs? If not possible yet, is this in the pipeline? > > Best, > John Should not be possible with only one mon, you need at least three for continuous operation, so you can add them right now and then try to upgrade cluster nodes one by one. By the way, does recent upgrade of osd` on-disk content means near stabilization of data format(which means theoretically flawless per-node upgrade)? If so, is there any approximate times? About one and half months ago some in-list discussion mentioned such stabilization as very soon(tm), so I`ll be happy on more exact timeline before pushing ceph-based infrastructure into production. > -- > To unsubscribe from this list: send the line "unsubscribe ceph-devel" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
