On Fri, May 6, 2016 at 12:41 PM, Sage Weil <sweil@xxxxxxxxxx> wrote: > This PR > > https://github.com/ceph/ceph/pull/8975 > > removes the 'rados cppool' command. The main problem is that the command > does not make a faithful copy of all data because it doesn't preserve the > snapshots (and snapshot related metadata). That means if you copy an RBD > pool it will render the images somewhat broken (snaps won't be present and > won't work properly). It also doesn't preserve the user_version field > that some librados users may rely on. > > Since it's obscure and of limited use, this PR just removes it. > > Alternatively, we could add safeguards so that it refuses to make a copy > if there are any selfmanaged_snaps, and/or generate some warnings. > > Any objections? I prefer the alternative. I found this command pretty useful for testing config upgrade scenarios with rgw. After generating config scenarios in older versions, I used this command to store the config on another pool, and then I could get the different config whenever needed. Yehuda -- 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
