[ceph-users] getting rid of incomplete pg errors

Hi. before I descend into what happened and why it happened: I'm talking about a test-cluster so I don't really care about the data in this case. We've recently started upgrading from luminous to nautilus, and for us that means we're retiring ceph-disk in favour of ceph-volume with lvm and dmcrypt. Our setup is in containers and we've got DBs separated from Data. When testing our upgrade-path we discovered that running the host on ubuntu-xenial and the containers on centos-7.7 leads to lvm inside the containers not using lvmetad because it's too old. That in turn means that not running `vgscan --cache` on the host before adding a LV to a VG essentially zeros the metadata for all LVs in that VG. That happened on two out of three hosts for a bunch of OSDs and those OSDs are gone. I have no way of getting them back, they've been overwritten multiple times trying to figure out what went wrong. So now I have a cluster that's got 16 pgs in 'incomplete', 14 of them with 0 objects, 2 with about 150 objects each. I have found a couple of howtos that tell me to use ceph-objectstore-tool to find the pgs on the active osds and I've given that a try, but ceph-objectstore-tool always tells me it can't find the pg I am looking for. Can I tell ceph to re-init the pgs? Do I have to delete the pools and recreate them? There's no data I can't get back in there, I just don't feel like scrapping and redeploying the whole cluster. -- Cheers, Hardy