On 23/08/2019 22:14, Paul Emmerich wrote: > On Fri, Aug 23, 2019 at 3:54 PM Florian Haas <[email protected]> wrote: >> >> On 23/08/2019 13:34, Paul Emmerich wrote: >>> Is this reproducible with crushtool? >> >> Not for me. >> >>> ceph osd getcrushmap -o crushmap >>> crushtool -i crushmap --update-item XX 1.0 osd.XX --loc host >>> hostname-that-doesnt-exist-yet -o crushmap.modified >>> Replacing XX with the osd ID you tried to add. >> >> Just checking whether this was intentional. As the issue pops up when >> adding an new OSD *on* a new host, not moving an existing OSD *to* a new >> host, I would have used --add-item here. Is there a specific reason why >> you're suggesting to test with --update-item? > > yes, update should map to create or move which it should use internally > >> >> At any rate, I tried with multiple different combinations (this is on a >> 12.2.12 test cluster; I can't test this in production): > > which also ran into this bug? The idea of using crushtool is to not > crash your production cluster but just the local tool.
Ah, gotcha. I thought you wanted me to be able to at least do "ceph osd setcrushmap" with the resulting crushmap, which would require a running cluster. So yes, doing this completely offline shows that you're definitely on to something. I am able to crash crushtool with the original crushmap, and what it appears to be falling over on is a choose_args map in there. I've updated the bug report with this comment: https://tracker.ceph.com/issues/40029#note-11 It would seem that there are two workarounds at this stage for pre-Nautilus users with a choose_args map in their crushmap, and who for some reason are unable to upgrade to Nautilus yet: 1. Add host buckets manually before adding new OSDs. 2. Drop any choose_args map from their crushmap. As it happens I am not aware of any way to do #2 other than - using getcrushmap, - decompiling the crushmap, - dropping the choose_args map from the textual representation of the crushmap, - recompiling, and then - using setcrushmap. Are you, by any chance? Thanks again for your help! Cheers, Florian _______________________________________________ ceph-users mailing list -- [email protected] To unsubscribe send an email to [email protected]
