> Op 20 feb. 2020 om 19:54 heeft Dan van der Ster <dan@xxxxxxxxxxxxxx> het volgende geschreven: > > For those following along, the issue is here: > https://tracker.ceph.com/issues/39525#note-6 > > Somehow single bits are getting flipped in the osdmaps -- maybe > network, maybe memory, maybe a bug. > Weird! But I did see things like this happen before. This was under Hammer and Jewel where I needed to these kind of things. Crashes looked very similar. > To get an osd starting, we have to extract the full osdmap from the > mon, and set it into the crashing osd. So for the osd.666: > > # ceph osd getmap 2982809 -o 2982809 > # ceph-objectstore-tool --op set-osdmap --data-path > /var/lib/ceph/osd/ceph-666/ --file 2982809 > > Some osds had multiple corrupted osdmaps -- so we scriptified the above. Were those corrupted onces in sequence? > As of now our PGs are all active, but we're not confident that this Awesome! Wido > won't happen again (without knowing why the maps were corrupting). > > Thanks to all who helped! > > dan > > > >> On Thu, Feb 20, 2020 at 1:01 PM Dan van der Ster <dan@xxxxxxxxxxxxxx> wrote: >> >> 680 is epoch 2983572 >> 666 crashes at 2982809 or 2982808 >> >> -407> 2020-02-20 11:20:24.960 7f4d931b5b80 10 osd.666 0 add_map_bl >> 2982809 612069 bytes >> -407> 2020-02-20 11:20:24.966 7f4d931b5b80 -1 *** Caught signal (Aborted) ** >> in thread 7f4d931b5b80 thread_name:ceph-osd >> >> So I grabbed 2982809 and 2982808 and am setting them. >> >> Checking if the osds will start with that. >> >> -- dan >> >> >> >>> On Thu, Feb 20, 2020 at 12:47 PM Wido den Hollander <wido@xxxxxxxx> wrote: >>> On 2/20/20 12:40 PM, Dan van der Ster wrote: >>>> Hi, >>>> >>>> My turn. >>>> We suddenly have a big outage which is similar/identical to >>>> http://lists.ceph.com/pipermail/ceph-users-ceph.com/2019-August/036519.html >>>> >>>> Some of the osds are runnable, but most crash when they start -- crc >>>> error in osdmap::decode. >>>> I'm able to extract an osd map from a good osd and it decodes well >>>> with osdmaptool: >>>> >>>> # ceph-objectstore-tool --op get-osdmap --data-path >>>> /var/lib/ceph/osd/ceph-680/ --file osd.680.map >>>> >>>> But when I try on one of the bad osds I get: >>>> >>>> # ceph-objectstore-tool --op get-osdmap --data-path >>>> /var/lib/ceph/osd/ceph-666/ --file osd.666.map >>>> terminate called after throwing an instance of 'ceph::buffer::malformed_input' >>>> what(): buffer::malformed_input: bad crc, actual 822724616 != >>>> expected 2334082500 >>>> *** Caught signal (Aborted) ** >>>> in thread 7f600aa42d00 thread_name:ceph-objectstor >>>> ceph version 13.2.7 (71bd687b6e8b9424dd5e5974ed542595d8977416) mimic (stable) >>>> 1: (()+0xf5f0) [0x7f5ffefc45f0] >>>> 2: (gsignal()+0x37) [0x7f5ffdbae337] >>>> 3: (abort()+0x148) [0x7f5ffdbafa28] >>>> 4: (__gnu_cxx::__verbose_terminate_handler()+0x165) [0x7f5ffe4be7d5] >>>> 5: (()+0x5e746) [0x7f5ffe4bc746] >>>> 6: (()+0x5e773) [0x7f5ffe4bc773] >>>> 7: (()+0x5e993) [0x7f5ffe4bc993] >>>> 8: (OSDMap::decode(ceph::buffer::list::iterator&)+0x160e) [0x7f6000f4168e] >>>> 9: (OSDMap::decode(ceph::buffer::list&)+0x31) [0x7f6000f42e31] >>>> 10: (get_osdmap(ObjectStore*, unsigned int, OSDMap&, >>>> ceph::buffer::list&)+0x1d0) [0x55d30a489190] >>>> 11: (main()+0x5340) [0x55d30a3aae70] >>>> 12: (__libc_start_main()+0xf5) [0x7f5ffdb9a505] >>>> 13: (()+0x3a0f40) [0x55d30a483f40] >>>> Aborted (core dumped) >>>> >>>> >>>> >>>> I think I want to inject the osdmap, but can't: >>>> >>>> # ceph-objectstore-tool --op set-osdmap --data-path >>>> /var/lib/ceph/osd/ceph-666/ --file osd.680.map >>>> osdmap (#-1:b65b78ab:::osdmap.2983572:0#) does not exist. >>>> >>> >>> Have you tried to list which epoch osd.680 is at and which one osd.666 >>> is at? And which one the MONs are at? >>> >>> Maybe there is a difference there? >>> >>> Wido >>> >>>> >>>> How do I do this? >>>> >>>> Thanks for any help! >>>> >>>> dan >>>> _______________________________________________ >>>> ceph-users mailing list -- ceph-users@xxxxxxx >>>> To unsubscribe send an email to ceph-users-leave@xxxxxxx >>>> _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
 |