Hi, We decided to delete the pool before the snaptrim finished after 4 days waiting. Now we have bigger issue, many osd started to flap, 2 of them cannot even restart due after. Did some bluestore fsck on the not started osds and has many messages like this inside: 2021-05-17 18:37:07.176203 7f416d20bec0 10 stupidalloc 0x0x564e4e804f50 init_add_free 0x482d0778000~4000 2021-05-17 18:37:07.176204 7f416d20bec0 10 freelist enumerate_next 0x482d0784000~4000 2021-05-17 18:37:07.176204 7f416d20bec0 10 stupidalloc 0x0x564e4e804f50 init_add_free 0x482d0784000~4000 2021-05-17 18:37:07.176205 7f416d20bec0 10 freelist enumerate_next 0x482d078c000~c000 2021-05-17 18:37:07.176206 7f416d20bec0 10 stupidalloc 0x0x564e4e804f50 init_add_free 0x482d078c000~c000 [root@hk-cephosd-2002 ~]# tail -f /tmp/ceph-osd-44-fsck.log 2021-05-17 18:39:16.466967 7f416d20bec0 20 bluefs _read_random read buffered 0x2cd6e8f~ed6 of 1:0x372e0700000+4200000 2021-05-17 18:39:16.467154 7f416d20bec0 20 bluefs _read_random got 3798 2021-05-17 18:39:16.467179 7f416d20bec0 10 bluefs _read_random h 0x564e4e658500 0x24d6e35~ee2 from file(ino 216551 size 0x43a382d mtime 2021-05-17 13:21:19.839668 bdev 1 allocated 4400000 extents [1:0x35bc7c00000+4400000]) 2021-05-17 18:39:16.467186 7f416d20bec0 20 bluefs _read_random read buffered 0x24d6e35~ee2 of 1:0x35bc7c00000+4400000 2021-05-17 18:39:16.467409 7f416d20bec0 20 bluefs _read_random got 3810 and uh oh, missing shared_blob I've set back buffered_io to false back because when restart the osds always had to wait to fix degraded pgs. Many of the SSDs are smashing at the moment on 100% and don't really know what to do to stop the process and bring back the 2 ssds :/ Some paste: https://justpaste.it/9bj3a Some metric (each column is 1 server metric, total 3 servers): How it is smashing the ssds: https://i.ibb.co/x3xm0Rj/ssds.png IOWAIT Super high due to ssd utilization: https://i.ibb.co/683TR9y/iowait.png Capacity seems coming back: https://i.ibb.co/mz4Lq2r/space.png Thank you the help. ________________________________ This message is confidential and is for the sole use of the intended recipient(s). It may also be privileged or otherwise protected by copyright or other legal rules. If you have received it by mistake please let us know by reply email and delete it from your system. It is prohibited to copy this message or disclose its content to anyone. Any confidentiality or privilege is not waived or lost by any mistaken delivery or unauthorized disclosure of the message. All messages sent to and from Agoda may be monitored to ensure compliance with company policies, to protect the company's interests and to remove potential malware. Electronic messages may be intercepted, amended, lost or deleted, or contain viruses.