Hi Philipp,

does the effect persist if you perform OSD restart once again shortly after the first one?

Do you have any custom rocksdb/bluestore settings? "ceph config dump"

From the log you attached I can see 30 min gap during the load:

2022-04-10T11:42:51.607+0200 7fe6e8ba2f00  0 bluestore(/var/lib/ceph/osd/ceph-12) _open_db_and_around read-only:0 repair:0 2022-04-10T12:12:36.924+0200 7fe6e8ba2f00  0 _get_class not permitted to load kvs


but you mentioned that it took more than an hour for OSD to load. Is there any other long-running stuff on startup? Or you just overestimated loading time? ;)


Thanks,

Igor


On 4/10/2022 10:18 PM, VELARTIS GmbH | Philipp Dürhammer wrote:
Here is the full log after the osd was up successfully (but looong time reading 
100MB/sec)

v2022-04-10T11:42:44.219+0200 7f68961f8700 -1 received  signal: Terminated from 
/sbin/init noibrs noibpb nopti nospectre_v2 nospec_store_bypass_disable 
no_stf_barrier  (PID: 1) UID: 0
2022-04-10T11:42:44.219+0200 7f68961f8700 -1 osd.12 15550 *** Got signal 
Terminated ***
2022-04-10T11:42:44.219+0200 7f68961f8700 -1 osd.12 15550 *** Immediate 
shutdown (osd_fast_shutdown=true) ***
2022-04-10T11:42:47.007+0200 7fe6e8ba2f00  0 set uid:gid to 64045:64045 
(ceph:ceph)
2022-04-10T11:42:47.007+0200 7fe6e8ba2f00  0 ceph version 16.2.7 
(f9aa029788115b5df5eeee328f584156565ee5b7) pacific (stable), process ceph-osd, 
pid 1347448
2022-04-10T11:42:47.007+0200 7fe6e8ba2f00  0 pidfile_write: ignore empty 
--pid-file
2022-04-10T11:42:47.575+0200 7fe6e8ba2f00  0 starting osd.12 osd_data 
/var/lib/ceph/osd/ceph-12 /var/lib/ceph/osd/ceph-12/journal
2022-04-10T11:42:47.603+0200 7fe6e8ba2f00  0 load: jerasure load: lrc load: isa
2022-04-10T11:42:48.247+0200 7fe6e8ba2f00  0 osd.12:0.OSDShard using op 
scheduler ClassedOpQueueScheduler(queue=WeightedPriorityQueue, cutoff=196)
2022-04-10T11:42:48.555+0200 7fe6e8ba2f00  0 osd.12:1.OSDShard using op 
scheduler ClassedOpQueueScheduler(queue=WeightedPriorityQueue, cutoff=196)
2022-04-10T11:42:48.863+0200 7fe6e8ba2f00  0 osd.12:2.OSDShard using op 
scheduler ClassedOpQueueScheduler(queue=WeightedPriorityQueue, cutoff=196)
2022-04-10T11:42:49.167+0200 7fe6e8ba2f00  0 osd.12:3.OSDShard using op 
scheduler ClassedOpQueueScheduler(queue=WeightedPriorityQueue, cutoff=196)
2022-04-10T11:42:49.463+0200 7fe6e8ba2f00  0 osd.12:4.OSDShard using op 
scheduler ClassedOpQueueScheduler(queue=WeightedPriorityQueue, cutoff=196)
2022-04-10T11:42:50.191+0200 7fe6e8ba2f00  0 osd.12:5.OSDShard using op 
scheduler ClassedOpQueueScheduler(queue=WeightedPriorityQueue, cutoff=196)
2022-04-10T11:42:50.931+0200 7fe6e8ba2f00  0 osd.12:6.OSDShard using op 
scheduler ClassedOpQueueScheduler(queue=WeightedPriorityQueue, cutoff=196)
2022-04-10T11:42:51.607+0200 7fe6e8ba2f00  0 osd.12:7.OSDShard using op 
scheduler ClassedOpQueueScheduler(queue=WeightedPriorityQueue, cutoff=196)
2022-04-10T11:42:51.607+0200 7fe6e8ba2f00  0 
bluestore(/var/lib/ceph/osd/ceph-12) _open_db_and_around read-only:0 repair:0
2022-04-10T12:12:36.924+0200 7fe6e8ba2f00  0 _get_class not permitted to load 
kvs
2022-04-10T12:12:36.924+0200 7fe6e8ba2f00  0 <cls> 
./src/cls/cephfs/cls_cephfs.cc:201: loading cephfs
2022-04-10T12:12:36.924+0200 7fe6e8ba2f00  0 _get_class not permitted to load 
sdk
2022-04-10T12:12:36.928+0200 7fe6e8ba2f00  0 _get_class not permitted to load 
lua
2022-04-10T12:12:36.940+0200 7fe6e8ba2f00  0 <cls> 
./src/cls/hello/cls_hello.cc:316: loading cls_hello
2022-04-10T12:12:36.940+0200 7fe6e8ba2f00  0 osd.12 15550 crush map has 
features 432629239337189376, adjusting msgr requires for clients
2022-04-10T12:12:36.940+0200 7fe6e8ba2f00  0 osd.12 15550 crush map has 
features 432629239337189376 was 8705, adjusting msgr requires for mons
2022-04-10T12:12:36.940+0200 7fe6e8ba2f00  0 osd.12 15550 crush map has 
features 3314933000854323200, adjusting msgr requires for osds

-----Ursprüngliche Nachricht-----
Von: VELARTIS GmbH | Philipp Dürhammer <p.duerham...@velartis.at>
Gesendet: Sonntag, 10. April 2022 11:49
An: ceph-users@ceph.io
Betreff: [ceph-users] osd needs moer then one hour to start with heavy reads

Hi,

allways when i try the start / restart an osd it takes more then one hour to 
start up. Meanwhile I see more then 100Mb read on the osd the whole time. (it's 
an enterprise ssd) logs hows:
2022-04-10T11:42:44.219+0200 7f68961f8700 -1 osd.12 15550 *** Immediate 
shutdown (osd_fast_shutdown=true) ***
2022-04-10T11:42:47.007+0200 7fe6e8ba2f00  0 set uid:gid to 64045:64045 
(ceph:ceph)
2022-04-10T11:42:47.007+0200 7fe6e8ba2f00  0 ceph version 16.2.7 
(f9aa029788115b5df5eeee328f584156565ee5b7) pacific (stable), process ceph-osd, 
pid 1347448
2022-04-10T11:42:47.007+0200 7fe6e8ba2f00  0 pidfile_write: ignore empty 
--pid-file
2022-04-10T11:42:47.575+0200 7fe6e8ba2f00  0 starting osd.12 osd_data 
/var/lib/ceph/osd/ceph-12 /var/lib/ceph/osd/ceph-12/journal
2022-04-10T11:42:47.603+0200 7fe6e8ba2f00  0 load: jerasure load: lrc load: isa
2022-04-10T11:42:48.247+0200 7fe6e8ba2f00  0 osd.12:0.OSDShard using op 
scheduler ClassedOpQueueScheduler(queue=WeightedPriorityQueue, cutoff=196)
2022-04-10T11:42:48.555+0200 7fe6e8ba2f00  0 osd.12:1.OSDShard using op 
scheduler ClassedOpQueueScheduler(queue=WeightedPriorityQueue, cutoff=196)
2022-04-10T11:42:48.863+0200 7fe6e8ba2f00  0 osd.12:2.OSDShard using op 
scheduler ClassedOpQueueScheduler(queue=WeightedPriorityQueue, cutoff=196)
2022-04-10T11:42:49.167+0200 7fe6e8ba2f00  0 osd.12:3.OSDShard using op 
scheduler ClassedOpQueueScheduler(queue=WeightedPriorityQueue, cutoff=196)
2022-04-10T11:42:49.463+0200 7fe6e8ba2f00  0 osd.12:4.OSDShard using op 
scheduler ClassedOpQueueScheduler(queue=WeightedPriorityQueue, cutoff=196)
2022-04-10T11:42:50.191+0200 7fe6e8ba2f00  0 osd.12:5.OSDShard using op 
scheduler ClassedOpQueueScheduler(queue=WeightedPriorityQueue, cutoff=196)
2022-04-10T11:42:50.931+0200 7fe6e8ba2f00  0 osd.12:6.OSDShard using op 
scheduler ClassedOpQueueScheduler(queue=WeightedPriorityQueue, cutoff=196)
2022-04-10T11:42:51.607+0200 7fe6e8ba2f00  0 osd.12:7.OSDShard using op 
scheduler ClassedOpQueueScheduler(queue=WeightedPriorityQueue, cutoff=196)
2022-04-10T11:42:51.607+0200 7fe6e8ba2f00  0 
bluestore(/var/lib/ceph/osd/ceph-12) _open_db_and_around read-only:0 repair:0
(END)
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