Thanks, Eugen. It is similar in the sense that the mgr is getting OOM-killed. It started happening in our cluster after the upgrade to 16.2.14. We haven't had this issue with earlier Pacific releases. /Z On Tue, 21 Nov 2023, 21:53 Eugen Block, <eblock@xxxxxx> wrote: > Just checking it on the phone, but isn’t this quite similar? > > https://tracker.ceph.com/issues/45136 > > Zitat von Zakhar Kirpichenko <zakhar@xxxxxxxxx>: > > > Hi, > > > > I'm facing a rather new issue with our Ceph cluster: from time to time > > ceph-mgr on one of the two mgr nodes gets oom-killed after consuming over > > 100 GB RAM: > > > > [Nov21 15:02] tp_osd_tp invoked oom-killer: > > gfp_mask=0x100cca(GFP_HIGHUSER_MOVABLE), order=0, oom_score_adj=0 > > [ +0.000010] oom_kill_process.cold+0xb/0x10 > > [ +0.000002] [ pid ] uid tgid total_vm rss pgtables_bytes > > swapents oom_score_adj name > > [ +0.000008] > > > oom-kill:constraint=CONSTRAINT_NONE,nodemask=(null),cpuset=504d37b566d9fd442d45904a00584b4f61c93c5d49dc59eb1c948b3d1c096907,mems_allowed=0-1,global_oom,task_memcg=/docker/3826be8f9115479117ddb8b721ca57585b2bdd58a27c7ed7b38e8d83eb795957,task=ceph-mgr,pid=3941610,uid=167 > > [ +0.000697] Out of memory: Killed process 3941610 (ceph-mgr) > > total-vm:146986656kB, anon-rss:125340436kB, file-rss:0kB, shmem-rss:0kB, > > UID:167 pgtables:260356kB oom_score_adj:0 > > [ +6.509769] oom_reaper: reaped process 3941610 (ceph-mgr), now > > anon-rss:0kB, file-rss:0kB, shmem-rss:0kB > > > > The cluster is stable and operating normally, there's nothing unusual > going > > on before, during or after the kill, thus it's unclear what causes the > mgr > > to balloon, use all RAM and get killed. Systemd logs aren't very helpful: > > they just show normal mgr operations until it fails to allocate memory > and > > gets killed: https://pastebin.com/MLyw9iVi > > > > The mgr experienced this issue several times in the last 2 months, and > the > > events don't appear to correlate with any other events in the cluster > > because basically nothing else happened at around those times. How can I > > investigate this and figure out what's causing the mgr to consume all > > memory and get killed? > > > > I would very much appreciate any advice! > > > > Best regards, > > Zakhar > > _______________________________________________ > > 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 > _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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