Thanks for the replies everyone! > On 30 Sep 2024, at 13:10, Anthony D'Atri <a...@dreamsnake.net> wrote: > > Remember that slow ops are a top of the iceberg thing, you only see ones that > crest above 30s
So far metrics of the hosted VMs show no other I/O slowdown except when these hiccups occur. > On 30 Sep 2024, at 13:35, Igor Fedotov <igor.fedo...@croit.io> wrote: > > there is no log attached to your post, you better share it via some other > means. > > BTW - what log did you mean - monitor or OSD one? > > It would be nice to have logs for a couple of OSDs suffering from slow ops, > preferably relevant to two different cases. Sorry, the attachments have apparently been stripped. See here for one incident (they all look the same but I can share more if relevant) monitor log, affected osd logs, iostat log: https://gist.github.com/sauerbein/5a485a6d2546475912709743e3cfbf4b Let me know if you need any other logs to analyse! > On 30 Sep 2024, at 14:34, Alexander Schreiber <a...@thangorodrim.ch> wrote: > > One cause for "slow ops" I discovered are networking issues. I had slow > ops across my entire cluster (interconnected with 10G). Turns out the > switch was bad an achieved < 10 MBit/s on one of the 10G links. > Replaced the switch, tested the links again - got full 10G connectivity > and the slow ops disappeared. Thanks for the idea. The hosts are connected to two switches with fail-over bonding, normally communicating via the same switch. I will move them all over to the second switch to rule out a switch issue. Best regards, Tim _______________________________________________ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-le...@ceph.io
