Yeah, the mtu is on the cluster network’s nic cards are 8982, the ping works with 8954 packets between interfaces. On 2021. Mar 15., at 23:40, Matthew H <matthew.heler@hotmail.com> wrote: Might be an MTU problem, have you checked your network and MTU settings? ________________________________ From: Szabo, Istvan (Agoda) <Istvan.Szabo@agoda.com> Sent: Monday, March 15, 2021 12:08 PM To: Ceph Users <ceph-users@ceph.io> Subject: [ceph-users] millions slow ops on a cluster without load We have a cluster with a huge amount of warnings like this even if nothing is going on in the cluster. It makes mgr physical memory full, mon db maxed out 5 osds can't start :/ [WRN] slow request osd_op(mds.0.537792:26453 43.38 43:1d6c5587:::10000fe56a6.00000000:head [create,setxattr parent (367) in=373b,setxattr layout (30) in=36b] snapc 0=[] RETRY=131 ondisk+retry+write+known_if_redirected+full_force e5532574) initiated 2021-03-15T16:44:18.428585+0100 currently delayed Is there a way to somehow stop it? MDS service stopped also. ________________________________ 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. _______________________________________________ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-leave@ceph.io