Re: [ceph-users] OSD replacement causes slow requests

2019-07-24 Thread Eugen Block
Hi Wido, thanks for your response. Have you tried to dump the historic slow ops on the OSDs involved to see what is going on? $ ceph daemon osd.X dump_historic_slow_ops Good question, I don't recall doing that. Maybe my colleague did but he's on vacation right now. ;-) But to be clear,

Re: [ceph-users] OSD replacement causes slow requests

2019-07-24 Thread Wido den Hollander
On 7/18/19 12:21 PM, Eugen Block wrote: > Hi list, > > we're facing an unexpected recovery behavior of an upgraded cluster > (Luminous -> Nautilus). > > We added new servers with Nautilus to the existing Luminous cluster, so > we could first replace the MONs step by step. Then we moved the old

[ceph-users] OSD replacement causes slow requests

2019-07-18 Thread Eugen Block
Hi list, we're facing an unexpected recovery behavior of an upgraded cluster (Luminous -> Nautilus). We added new servers with Nautilus to the existing Luminous cluster, so we could first replace the MONs step by step. Then we moved the old servers to a new root in the crush map and then