[ceph-users] Re: high latency after maintenance

2020-11-09 Thread Marcel Kuiper
Yes the OSDs are all bluestore. So does this mean that we can assign most of the memory to the osd processes by setting the osd_memory_target? > > If your OSDs are all BlueStore, page cache isn’t nearly as important as > with Filestore. > > >> ___

[ceph-users] Re: high latency after maintenance

2020-11-09 Thread Marcel Kuiper
Hi Anthony > > Did you add a bunch of data since then, or change the Ceph release? Do > you have bluefs_buffered_io set to false? > > We did not change ceph release in the meantime. It is very welll possible that the delays were just not noticed during out previous maintenances.

[ceph-users] Re: high latency after maintenance]

2020-11-06 Thread Wout van Heeswijk
, Wout 42on From: Marcel Kuiper Sent: Friday, 6 November 2020 10:23 To: ceph-users@ceph.io Subject: [ceph-users] Re: high latency after maintenance] Hi Anthony Thank you for your respons I am looking at the"OSDs highest latency of write operations&q

[ceph-users] Re: high latency after maintenance]

2020-11-06 Thread Marcel Kuiper
Hi Anthony Thank you for your respons I am looking at the"OSDs highest latency of write operations" panel of the grafana dashboard found in the ceph source in ./monitoring/grafana/dashboards/osds-overview.json. It is a topk graph that uses ceph_osd_op_w_latency_sum /