[ceph-users] Re: 1 clients failing to respond to cache pressure (quincy:17.2.6)

2024-01-27 Thread Frank Schilder
Hi Özkan, > ... The client is actually at idle mode and there is no reason to fail at > all. ... if you re-read my message, you will notice that I wrote that - its not the client failing, its a false positive error flag that - is not cleared for idle clients. You seem to encounter exactly this

[ceph-users] Quite important: How do I restart a small cluster using cephadm at 18.2.1

2024-01-27 Thread Carl J Taylor
Hi, Due to idiotic behaviour on my part I made a mistake while replacing some disks in our data centre and our cluster ended up all powered off! I have been using ceph for many years (since firefly) but only recently upgraded to reef and moved to the cephadm / podman setup. I am trying to figure

[ceph-users] Re: Quite important: How do I restart a small cluster using cephadm at 18.2.1

2024-01-27 Thread Jayanth Reddy
Hello Carl, What do you mean by powered off? Is the OS booted up and online? Was your disk activity for the OS disk or the disks to which OSDs are deployed? If your OSs are online, all of the daemons should come online automatically. Sometimes when my OSDs are not coming online and assuming rest

[ceph-users] Re: 1 clients failing to respond to cache pressure (quincy:17.2.6)

2024-01-27 Thread Özkan Göksu
Thank you Frank. My focus is actually performance tuning. After your mail, I started to investigate client-side. I think the kernel tunings work great now. After the tunings I didn't get any warning again. Now I will continue with performance tunings. I decided to distribute subvolumes across mu

[ceph-users] crushmap rules :: host selection

2024-01-27 Thread Adrian Sevcenco
Hi! I'm new with ceph and i struggle to make a mapping between my current storage knowledge and ceph... So, i will state my understanding of the context and the question so please correct me with anything that i got wrong :) So, files (or pieces of files) are put in PGs that are given sections o

[ceph-users] Re: crushmap rules :: host selection

2024-01-27 Thread Anthony D'Atri
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