[ceph-users] Re: Cephfs metadata and MDS on same node

Hi Jesper, It could make sens only if: 1. the metadata the client's asking for was not already cached in RAM 2. the metadata pool was hosted on very low latency devices like NVMes 3. you could make sure that each client's metadata requests would be served from PGs for which the primary OSD is

[ceph-users] Possible to update from luminous 12.2.8 to nautilus latest?

Hi, Is it possible to do a big jump or needs to go slower to luminous latest, then mimic latest, then nautilus latest? Istvan Szabo Senior Infrastructure Engineer --- Agoda Services Co., Ltd. e: istvan.sz...@agoda.com

[ceph-users] Re: Possible to update from luminous 12.2.8 to nautilus latest?

On 3/26/21 6:35 AM, Szabo, Istvan (Agoda) wrote: Hi, Is it possible to do a big jump or needs to go slower to luminous latest, then mimic latest, then nautilus latest? You do that at once. But do read the upgrade documentation [1]: Especially this part: If your cluster was originally instal

[ceph-users] Re: [Suspicious newsletter] bucket index and WAL/DB

This is exactly the problem, so we thought about not risking losing the entire host by using both NVMes. From what I understand the bucket index data is stored in the omap, which is stored in the block.db, making it unnecessary to create a separate OSD for the bucket index. But I didn't find anyth

[ceph-users] Ceph CFP Coordination for 2021

Hi everyone, I cleaned up the CFP coordination etherpad with some events coming up. Please add other events you think the community should be considering proposing content on Ceph or adjacent projects like Rook. KubeCon NA CFP, for example, is ending April 11. Take a look: https://pad.ceph.com/p

[ceph-users] OpenSSL security update for Octopus container?

Hi, I am running a Ceph Octopus cluster in version 15.2.10 setup with the cephadm orchestrator and official Docker hub container images. Yesterday an important security fix was released for libssl and is already packaged for all major distributions. I tried to run "ceph orch upgrade check docker

[ceph-users] Re: Cephfs metadata and MDS on same node

> On Mar 26, 2021, at 6:31 AM, Stefan Kooman wrote: > > On 3/9/21 4:03 PM, Jesper Lykkegaard Karlsen wrote: >> Dear Ceph’ers >> I am about to upgrade MDS nodes for Cephfs in the Ceph cluster (erasure code >> 8+3 ) I am administrating. >> Since they will get plenty of memory and CPU cores, I wa

[ceph-users] Do I need to update ceph.conf and restart each OSD after adding more MONs?

Hi, Do I need to update ceph.conf and restart each OSD after adding more MONs? This is with 15.2.8 deployed by cephadm. When adding MON, "mon_host" should be updated accordingly. Given [1], is that update "the monitor cluster’s centralized configuration database" or "runtime overrides set by an a

[ceph-users] Re: [Suspicious newsletter] Re: [Suspicious newsletter] bucket index and WAL/DB

Makes sense what you are talking about, I had the same confusing like you, finally went with redhat setup: https://hubb.blob.core.windows.net/c2511cea-81c5-4386-8731-cc444ff806df-public/resources/Optimize%20Ceph%20object%20storage%20for%20production%20in%20multisite%20clouds.pdf Slide 27. Istva

[ceph-users] Re: Cephfs metadata and MDS on same node

On 3/9/21 4:03 PM, Jesper Lykkegaard Karlsen wrote: Dear Ceph’ers I am about to upgrade MDS nodes for Cephfs in the Ceph cluster (erasure code 8+3 ) I am administrating. Since they will get plenty of memory and CPU cores, I was wondering if it would be a good idea to move metadata OSDs (NVMe'