Some time ago we had a small change in name resolution so I thought, maybe the orchestrator can't connect via ssh anymore. But I tried all the steps in https://docs.ceph.com/docs/master/cephadm/troubleshooting/#ssh-errors . The only thing that's slightly suspicous is that, it said, it added the host key to known hosts. But since I tried via "cephadm shell" I guess, the known hosts are just not replicated to these containers. ssh works, too. (And I would have suspected that I get a warning if that failed)
I don't see any information about the orchestrator module having crashed. It's running as always.
From the the prior problem I had some issues in my cephfs pools. So, maybe there's something broken in the .mgr pool? Could that be a reason for this behaviour? I googled a while but didn't find any way how to check that explicitly.
On 15.05.23 19:15, Adam King wrote:
This is sort of similar to what I said in a previous email, but the only way I've seen this happen in other setups is through hanging cephadm commands. The debug process has been, do a mgr failover, wait a few minutes, see in "ceph orch ps" and "ceph orch device ls" which hosts have and have not been refreshed (the REFRESHED column should be some lower value on the hosts where it refreshed), go to the hosts where it did not refresh and check "ps aux | grep cephadm" looking for long running (and therefore most likely hung) processes. I would still expect that's the most likely thing you're experiencing here. I haven't seen any other causes for cephadm to not refresh unless the module crashed, but that would be explicitly stated in the cluster health. On Mon, May 15, 2023 at 11:44 AM Thomas Widhalm <widhalmt@xxxxxxxxxxxxx> wrote:Hi, I tried a lot of different approaches but I didn't have any success so far. "ceph orch ps" still doesn't get refreshed. Some examples: mds.mds01.ceph06.huavsw ceph06 starting - - - - <unknown> <unknown> <unknown> mds.mds01.ceph06.rrxmks ceph06 error 4w ago 3M - - <unknown> <unknown> <unknown> mds.mds01.ceph07.omdisd ceph07 error 4w ago 4M - - <unknown> <unknown> <unknown> mds.mds01.ceph07.vvqyma ceph07 starting - - - - <unknown> <unknown> <unknown> mgr.ceph04.qaexpv ceph04 *:8443,9283 running (4w) 4w ago 10M 551M - 17.2.6 9cea3956c04b 33df84e346a0 mgr.ceph05.jcmkbb ceph05 *:8443,9283 running (4w) 4w ago 4M 441M - 17.2.6 9cea3956c04b 1ad485df4399 mgr.ceph06.xbduuf ceph06 *:8443,9283 running (4w) 4w ago 4M 432M - 17.2.6 9cea3956c04b 5ba5fd95dc48 mon.ceph04 ceph04 running (4w) 4w ago 4M 223M 2048M 17.2.6 9cea3956c04b 8b6116dd216f mon.ceph05 ceph05 running (4w) 4w ago 4M 326M 2048M 17.2.6 9cea3956c04b 70520d737f29 Debug Log doesn't show anything that could help me, either. 2023-05-15T14:48:40.852088+0000 mgr.ceph05.jcmkbb (mgr.83897390) 1376 : cephadm [INF] Schedule start daemon mds.mds01.ceph04.hcmvae 2023-05-15T14:48:43.620700+0000 mgr.ceph05.jcmkbb (mgr.83897390) 1380 : cephadm [INF] Schedule redeploy daemon mds.mds01.ceph04.hcmvae 2023-05-15T14:48:45.124822+0000 mgr.ceph05.jcmkbb (mgr.83897390) 1392 : cephadm [INF] Schedule start daemon mds.mds01.ceph04.krxszj 2023-05-15T14:48:46.493902+0000 mgr.ceph05.jcmkbb (mgr.83897390) 1394 : cephadm [INF] Schedule redeploy daemon mds.mds01.ceph04.krxszj 2023-05-15T15:05:25.637079+0000 mgr.ceph05.jcmkbb (mgr.83897390) 2629 : cephadm [INF] Saving service mds.mds01 spec with placement count:2 2023-05-15T15:07:27.625773+0000 mgr.ceph05.jcmkbb (mgr.83897390) 2780 : cephadm [INF] Saving service mds.fs_name spec with placement count:3 2023-05-15T15:07:42.120912+0000 mgr.ceph05.jcmkbb (mgr.83897390) 2795 : cephadm [INF] Saving service mds.mds01 spec with placement count:3 I'm seeing all the commands I give but I don't get any more information on why it's not actually happening. I tried to change different scheduling mechanisms. Host, Tag, unmanaged and back again. I turned off orchestration and resumed. I failed mgr. I even had full cluster stops (in the past). I made sure all daemons run the same version. (If you remember, upgrade failed underway). So my only way of getting daemons only is manually. I added two more hosts, tagged them. But there isn't a single daemon started there. Could you help me again with how to debug orchestration not working? On 04.05.23 15:12, Thomas Widhalm wrote:Thanks. I set the log level to debug, try a few steps and then come back. On 04.05.23 14:48, Eugen Block wrote:Hi, try setting debug logs for the mgr: ceph config set mgr mgr/cephadm/log_level debug This should provide more details what the mgr is trying and where it's failing, hopefully. Last week this helped to identify an issue between a lower pacific issue for me. Do you see anything in the cephadm.log pointing to the mgr actually trying something? Zitat von Thomas Widhalm <widhalmt@xxxxxxxxxxxxx>:Hi, I'm in the process of upgrading my cluster from 17.2.5 to 17.2.6 but the following problem existed when I was still everywhere on 17.2.5 . I had a major issue in my cluster which could be solved with a lot of your help and even more trial and error. Right now it seems that most is already fixed but I can't rule out that there's still some problem hidden. The very issue I'm asking about started during the repair. When I want to orchestrate the cluster, it logs the command but it doesn't do anything. No matter if I use ceph dashboard or "ceph orch" in "cephadm shell". I don't get any error message when I try to deploy new services, redeploy them etc. The log only says "scheduled" and that's it. Same when I change placement rules. Usually I use tags. But since they don't work anymore, too, I tried host and umanaged. No success. The only way I can actually start and stop containers is via systemctl from the host itself. When I run "ceph orch ls" or "ceph orch ps" I see services I deployed for testing being deleted (for weeks now). Ans especially a lot of old MDS are listed as "error" or "starting". The list doesn't match reality at all because I had to start them by hand. I tried "ceph mgr fail" and even a complete shutdown of the whole cluster with all nodes including all mgs, mds even osd - everything during a maintenance window. Didn't change anything. Could you help me? To be honest I'm still rather new to Ceph and since I didn't find anything in the logs that caught my eye I would be thankful for hints how to debug. Cheers, Thomas -- http://www.widhalm.or.at GnuPG : 6265BAE6 , A84CB603 Threema: H7AV7D33 Telegram, Signal: widhalmt@xxxxxxxxxxxxx_______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx_______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx_______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx_______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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