Hrmm that is strange. We set it via /etc/ceph/ceph.conf, not the config framework. Maybe try that? -- dan On Wed, Jul 15, 2020 at 9:59 AM Frank Schilder <frans@xxxxxx> wrote: > > Hi Dan, > > it still does not work. When I execute > > # ceph config set global mon_osd_down_out_subtree_limit host > 2020-07-15 09:17:11.890 7f36cf7fe700 -1 set_mon_vals failed to set mon_osd_down_out_subtree_limit = host: Configuration option 'mon_osd_down_out_subtree_limit' may not be modified at runtime > > I get now a warning that one cannot change the value at run time. However, a restart of all monitors still does not apply the value: > > # ceph config show mon.ceph-01 | grep -e NAME -e mon_osd_down_out_subtree_limit | sed -e "s/ */\t/g" > NAME VALUE SOURCE OVERRIDES IGNORES > mon_osd_down_out_subtree_limit rack default mon > > so the setting in the config data base is still ignored. Any ideas? I cannot shut down the entire cluster for something that simple. > > Best regards, > ================= > Frank Schilder > AIT Risø Campus > Bygning 109, rum S14 > > ________________________________________ > From: Dan van der Ster <dan@xxxxxxxxxxxxxx> > Sent: 14 July 2020 17:38:27 > To: Frank Schilder > Cc: Anthony D'Atri; ceph-users > Subject: Re: Re: mon_osd_down_out_subtree_limit not working? > > Seems that > > ceph config set mon mon_osd_down_out_subtree_limit > > isn't working. (I've seen this sort of config namespace issue in the past). > > I'd try `ceph config set global mon_osd_down_out_subtree_limit host` > then restart the mon and check `ceph daemon mon.ceph-01 config get > mon_osd_down_out_subtree_limit` again. > > -- dan > > > On Tue, Jul 14, 2020 at 1:35 PM Frank Schilder <frans@xxxxxx> wrote: > > > > Hi Dan, > > > > thanks for your reply. There is still a problem. > > > > Firstly, I did indeed forget to restart the mon even though I looked at the help for mon_osd_down_out_subtree_limit and it says it requires a restart. Stupid me. Well, now I did a restart and it still doesn't work. Here is the situation: > > > > # ceph config dump | grep subtree > > mon advanced mon_osd_down_out_subtree_limit host * > > mon advanced mon_osd_reporter_subtree_level datacenter > > > > # ceph config get mon.ceph-01 mon_osd_down_out_subtree_limit > > host > > > > # ceph daemon mon.ceph-01 config get mon_osd_down_out_subtree_limit > > { > > "mon_osd_down_out_subtree_limit": "rack" > > } > > > > # ceph config show mon.ceph-01 | grep subtree > > mon_osd_down_out_subtree_limit rack default mon > > mon_osd_reporter_subtree_level datacenter mon > > > > The default overrides the mon config database setting. What is going on here? I restarted all 3 monitors. > > > > Best regards and thanks for your help, > > ================= > > Frank Schilder > > AIT Risø Campus > > Bygning 109, rum S14 > > > > ________________________________________ > > From: Dan van der Ster <dan@xxxxxxxxxxxxxx> > > Sent: 14 July 2020 10:53:13 > > To: Frank Schilder > > Cc: Anthony D'Atri; ceph-users > > Subject: Re: Re: mon_osd_down_out_subtree_limit not working? > > > > mon_osd_down_out_subtree_limit has been working well here. Did you > > restart the mon's after making that config change? > > Can you do this just to make sure it took effect? > > > > ceph daemon mon.`hostname -s` config get mon_osd_down_out_subtree_limit > > > > -- dan > > > > On Tue, Jul 14, 2020 at 8:57 AM Frank Schilder <frans@xxxxxx> wrote: > > > > > > Yes. After the time-out of 600 secs the OSDs got marked down, all PGs got remapped and recovery/rebalancing started as usual. In the past, I did service on servers with the flag noout set and would expect that mon_osd_down_out_subtree_limit=host has the same effect when shutting down an entire host. Unfortunately, in my case these two settings behave differently. > > > > > > If I understand the documentation correctly, the OSDs should not get marked out automatically. > > > > > > Best regards, > > > ================= > > > Frank Schilder > > > AIT Risø Campus > > > Bygning 109, rum S14 > > > > > > ________________________________________ > > > From: Anthony D'Atri <anthony.datri@xxxxxxxxx> > > > Sent: 14 July 2020 04:32:05 > > > To: Frank Schilder > > > Subject: Re: mon_osd_down_out_subtree_limit not working? > > > > > > Did it start rebalancing? > > > > > > > On Jul 13, 2020, at 4:29 AM, Frank Schilder <frans@xxxxxx> wrote: > > > > > > > > if I shut down all OSDs on this host, these OSDs should not be marked out automatically after mon_osd_down_out_interval(=600) seconds. I did a test today and, unfortunately, the OSDs do get marked as out. Ceph status was showing 1 host down as expected. > > > _______________________________________________ > > > 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