Thanks for reply . But I noticed that in https://tracker.ceph.com/issues/35848 , monitor failed in thread_name:fn_monstore, and didn't mention about safe_timer. Will the solution for the issues:35848 work in my problem? When I try to upgrade the cluster to v12.2.9, I noticed that the v12.2.9 is not recommended, v12.2.10 may be better,so I wonder when v12.2.10 will be released? Thanks a lot ! LouKaiyi -----Original Message----- From: Patrick Donnelly [mailto:pdonnell@xxxxxxxxxx] Sent: Tuesday, November 20, 2018 11:29 AM To: 楼锴毅 Cc: Ceph Users Subject: Re: mon:failed in thread_name:safe_timer On Mon, Nov 19, 2018 at 7:17 PM 楼锴毅 <loukaiyi_sx@xxxxxxxx> wrote: > sorry to disturb , but recently when I use ceph(12.2.8),I found that the leader monitor will always failed in thread_name:safe_timer. > [...] Try upgrading the mons to v12.2.9 (but see recent warnings concerning upgrades to v12.2.9 for the OSDs): https://tracker.ceph.com/issues/35848 -- Patrick Donnelly _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com