From: "Frank Wall" <fw(a)moov.de&gt; To: users(a)ovirt.org Sent: Tuesday, February 11, 2014 4:51:14 PM Subject: [Users] Remove host from hosted-engine setup Hi, I've retired a host that was part of a hosted-engine setup. How do I remove this host from my hosted-engine HA setup? I have retired "host01" and would like to remove it completely: [root@host03 ~]# hosted-engine --vm-status --== Host 1 status ==-- Status up-to-date : False Hostname : host01.example.com Host ID : 1 Engine status : unknown stale-data Score : 2400 Local maintenance : False Host timestamp : 1390840600 Extra metadata (valid at timestamp): metadata_parse_version=1 metadata_feature_version=1 timestamp=1390840600 (Mon Jan 27 17:36:40 2014) host-id=1 score=2400 maintenance=False bridge=True cpu-load=0.0034 engine-health={"reason": "vm not running on this host", "health": "bad", "vm": "down", "detail": "unknown"} gateway=True mem-free=127844 --== Host 2 status ==-- Status up-to-date : True Hostname : host02.example.com Host ID : 2 Engine status : {"health": "good", "vm": "up", "detail": "up"} Score : 2400 Local maintenance : False Host timestamp : 1392129793 Extra metadata (valid at timestamp): metadata_parse_version=1 metadata_feature_version=1 timestamp=1392129793 (Tue Feb 11 15:43:13 2014) host-id=2 score=2400 maintenance=False bridge=True cpu-load=0.0057 engine-health={"health": "good", "vm": "up", "detail": "up"} gateway=True mem-free=107251 --== Host 3 status ==-- Status up-to-date : True Hostname : host03.example.com Host ID : 3 Engine status : {"reason": "vm not running on this host", "health": "bad", "vm": "down", "detail": "unknown"} Score : 2400 Local maintenance : False Host timestamp : 1392129796 Extra metadata (valid at timestamp): metadata_parse_version=1 metadata_feature_version=1 timestamp=1392129796 (Tue Feb 11 15:43:16 2014) host-id=3 score=2400 maintenance=False bridge=True cpu-load=0.0134 engine-health={"reason": "vm not running on this host", "health": "bad", "vm": "down", "detail": "unknown"} gateway=True mem-free=127838 Thanks - Frank

From: "Frank Wall" <fw(a)moov.de&gt; To: "Doron Fediuck" <dfediuck(a)redhat.com&gt; Cc: users(a)ovirt.org, "Greg Padgett" <gpadgett(a)redhat.com&gt;, "Jiri Moskovcak" <jmoskovc(a)redhat.com&gt;, "Martin Sivak" <msivak(a)redhat.com&gt; Sent: Tuesday, February 11, 2014 7:05:49 PM Subject: Re: [Users] Remove host from hosted-engine setup Hi Doron, On Tue, Feb 11, 2014 at 11:49:30AM -0500, Doron Fediuck wrote: > This is still in the works, but the right way to retire a host > is first to put it into local maintenance (there's CLI for it > and hopefully by 3.4 GA we will do it when you use the UI to put > a host into maintenance). > Once the host is in local HA maintenance, stale data is no longer > reported, which should give you a valid status report. > > Just FYI, we prefer to keep the original data for forensics, as > HA behavior is sensitive and we'd like to be able to trace back > in case of a failure. thanks for this clarification. Would it be possible to "overwrite" a retired host by choosing the same Host ID for a new host? Thanks - Frank