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
----- Original Message -----
From: "Frank Wall" <fw@moov.de> To: users@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
Hi Frank. 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. Doron
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
----- Original Message -----
From: "Frank Wall" <fw@moov.de> To: "Doron Fediuck" <dfediuck@redhat.com> Cc: users@ovirt.org, "Greg Padgett" <gpadgett@redhat.com>, "Jiri Moskovcak" <jmoskovc@redhat.com>, "Martin Sivak" <msivak@redhat.com> 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
Hi Frank, yes. I'm assuming you're going to assign a new host with the retired's host ID. In this case the data will be overwritten. If you have any issues, please report. Thanks! Doron
participants (2)
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Doron Fediuck -
Frank Wall