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how to clean stuck task
by Gianluca Cecchi 14 Nov '17

14 Nov '17

Hello, I have a task that seems stuck in webadmin gui, in the sens tha I have "Tasks(1)" listed The task is Restoring VM Snapshot Active VM before the preview of VM snaptest and the VM is powered down. Screenshot of expanded steps of task, that actually seem all completed, is here: https://drive.google.com/file/d/1bfl_gEfVotIrxGC9TDzPHPCeRub41mUa/view?usp=… Any hint on what to do to clean things? I'm on oVirt 4.1.6.2-1.el7.centos and I would like to clean before upgrading to 4.1.7. Thanks Gianluca

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Error during SSO authentication Cannot authenticate user 'admin@internal'
by Sverker Abrahamsson 14 Nov '17

14 Nov '17

Since upgrading my test lab to ovirt 4.2 I can't get ovirt-provider-ovn to work. From ovirt-provider-ovn.log: 2017-11-14 00:40:15,795 Request: POST : /v2.0///tokens 2017-11-14 00:40:15,795 Request body: { "auth" : { "passwordCredentials" : { "username" : "admin@internal", "password" : "xxxxxxxxx" } } } 2017-11-14 00:40:15,819 Starting new HTTPS connection (1): h2-int 2017-11-14 00:40:20,829 "POST /ovirt-engine/sso/oauth/token HTTP/1.1" 400 118 2017-11-14 00:40:20,830 Error during SSO authentication Cannot authenticate user 'admin@internal': The username or password is incorrect.. : access_deniedNone Traceback (most recent call last): File "/usr/share/ovirt-provider-ovn/handlers/base_handler.py", line 119, in _handle_request method, path_parts, content) File "/usr/share/ovirt-provider-ovn/handlers/selecting_handler.py", line 177, in handle_request handler, content, parameters File "/usr/share/ovirt-provider-ovn/handlers/keystone.py", line 28, in call_response_handler return response_handler(content, parameters) File "/usr/share/ovirt-provider-ovn/handlers/keystone_responses.py", line 58, in post_tokens user_password=user_password) File "/usr/share/ovirt-provider-ovn/auth/plugin_facade.py", line 26, in create_token return auth.core.plugin.create_token(user_at_domain, user_password) File "/usr/share/ovirt-provider-ovn/auth/plugins/ovirt/plugin.py", line 48, in create_token timeout=self._timeout()) File "/usr/share/ovirt-provider-ovn/auth/plugins/ovirt/sso.py", line 62, in create_token username, password, engine_url, ca_file, timeout) File "/usr/share/ovirt-provider-ovn/auth/plugins/ovirt/sso.py", line 54, in wrapper _check_for_error(response) File "/usr/share/ovirt-provider-ovn/auth/plugins/ovirt/sso.py", line 168, in _check_for_error result['error'], details)) Unauthorized: Error during SSO authentication Cannot authenticate user 'admin@internal': The username or password is incorrect.. : access_deniedNone And in engine.log: 2017-11-14 00:40:20,828+01 ERROR [org.ovirt.engine.core.sso.utils.SsoUtils] (default task-16) [] OAuthException access_denied: Cannot authenticate user 'admin@internal': The username or password is incorrect.. The password in the request is the same as used to log in to the admin portal and works fine there. /Sverker

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Host Power Management Configuration questions
by Artem Tambovskiy 14 Nov '17

14 Nov '17

Trying to configure power management for a certain host and fence agent always fail when I'm pressing Test button. At the same time from command line on the same host all looks good: [root@ovirt ~]# fence_ipmilan -a 172.16.22.1 -l user -p pwd -o status -v -P Executing: /usr/bin/ipmitool -I lanplus -H 172.16.22.1 -p 623 -U user -P pwd -L ADMINISTRATOR chassis power status 0 Chassis Power is on Status: ON [root@ovirt ~]# What could be the reason? Regards, Artem

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Transfer from one Storage to Other is very slow
by Jon bae 14 Nov '17

14 Nov '17

Hello everybody, I have a node where I installed nfs storage and I have a second nfs network storage. My node have a bond (4) with two nics and the other storage have a bond with 4 nics. My oVirt engine runs as a VM on my network storage. The bond on the node side is relative new, before I had this setup, the speed was good. But at the same time I also move my ovirt engine from a third server to the network storage. My problem is now, when I move a VM disk from the network storage to the storage on the node, I have very pure speed. A VM with 140GB takes more then an hour to transfer. When I make speed tests with iperf3 I got this speed: - from oVirt to network storage: 20Gbits/s - from network storage to node storage: 9.5Gbits/s - from ovrit to node storage 9.5 Gbits/s When I transfer a VM disk, iftop shows almost no traffic. Have you an idea what is happen here? Regards Jonathan

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Issue with hosted engine restore.
by Krzysztof Wajda 14 Nov '17

14 Nov '17

Hello, I have to restore Hosted Engine on another host (completely new hardware). Based on this https://www.ovirt.org/documentation/self-hosted/chap-Backing_up_and_Restori… is not clear for me if vm's will be rebooted during synchronization hosts with engine ? I have 5 hosts + 1 completely fresh. On host1 I have HE and there is no vm's on other 4 (host1-4) there are around 400 vm which can't be rebooted. Host5 for restore HE. Kris

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recommendations for best performance and reliability
by Rudi Ahlers 14 Nov '17

14 Nov '17

Hi, Can someone please give me some pointers, what would be the best setup for performance and reliability? We have the following hardware setup: 3x Supermicro server with following features per server: 128GB RAM 4x 8TB SATA HDD 2x SSD drives (intel_ssdsc2ba400g4 - 400GB DC S3710) 2x 12 core CPU (Intel(R) Xeon(R) CPU E5-2650 v4 @ 2.20GHz Quad port 10Gbe Inter NIC 2x 10GB Cisco switches (to isolate storage network from LAN) One of the servers will be in another office, with a 600Mb wireless link for Disaster Recovery. What is recommended for the best setup in terms of redundancy and speed? I am guessing GlusterFS with a Distributed Striped Replicated Volume across 3 of the servers. For added performance I want to use the SSD drives, perhaps with dm-cache? Should I combine the 4x HDD's using LVM on each host node? What about RAID 6? Virtual Machines will then reside on the oVirt Cluster and any one of the 3 host nodes can fail, or any single HDD can fail and all should still work, right/? -- Kind Regards Rudi Ahlers Website: http://www.rudiahlers.co.za

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Re: [ovirt-users] how to redo oVirt cluster?
by Luca 'remix_tj' Lorenzetto 14 Nov '17

14 Nov '17

Usually db is inside the engine vm. Is a postgres. Deleting it is not a problem, engine installation tools should recreate itt. Il 14 nov 2017 8:05 AM, "Rudi Ahlers" <rudiahlers(a)gmail.com> ha scritto: > Hi Luca, > > Where is the engine DB stored? Can I simply delete it, or would that > compromise a reinstallation? Though I can't imagine it would be problem. > > On Tue, Nov 14, 2017 at 8:58 AM, Luca 'remix_tj' Lorenzetto < > lorenzetto.luca(a)gmail.com> wrote: > >> Hello Rudi, >> >> I think that uninstalling ovirt-engine and removing vdsm from hosts >> should be enough. Pay attention to cleaning up engine db which contains all >> the engine data. >> >> Luca >> >> >> Il 14 nov 2017 7:20 AM, "Rudi Ahlers" <rudiahlers(a)gmail.com> ha scritto: >> >>> Hi, >>> >>> I have setup an oVirt cluster and did some tests. But how do I redo >>> everything, without reinstalling CentOS as well? >>> Would it be as simple as uninstalling all the ovirt? Or do I need to >>> manually delete some config files and other traces off the install as well? >>> >>> -- >>> Kind Regards >>> Rudi Ahlers >>> Website: http://www.rudiahlers.co.za >>> >>> _______________________________________________ >>> Users mailing list >>> Users(a)ovirt.org >>> http://lists.ovirt.org/mailman/listinfo/users >>> >>> > > > -- > Kind Regards > Rudi Ahlers > Website: http://www.rudiahlers.co.za >

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how to redo oVirt cluster?
by Rudi Ahlers 14 Nov '17

14 Nov '17

Hi, I have setup an oVirt cluster and did some tests. But how do I redo everything, without reinstalling CentOS as well? Would it be as simple as uninstalling all the ovirt? Or do I need to manually delete some config files and other traces off the install as well? -- Kind Regards Rudi Ahlers Website: http://www.rudiahlers.co.za

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Unable to clone a vm
by Budur Nagaraju 14 Nov '17

14 Nov '17

HI When I clone a vm from the existing vm , getting the error " https://pastebin.com/2p90TU2y". Below is the attached logs ,can some one help me on this ? https://pastebin.com/2p90TU2y Thanks, Nagaraju

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Re: [ovirt-users] iSCSI domain on 4kn drives
by Martijn Grendelman 13 Nov '17

13 Nov '17

--------------DE48748F7C67E1FABE46EEAF Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Op 7-8-2016 om 8:19 schreef Yaniv Kaul: > > On Fri, Aug 5, 2016 at 4:42 PM, Martijn Grendelman > <martijn.grendelman(a)isaac.nl <mailto:martijn.grendelman@isaac.nl>> wrote: > > Op 4-8-2016 om 18:36 schreef Yaniv Kaul: >> On Thu, Aug 4, 2016 at 11:49 AM, Martijn Grendelman >> <martijn.grendelman(a)isaac.nl >> <mailto:martijn.grendelman@isaac.nl>> wrote: >> >> Hi, >> >> Does oVirt support iSCSI storage domains on target LUNs using >> a block >> size of 4k? >> >> >> No, we do not - not if it exposes 4K blocks. >> Y. > > Is this on the roadmap? > > > Not in the short term roadmap. > Of course, patches are welcome. It's mainly in VDSM. > I wonder if it'll work in NFS. > Y. I don't think I ever replied to this, but I can confirm that in RHEV 3.6 it works with NFS. Best regards, Martijn. --------------DE48748F7C67E1FABE46EEAF Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: 7bit <html> <head> <meta content="text/html; charset=utf-8" http-equiv="Content-Type"> </head> <body bgcolor="#FFFFFF" text="#000000"> Op 7-8-2016 om 8:19 schreef Yaniv Kaul:<br> <blockquote cite="mid:280cfbd3a16ad1b76cc7de56bda88f45,CAJgorsbJHLV1e3fH4b4AR3GBp1oi44fDhfeii+PQ1iY1RwUStw@mail.gmail.com" type="cite"> <div dir="ltr"><br> <div class="gmail_extra">On Fri, Aug 5, 2016 at 4:42 PM, Martijn Grendelman <span dir="ltr"><<a moz-do-not-send="true" href="mailto:martijn.grendelman@isaac.nl" target="_blank">martijn.grendelman(a)isaac.nl</a>></span> wrote:<br> <div class="gmail_quote"> <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> <div bgcolor="#FFFFFF" text="#000000"> Op 4-8-2016 om 18:36 schreef Yaniv Kaul:<br> <blockquote type="cite"> <div dir="ltr"> <div class="gmail_extra"> <div class="gmail_quote"><span class="">On Thu, Aug 4, 2016 at 11:49 AM, Martijn Grendelman <span dir="ltr"><<a moz-do-not-send="true" href="mailto:martijn.grendelman@isaac.nl" target="_blank">martijn.grendelman(a)isaac.nl</a>></span> wrote:<br> </span><span class=""> <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi,<br> <br> Does oVirt support iSCSI storage domains on target LUNs using a block<br> size of 4k?<br> </blockquote> <div><br> </div> </span><span class=""> <div>No, we do not - not if it exposes 4K blocks.</div> <div>Y.</div> </span></div> </div> </div> </blockquote> <br> Is this on the roadmap?<br> </div> </blockquote> <div><br> </div> <div>Not in the short term roadmap.</div> <div>Of course, patches are welcome. It's mainly in VDSM.</div> <div>I wonder if it'll work in NFS.</div> <div>Y.</div> </div> </div> </div> </blockquote> <br> I don't think I ever replied to this, but I can confirm that in RHEV 3.6 it works with NFS.<br> <br> Best regards,<br> Martijn.<br> </body> </html> --------------DE48748F7C67E1FABE46EEAF--

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