- Users - oVirt List Archives

yaml cloud-init custom scripts
by Nathanaël Blanchet 02 Jun '14

02 Jun '14

This is a multi-part message in MIME format. --------------030008090705050402030703 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit Hello, I've been unsuccessfully trying to make work a custom yalm script with the cloud-init option in 3.4.1. All other native UI parameters are correctly configured (hostname...) My goal is to change the keyboard layout: write_files: - content: | # My new /etc/sysconfig/keyboard file KEYTABLE="fr" MODEL="pc105" LAYOUT="fr" KEYBOARDTYPE="pc" path: /etc/sysconfig/keyboard permissions: '0644' I can't see what is wrong and there is nothing into cloud-init logs on the guest (/var/log/clou-init-output.log). Is it possible to see the whole yalm file generated by the engine somewhere? -- Nathanaël Blanchet Supervision réseau Pôle exploitation et maintenance Département des systèmes d'information 227 avenue Professeur-Jean-Louis-Viala 34193 MONTPELLIER CEDEX 5 Tél. 33 (0)4 67 54 84 55 Fax 33 (0)4 67 54 84 14 blanchet(a)abes.fr --------------030008090705050402030703 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit <html> <head> <meta http-equiv="content-type" content="text/html; charset=ISO-8859-1"> </head> <body bgcolor="#FFFFFF" text="#000000"> Hello, I've been unsuccessfully trying to make work a custom yalm script with the cloud-init option in 3.4.1. All other native UI parameters are correctly configured (hostname...) My goal is to change the keyboard layout:  write_files: -   content: |     # My new /etc/sysconfig/keyboard file            KEYTABLE="fr"     MODEL="pc105"     LAYOUT="fr"     KEYBOARDTYPE="pc"     path: /etc/sysconfig/keyboard     permissions: '0644' I can't see what is wrong and there is nothing into cloud-init logs on the guest (/var/log/clou-init-output.log). Is it possible to see the whole yalm file generated by the engine somewhere? <pre class="moz-signature" cols="72">-- Nathanaël Blanchet Supervision réseau Pôle exploitation et maintenance Département des systèmes d'information 227 avenue Professeur-Jean-Louis-Viala 34193 MONTPELLIER CEDEX 5 Tél. 33 (0)4 67 54 84 55 Fax 33 (0)4 67 54 84 14 <a class="moz-txt-link-abbreviated" href="mailto:blanchet@abes.fr">blanchet(a)abes.fr</a> </pre> </body> </html> --------------030008090705050402030703--

3 8

ISCSI question
by Michael Wagenknecht 02 Jun '14

02 Jun '14

Hi, what is the best way to logout a single ISCSI Path? I can't find a way in the GUI. Can I use the iscsiadm command (iscsiadm -u -T ... -p ...)? We use oVirt 3.3.2-1.el6. Best regards, Michael

2 1

sanlock + gluster recovery -- RFE
by Giuseppe Ragusa 02 Jun '14

02 Jun '14

--_27321994-845b-49b2-9a1d-a49b376f5af2_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi=2C > ----- Original Message ----- > > From: "Ted Miller" <tmiller at hcjb.org> > > To: "users" <users at ovirt.org> > > Sent: Tuesday=2C May 20=2C 2014 11:31:42 PM > > Subject: [ovirt-users] sanlock + gluster recovery -- RFE > >=20 > > As you are aware=2C there is an ongoing split-brain problem with runnin= g > > sanlock on replicated gluster storage. Personally=2C I believe that thi= s is > > the 5th time that I have been bitten by this sanlock+gluster problem. > >=20 > > I believe that the following are true (if not=2C my entire request is p= robably > > off base). > >=20 > >=20 > > * ovirt uses sanlock in such a way that when the sanlock storage is= on a > > replicated gluster file system=2C very small storage disruptions ca= n > > result in a gluster split-brain on the sanlock space >=20 > Although this is possible (at the moment) we are working hard to avoid it= . > The hardest part here is to ensure that the gluster volume is properly > configured. >=20 > The suggested configuration for a volume to be used with ovirt is: >=20 > Volume Name: (...) > Type: Replicate > Volume ID: (...) > Status: Started > Number of Bricks: 1 x 3 =3D 3 > Transport-type: tcp > Bricks: > (...three bricks...) > Options Reconfigured: > network.ping-timeout: 10 > cluster.quorum-type: auto >=20 > The two options ping-timeout and quorum-type are really important. >=20 > You would also need a build where this bug is fixed in order to avoid any > chance of a split-brain: >=20 > https://bugzilla.redhat.com/show_bug.cgi?id=3D1066996 It seems that the aforementioned bug is peculiar to 3-bricks setups. I understand that a 3-bricks setup can allow proper quorum formation withou= t resorting to "first-configured-brick-has-more-weight" convention used wit= h only 2 bricks and quorum "auto" (which makes one node "special"=2C so not= properly any-single-fault tolerant). But=2C since we are on ovirt-users=2C is there a similar suggested configur= ation for a 2-hosts setup oVirt+GlusterFS with oVirt-side power management = properly configured and tested-working? I mean a configuration where "any" host can go south and oVirt (through the= other one) fences it (forcibly powering it off with confirmation from IPMI= or similar) then restarts HA-marked vms that were running there=2C all the= while keeping the underlying GlusterFS-based storage domains responsive an= d readable/writeable (maybe apart from a lapse between detected other-node = unresposiveness and confirmed fencing)? Furthermore: is such a suggested configuration possible in a self-hosted-en= gine scenario? Regards=2C Giuseppe > > How did I get into this mess? > >=20 > > ... > >=20 > > What I would like to see in ovirt to help me (and others like me). Alte= rnates > > listed in order from most desirable (automatic) to least desirable (set= of > > commands to type=2C with lots of variables to figure out). >=20 > The real solution is to avoid the split-brain altogether. At the moment i= t > seems that using the suggested configurations and the bug fix we shouldn'= t > hit a split-brain. >=20 > > 1. automagic recovery > >=20 > > 2. recovery subcommand > >=20 > > 3. script > >=20 > > 4. commands >=20 > I think that the commands to resolve a split-brain should be documented. > I just started a page here: >=20 > http://www.ovirt.org/Gluster_Storage_Domain_Reference >=20 > Could you add your documentation there? Thanks! >=20 > --=20 > Federico = --_27321994-845b-49b2-9a1d-a49b376f5af2_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable <html> <head> <style></style></head> <body class=3D'hmmessage'><div dir=3D'ltr'>Hi=2C &gt=3B ----- Origin= al Message ----- &gt=3B &gt=3B From: "Ted Miller" &lt=3Btmiller at hcjb.= org&gt=3B &gt=3B &gt=3B To: "users" &lt=3Busers at ovirt.org&gt=3B &g= t=3B &gt=3B Sent: Tuesday=2C May 20=2C 2014 11:31:42 PM &gt=3B &gt=3B Su= bject: [ovirt-users] sanlock + gluster recovery -- RFE &gt=3B &gt=3B <br= >&gt=3B &gt=3B As you are aware=2C there is an ongoing split-brain problem = with running &gt=3B &gt=3B sanlock on replicated gluster storage. Person= ally=2C I believe that this is &gt=3B &gt=3B the 5th time that I have be= en bitten by this sanlock+gluster problem. &gt=3B &gt=3B &gt=3B &gt= =3B I believe that the following are true (if not=2C my entire request is p= robably &gt=3B &gt=3B off base). &gt=3B &gt=3B &gt=3B &gt=3B = &gt=3B &gt=3B&nbsp=3B&nbsp=3B&nbsp=3B&nbsp=3B * ovirt uses sanlock in such = a way that when the sanlock storage is on a &gt=3B &gt=3B&nbsp=3B&nbsp= =3B&nbsp=3B&nbsp=3B replicated gluster file system=2C very small storage di= sruptions can &gt=3B &gt=3B&nbsp=3B&nbsp=3B&nbsp=3B&nbsp=3B result in a = gluster split-brain on the sanlock space &gt=3B &gt=3B Although this= is possible (at the moment) we are working hard to avoid it. &gt=3B The= hardest part here is to ensure that the gluster volume is properly &gt= =3B configured. &gt=3B &gt=3B The suggested configuration for a volu= me to be used with ovirt is: &gt=3B &gt=3B Volume Name: (...) &gt= =3B Type: Replicate &gt=3B Volume ID: (...) &gt=3B Status: Started<br= >&gt=3B Number of Bricks: 1 x 3 =3D 3 &gt=3B Transport-type: tcp &gt= =3B Bricks: &gt=3B (...three bricks...) &gt=3B Options Reconfigured:<= br>&gt=3B network.ping-timeout: 10 &gt=3B cluster.quorum-type: auto &= gt=3B &gt=3B The two options ping-timeout and quorum-type are really im= portant. &gt=3B &gt=3B You would also need a build where this bug is= fixed in order to avoid any &gt=3B chance of a split-brain: &gt=3B <= br>&gt=3B https://bugzilla.redhat.com/show_bug.cgi?id=3D1066996 It s= eems that the aforementioned bug is peculiar to 3-bricks setups. I u= nderstand that a 3-bricks setup can allow proper quorum formation without r= esorting to "first-configured-brick-has-more-weight" convention used with o= nly 2 bricks and quorum "auto" (which makes one node "special"=2C so not pr= operly any-single-fault tolerant). But=2C since we are on ovirt-user= s=2C is there a similar suggested configuration for a 2-hosts setup oVirt+G= lusterFS with oVirt-side power management properly configured and tested-wo= rking? I mean a configuration where "any" host can go south and oVirt (t= hrough the other one) fences it (forcibly powering it off with confirmation= from IPMI or similar) then restarts HA-marked vms that were running there= =2C all the while keeping the underlying GlusterFS-based storage domains re= sponsive and readable/writeable (maybe apart from a lapse between detected = other-node unresposiveness and confirmed fencing)? Furthermore: is s= uch a suggested configuration possible in a self-hosted-engine scenario?<br= > Regards=2C Giuseppe &gt=3B &gt=3B How did I get into this me= ss? &gt=3B &gt=3B &gt=3B &gt=3B ... &gt=3B &gt=3B &gt=3B &gt= =3B What I would like to see in ovirt to help me (and others like me). Alte= rnates &gt=3B &gt=3B listed in order from most desirable (automatic) to = least desirable (set of &gt=3B &gt=3B commands to type=2C with lots of v= ariables to figure out). &gt=3B &gt=3B The real solution is to avoid= the split-brain altogether. At the moment it &gt=3B seems that using th= e suggested configurations and the bug fix we shouldn't &gt=3B hit a spl= it-brain. &gt=3B &gt=3B &gt=3B 1. automagic recovery &gt=3B &gt= =3B &gt=3B &gt=3B 2. recovery subcommand &gt=3B &gt=3B &gt=3B &g= t=3B 3. script &gt=3B &gt=3B &gt=3B &gt=3B 4. commands &gt=3B <br= >&gt=3B I think that the commands to resolve a split-brain should be docume= nted. &gt=3B I just started a page here: &gt=3B &gt=3B http://www= .ovirt.org/Gluster_Storage_Domain_Reference &gt=3B &gt=3B Could you = add your documentation there? Thanks! &gt=3B &gt=3B -- &gt=3B Fe= derico </div></body> </html>= --_27321994-845b-49b2-9a1d-a49b376f5af2_--

4 5

Monitoring UI-Plugin -> Zabbix
by René Koch 02 Jun '14

02 Jun '14

Hi, As some of you might know I wrote a monitoring ui-plugin which displays the check results of a Nagios/Icinga monitoring solution in oVirt webadmin portal. For the next version I want to extend the functionality to also display check results of a Zabbix monitoring solution. I know that there are some people on this list who are experienced with Zabbix so I wanted to ask if there's someone who want's to help integrating Zabbix into this ui-plugin. I mostly need help understanding how Zabbix works and testing early versions (I just have a very small Zabbix monitoring environment) - fetching data from the Zabbix API and displaying it in the same way as Nagios data isn't a problem for me. So if you're willing to help please drop me an email. Thanks. -- Best Regards René Koch Senior Solution Architect ============================================ LIS-Linuxland GmbH Brünner Straße 163, A-1210 Vienna Phone: +43 1 236 91 60 Mobile: +43 660 / 512 21 31 E-Mail: rkoch(a)linuxland.at ============================================

1 0

Create two Node Cluster
by ml ml 01 Jun '14

01 Jun '14

Hello List, i just installed 3.4. 1.) I created a DataCenter: ---------------------------------- Type: Shared Compatibility Versio: 3.4 Quota Mode: disabled 2.) i created the Cluster ---------------------------------- Compatibility Version: 3.4 Enable Virt Service: yes Enable Gluster Service: yes 3.) i added two hosts ----------------------------- - they are up and running How can i now add my volumes and bricks? I dont have the exspected "Volumes" Tab to add Bricks. If i go to "Storage" i can only add "Data / GlusterFS" with a path to mount glusterfs. I guess this is for already existing gluster shares? Does it not work like this on page 15,16,17? http://www.ovirt.org/images/5/59/Ovirt-fosdem2013-gluster.pdf Thanks, Mario

2 1

VM external-VM name was created by Non interactive use
by Nathanaël Blanchet 01 Jun '14

01 Jun '14

This is a multi-part message in MIME format. --------------080002020503070801070302 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit Hello, I imported a vm as a template from the glance public repo included in ovirt 3.4. When creating a new VM ("azerty") based on this template, I run once with cloud-init. The first boot behaves normally and my vm "azerty" goes up. When trying to reboot, it always fails and I can't use it anymore. In addition, a new empty externel-azerty vm is created with the "external" prefix by a mysterious "non interactive user". When I delete it, it is automatically recreated unless I remove azerty. Can anybody explain? 2014-05-30 14:30:56,249 INFO [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (DefaultQuartzScheduler_Worker-63) [34c4344f] Correlation ID: 34c4344f, Job ID: ab2120a6-82e4-4312-a288-fa3e127cc9bc, Call Stack: null, Custom Event ID: -1, Message: VM external-azerty was created by Non interactive user. 2014-05-30 14:30:56,254 INFO [org.ovirt.engine.core.bll.AddVmFromScratcCommand] (DefaultQuartzScheduler_Worker-63) [34c4344f] Lock freed to object EngineLock [exclusiveLocks= key: external-azerty value: VM_NAME , sharedLocks= ] -- Nathanaël Blanchet Supervision réseau Pôle exploitation et maintenance Département des systèmes d'information 227 avenue Professeur-Jean-Louis-Viala 34193 MONTPELLIER CEDEX 5 Tél. 33 (0)4 67 54 84 55 Fax 33 (0)4 67 54 84 14 blanchet(a)abes.fr --------------080002020503070801070302 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit <html> <head> <meta http-equiv="content-type" content="text/html; charset=ISO-8859-1"> </head> <body bgcolor="#FFFFFF" text="#000000"> Hello, I imported a vm as a template from the glance public repo included in ovirt 3.4. When creating a new VM ("azerty") based on this template, I run once with cloud-init. The first boot behaves normally and my vm "azerty" goes up. When trying to reboot, it always fails and I can't use it anymore. In addition, a new empty externel-azerty vm is created with the "external" prefix by a mysterious "non interactive user". When I delete it, it is automatically recreated unless I remove azerty. Can anybody explain? 2014-05-30 14:30:56,249 INFO  [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (DefaultQuartzScheduler_Worker-63) [34c4344f] Correlation ID: 34c4344f, Job ID: ab2120a6-82e4-4312-a288-fa3e127cc9bc, Call Stack: null, Custom Event ID: -1, Message: VM external-azerty was created by Non interactive user. 2014-05-30 14:30:56,254 INFO  [org.ovirt.engine.core.bll.AddVmFromScratcCommand] (DefaultQuartzScheduler_Worker-63) [34c4344f] Lock freed to object EngineLock [exclusiveLocks= key: external-azerty value: VM_NAME , sharedLocks= ] <pre class="moz-signature" cols="72">-- Nathanaël Blanchet Supervision réseau Pôle exploitation et maintenance Département des systèmes d'information 227 avenue Professeur-Jean-Louis-Viala 34193 MONTPELLIER CEDEX 5 Tél. 33 (0)4 67 54 84 55 Fax 33 (0)4 67 54 84 14 <a class="moz-txt-link-abbreviated" href="mailto:blanchet@abes.fr">blanchet(a)abes.fr</a> </pre> </body> </html> --------------080002020503070801070302--

2 2

Updated infra procedures
by David Caro 01 Jun '14

01 Jun '14

This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --U722kKrEV8cwpVb925s6WdsXKgmcX5rfl Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Hi everyone! =46rom now on we want and to be able to give the best response possible t= o any issue, we want to start using trac to manage any request we get, so from = now on, please open a ticket in the trac [1] whenever you need something to get d= one, of course, if you ping us on irc we will still respond and if it's a critica= l issue or a very trivial one we might solve it on the fly, but for any normal in= fra issue please open a trac ticket. The wiki page has been updated with that information too (thanks eyal) [2= ] [1] https://fedorahosted.org/ovirt/newticket [2] http://www.ovirt.org/Category:Infrastructure#How_we_work Thanks! --=20 David Caro Red Hat S.L. Continuous Integration Engineer - EMEA ENG Virtualization R&D Email: dcaro(a)redhat.com Web: www.redhat.com RHT Global #: 82-62605 --U722kKrEV8cwpVb925s6WdsXKgmcX5rfl Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQEcBAEBAgAGBQJTh3OCAAoJEEBxx+HSYmnD4hsIAJcuRYqhz8Zjr3lxvNab0hu1 UkDduaJ1B6oXC8yCFZlyVRHv7gq8majv7PR1hlgJh6pOU6e3Emmjk9j9DnT7Fpp/ CS5wm2a1Y6LG1mySk42Ipsbf3bAGr/sUpUuMJPtrD9xBg9E8swLY1uEHY4UrGKQI vCsMp1VxW9abOOaPxU2v+RHMKjYu4Dhh4WsPbT5kz0HMrjxNG87t9N/Z/N6zCUG1 XrtbZR1z3QMAb2ypTkgO2OtEdsUxmjgX+gyhAfGLwXg/mlzcIvaiX+LKXDlJl/6W 4lpI7UkICAPz9xSe9xp5kNXHmZcbcNuvfSKhxkWrMmLCj1DG0TvhnGFzBoVkl1w= =GBeG -----END PGP SIGNATURE----- --U722kKrEV8cwpVb925s6WdsXKgmcX5rfl--

2 1

oVirt Infiniband Support - Etherrnet vs Infiniband
by ml ml 01 Jun '14

01 Jun '14

Hello List, i am very new to ovirt. I am setting up a 2 Node Cluster with GlusterFS Sync Replication. I was about to buy a 2-Port Intel Gbit nic for each host which is about 150Eur each. However, for a little extra of 180Eur you get a 10GBit Infiniband - MCX311A-XCAT. I would like to have quick opinions on this. Should i pay a little more and then get 10MBit instead of 2GBit bonded? Thanks, michel

3 2

New Stats for oVirt Community
by Brian Proffitt 01 Jun '14

01 Jun '14

The folks at Bitergia have been working on improving the community metrics dashboard located at ovirt.org/stats. I was just notified that, per our request, metrics for a big asset in our community--the #ovirt IRC--have been added to the dashboard. Swing by the page and see who's active on IRC and in the rest of the oVirt community! Peace, Brian -- Brian Proffitt oVirt Community Manager Project Atomic Community Lead Open Source and Standards, Red Hat - http://community.redhat.com Phone: +1 574 383 9BKP IRC: bkp @ OFTC

1 0

Hot Plug RAM - on the roadmap?
by Christian Rebel 01 Jun '14

01 Jun '14

This is a multipart message in MIME format. ------=_NextPart_000_0048_01CF7CF9.EE76FCB0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Hi all, According to the below Presentation "Hot Plug RAM" is now on the roadmap (see page 18) http://events.linuxfoundation.org/sites/events/files/slides/litke-lfcs-oVirt -Update-20140328.pdf Does anyone have a realistic Info in which Release it will be implemented. I hope to see it asap. Thanks in advance, Christian ------=_NextPart_000_0048_01CF7CF9.EE76FCB0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable <html xmlns:v=3D"urn:schemas-microsoft-com:vml" = xmlns:o=3D"urn:schemas-microsoft-com:office:office" = xmlns:w=3D"urn:schemas-microsoft-com:office:word" = xmlns:m=3D"http://schemas.microsoft.com/office/2004/12/omml" = xmlns=3D"http://www.w3.org/TR/REC-html40"><head><META = HTTP-EQUIV=3D"Content-Type" CONTENT=3D"text/html; = charset=3Dus-ascii"><meta name=3DGenerator content=3D"Microsoft Word 14 = (filtered medium)"><style></style></head><body lang=3DDE-AT link=3Dblue = vlink=3Dpurple><div class=3DWordSection1>Hi = all,<o:p></o:p><o:p> </o:p>According to the below Presentation = “Hot Plug RAM” is now on the roadmap (see page = 18)<o:p></o:p><a = href=3D"http://events.linuxfoundation.org/sites/events/files/slides/litke= -lfcs-oVirt-Update-20140328.pdf">http://events.linuxfoundation.org/sites/= events/files/slides/litke-lfcs-oVirt-Update-20140328.pdf</a> = <o:p></o:p><o:p> </o:p>Does anyone have a realistic Info = in which Release it will be implemented. I hope to see it = asap…<o:p></o:p><o:p> </o:p>Thanks in = advance,<o:p></o:p>Christian<o:p></o:p><o:p> </o:p></div></body></html> ------=_NextPart_000_0048_01CF7CF9.EE76FCB0--

2 1