October 2020 - Users - oVirt List Archives

Re: CEPH - Opinions and ROI
by Philip Brown 02 Oct '20

02 Oct '20

ceph through an iscsi gateway is very.. very.. slow. ----- Original Message ----- From: "Matthew Stier" <Matthew.Stier(a)fujitsu.com> To: "Jeremey Wise" <jeremey.wise(a)gmail.com>, "users" <users(a)ovirt.org> Sent: Wednesday, September 30, 2020 10:03:34 PM Subject: [ovirt-users] Re: CEPH - Opinions and ROI If you can’t go direct, how about round about, with an iSCSI gateway. From: Jeremey Wise <jeremey.wise(a)gmail.com> Sent: Wednesday, September 30, 2020 11:33 PM To: users <users(a)ovirt.org> Subject: [ovirt-users] CEPH - Opinions and ROI I have for many years used gluster because..well. 3 nodes.. and so long as I can pull a drive out.. I can get my data.. and with three copies.. I have much higher chance of getting it. Downsides to gluster: Slower (its my home..meh... and I have SSD to avoid MTBF issues ) and with VDO.. and thin provisioning.. not had issue. BUT.... gluster seems to be falling out of favor. Especially as I move towards OCP. So.. CEPH. I have one SSD in each of the three servers. so I have some space to play. I googled around.. and find no clean deployment notes and guides on CEPH + oVirt. Comments or ideas.. -- [ mailto:jeremey.wise@gmail.com | p ] enguinpages. _______________________________________________ Users mailing list -- users(a)ovirt.org To unsubscribe send an email to users-leave(a)ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/S4V6NKC62LW42…

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[ANN] oVirt 4.4.3 Third Release Candidate is now available for testing
by Lev Veyde 01 Oct '20

01 Oct '20

oVirt 4.4.3 Third Release Candidate is now available for testing The oVirt Project is pleased to announce the availability of oVirt 4.4.3 Third Release Candidate for testing, as of October 1st, 2020. This update is the third in a series of stabilization updates to the 4.4 series. How to prevent hosts entering emergency mode after upgrade from oVirt 4.4.1 Note: Upgrading from 4.4.2 GA should not require re-doing these steps, if already performed while upgrading from 4.4.1 to 4.4.2 GA. These are only required to be done once. Due to Bug 1837864 <https://bugzilla.redhat.com/show_bug.cgi?id=1837864> - Host enter emergency mode after upgrading to latest build If you have your root file system on a multipath device on your hosts you should be aware that after upgrading from 4.4.1 to 4.4.3 you may get your host entering emergency mode. In order to prevent this be sure to upgrade oVirt Engine first, then on your hosts: 1. Remove the current lvm filter while still on 4.4.1, or in emergency mode (if rebooted). 2. Reboot. 3. Upgrade to 4.4.3 (redeploy in case of already being on 4.4.3). 4. Run vdsm-tool config-lvm-filter to confirm there is a new filter in place. 5. Only if not using oVirt Node: - run "dracut --force --add multipath” to rebuild initramfs with the correct filter configuration 6. Reboot. Documentation - If you want to try oVirt as quickly as possible, follow the instructions on the Download <https://ovirt.org/download/> page. - For complete installation, administration, and usage instructions, see the oVirt Documentation <https://ovirt.org/documentation/>. - For upgrading from a previous version, see the oVirt Upgrade Guide <https://ovirt.org/documentation/upgrade_guide/>. - For a general overview of oVirt, see About oVirt <https://ovirt.org/community/about.html>. Important notes before you try it Please note this is a pre-release build. The oVirt Project makes no guarantees as to its suitability or usefulness. This pre-release must not be used in production. Installation instructions For installation instructions and additional information please refer to: https://ovirt.org/documentation/ This release is available now on x86_64 architecture for: * Red Hat Enterprise Linux 8.2 or newer * CentOS Linux (or similar) 8.2 or newer This release supports Hypervisor Hosts on x86_64 and ppc64le architectures for: * Red Hat Enterprise Linux 8.2 or newer * CentOS Linux (or similar) 8.2 or newer * oVirt Node 4.4 based on CentOS Linux 8.2 (available for x86_64 only) See the release notes [1] for installation instructions and a list of new features and bugs fixed. Notes: - oVirt Appliance is already available for CentOS Linux 8 - oVirt Node NG is already available for CentOS Linux 8 Additional Resources: * Read more about the oVirt 4.4.3 release highlights: http://www.ovirt.org/release/4.4.3/ * Get more oVirt project updates on Twitter: https://twitter.com/ovirt * Check out the latest project news on the oVirt blog: http://www.ovirt.org/blog/ [1] http://www.ovirt.org/release/4.4.3/ [2] http://resources.ovirt.org/pub/ovirt-4.4-pre/iso/ -- Lev Veyde Senior Software Engineer, RHCE | RHCVA | MCITP Red Hat Israel <https://www.redhat.com> lev(a)redhat.com | lveyde(a)redhat.com <https://red.ht/sig> TRIED. TESTED. TRUSTED. <https://redhat.com/trusted>

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VM AutoStart
by Jeremey Wise 01 Oct '20

01 Oct '20

When I have to shut down cluster... ups runs out etc.. I need a sequence set of just a small number of VMs to "autostart" Normally I just use DNS FQND to connect to oVirt engine but as two of my VMs are a DNS HA cluster.. as well as NTP / SMTP /DHCP etc... I need those two infrastructure VMs to be auto boot. I looked at HA settings for those VMs but it seems to be watching for pause /resume.. but it does not imply or state auto start on clean first boot. Options? -- p <jeremey.wise(a)gmail.com>enguinpages

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ovirt-node-4.4.2 grub is not reading new grub.cfg at boot
by Mike Lindsay 01 Oct '20

01 Oct '20

Hey Folks, I've got a bit of a strange one here. I downloaded and installed ovirt-node-ng-installer-4.4.2-2020091810.el8.iso today on an old dev laptop and to get it to install I needed to add acpi=off to the kernel boot param to get the installing to work (known issue with my old laptop). After installation it was still booting with acpi=off, no biggie (seen that happen with Centos 5,6,7 before on occasion) right, just change the line in /etc/defaults/grub and run grub2-mkconfig (ran for both efi and legacy for good measure even knowing EFI isn't used) and reboot...done this hundreds of times without any problems. But this time after rebooting if I hit 'e' to look at the kernel params on boot, acpi=off is still there. Basically any changes to /etc/default/grub are being ignored or over-ridden but I'll be damned if I can't find where. I know I'm missing something simple here, I do this all the time but to be honest this is the first Centos 8 based install I've had time to play with. Any suggestions would be greatly appreciated. The drive layout is a bit weird but had no issues running fedora or centos in the past. boot drive is a mSATA (/dev/sdb) and there is a SSD data drive at /dev/sda...having sda installed or removed makes no difference and /boot is mounted where it should /dev/sdb1....very strange Cheers, Mike [root@ovirt-node01 ~]# cat /etc/default/grub GRUB_TIMEOUT=5 GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)" GRUB_DEFAULT=saved GRUB_DISABLE_SUBMENU=true GRUB_TERMINAL_OUTPUT="console" GRUB_CMDLINE_LINUX='crashkernel=auto resume=/dev/mapper/onn-swap rd.lvm.lv=onn/ovirt-node-ng-4.4.2-0.20200918.0+1 rd.lvm.lv=onn/swap noapic rhgb quiet' GRUB_DISABLE_RECOVERY="true" GRUB_ENABLE_BLSCFG=true GRUB_DISABLE_OS_PROBER='true' [root@ovirt-node01 ~]# cat /boot/grub2/grub.cfg # # DO NOT EDIT THIS FILE # # It is automatically generated by grub2-mkconfig using templates # from /etc/grub.d and settings from /etc/default/grub # ### BEGIN /etc/grub.d/00_header ### set pager=1 if [ -f ${config_directory}/grubenv ]; then load_env -f ${config_directory}/grubenv elif [ -s $prefix/grubenv ]; then load_env fi if [ "${next_entry}" ] ; then set default="${next_entry}" set next_entry= save_env next_entry set boot_once=true else set default="${saved_entry}" fi if [ x"${feature_menuentry_id}" = xy ]; then menuentry_id_option="--id" else menuentry_id_option="" fi export menuentry_id_option if [ "${prev_saved_entry}" ]; then set saved_entry="${prev_saved_entry}" save_env saved_entry set prev_saved_entry= save_env prev_saved_entry set boot_once=true fi function savedefault { if [ -z "${boot_once}" ]; then saved_entry="${chosen}" save_env saved_entry fi } function load_video { if [ x$feature_all_video_module = xy ]; then insmod all_video else insmod efi_gop insmod efi_uga insmod ieee1275_fb insmod vbe insmod vga insmod video_bochs insmod video_cirrus fi } terminal_output console if [ x$feature_timeout_style = xy ] ; then set timeout_style=menu set timeout=5 # Fallback normal timeout code in case the timeout_style feature is # unavailable. else set timeout=5 fi ### END /etc/grub.d/00_header ### ### BEGIN /etc/grub.d/00_tuned ### set tuned_params="" set tuned_initrd="" ### END /etc/grub.d/00_tuned ### ### BEGIN /etc/grub.d/01_users ### if [ -f ${prefix}/user.cfg ]; then source ${prefix}/user.cfg if [ -n "${GRUB2_PASSWORD}" ]; then set superusers="root" export superusers password_pbkdf2 root ${GRUB2_PASSWORD} fi fi ### END /etc/grub.d/01_users ### ### BEGIN /etc/grub.d/08_fallback_counting ### insmod increment # Check if boot_counter exists and boot_success=0 to activate this behaviour. if [ -n "${boot_counter}" -a "${boot_success}" = "0" ]; then # if countdown has ended, choose to boot rollback deployment, # i.e. default=1 on OSTree-based systems. if [ "${boot_counter}" = "0" -o "${boot_counter}" = "-1" ]; then set default=1 set boot_counter=-1 # otherwise decrement boot_counter else decrement boot_counter fi save_env boot_counter fi ### END /etc/grub.d/08_fallback_counting ### ### BEGIN /etc/grub.d/10_linux ### insmod part_msdos insmod ext2 set root='hd1,msdos1' if [ x$feature_platform_search_hint = xy ]; then search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos1 --hint-efi=hd1,msdos1 --hint-baremetal=ahci1,msdos1 b6557c59-e11f-471b-8cb1-70c47b0b4b29 else search --no-floppy --fs-uuid --set=root b6557c59-e11f-471b-8cb1-70c47b0b4b29 fi insmod part_msdos insmod ext2 set boot='hd1,msdos1' if [ x$feature_platform_search_hint = xy ]; then search --no-floppy --fs-uuid --set=boot --hint-bios=hd1,msdos1 --hint-efi=hd1,msdos1 --hint-baremetal=ahci1,msdos1 b6557c59-e11f-471b-8cb1-70c47b0b4b29 else search --no-floppy --fs-uuid --set=boot b6557c59-e11f-471b-8cb1-70c47b0b4b29 fi # This section was generated by a script. Do not modify the generated file - all changes # will be lost the next time file is regenerated. Instead edit the BootLoaderSpec files. # # The blscfg command parses the BootLoaderSpec files stored in /boot/loader/entries and # populates the boot menu. Please refer to the Boot Loader Specification documentation # for the files format: https://www.freedesktop.org/wiki/Specifications/BootLoaderSpec/. set default_kernelopts="root=/dev/mapper/onn-ovirt--node--ng--4.4.2--0.20200918.0+1 ro crashkernel=auto resume=/dev/mapper/onn-swap rd.lvm.lv=onn/ovirt-node-ng-4.4.2-0.20200918.0+1 rd.lvm.lv=onn/swap noapic rhgb quiet " insmod blscfg blscfg ### END /etc/grub.d/10_linux ### ### BEGIN /etc/grub.d/10_reset_boot_success ### # Hiding the menu is ok if last boot was ok or if this is a first boot attempt to boot the entry if [ "${boot_success}" = "1" -o "${boot_indeterminate}" = "1" ]; then set menu_hide_ok=1 else set menu_hide_ok=0 fi # Reset boot_indeterminate after a successful boot if [ "${boot_success}" = "1" ] ; then set boot_indeterminate=0 # Avoid boot_indeterminate causing the menu to be hidden more then once elif [ "${boot_indeterminate}" = "1" ]; then set boot_indeterminate=2 fi # Reset boot_success for current boot set boot_success=0 save_env boot_success boot_indeterminate ### END /etc/grub.d/10_reset_boot_success ### ### BEGIN /etc/grub.d/12_menu_auto_hide ### if [ x$feature_timeout_style = xy ] ; then if [ "${menu_show_once}" ]; then unset menu_show_once save_env menu_show_once set timeout_style=menu set timeout=60 elif [ "${menu_auto_hide}" -a "${menu_hide_ok}" = "1" ]; then set orig_timeout_style=${timeout_style} set orig_timeout=${timeout} if [ "${fastboot}" = "1" ]; then # timeout_style=menu + timeout=0 avoids the countdown code keypress check set timeout_style=menu set timeout=0 else set timeout_style=hidden set timeout=1 fi fi fi ### END /etc/grub.d/12_menu_auto_hide ### ### BEGIN /etc/grub.d/20_linux_xen ### ### END /etc/grub.d/20_linux_xen ### ### BEGIN /etc/grub.d/20_ppc_terminfo ### ### END /etc/grub.d/20_ppc_terminfo ### ### BEGIN /etc/grub.d/30_os-prober ### ### END /etc/grub.d/30_os-prober ### ### BEGIN /etc/grub.d/30_uefi-firmware ### ### END /etc/grub.d/30_uefi-firmware ### ### BEGIN /etc/grub.d/40_custom ### # This file provides an easy way to add custom menu entries. Simply type the # menu entries you want to add after this comment. Be careful not to change # the 'exec tail' line above. ### END /etc/grub.d/40_custom ### ### BEGIN /etc/grub.d/41_custom ### if [ -f ${config_directory}/custom.cfg ]; then source ${config_directory}/custom.cfg elif [ -z "${config_directory}" -a -f $prefix/custom.cfg ]; then source $prefix/custom.cfg; fi ### END /etc/grub.d/41_custom ### -- Mike Lindsay Senior Systems Administrator Technological Maintenance and Support CBC/SRC mike.lindsay(a)cbc.ca (o) 416-205-8992 (c) 416-819-2841

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Power on VM - CLI / API
by Jeremey Wise 01 Oct '20

01 Oct '20

Can anyone post link. (with examples.. as most documentation for oVirt lacks this).. where I can power on a VM via CLI or API. As of now I cannot login to oVirt-Engine. No errors when I restart it.. https://lists.ovirt.org/archives/list/users@ovirt.org/thread/45KKF5TN5PRQ3R… BUt... I need to get VMs booted. I tried to follow: http://ovirt.github.io/ovirt-engine-api-model/master/ and my server's API web portal https://ovirte01.penguinpages.local/ovirt-engine/apidoc/#/documents/003_com… And.. even get POSTMAN (real newbie at that tool but ran into how to add exported .pem key from portal to session issues) # failed CLI example: Power on VM "ns01" ########### <<<< DRAFT :: 2020-09-30################ # Get key from oVirt engine and import. Ex: from ovirte01 into server 'thor curl -k ' https://ovirte01.penguinpages.local/ovirt-engine/services/pki-resource?reso…' -o ovirt01_ca.pem sudo cp ovirt01_ca.pem /etc/pki/ca-trust/source/anchors sudo update-ca-trust extract openssl s_client -connect ovirte01.penguinpages.local:443 -showcerts < /dev/null <snip... lots of key info back> # Use key during GET list of VMs ?? <meh? # Power on VM <<fubar still> curl -X POST https://ovirte01.penguinpages.local/post -H /ovirt-engine/api/vms/ns01/start HTTP/1.1 <https://ovirte01.penguinpages.local/post%20-H%20/ovirt-engine/api/vms/ns01/…> ##### I just need to power on VM -- p <jeremey.wise(a)gmail.com>enguinpages

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Re: CEPH - Opinions and ROI
by penguin pages 01 Oct '20

01 Oct '20

These are all storage rich servers. Drives: USB 3 64GB Boot / OS 512GB SSD (Gluster HCI: volumes "engine", "data" , "vmstore" "iso" I added last one to .. well to learn if I could extend with LVM ;) 1TB SSD: (VDO+Gluster Manual build due to brick and fqdn issues in oVirt, It did import once it was created so that is good.. ) 1TB SSD/NVMe: (?? CEPH ?? Goal is I can learn technology and play.. but have several independent volumes where I can move important systems to / from / backup so if my playing around messes things up.. I have a fall back. I would try RedHat Container Storage.. but It is a home lab so my budget is all used up on hardware and so CentOS. I am hoping oVirt had a similar setup process like " yum install -y gluster-ansible-roles " but for CEPH. This video implies something of that ilk exists.. https://www.youtube.com/watch?v=wIw7RjHPhzs but <sigh> jumps right into setup.. and fails to mention "how did you get that plugin in cockpit"... and is their an "oVirt" version.

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java.lang.reflect.UndeclaredThrowableException - oVirt engine UI
by Jeremey Wise 01 Oct '20

01 Oct '20

I tried to post on website but .. it did not seem to work... so sorry if this is double posting. oVirt login this AM. accepted username and password but got java error. Restarted oVirt engine ## hosted-engine --set-maintenance --mode=global hosted-engine --vm-shutdown hosted-engine --vm-status #make sure that the status is shutdown before restarting hosted-engine --vm-start hosted-engine --vm-status #make sure the status is health before leaving maintenance mode hosted-engine --set-maintenance --mode=none ## [root@thor ~]# hosted-engine --vm-status --== Host thor.penguinpages.local (id: 1) status ==-- Host ID : 1 Host timestamp : 65342 Score : 3400 Engine status : {"vm": "down", "health": "bad", "detail": "unknown", "reason": "vm not running on this host"} Hostname : thor.penguinpages.local Local maintenance : False stopped : False crc32 : 824c29fd conf_on_shared_storage : True local_conf_timestamp : 65342 Status up-to-date : True Extra metadata (valid at timestamp): metadata_parse_version=1 metadata_feature_version=1 timestamp=65342 (Wed Sep 30 08:11:45 2020) host-id=1 score=3400 vm_conf_refresh_time=65342 (Wed Sep 30 08:11:45 2020) conf_on_shared_storage=True maintenance=False state=EngineDown stopped=False --== Host medusa.penguinpages.local (id: 3) status ==-- Host ID : 3 Host timestamp : 87556 Score : 3400 Engine status : {"vm": "up", "health": "good", "detail": "Up"} Hostname : medusa.penguinpages.local Local maintenance : False stopped : False crc32 : 63296a70 conf_on_shared_storage : True local_conf_timestamp : 87556 Status up-to-date : True Extra metadata (valid at timestamp): metadata_parse_version=1 metadata_feature_version=1 timestamp=87556 (Wed Sep 30 08:11:39 2020) host-id=3 score=3400 vm_conf_refresh_time=87556 (Wed Sep 30 08:11:39 2020) conf_on_shared_storage=True maintenance=False state=EngineUp stopped=False [root@thor ~]# yum update -y Last metadata expiration check: 0:31:17 ago on Wed 30 Sep 2020 09:17:03 AM EDT. Dependencies resolved. Nothing to do. Complete! [root@thor ~]# Gogled around .. just found this thread. ## https://bugzilla.redhat.com/show_bug.cgi?id=1378045 # pgadmin connect to ovirte01.penguinpages.com as engine to db engine select mac_addr from vm_interface "00:16:3e:57:0d:47" "56:6f:86:41:00:01" "56:6f:86:41:00:00" "56:6f:86:41:00:02" "56:6f:86:41:00:03" "56:6f:86:41:00:04" "56:6f:86:41:00:05" "56:6f:86:41:00:15" "56:6f:86:41:00:16" "56:6f:86:41:00:17" "56:6f:86:41:00:18" "56:6f:86:41:00:19" # Note one field is "null" Question: 1) is this bad? 2) How do I fix? 3) Any idea on root cause? -- p <jeremey.wise(a)gmail.com>enguinpages

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Gluster Volumes - Correct Peer Connection
by Jeremey Wise 01 Oct '20

01 Oct '20

I just noticed when HCI setup bult the gluster engine / data / vmstore volumes... it did use correctly the definition of 10Gb "back end" interfaces / hosts. But.. oVirt Engine is NOT referencing this. it lists bricks as 1Gb "managment / host" interfaces. Is this a GUI issue? I doubt this and how do I correct it? ### Data Volume Example Name: data Volume ID: 0ae7b487-8b87-4192-bd30-621d445902fe Volume Type: Replicate Replica Count: 3 Number of Bricks: 3 Transport Types: TCP Maximum no of snapshots: 256 Capacity: 999.51 GiB total, 269.02 GiB used, 730.49 GiB free, 297.91 GiB Guaranteed free, 78 Deduplication/Compression savings (%) medusa.penguinpages.local medusa.penguinpages.local:/gluster_bricks/data/data 25% OK odin.penguinpages.local odin.penguinpages.local:/gluster_bricks/data/data 25% OK thor.penguinpages.local thor.penguinpages.local:/gluster_bricks/data/data 25% OK # I have storage back end of 172.16.101.x which is 10Gb dedicated for replication. Peers reflect this [root@odin c4918f28-00ce-49f9-91c8-224796a158b9]# gluster peer status Number of Peers: 2 Hostname: thorst.penguinpages.local Uuid: 7726b514-e7c3-4705-bbc9-5a90c8a966c9 State: Peer in Cluster (Connected) Hostname: medusast.penguinpages.local Uuid: 977b2c1d-36a8-4852-b953-f75850ac5031 State: Peer in Cluster (Connected) [root@odin c4918f28-00ce-49f9-91c8-224796a158b9]# -- p <jeremey.wise(a)gmail.com>enguinpages

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