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rename storage domain
by Gianluca Cecchi 05 Apr '17

05 Apr '17

Hello, I'm in 4.1.1 and imported a storage domain. In import window there is option to put name, but actually afterwards the name is the same as the source one... Is this expected? Is there any way to change name of storage domain? thanks, Gianluca

2 3

Moving from fc based to iSCSI based
by Gianluca Cecchi 05 Apr '17

05 Apr '17

Hello, I have to move some VMs from FCP based storage domain to iSCSI based storage domain. Can I do it offline or online keeping in mind that: Host1, Host2 have access only to the FCP SD Host3, Host4 have access only to the iSCSI SD They are all managed by the same engine in the same DC but in different cluster I suppose it happens through network, correct? Thanks in advance, Gianluca

2 8

Question about firewall on hypervisor
by Gianluca Cecchi 05 Apr '17

05 Apr '17

Suppose I want to disable firewall at already installed hypervisor side (eg because I want to setup OVN and currently if I remember correctly it needs to be disabled for that), can I simply disable the related services through systemctl stop iptables systemctl disable iptables systemctl stop firewalld systemctl disable firewalld Or is anything else to do at hypervisor and/or engine side? I don't see anything in web admin gui editing the host, while when I add the host there is the checkbox "Automatically configure host firewall".... Thanks, Gianluca

2 1

Question about import domain and templates
by Gianluca Cecchi 05 Apr '17

05 Apr '17

Hello, in environment A I have 2 storage domains ST1 and ST2 I have to detach ST2 and import it into another environment B. On ST2 I have some VMs whose template disk is currently on ST1... Does this constitute a problem at destination import? I see that for disks of templates I can only copy and not move them... Can I copy the template disk from ST1 to ST2 befor detaching, so that it will be imported at destination too? What should I do at destination, then? Thanks, Gianluca

2 3

Update of ovirt-guest-agent for Debian Jessie
by Christophe TREFOIS 04 Apr '17

04 Apr '17

--Apple-Mail=_1C9D631E-5E5D-46F7-879C-F91E31E19962 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii Hi, Could you update ovirt-guest-agent as latest is 1.0.13 but on Debain = mirror it is 1.0.10? 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1 0

info on performance of cloning a snapshot
by Gianluca Cecchi 04 Apr '17

04 Apr '17

Hello, I'm on 4.1.1 environment. Storage domain is iSCSI (with multipath) and able to write at about 200 MBytes/s when making a test inside a VM (100MB x 2) While cloning a snapshot it seems the performace is quite lower... It begins at about 12MB/s (6 x 2) then increases at about 30MB/s (15 x 2) with maximum of 50MB/s (25 x 2), all balanced across the two iSCSI network adapters The related process on hypervisor vdsm 2772 3701 4 15:47 ? 00:00:08 /usr/bin/qemu-img convert -p -t none -T none -f qcow2 /rhev/data-center/ef17cad6-7724-4cd8-96e3-9af6e529db51/94795322-92a7-4904-80c1-83d6b629d38a/images/073519dc-440d-418d-9e0c-a7ac4812ea82/845a9008-8ece-4cf2-9828-f286640b5f0e -O qcow2 -o compat=1.1 /rhev/data-center/mnt/blockSD/94795322-92a7-4904-80c1-83d6b629d38a/images/54c40b95-c0e5-42db-a6ba-c00f8d337fdc/5987e84f-28be-46c4-bc3a-688d5f7fd025 Not a big problem, only to know: is there any limiting/tunable factor in any vdsm/engine parameter? Or is it related to the command "qemu-img convert" itself or anything else? Thanks, Gianluca

1 0

general storage exception ... not using lvmetad
by Gianluca Cecchi 04 Apr '17

04 Apr '17

Hello, on my 4.1 environment sometimes I get this kind of message, typically when I create a snapshot. Please note that the snapshot is correctly created: I get the event between the snapshot creation initiated and completed events VDSM ovmsrv05 command TeardownImageVDS failed: Cannot deactivate Logical Volume: ('General Storage Exception: ("5 [] [\' WARNING: Not using lvmetad because config setting use_lvmetad=0.\', \' WARNING: To avoid corruption, rescan devices to make changes visible (pvscan --cache).\', \' Logical volume 922b5269-ab56-4c4d-838f-49d33427e2ab/79350ec5-eea5-458b-a3ee-ba394d2cda27 in use.\', \' Logical volume 922b5269-ab56-4c4d-838f-49d33427e2ab/3590f38b-1e3b-4170-a901-801ee5d21d59 in use.\']\\n922b5269-ab56-4c4d-838f-49d33427e2ab/[\'3590f38b-1e3b-4170-a901-801ee5d21d59\', \'79350ec5-eea5-458b-a3ee-ba394d2cda27\']",)',) What is the exact meaning and how can I crosscheck to solve the possible anomaly...? What about lvmetad reference inside the message? Is it an option that in oVirt can be configured or not at all for now? Thanks, Gianluca

2 2

VM has been paused due to storage I/O problem
by Gianluca Cecchi 04 Apr '17

04 Apr '17

Hello, my test environment is composed by 2 old HP blades BL685c G1 (ovmsrv05 and ovmsrv06) and they are connected in a SAN with FC-switches to an old IBM DS4700 storage array. Apart from being old, they seem all ok from an hw point of view. I have configured oVirt 4.0.6 and an FCP storage domain. The hosts are plain CentOS 7.3 servers fully updated. It is not an hosted engine environment: the manager is a vm outside of the cluster. I have configured power mgmt on both and it works good. I have at the moment only one VM for test and it is doing quite nothing. Starting point: ovmsrv05 is in maintenance (since about 2 days) and the VM is running on ovmsrv06. I update qemu-kvm package on ovmsrv05 and then I restart it from web admin gui: Power Mgmt --> Restart Sequence of events in pane and the problem in subject: Jan 31, 2017 10:29:43 AM Host ovmsrv05 power management was verified successfully. Jan 31, 2017 10:29:43 AM Status of host ovmsrv05 was set to Up. Jan 31, 2017 10:29:38 AM Executing power management status on Host ovmsrv05 using Proxy Host ovmsrv06 and Fence Agent ilo:10.4.192.212. Jan 31, 2017 10:29:29 AM Activation of host ovmsrv05 initiated by admin@internal-authz. Jan 31, 2017 10:28:05 AM VM ol65 has recovered from paused back to up. Jan 31, 2017 10:27:55 AM VM ol65 has been paused due to storage I/O problem. Jan 31, 2017 10:27:55 AM VM ol65 has been paused. Jan 31, 2017 10:25:52 AM Host ovmsrv05 was restarted by admin@internal-authz. Jan 31, 2017 10:25:52 AM Host ovmsrv05 was started by admin@internal-authz. Jan 31, 2017 10:25:52 AM Power management start of Host ovmsrv05 succeeded. Jan 31, 2017 10:25:50 AM Executing power management status on Host ovmsrv05 using Proxy Host ovmsrv06 and Fence Agent ilo:10.4.192.212. Jan 31, 2017 10:25:37 AM Executing power management start on Host ovmsrv05 using Proxy Host ovmsrv06 and Fence Agent ilo:10.4.192.212. Jan 31, 2017 10:25:37 AM Power management start of Host ovmsrv05 initiated. Jan 31, 2017 10:25:37 AM Auto fence for host ovmsrv05 was started. Jan 31, 2017 10:25:37 AM All VMs' status on Non Responsive Host ovmsrv05 were changed to 'Down' by admin@internal-authz Jan 31, 2017 10:25:36 AM Host ovmsrv05 was stopped by admin@internal-authz. Jan 31, 2017 10:25:36 AM Power management stop of Host ovmsrv05 succeeded. Jan 31, 2017 10:25:34 AM Executing power management status on Host ovmsrv05 using Proxy Host ovmsrv06 and Fence Agent ilo:10.4.192.212. Jan 31, 2017 10:25:15 AM Executing power management stop on Host ovmsrv05 using Proxy Host ovmsrv06 and Fence Agent ilo:10.4.192.212. Jan 31, 2017 10:25:15 AM Power management stop of Host ovmsrv05 initiated. Jan 31, 2017 10:25:12 AM Executing power management status on Host ovmsrv05 using Proxy Host ovmsrv06 and Fence Agent ilo:10.4.192.212. Watching the timestamps, the culprit seems the reboot time of ovmsrv05 that detects some LUNs in owned state and other ones in unowned Full messages of both hosts here: https://drive.google.com/file/d/0BwoPbcrMv8mvekZQT1pjc0NMRlU/view?usp=shari… and https://drive.google.com/file/d/0BwoPbcrMv8mvcjBCYVdFZWdXTms/view?usp=shari… At this time there are 4 LUNs globally seen by the two hosts but only 1 of them is currently configured as the only storage domain in oVirt cluster. [root@ovmsrv05 ~]# multipath -l | grep ^36 3600a0b8000299aa80000d08b55014119 dm-5 IBM ,1814 FAStT 3600a0b80002999020000cd3c5501458f dm-3 IBM ,1814 FAStT 3600a0b80002999020000ccf855011198 dm-2 IBM ,1814 FAStT 3600a0b8000299aa80000d08955014098 dm-4 IBM ,1814 FAStT the configured one: [root@ovmsrv05 ~]# multipath -l 3600a0b8000299aa80000d08b55014119 3600a0b8000299aa80000d08b55014119 dm-5 IBM ,1814 FAStT size=4.0T features='0' hwhandler='1 rdac' wp=rw |-+- policy='service-time 0' prio=0 status=active | |- 0:0:1:3 sdl 8:176 active undef running | `- 2:0:1:3 sdp 8:240 active undef running `-+- policy='service-time 0' prio=0 status=enabled |- 0:0:0:3 sdd 8:48 active undef running `- 2:0:0:3 sdi 8:128 active undef running In mesages of booting node, arounf the problem registered by the storage: [root@ovmsrv05 ~]# grep owned /var/log/messages Jan 31 10:27:38 ovmsrv05 kernel: scsi 0:0:0:1: rdac: LUN 1 (RDAC) (owned) Jan 31 10:27:38 ovmsrv05 kernel: scsi 0:0:0:2: rdac: LUN 2 (RDAC) (owned) Jan 31 10:27:38 ovmsrv05 kernel: scsi 0:0:0:3: rdac: LUN 3 (RDAC) (unowned) Jan 31 10:27:38 ovmsrv05 kernel: scsi 2:0:0:1: rdac: LUN 1 (RDAC) (owned) Jan 31 10:27:38 ovmsrv05 kernel: scsi 0:0:0:4: rdac: LUN 4 (RDAC) (unowned) Jan 31 10:27:38 ovmsrv05 kernel: scsi 2:0:0:2: rdac: LUN 2 (RDAC) (owned) Jan 31 10:27:38 ovmsrv05 kernel: scsi 0:0:1:1: rdac: LUN 1 (RDAC) (unowned) Jan 31 10:27:38 ovmsrv05 kernel: scsi 2:0:0:3: rdac: LUN 3 (RDAC) (unowned) Jan 31 10:27:38 ovmsrv05 kernel: scsi 2:0:0:4: rdac: LUN 4 (RDAC) (unowned) Jan 31 10:27:38 ovmsrv05 kernel: scsi 0:0:1:2: rdac: LUN 2 (RDAC) (unowned) Jan 31 10:27:38 ovmsrv05 kernel: scsi 2:0:1:1: rdac: LUN 1 (RDAC) (unowned) Jan 31 10:27:38 ovmsrv05 kernel: scsi 0:0:1:3: rdac: LUN 3 (RDAC) (owned) Jan 31 10:27:38 ovmsrv05 kernel: scsi 2:0:1:2: rdac: LUN 2 (RDAC) (unowned) Jan 31 10:27:38 ovmsrv05 kernel: scsi 0:0:1:4: rdac: LUN 4 (RDAC) (owned) Jan 31 10:27:38 ovmsrv05 kernel: scsi 2:0:1:3: rdac: LUN 3 (RDAC) (owned) Jan 31 10:27:39 ovmsrv05 kernel: scsi 2:0:1:4: rdac: LUN 4 (RDAC) (owned) I don't know exactly the meaning of owned/unowned in the output above.. Possibly it detects the 0:0:1:3 and 2:0:1:3 paths (those of the active group) as "owned" and this could have created problems with the active node? On active node strangely I don't loose all the paths, but the VM has been paused anyway [root@ovmsrv06 log]# grep "remaining active path" /var/log/messages Jan 31 10:27:48 ovmsrv06 multipathd: 3600a0b8000299aa80000d08b55014119: remaining active paths: 3 Jan 31 10:27:49 ovmsrv06 multipathd: 3600a0b8000299aa80000d08b55014119: remaining active paths: 2 Jan 31 10:27:56 ovmsrv06 multipathd: 3600a0b8000299aa80000d08b55014119: remaining active paths: 3 Jan 31 10:27:56 ovmsrv06 multipathd: 3600a0b8000299aa80000d08b55014119: remaining active paths: 2 Jan 31 10:27:56 ovmsrv06 multipathd: 3600a0b8000299aa80000d08b55014119: remaining active paths: 1 Jan 31 10:27:57 ovmsrv06 multipathd: 3600a0b8000299aa80000d08b55014119: remaining active paths: 2 Jan 31 10:28:01 ovmsrv06 multipathd: 3600a0b8000299aa80000d08b55014119: remaining active paths: 3 Jan 31 10:28:01 ovmsrv06 multipathd: 3600a0b8000299aa80000d08b55014119: remaining active paths: 4 I'm not an expert of this storage array in particular, and of the rdac hardware handler in general. What I see is that multipath.conf on both nodes: # VDSM REVISION 1.3 defaults { polling_interval 5 no_path_retry fail user_friendly_names no flush_on_last_del yes fast_io_fail_tmo 5 dev_loss_tmo 30 max_fds 4096 } devices { device { # These settings overrides built-in devices settings. It does not apply # to devices without built-in settings (these use the settings in the # "defaults" section), or to devices defined in the "devices" section. # Note: This is not available yet on Fedora 21. For more info see # https://bugzilla.redhat.com/1253799 all_devs yes no_path_retry fail } } beginning of /proc/scsi/scsi [root@ovmsrv06 ~]# cat /proc/scsi/scsi Attached devices: Host: scsi1 Channel: 01 Id: 00 Lun: 00 Vendor: HP Model: LOGICAL VOLUME Rev: 1.86 Type: Direct-Access ANSI SCSI revision: 05 Host: scsi0 Channel: 00 Id: 00 Lun: 01 Vendor: IBM Model: 1814 FAStT Rev: 0916 Type: Direct-Access ANSI SCSI revision: 05 ... To get default acquired config for this storage: multpathd -k > show config I can see: device { vendor "IBM" product "^1814" product_blacklist "Universal Xport" path_grouping_policy "group_by_prio" path_checker "rdac" features "0" hardware_handler "1 rdac" prio "rdac" failback immediate rr_weight "uniform" no_path_retry "fail" } and defaults { verbosity 2 polling_interval 5 max_polling_interval 20 reassign_maps "yes" multipath_dir "/lib64/multipath" path_selector "service-time 0" path_grouping_policy "failover" uid_attribute "ID_SERIAL" prio "const" prio_args "" features "0" path_checker "directio" alias_prefix "mpath" failback "manual" rr_min_io 1000 rr_min_io_rq 1 max_fds 4096 rr_weight "uniform" no_path_retry "fail" queue_without_daemon "no" flush_on_last_del "yes" user_friendly_names "no" fast_io_fail_tmo 5 dev_loss_tmo 30 bindings_file "/etc/multipath/bindings" wwids_file /etc/multipath/wwids log_checker_err always find_multipaths no retain_attached_hw_handler no detect_prio no hw_str_match no force_sync no deferred_remove no ignore_new_boot_devs no skip_kpartx no config_dir "/etc/multipath/conf.d" delay_watch_checks no delay_wait_checks no retrigger_tries 3 retrigger_delay 10 missing_uev_wait_timeout 30 new_bindings_in_boot no } Any hint on how to tune multipath.conf so that a powering on server doesn't create problems to running VMs? Thanks in advance, Gianluca

6 22

ovirt ugrade to 4.1.1 problem with ovirt-engine-notifier.service
by Kapetanakis Giannis 04 Apr '17

04 Apr '17

Hi, Centos 7 (no self hosted). Trying to upgrade from 4.1.0 to 4.1.1 he setup fails to start ovirt-engine-notifier.service ● ovirt-engine-notifier.service - oVirt Engine Notifier Loaded: loaded (/usr/lib/systemd/system/ovirt-engine-notifier.service; enabled; vendor preset: disabled) Active: failed (Result: exit-code) since Tue 2017-04-04 15:21:28 EEST; 30s ago Process: 4489 ExecStart=/usr/share/ovirt-engine/services/ovirt-engine-notifier/ovirt-engine-notifier.py --redirect-output --systemd=notify $EXTRA_ARGS start (code=exited, status=1/FAILURE) Main PID: 4489 (code=exited, status=1/FAILURE) Apr 04 15:21:28 vmgr.cc.uoc.gr ovirt-engine-notifier.py[4489]: stderr: at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:198) Apr 04 15:21:28 vmgr.cc.uoc.gr ovirt-engine-notifier.py[4489]: stderr: at org.jboss.modules.ConcurrentClassLoader.performLoadClassUnchecked(ConcurrentClassLoader.java:363) Apr 04 15:21:28 vmgr.cc.uoc.gr ovirt-engine-notifier.py[4489]: stderr: at org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:351) Apr 04 15:21:28 vmgr.cc.uoc.gr ovirt-engine-notifier.py[4489]: stderr: at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:93) Apr 04 15:21:28 vmgr.cc.uoc.gr ovirt-engine-notifier.py[4489]: stderr: ... 7 more Apr 04 15:21:28 vmgr.cc.uoc.gr ovirt-engine-notifier.py[4489]: Validation failed returncode is 1: Apr 04 15:21:28 vmgr.cc.uoc.gr systemd[1]: ovirt-engine-notifier.service: main process exited, code=exited, status=1/FAILURE Apr 04 15:21:28 vmgr.cc.uoc.gr systemd[1]: Failed to start oVirt Engine Notifier. Apr 04 15:21:28 vmgr.cc.uoc.gr systemd[1]: Unit ovirt-engine-notifier.service entered failed state. Apr 04 15:21:28 vmgr.cc.uoc.gr systemd[1]: ovirt-engine-notifier.service failed. >From installation log: 2017-04-04 15:07:48 DEBUG otopi.context context._executeMethod:128 Stage closeup METHOD otopi.plugins.ovirt_engine_common.base.system.hostile_services.Plugin._closeup 2017-04-04 15:07:48 DEBUG otopi.plugins.otopi.services.systemd systemd.exists:73 check if service ovirt-engine-notifier exists 2017-04-04 15:07:48 DEBUG otopi.plugins.otopi.services.systemd plugin.executeRaw:813 execute: ('/bin/systemctl', 'show', '-p', 'LoadState', 'ovirt-engine-notifier.service'), executable='None', cwd='None', env=None 2017-04-04 15:07:48 DEBUG otopi.plugins.otopi.services.systemd plugin.executeRaw:863 execute-result: ('/bin/systemctl', 'show', '-p', 'LoadState', 'ovirt-engine-notifier.service'), rc=0 2017-04-04 15:07:48 DEBUG otopi.plugins.otopi.services.systemd plugin.execute:921 execute-output: ('/bin/systemctl', 'show', '-p', 'LoadState', 'ovirt-engine-notifier.service') stdout: LoadState=loaded 2017-04-04 15:07:48 DEBUG otopi.plugins.otopi.services.systemd plugin.execute:926 execute-output: ('/bin/systemctl', 'show', '-p', 'LoadState', 'ovirt-engine-notifier.service') stderr: 2017-04-04 15:07:48 DEBUG otopi.plugins.otopi.services.systemd systemd.state:130 starting service ovirt-engine-notifier 2017-04-04 15:07:48 DEBUG otopi.plugins.otopi.services.systemd plugin.executeRaw:813 execute: ('/bin/systemctl', 'start', 'ovirt-engine-notifier.service'), executable='None', cwd='None', env=None 2017-04-04 15:07:49 DEBUG otopi.plugins.otopi.services.systemd plugin.executeRaw:863 execute-result: ('/bin/systemctl', 'start', 'ovirt-engine-notifier.service'), rc=1 2017-04-04 15:07:49 DEBUG otopi.plugins.otopi.services.systemd plugin.execute:921 execute-output: ('/bin/systemctl', 'start', 'ovirt-engine-notifier.service') stdout: 2017-04-04 15:07:48 DEBUG otopi.plugins.otopi.services.systemd plugin.execute:926 execute-output: ('/bin/systemctl', 'show', '-p', 'LoadState', 'ovirt-engine-notifier.service') stderr: 2017-04-04 15:07:48 DEBUG otopi.plugins.otopi.services.systemd systemd.state:130 starting service ovirt-engine-notifier 2017-04-04 15:07:48 DEBUG otopi.plugins.otopi.services.systemd plugin.executeRaw:813 execute: ('/bin/systemctl', 'start', 'ovirt-engine-notifier.service'), executable='None', cwd='None', env=None 2017-04-04 15:07:49 DEBUG otopi.plugins.otopi.services.systemd plugin.executeRaw:863 execute-result: ('/bin/systemctl', 'start', 'ovirt-engine-notifier.service'), rc=1 2017-04-04 15:07:49 DEBUG otopi.plugins.otopi.services.systemd plugin.execute:921 execute-output: ('/bin/systemctl', 'start', 'ovirt-engine-notifier.service') stdout: 2017-04-04 15:07:49 DEBUG otopi.plugins.otopi.services.systemd plugin.execute:926 execute-output: ('/bin/systemctl', 'start', 'ovirt-engine-notifier.service') stderr: Job for ovirt-engine-notifier.service failed because the control process exited with error code. See "systemctl status ovirt-engine-notifier.service" and "journalctl -xe" for details. 2017-04-04 15:07:49 DEBUG otopi.context context._executeMethod:142 method exception Traceback (most recent call last): File "/usr/lib/python2.7/site-packages/otopi/context.py", line 132, in _executeMethod method['method']() File "/usr/share/ovirt-engine/setup/bin/../plugins/ovirt-engine-common/base/system/hostile_services.py", line 104, in _closeup state=True File "/usr/share/otopi/plugins/otopi/services/systemd.py", line 141, in state service=name, RuntimeError: Failed to start service 'ovirt-engine-notifier' 2017-04-04 15:07:49 ERROR otopi.context context._executeMethod:151 Failed to execute stage 'Closing up': Failed to start service 'ovirt-engine-notifier' G

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ovirt-guest-agent logs is this normal behavior
by rob cousins 04 Apr '17

04 Apr '17

After installing ovirt-guest-agent on ubuntu 16.04 following these instructions https://www.ovirt.org/documentation/how-to/guest-agent/install-the-guest-ag… i get the following messages in syslog is this normal behavior ? Apr 3 14:25:36 ubuntu python[1521]: #015Reading package lists... 0%#015#015Reading package lists... 100%#015#015Reading package lists... Done Apr 3 14:25:37 ubuntu python[1521]: #015Building dependency tree... 0%#015#015Building dependency tree... 0%#015#015Building dependency tree... 50%#015#015Building dependency tree... 50%#015#015Building dependency tree Apr 3 14:25:37 ubuntu python[1521]: #015Reading state information... 0%#015#015Reading state information... 0%#015#015Reading state information... Done Thanks Rob.

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