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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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Version 4.4.2.6-1.el8 -Console Error: java.lang.reflect.UndeclaredThrowableException
by penguin pages 01 Oct '20

01 Oct '20

Got message this AM when tried to login to oVirt Engine which up till now has been working fine. I can supply username and password and get portal to choose "Administration Portal" or "VM Portal" I have tested both.. both have same response about java.lang.reflect.UndeclaredThrowableException I restarted the 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 # --== Host thor.penguinpages.local (id: 1) status ==-- Host ID : 1 Host timestamp : 70359 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 : 25adf6d0 conf_on_shared_storage : True local_conf_timestamp : 70359 Status up-to-date : True Extra metadata (valid at timestamp): metadata_parse_version=1 metadata_feature_version=1 timestamp=70359 (Wed Sep 30 09:35:22 2020) host-id=1 score=3400 vm_conf_refresh_time=70359 (Wed Sep 30 09:35:22 2020) conf_on_shared_storage=True maintenance=False state=EngineDown stopped=False --== Host medusa.penguinpages.local (id: 3) status ==-- Host ID : 3 Host timestamp : 92582 Score : 3400 Engine status : {"vm": "up", "health": "good", "detail": "Up"} Hostname : medusa.penguinpages.local Local maintenance : False stopped : False crc32 : 623359d2 conf_on_shared_storage : True local_conf_timestamp : 92582 Status up-to-date : True Extra metadata (valid at timestamp): metadata_parse_version=1 metadata_feature_version=1 timestamp=92582 (Wed Sep 30 09:35:25 2020) host-id=3 score=3400 vm_conf_refresh_time=92582 (Wed Sep 30 09:35:25 2020) conf_on_shared_storage=True maintenance=False state=EngineUp stopped=False ## I downloaded and installed key from portal.. thinking that may have been issue.. it was not. I googled around /searched forum and nothing jumped out. (only hit I found in forum https://lists.ovirt.org/pipermail/users/2015-June/033421.html but no note about fix)

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update to 4.4 fails with "Domain format is different from master storage domain format" (v4.3 cluster with V4 NFS storage domains)
by Sergey Kulikov 30 Sep '20

30 Sep '20

Hello, I'm trying to update our hosted-engine ovirt to version 4.4 from 4.3.10 and everything goes fine until hosted-engine --deploy tries to add new hosted_storage domain, we have NFS storage domains, and it fails with error: [ INFO ] TASK [ovirt.hosted_engine_setup : Activate storage domain] [ ERROR ] ovirtsdk4.Error: Fault reason is "Operation Failed". Fault detail is "[Domain format is different from master storage domain format]". HTTP response code is 400. [ ERROR ] fatal: [localhost]: FAILED! => {"changed": false, "msg": "Fault reason is \"Operation Failed\". Fault detail is \"[Domain format is different from master storage domain format]\". HTTP response code is 400."} It looks like storage domains in data center should have been upgraded to V5 when DC and cluster compatibility version was updated to 4.3, but looks like it was implemented in ovirt 4.3.3 and this setup was updated from 4.2 to 4.3 before 4.3.3 was released, so I ended up with 4.3 DCs and clusters with V4 storage domain format. Is there any way to convert V4 to V5 (there are running VMs on them) to be able upgrade to 4.4? --

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Replica Question
by C Williams 30 Sep '20

30 Sep '20

Hello, We recently received 5 servers. All have about 3 TB of storage. I want to deploy an oVirt HCI using as much of my storage and compute resources as possible. Would oVirt support a "replica 5" HCI (Compute/Gluster) cluster ? I have deployed replica 3s and know about replica 2 + arbiter -- but an arbiter would not be applicable here -- since I have equal storage on all of the planned bricks. Thank You For Your Help !! C Williams

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Is it possible to change scheduler optimization settings of cluster using ansible or some other automation way
by kushagra2agarwal＠gmail.com 30 Sep '20

30 Sep '20

Do we have any ansible module or any other CLI based approach which can help us to change 'scheduler optimization' settings of cluster in oVIrt. Scheduler optimization settings of cluster can be found under Scheduling Policy tab ( Compute -> Clusters(select the cluster) -> click on edit and than navigate to scheduling policu option) Scheduler Optimization Optimize for Utilization Optimize for Speed

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VM without Host stuck in "Rebooting" State
by Raphael Höser 29 Sep '20

29 Sep '20

I have a VM which was send a "Reboot" and "Shutdown" command in short succession (two admins who were not thinking the same way) and now the VM is Stuck in "Rebooting". It has no Host assigned and when trying to turn it of (via Shutdown or Power Off) it gives this error: Sep 29, 2020, 10:27:10 AM Failed to power off VM <vm_name> (Host: <UNKNOWN>, User: admin@internal-authz). The engine logs don't provide more info either: 2020-09-29 10:42:18,628+02 INFO [org.ovirt.engine.core.bll.StopVmCommand] (EE-ManagedThreadFactory-engine-Thread-68681) [d4c6547e-c326-4907-8c34-36fd5ab81dfa] Running command: StopVmCommand internal: false. Entities affected : ID: 55edef7a-7a0b-42f0-a98f-9150103fa0b1 Type: VMAction group STOP_VM with role type USER 2020-09-29 10:42:18,628+02 WARN [org.ovirt.engine.core.bll.StopVmCommand] (EE-ManagedThreadFactory-engine-Thread-68681) [d4c6547e-c326-4907-8c34-36fd5ab81dfa] Strange, according to the status 'RebootInProgress' virtual machine '55edef7a-7a0b-42f0-a98f-9150103fa0b1' should be running in a host but it isn't. 2020-09-29 10:42:18,635+02 ERROR [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (EE-ManagedThreadFactory-engine-Thread-68681) [d4c6547e-c326-4907-8c34-36fd5ab81dfa] EVENT_ID: USER_FAILED_STOP_VM(56), Failed to power off VM degum-ci-windows3 (Host: <UNKNOWN>, User: admin@internal-authz). What steps can I do to resolve this? I do not need to restore this machine, I'm totally fine with just deleting it, but it may not impact other running machines.

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oVirt Change hosts to FQDN
by Jeremey Wise 29 Sep '20

29 Sep '20

I posted that I had wiped out the oVirt-engine.. running cleanup on all three nodes. Done a re-deployment. Then to add nodes back.. though all have entries for eachother in /etc/hosts and ssh works fine via short and long name. I added nodes back into cluster.. but had to do it via IP to get past error. Now, if I go to create a volume via the GUI in gluster I get: Error while executing action Create Gluster Volume: Volume create failed: rc=30800 out=() err=["Host 172_16_100_102 is not in 'Peer in Cluster' state"] Which seems to be related to using IP vs DNS to add gluster volumes https://bugzilla.redhat.com/show_bug.cgi?id=1055928 Question: how do i fix the hosts in cluster being defined by IP vs desired hostname? -- jeremey.wise(a)gmail.com

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Source storage domain info in storage live migration
by Gianluca Cecchi 29 Sep '20

29 Sep '20

Hello, having to monitor and check live storage migrations, it seems to me that scrolling through events I can see information about the target storage domain name, but nothing about the source. Is it correct? Can it be added? Which kind of rfe bugzilla should I use in case? Against what? Thanks, Gianluca

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