- Users - oVirt List Archives

help using nvme/tcp storage with cinderlib and Managed Block Storage
by muli＠lightbitslabs.com 23 Feb '22

23 Feb '22

Hi everyone, We are trying to set up ovirt (4.3.10 at the moment, customer preference) to use Lightbits (https://www.lightbitslabs.com) storage via our openstack cinder driver with cinderlib. The cinderlib and cinder driver bits are working fine but when ovirt tries to attach the device to a VM we get the following error: libvirt: error : cannot create file '/var/run/libvirt/qemu/18-mulivm1.dev/mapper/': Is a directory We get the same error regardless of whether I try to run the VM or try to attach the device while it is running. The error appears to come from vdsm which passes /dev/mapper as the prefered device? 2022-02-22 09:50:11,848-0500 INFO (vm/3ae7dcf4) [vdsm.api] FINISH appropriateDevice return={'path': '/dev/mapper/', 'truesize': '53687091200', 'apparentsize': '53687091200'} from=internal, task_id=77f40c4e-733d-4d82-b418-aaeb6b912d39 (api:54) 2022-02-22 09:50:11,849-0500 INFO (vm/3ae7dcf4) [vds] prepared volume path: /dev/mapper/ (clientIF:510) Suggestions for how to debug this further? Is this a known issue? Did anyone get nvme/tcp storage working with ovirt and/or vdsm? Thanks, Muli

4 7

Migrating VMs from 4.3 Ovirt Env to new 4.4 Env
by Abe E 23 Feb '22

23 Feb '22

So as title states I am moving VMs from an old system of ours with alot of issues to a new 4.4 HC Gluster envr although it seems I am running into what I have learnt is a 4.3 bug of some sort with exporting OVAs. Some of my OVAs are showing large GB sizes although their actual size may be 20K so they are showing no boot device as well, theres really no data there. Some OVAs are fine but some are broken. So I was wondering if anyone has dealt with this and whats the best way around this issue? I have no access remotely at the moment but when I get to them, I read somewhere its better to just detach disks and download them to a HDD for example and build new VMs and upload those disks and attach them instead this way? Please do share if you have any better ways, usually I just Export OVA to an external HDD, remount to new ovirt and import OVA but seems a few of these VMs out of alot did not succeed and I am running out of downtime window. Thanks a bunch, I have noticed repeated names helping me, I am very grateful for your help.

3 5

Re: oVirt alternatives
by Thomas Hoberg 22 Feb '22

22 Feb '22

That's exactly the direction I originally understood oVirt would go, with the ability to run VMs and container side-by-side on the bare metal or nested with containers inside VMs for stronger resource or security isolation and network virtualization. To me it sounded especially attractive with an HCI underpinning so you could deploy it also in the field with small 3 node clusters. But combining all those features evidently comes at too high a cost for all the integration and the customer base is either too small or too poor: the cloud players are all out on making sure you no longer run any hardware and then it's really just about pushing your applications there as cloud native or "IaaS" compatible as needed. E.g. I don't see PCI pass-through coming to kubevirt to enable GPU use, because it ties the machine to a specific host and goes against the grain of K8 as I understand it. Memory overcommit is quite funny, really, because it's the same issue as the original virtual memory: essentially you lie to your consumer about the resources available and then swap pages forth and back in an attempt to make all your consumers happy. It was processes for virtual memory, it's VMs now for the hypervisor and in both cases it's about the consumer and the provider not continously negotiating for the resources they need and the price they are willing to pay. That negotiation is always better at the highest level of abstraction, the application itself, which why implementing it at the lower levels (e.g. VMs) becomes less useful and needed. And then there is technology like CXL which essentially turns RAM in to a fabric and your local CPU will just get RAM from another piece of hardware when your application needs more RAM and is willing to pay the premium something will charge for it. With that type of hardware much of what hypervisors used to do goes into DPUs/IPUs and CPUs are just running applications making hypercalls. The kernel is just there to bootstrap. Not sure we'll see that type of hardware at home or in the edge, though...

4 7

Gluster Performance issues
by Alex Morrison 22 Feb '22

22 Feb '22

Hello All, We have 3 servers with a raid 50 array each, we are having extreme performance issues with our gluster, writes on gluster seem to take at least 3 times longer than on the raid directly. Can this be improved? I've read through several other performance issues threads but have been unable to make any improvements "gluster volume info" and "gluster volume profile vmstore info" is below ========================================================================================================================= -Inside Gluster - test took 35+ hours: [root@ovirt1 1801ed24-5b55-4431-9813-496143367f66]# bonnie++ -d . -s 600G -n 0 -m TEST -f -b -u root Using uid:0, gid:0. Writing intelligently...done Rewriting...done Reading intelligently...done start 'em...done...done...done...done...done... Version 1.98 ------Sequential Output------ --Sequential Input- --Random- -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks-- Name:Size etc /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP TEST 600G 35.7m 17 5824k 7 112m 13 182.7 6 Latency 5466ms 12754ms 3499ms 1589ms 1.98,1.98,TEST,1,1644359706,600G,,8192,5,,,36598,17,5824,7,,,114950,13,182.7,6,,,,,,,,,,,,,,,,,,,5466ms,12754ms,,3499ms,1589ms,,,,,, ========================================================================================================================= -Outside Gluster - test took 18 minutes: [root@ovirt1 1801ed24-5b55-4431-9813-496143367f66]# bonnie++ -d . -s 600G -n 0 -m TEST -f -b -u root Using uid:0, gid:0. Writing intelligently...done Rewriting...done Reading intelligently...done start 'em...done...done...done...done...done... Version 1.98 ------Sequential Output------ --Sequential Input- --Random- -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks-- Name:Size etc /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP TEST 600G 567m 78 149m 30 307m 37 83.0 57 Latency 205ms 4630ms 1450ms 679ms 1.98,1.98,TEST,1,1648288012,600G,,8192,5,,,580384,78,152597,30,,,314533,37,83.0,57,,,,,,,,,,,,,,,,,,,205ms,4630ms,,1450ms,679ms,,,,,, ========================================================================================================================= [root@ovirt1 1801ed24-5b55-4431-9813-496143367f66]# gluster volume info Volume Name: engine Type: Replicate Volume ID: 7ed15c5a-f054-450c-bac9-3ad1b4e5931b Status: Started Snapshot Count: 0 Number of Bricks: 1 x 3 = 3 Transport-type: tcp Bricks: Brick1: ovirt1-storage.dgi:/gluster_bricks/engine/engine Brick2: ovirt2-storage.dgi:/gluster_bricks/engine/engine Brick3: ovirt3-storage.dgi:/gluster_bricks/engine/engine Options Reconfigured: cluster.granular-entry-heal: enable performance.strict-o-direct: on network.ping-timeout: 30 storage.owner-gid: 36 storage.owner-uid: 36 server.event-threads: 4 client.event-threads: 4 cluster.choose-local: off user.cifs: off features.shard: on cluster.shd-wait-qlength: 10000 cluster.shd-max-threads: 8 cluster.locking-scheme: granular cluster.data-self-heal-algorithm: full cluster.server-quorum-type: server cluster.quorum-type: auto cluster.eager-lock: enable network.remote-dio: off performance.low-prio-threads: 32 performance.io-cache: off performance.read-ahead: off performance.quick-read: off transport.address-family: inet storage.fips-mode-rchecksum: on nfs.disable: on performance.client-io-threads: on diagnostics.latency-measurement: on diagnostics.count-fop-hits: on Volume Name: vmstore Type: Replicate Volume ID: 2670ff29-8d43-4610-a437-c6ec2c235753 Status: Started Snapshot Count: 0 Number of Bricks: 1 x 3 = 3 Transport-type: tcp Bricks: Brick1: ovirt1-storage.dgi:/gluster_bricks/vmstore/vmstore Brick2: ovirt2-storage.dgi:/gluster_bricks/vmstore/vmstore Brick3: ovirt3-storage.dgi:/gluster_bricks/vmstore/vmstore Options Reconfigured: cluster.granular-entry-heal: enable performance.strict-o-direct: on network.ping-timeout: 20 storage.owner-gid: 36 storage.owner-uid: 36 server.event-threads: 4 client.event-threads: 4 cluster.choose-local: off user.cifs: off features.shard: on cluster.shd-wait-qlength: 10000 cluster.shd-max-threads: 8 cluster.locking-scheme: granular cluster.data-self-heal-algorithm: full cluster.server-quorum-type: server cluster.quorum-type: auto cluster.eager-lock: enable network.remote-dio: off performance.low-prio-threads: 32 performance.io-cache: off performance.read-ahead: off performance.quick-read: off transport.address-family: inet storage.fips-mode-rchecksum: on nfs.disable: on performance.client-io-threads: on diagnostics.latency-measurement: on diagnostics.count-fop-hits: on server.tcp-user-timeout: 20 server.keepalive-time: 10 server.keepalive-interval: 2 server.keepalive-count: 5 cluster.lookup-optimize: off ========================================================================================================================= [root@ovirt1 ~]# gluster volume profile vmstore info Brick: ovirt1-storage.dgi:/gluster_bricks/vmstore/vmstore --------------------------------------------------------- Cumulative Stats: Block Size: 1b+ 4b+ 8b+ No. of Reads: 0 0 0 No. of Writes: 4021 2 64 Block Size: 64b+ 128b+ 256b+ No. of Reads: 0 134 405 No. of Writes: 2 32 119 Block Size: 512b+ 1024b+ 2048b+ No. of Reads: 2890 2617 3059 No. of Writes: 113881 93551 131776 Block Size: 4096b+ 8192b+ 16384b+ No. of Reads: 1096597 164931 181569 No. of Writes: 41091001 20499776 3230472 Block Size: 32768b+ 65536b+ 131072b+ No. of Reads: 212970 96574 244017 No. of Writes: 1304688 991154 3412866 Block Size: 262144b+ 524288b+ 1048576b+ No. of Reads: 0 0 0 No. of Writes: 15 18 65166 %-latency Avg-latency Min-Latency Max-Latency No. of calls Fop --------- ----------- ----------- ----------- ------------ ---- 0.00 0.00 us 0.00 us 0.00 us 6396 FORGET 0.00 0.00 us 0.00 us 0.00 us 189759 RELEASE 0.00 0.00 us 0.00 us 0.00 us 31292 RELEASEDIR 0.00 159.99 us 44.37 us 278.66 us 79 STAT 0.00 364.42 us 174.87 us 644.45 us 96 LINK 0.00 2714.10 us 203.53 us 47397.28 us 26 RMDIR 0.00 688.26 us 72.39 us 53857.63 us 186 SETXATTR 0.00 974.01 us 271.02 us 27298.52 us 176 RENAME 0.00 5254.64 us 159.48 us 84454.46 us 35 DISCARD 0.00 1133.84 us 86.47 us 87096.92 us 186 REMOVEXATTR 0.00 7907.47 us 221.82 us 182276.21 us 29 FALLOCATE 0.00 8304.51 us 311.89 us 42725.81 us 34 MKDIR 0.00 5758.19 us 296.39 us 21950.99 us 81 TRUNCATE 0.00 401.16 us 23.68 us 132668.93 us 3621 LK 0.00 545.48 us 14.22 us 1076517.76 us 6796 READDIR 0.00 2250.78 us 336.61 us 1071764.61 us 4257 CREATE 0.00 531.76 us 1.35 us 1723046.94 us 31292 OPENDIR 0.01 2058.67 us 196.74 us 1587752.27 us 21986 MKNOD 0.01 1241.28 us 22.61 us 1548642.70 us 52674 READDIRP 0.01 67508.32 us 100.01 us 3002069.81 us 1100 FTRUNCATE 0.01 412.74 us 10.94 us 5111334.35 us 209731 FLUSH 0.02 78668.59 us 183.06 us 3012629.87 us 1222 SETATTR 0.03 761.13 us 21.13 us 4611854.15 us 249094 STATFS 0.03 1132.33 us 45.51 us 3159531.87 us 185654 OPEN 0.03 2010.33 us 14.43 us 3158098.85 us 107824 GETXATTR 0.04 2765.29 us 61.38 us 3159208.13 us 100484 XATTROP 0.13 1367.04 us 51.46 us 8450420.87 us 595299 FSTAT 0.46 157440.90 us 47.62 us 13405712.93 us 18218 UNLINK 0.60 1274.67 us 19.60 us 11985005.14 us 2980806 LOOKUP 1.67 16645.99 us 12.80 us 6869488.64 us 631331 ENTRYLK 4.10 7504.86 us 39.52 us 11749528.82 us 3430506 READ 4.31 56942.36 us 16.57 us 23654127.65 us 475563 INODELK 6.09 660.89 us 11.02 us 20571410.32 us 57908331 FINODELK 20.59 1823.35 us 63.26 us 23639762.45 us 70934143 WRITE 25.70 2680.82 us 35.37 us 13636394.75 us 60223005 FXATTROP 36.14 3164.86 us 52.35 us 16805886.48 us 71739477 FSYNC 0.00 0.00 us 0.00 us 0.00 us 78458 UPCALL Duration: 404667 seconds Data Read: 59850935724 bytes Data Written: 1070158035683 bytes Interval 43 Stats: Block Size: 1b+ 256b+ 512b+ No. of Reads: 0 14 3 No. of Writes: 12 4 252 Block Size: 1024b+ 2048b+ 4096b+ No. of Reads: 0 0 8105 No. of Writes: 100 34 147355 Block Size: 8192b+ 16384b+ 32768b+ No. of Reads: 1559 1630 1494 No. of Writes: 86013 17318 8687 Block Size: 65536b+ 131072b+ No. of Reads: 532 764 No. of Writes: 8617 36317 %-latency Avg-latency Min-Latency Max-Latency No. of calls Fop --------- ----------- ----------- ----------- ------------ ---- 0.00 0.00 us 0.00 us 0.00 us 16 FORGET 0.00 0.00 us 0.00 us 0.00 us 665 RELEASE 0.00 0.00 us 0.00 us 0.00 us 52 RELEASEDIR 0.00 181.75 us 181.75 us 181.75 us 1 STAT 0.00 914.55 us 858.55 us 970.56 us 2 TRUNCATE 0.00 792.11 us 681.24 us 1051.32 us 4 RENAME 0.00 374.44 us 31.86 us 792.10 us 20 READDIR 0.00 399.48 us 306.97 us 562.69 us 28 UNLINK 0.00 752.40 us 636.14 us 907.29 us 16 CREATE 0.00 196.62 us 33.27 us 2586.77 us 336 GETXATTR 0.00 1107.98 us 288.51 us 29692.53 us 80 MKNOD 0.00 1074.80 us 74.41 us 2121.03 us 126 READDIRP 0.00 3119.52 us 3.17 us 157121.44 us 52 OPENDIR 0.01 972.14 us 21.72 us 329342.21 us 635 FLUSH 0.03 2122.15 us 31.97 us 377538.16 us 732 STATFS 0.06 4478.89 us 66.09 us 521289.10 us 649 OPEN 0.10 10273.00 us 88.19 us 478524.77 us 472 XATTROP 0.16 6969.92 us 16.14 us 385156.98 us 1138 ENTRYLK 0.20 4635.40 us 64.29 us 1098319.92 us 2097 FSTAT 0.65 4098.07 us 46.85 us 919617.66 us 7797 LOOKUP 2.36 87465.33 us 34.75 us 1224052.07 us 1317 INODELK 4.37 13897.55 us 57.89 us 1984970.27 us 15336 READ 5.24 1265.46 us 16.22 us 1638678.32 us 202165 FINODELK 21.05 3370.28 us 144.44 us 2264130.49 us 304724 WRITE 31.00 6411.68 us 39.84 us 2190355.42 us 235969 FXATTROP 34.75 6107.95 us 60.26 us 2270252.44 us 277643 FSYNC 0.00 0.00 us 0.00 us 0.00 us 368 UPCALL Duration: 1132 seconds Data Read: 292367566 bytes Data Written: 7495339692 bytes Brick: ovirt2-storage.dgi:/gluster_bricks/vmstore/vmstore --------------------------------------------------------- Cumulative Stats: Block Size: 1b+ 4b+ 8b+ No. of Reads: 0 0 0 No. of Writes: 4802 2 64 Block Size: 64b+ 128b+ 256b+ No. of Reads: 0 138 828 No. of Writes: 2 32 131 Block Size: 512b+ 1024b+ 2048b+ No. of Reads: 3595 4590 6161 No. of Writes: 128976 99680 132413 Block Size: 4096b+ 8192b+ 16384b+ No. of Reads: 930031 128995 150468 No. of Writes: 48357551 23957030 3689474 Block Size: 32768b+ 65536b+ 131072b+ No. of Reads: 154039 71949 790010 No. of Writes: 1438859 1052045 3715427 Block Size: 262144b+ 524288b+ 1048576b+ No. of Reads: 9 11 40269 No. of Writes: 5 20 50757 %-latency Avg-latency Min-Latency Max-Latency No. of calls Fop --------- ----------- ----------- ----------- ------------ ---- 0.00 0.00 us 0.00 us 0.00 us 7629 FORGET 0.00 0.00 us 0.00 us 0.00 us 228577 RELEASE 0.00 0.00 us 0.00 us 0.00 us 41524 RELEASEDIR 0.00 374.22 us 219.35 us 574.87 us 96 LINK 0.00 1712.22 us 164.90 us 22337.79 us 41 DISCARD 0.00 2840.25 us 245.24 us 46839.63 us 26 RMDIR 0.00 3660.92 us 229.86 us 86252.56 us 35 FALLOCATE 0.00 876.48 us 297.53 us 16685.63 us 188 RENAME 0.00 6660.10 us 379.21 us 52962.79 us 34 MKDIR 0.00 957.48 us 80.36 us 218059.88 us 355 REMOVEXATTR 0.00 1234.85 us 76.50 us 322955.27 us 355 SETXATTR 0.00 2326.62 us 84.07 us 250041.25 us 196 STAT 0.00 9660.45 us 289.50 us 295106.01 us 87 TRUNCATE 0.00 486.10 us 24.12 us 869966.79 us 5260 LK 0.00 453.69 us 18.32 us 426653.18 us 8135 READDIR 0.00 1832.38 us 296.61 us 261299.81 us 5050 CREATE 0.00 386.77 us 1.31 us 1300836.12 us 41524 OPENDIR 0.00 712.06 us 29.85 us 1441115.02 us 34874 READDIRP 0.01 1469.51 us 231.67 us 440065.71 us 22845 MKNOD 0.01 44229.36 us 75.58 us 1803963.42 us 871 FTRUNCATE 0.01 84433.20 us 149.47 us 3614869.24 us 1001 SETATTR 0.02 418.11 us 13.39 us 3515000.81 us 243820 FLUSH 0.03 1108.47 us 14.77 us 1658743.41 us 130647 GETXATTR 0.03 562.86 us 26.74 us 5043949.33 us 297799 STATFS 0.03 845.50 us 48.16 us 1998938.03 us 223680 OPEN 0.05 2236.13 us 56.08 us 5295998.22 us 120682 XATTROP 0.16 890.82 us 43.51 us 3653292.88 us 1012585 FSTAT 0.34 2974.20 us 12.92 us 7782497.74 us 642555 ENTRYLK 0.47 135831.21 us 70.35 us 11033867.90 us 19800 UNLINK 0.57 954.05 us 21.50 us 4553393.38 us 3414605 LOOKUP 1.79 14461.54 us 13.45 us 32841452.98 us 702915 INODELK 5.14 8014.78 us 40.70 us 5439109.56 us 3644063 READ 5.37 443.04 us 11.53 us 32863652.53 us 68909131 FINODELK 22.31 1780.31 us 33.59 us 11318712.62 us 71235991 FXATTROP 22.83 1571.16 us 74.86 us 32615055.19 us 82622840 WRITE 40.84 2762.75 us 52.77 us 8859115.35 us 84039509 FSYNC 0.00 0.00 us 0.00 us 0.00 us 95492 UPCALL Duration: 484169 seconds Data Read: 167149718723 bytes Data Written: 1177141649872 bytes Interval 43 Stats: Block Size: 1b+ 256b+ 512b+ No. of Reads: 0 6 4 No. of Writes: 12 4 252 Block Size: 1024b+ 2048b+ 4096b+ No. of Reads: 0 0 5668 No. of Writes: 100 34 147357 Block Size: 8192b+ 16384b+ 32768b+ No. of Reads: 1178 783 1215 No. of Writes: 86014 17318 8687 Block Size: 65536b+ 131072b+ No. of Reads: 264 4109 No. of Writes: 8617 36317 %-latency Avg-latency Min-Latency Max-Latency No. of calls Fop --------- ----------- ----------- ----------- ------------ ---- 0.00 0.00 us 0.00 us 0.00 us 16 FORGET 0.00 0.00 us 0.00 us 0.00 us 665 RELEASE 0.00 0.00 us 0.00 us 0.00 us 52 RELEASEDIR 0.00 866.18 us 849.57 us 882.78 us 2 TRUNCATE 0.00 1016.14 us 868.35 us 1182.48 us 4 RENAME 0.00 455.65 us 41.13 us 1679.37 us 20 READDIR 0.00 373.33 us 173.54 us 538.40 us 28 UNLINK 0.00 722.01 us 635.91 us 853.71 us 16 CREATE 0.00 335.52 us 38.15 us 1381.97 us 54 READDIRP 0.00 39218.92 us 214.34 us 78223.50 us 2 STAT 0.00 1730.77 us 2.59 us 84964.69 us 52 OPENDIR 0.00 1304.96 us 393.64 us 29724.09 us 80 MKNOD 0.01 422.75 us 22.85 us 134336.60 us 635 FLUSH 0.01 699.21 us 37.54 us 137813.64 us 732 STATFS 0.01 468.63 us 23.71 us 260961.83 us 1141 ENTRYLK 0.04 2041.83 us 69.80 us 163743.98 us 649 OPEN 0.08 1253.65 us 72.52 us 290508.15 us 2354 FSTAT 0.09 6913.19 us 69.01 us 212479.24 us 472 XATTROP 0.13 3558.26 us 32.70 us 195896.10 us 1317 INODELK 0.13 9793.37 us 36.11 us 212755.58 us 499 GETXATTR 0.34 1615.15 us 55.42 us 711310.28 us 7797 LOOKUP 4.92 13025.92 us 59.83 us 1061585.06 us 13884 READ 5.26 955.95 us 16.81 us 1069148.49 us 202174 FINODELK 23.28 2809.44 us 137.21 us 1134076.13 us 304713 WRITE 26.46 4124.05 us 43.30 us 1142167.27 us 235954 FXATTROP 39.23 5195.62 us 65.47 us 1250469.35 us 277632 FSYNC 0.00 0.00 us 0.00 us 0.00 us 365 UPCALL Duration: 1132 seconds Data Read: 668951066 bytes Data Written: 7495356076 bytes

1 0

Unable to update self hosted Engine due to missing mirrors
by jonas＠fleckmail.de 22 Feb '22

22 Feb '22

Hi together, I already checked the other Threads here :) I know that there was an issue with old CentOS 8 repos. Currently Im trying so update our self hosted engine as always but I get the following error: Failed to download metadata for repo 'ovirt-4.4-centos-gluster8': Cannot prepare internal mirrorlist: No URLs in mirrorlist Is there any "official" advise what I have to change in my repo lists? I don't want to break something. Thank you very much :)

8 18

live storage migration & export speed
by Роман Черкалин 22 Feb '22

22 Feb '22

I'm even wondering who has what speed of export VM or live storage migration? I just don't understand how to increase it. ZFS replication goes 300-400MB/s with the same load. With regards, Roman Cherkalin

2 1

Broke my GlusterFS somehow
by Abe E 22 Feb '22

22 Feb '22

So upon changing my ovirt nodes (3Hyperconverged Gluster) as well as my engines hostname without a hitch I had an issue with 1 node and somehow I did something that broke its gluster and it wouldnt activate, So the gluster service wont start and after trying to open the node from webgui to see what its showing in its virtualization tab I was able to see that it allows me to run the hyperconverged wizard using the existing config. Due to this i lost the engine because well the 3rd node is just arbiter and node 2 complained about not having shared storage. This node is the one which I built ovirt gluster from so i assumed it would rebuild its gluster.. i accidentally clicked cleanup which got rid of my gluster brick mounts :)) then I tried to halt it and rebuild using existing configuration. Here is my issue though, am I able to rebuild my node? This is a new lab system so I believe i have all my vms still on my external HDDs. If I can restore this 1 node and have it rejoin the gluster then great, otherwise whats the best route using the webgui (I am remote at the moment) to just wipe all 3 nodes and start all over again and work it slowly? Is it simply deleting the partitions for the ovirt glusters on each node enough to let me rebuild ?

4 7

Install hosted engine using fcoe
by kyles＠aasteel.com 22 Feb '22

22 Feb '22

We're building a new cluster, but it utilizes fcoe for our storage. Is there a way to install the hosted engine using fcoe? I am unable to see our LUNs in the ovirt node currently as fcoe isn't enabled.

2 1

ansible ovirt_template: follow as replacement of nested_attributes
by Nathanaël Blanchet 21 Feb '22

21 Feb '22

Hello, I was familiar with the ansible fetch_nested/nested_attributes to get additionnal information from API. Recently it has been deprecated in order to be replaced by the "follow(s)" verb. I understand it will follow the links into the schema definition of the object like: <link href="/ovirt-engine/api/templates/e020281a-f5f0-4d98-91e3-4f3a9fc069b1/permissions" rel="permissions"/> <link href="/ovirt-engine/api/templates/e020281a-f5f0-4d98-91e3-4f3a9fc069b1/tags" rel="tags"/> <link href="/ovirt-engine/api/templates/e020281a-f5f0-4d98-91e3-4f3a9fc069b1/cdroms" rel="cdroms"/> <link href="/ovirt-engine/api/templates/e020281a-f5f0-4d98-91e3-4f3a9fc069b1/nics" rel="nics"/> <link href="/ovirt-engine/api/templates/e020281a-f5f0-4d98-91e3-4f3a9fc069b1/watchdogs" rel="watchdogs"/> <link href="/ovirt-engine/api/templates/e020281a-f5f0-4d98-91e3-4f3a9fc069b1/diskattachments" rel="diskattachments"/> <link href="/ovirt-engine/api/templates/e020281a-f5f0-4d98-91e3-4f3a9fc069b1/graphicsconsoles" rel="graphicsconsoles"/> but I can't get fetch nested (name of cluster) of : <cluster href="/ovirt-engine/api/clusters/bbeb38a4-79f0-11ec-86cb-00163e6d6a50" id="bbeb38a4-79f0-11ec-86cb-00163e6d6a50"/> I was used to do this query with: fetch_nested: yes nested_attribute: - name Is it possible to do the same with "follow(s)"? -- Nathanaël Blanchet Supervision réseau SIRE 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

1 1

VMs losing network interfaces
by Jonathan Baecker 21 Feb '22

21 Feb '22

Hello everybody, I have here a strange behavior: We have a 3 node self hosted cluster with around 20 VMs running on it. Since longer I had the problem with one VM that after some days it lose the network interface. But because this VM was only for testing I was to lazy to dive more in, to figure out what is happen. Now I have a second VM, with the same problem and this VM is more important. Both VMs running debian 10 and use cifs mounts, so maybe that is related? Have some one of you seeing this behavior? And can give me a hint, how I can fix this? At the moment I can't provide a log file, because I didn't know the exact time, when this was happen. And I also don't know, if the problem comes from ovirt or from the operating system inside the VMs. Have a nice day! Jonathan

3 2

Re: oVirt alternatives
by Nathanaël Blanchet 21 Feb '22

21 Feb '22

2 1

oVirt alternatives
by Thomas Hoberg 21 Feb '22

21 Feb '22

There is unfortunately no formal announcement on the fate of oVirt, but with RHGS and RHV having a known end-of-life, oVirt may well shut down in Q2. So it's time to hunt for an alternative for those of us to came to oVirt because they had already rejected vSAN or Nutanix. Let's post what we find here in this thread.

13 21

unable to download and install ldap package to integrate with AD. oVirt Engine version - ovirt-engine-4.4.9.5-1
by umakanta.samantaray＠broadcom.com 21 Feb '22

21 Feb '22

When trying to installing the package ovirt-engine-extension-aaa-ldap-setup, receiving below error message, can you please help # sudo yum install ovirt-engine-extension-aaa-ldap-setup Last metadata expiration check: 0:08:27 ago on Monday 21 February 2022 11:41:51 AM IST. Error: Problem: cannot install the best candidate for the job - nothing provides python3-ldap needed by ovirt-engine-extension-aaa-ldap-setup-1.4.5-1.el8.noarch (try to add '--skip-broken' to skip uninstallable packages or '--nobest' to use not only best candidate packages) # sudo yum install ovirt-engine-extension-aaa-ldap-setup --nobest Last metadata expiration check: 0:16:27 ago on Monday 21 February 2022 11:41:51 AM IST. Error: Problem: conflicting requests - nothing provides python3-ldap needed by ovirt-engine-extension-aaa-ldap-setup-1.4.0-1.el8.noarch - nothing provides python3-ldap needed by ovirt-engine-extension-aaa-ldap-setup-1.4.1-1.el8.noarch - nothing provides python3-ldap needed by ovirt-engine-extension-aaa-ldap-setup-1.4.2-1.el8.noarch - nothing provides python3-ldap needed by ovirt-engine-extension-aaa-ldap-setup-1.4.3-1.el8.noarch - nothing provides python3-ldap needed by ovirt-engine-extension-aaa-ldap-setup-1.4.4-1.el8.noarch - nothing provides python3-ldap needed by ovirt-engine-extension-aaa-ldap-setup-1.4.5-1.el8.noarch (try to add '--skip-broken' to skip uninstallable packages) # sudo yum install ovirt-engine-extension-aaa-ldap-setup --skip-broken Last metadata expiration check: 0:16:58 ago on Monday 21 February 2022 11:41:51 AM IST. Dependencies resolved. Nothing to do. Complete!

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Re: ovirtmgmt VLAN and IP Change
by Abe E 20 Feb '22

20 Feb '22

Your method worked ! I additionally had to run the engine rename service script to change the hostname of the engine as well. My only issue now is after readding all the nodes with new hostnames my main host node 1 will not allow me to remove and re-add as a new hostname as there is a gluster volume on it. It will not let me remove to readd because theres a gluster on the volume, have you run into this?

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Re: ovirtmgmt VLAN and IP Change
by Abe E 19 Feb '22

19 Feb '22

How did you do this if the host had a gluster volume on it though? Mine does not let me remove due to that.

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ovirtmgmt VLAN and IP Change
by Abe E 19 Feb '22

19 Feb '22

Hello All, So due to some issues with provisioning new networks in our lab, I have to use a different VLAN in for my ovirt cluster. Cluster -> 3 Hosts (Hyperconverged) What I want to do is essentially change the Ovirtmgmt interface to another vlan but also change the IP Schemes, I wont be needing to change the storage network vlans. I am just wondering how this is done safely. Can I through the engine, put the host 1 by 1 into maint mode and manually adjust the IPs and apply and reconfigure the switch port? What about the IP that the engine has set or would I change that manually through console once I change the ovirtmgmt vlan on all the nodes?

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Random reboots
by Pablo Olivera 17 Feb '22

17 Feb '22

Hi community, We're dealing with an issue as we occasionally have random reboots on any of our hosts. We're using ovirt 4.4.3 in production with about 60 VM distributed over 5 hosts. We've a virtualized engine and a DRBD storage mounted by NFS. The infrastructure is interconnected by a Cisco 9000 switch. The last random reboot was yesterday February 14th at 03:03 PM (in the log it appears as: 15:03 due to our time configuration) of the host: 'nodo1'. At the moment of the reboot we detected in the log of the switch a link-down in the port where the host is connected. I attach log of the engine and host 'nodo1' in case you can help us to find the cause of these random reboots. Thanks in advance. Pablo.

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Re: Enable Power Management Ovirt 4.3
by emiliano.pozzessere＠satservizi.eu 17 Feb '22

17 Feb '22

Thanks. Best regards

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Re: Enable Power Management Ovirt 4.3
by emiliano.pozzessere＠satservizi.eu 17 Feb '22

17 Feb '22

Hi Angus, is kdump integration recommended to enable it?

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Re: Enable Power Management Ovirt 4.3
by emiliano.pozzessere＠satservizi.eu 17 Feb '22

17 Feb '22

Ok thanks for support :-) Best regards

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Re: Enable Power Management Ovirt 4.3
by emiliano.pozzessere＠satservizi.eu 17 Feb '22

17 Feb '22

Thanks for reply Angus, IPMI/DCMI over LAN is enable On ILO4 I created account for Ovirt with full credential and now it's works with ILO4 The ports and protocol are enable, but Ovirt works only ip_ssh and ILO4, no ipmilan. Do you know which keys I have to set in the option section of the agent fence on Ovirt? Thanks

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Cannot add Virtual Disk. Disk configuration (RAW Sparse backup-None) is incompatible with the storage domain type.
by nicolas＠devels.es 17 Feb '22

17 Feb '22

Hi, We're using oVirt 4.4.8.6. We make an intensive use of the VM portal because we've hundreds of students creating their own VMs. Recently, one of the professors reported that they are encountering an error when adding a disk to a newly created VM. They are creating ISO based VMs (CentOS-8-Stream in this case), everything goes smoothly but when adding a thin-provisioned disk, this error shows up: 2022-02-17 09:56:28,073Z INFO [org.ovirt.engine.core.bll.storage.disk.AddDiskCommand] (default task-39078) [0332e7b6-80b1-48e9-b849-80698f2ce7ab] Lock Acquired to object 'EngineLock:{exclusiveLocks='[e4a02ab9-31e4-4e8c-8999-91700263ff08=VM_DISK_BOOT]', sharedLocks='[e4a02ab9-31e4-4e8c-8999-91700263ff08=VM]'}' 2022-02-17 09:56:28,446Z WARN [org.ovirt.engine.core.bll.storage.disk.AddDiskCommand] (default task-39078) [0332e7b6-80b1-48e9-b849-80698f2ce7ab] Validation of action 'AddDisk' failed for user aluX@domain-authz. Reasons: VAR__ACTION__ADD,VAR__TYPE__DISK,ACTION_TYPE_FAILED_DISK_CONFIGURATION_NOT_SUPPORTED,$volumeFormat RAW,$volumeType Sparse,$backup None 2022-02-17 09:56:28,446Z INFO [org.ovirt.engine.core.bll.storage.disk.AddDiskCommand] (default task-39078) [0332e7b6-80b1-48e9-b849-80698f2ce7ab] Lock freed to object 'EngineLock:{exclusiveLocks='[e4a02ab9-31e4-4e8c-8999-91700263ff08=VM_DISK_BOOT]', sharedLocks='[e4a02ab9-31e4-4e8c-8999-91700263ff08=VM]'}' 2022-02-17 09:56:28,504Z ERROR [org.ovirt.engine.api.restapi.resource.AbstractBackendResource] (default task-39078) [] Operation Failed: [Cannot add Virtual Disk. Disk configuration (RAW Sparse backup-None) is incompatible with the storage domain type.] However, changing the provisioning to thick does work and the disk can be added. I found [1] which talks about this but I'm not sure if it's the same issue, nor it has a solution yet. Is this a known bug? Does it have any workaround beyond creating thick-provisioned disks? Thanks. Nicolás [1]: https://access.redhat.com/solutions/6022811

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Enable Power Management Ovirt 4.3
by emiliano.pozzessere＠satservizi.eu 17 Feb '22

17 Feb '22

Hi guys, I would like enable Power Management on Ovirt 4.3. My Hosts are HP with ILO4, I configured on ILO4 account for Ovirt. On the host enable Power Management, flag on Kdump Integration and I added the fence agent, I put the user and password and set up ILO4 but the test fails, if I put ilo_ssh it works. But I don't know which keys I have to enter and with which values (if necessary) Can anyone explain to me? Thanks

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Enable Power Management Ovirt 4.3
by emiliano.pozzessere＠satservizi.eu 17 Feb '22

17 Feb '22

Good morning, I need a clarification on enabling Power Management. I have an Ovirt 4.3 and some hosts with ILO4, if I enable power management on ILO4 the test fails if instead I enable it on ilo_ssh it works, but after I have enabled it I don't know which keys I have to set, can you help me? Thanks

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Centos 8.3 ovirt4.4.5 to Centos Stream 8.6 ovirt 4.4.10 migiration success
by Ismet Sonmez 16 Feb '22

16 Feb '22

Hello everyone We did a nice update over the weekend. Everything is working fine. Thank you to the whole team for developing such a project. Best regards

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