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Adding existing kvm hosts
by Konstantin Raskoshnyi 12 Apr '17

12 Apr '17

Hi guys, We're never had mgmt for our kvm machines I installed oVirt 4.1 on CentOS73 and trying to add existing kvm hosts but oVirt fails with this error 2017-04-12 05:08:46,430Z ERROR [org.ovirt.engine.core.uutils.ssh.SSHDialog] (org.ovirt.thread.pool-7-thread-21) [4a1d5f35] Exception: java.io.IOException: Command returned failure code 1 during SSH session 'root@tank3' I don't experience any problems connecting to virtank3 under root. 2017-04-12 05:08:46,445Z ERROR [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (org.ovirt.thread.pool-7-thread-21) [4a1d5f35] EVENT_ID: VDS_INSTALL_IN_PROGRESS_ERROR(511), Correlation ID: 4a1d5f35, Call Stack: null, Custom Event ID: -1, Message: Failed to install Host tank3. Command returned failure code 1 during SSH session 'root@tank3'. 2017-04-12 05:08:46,445Z ERROR [org.ovirt.engine.core.bll.hostdeploy.VdsDeployBase] (org.ovirt.thread.pool-7-thread-21) [4a1d5f35] Error during host tank3 install, prefering first exception: Unexpected connection termination 2017-04-12 05:08:46,445Z ERROR [org.ovirt.engine.core.bll.hostdeploy.InstallVdsInternalCommand] (org.ovirt.thread.pool-7-thread-21) [4a1d5f35] Host installation failed for host 'cec720ed-460a-48aa-a9fc-2262b6da5a83', 'tank3': Unexpected connection termination 2017-04-12 05:08:46,446Z INFO [org.ovirt.engine.core.vdsbroker.SetVdsStatusVDSCommand] (org.ovirt.thread.pool-7-thread-21) [4a1d5f35] START, SetVdsStatusVDSCommand(HostName = tank3, SetVdsStatusVDSCommandParameters:{runAsync='true', hostId='cec720ed-460a-48aa-a9fc-2262b6da5a83', status='InstallFailed', nonOperationalReason='NONE', stopSpmFailureLogged='false', maintenanceReason='null'}), log id: 4bbc52f9 2017-04-12 05:08:46,449Z INFO [org.ovirt.engine.core.vdsbroker.SetVdsStatusVDSCommand] (org.ovirt.thread.pool-7-thread-21) [4a1d5f35] FINISH, SetVdsStatusVDSCommand, log id: 4bbc52f9 2017-04-12 05:08:46,457Z ERROR [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (org.ovirt.thread.pool-7-thread-21) [4a1d5f35] EVENT_ID: VDS_INSTALL_FAILED(505), Correlation ID: 4a1d5f35, Job ID: 8af22af5-72a5-4ec4-b216-4e26ceaa48d6, Call Stack: null, Custom Event ID: -1, Message: Host tank3 installation failed. Unexpected connection termination. 2017-04-12 05:08:46,496Z INFO [org.ovirt.engine.core.bll.hostdeploy.InstallVdsInternalCommand] (org.ovirt.thread.pool-7-thread-21) [4a1d5f35] Lock freed to object 'EngineLock:{exclusiveLocks='[cec720ed-460a-48aa-a9fc-2262b6da5a83=<VDS, ACTION_TYPE_FAILED_OBJECT_LOCKED>]', sharedLocks='null'}' 2017-04-12 05:09:02,742Z INFO [org.ovirt.engine.core.bll.RemoveVdsCommand] (default task-48) [13050988-bf00-4391-9862-a8ed8ade34dd] Lock Acquired to object 'EngineLock:{exclusiveLocks='[cec720ed-460a-48aa-a9fc-2262b6da5a83=<VDS, ACTION_TYPE_FAILED_OBJECT_LOCKED>]', sharedLocks='null'}' 2017-04-12 05:09:02,750Z INFO [org.ovirt.engine.core.bll.RemoveVdsCommand] (org.ovirt.thread.pool-7-thread-22) [13050988-bf00-4391-9862-a8ed8ade34dd] Running command: RemoveVdsCommand internal: false. Entities affected : ID: cec720ed-460a-48aa-a9fc-2262b6da5a83 Type: VDSAction group DELETE_HOST with role type ADMIN 2017-04-12 05:09:02,822Z INFO [org.ovirt.engine.core.vdsbroker.RemoveVdsVDSCommand] (org.ovirt.thread.pool-7-thread-22) [13050988-bf00-4391-9862-a8ed8ade34dd] START, RemoveVdsVDSCommand( RemoveVdsVDSCommandParameters:{runAsync='true', hostId='cec720ed-460a-48aa-a9fc-2262b6da5a83'}), log id: 26e68c12 2017-04-12 05:09:02,822Z INFO [org.ovirt.engine.core.vdsbroker.VdsManager] (org.ovirt.thread.pool-7-thread-22) [13050988-bf00-4391-9862-a8ed8ade34dd] vdsManager::disposing 2017-04-12 05:09:02,822Z INFO [org.ovirt.engine.core.vdsbroker.RemoveVdsVDSCommand] (org.ovirt.thread.pool-7-thread-22) [13050988-bf00-4391-9862-a8ed8ade34dd] FINISH, RemoveVdsVDSCommand, log id: 26e68c12 2017-04-12 05:09:02,824Z WARN [org.ovirt.vdsm.jsonrpc.client.internal.ResponseWorker] (ResponseWorker) [] Exception thrown during message processing 2017-04-12 05:09:02,848Z INFO [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (org.ovirt.thread.pool-7-thread-22) [13050988-bf00-4391-9862-a8ed8ade34dd] EVENT_ID: USER_REMOVE_VDS(44), Correlation ID: 13050988-bf00-4391-9862-a8ed8ade34dd, Call Stack: null, Custom Event ID: -1, Message: Host tank3 was removed by admin@internal-authz. 2017-04-12 05:09:02,848Z INFO [org.ovirt.engine.core.bll.RemoveVdsCommand] (org.ovirt.thread.pool-7-thread-22) [13050988-bf00-4391-9862-a8ed8ade34dd] Lock freed to object 'EngineLock:{exclusiveLocks='[cec720ed-460a-48aa-a9fc-2262b6da5a83=<VDS, ACTION_TYPE_FAILED_OBJECT_LOCKED>]', sharedLocks='null'}' 2017-04-12 05:10:56,139Z INFO [org.ovirt.engine.core.bll.storage.ovfstore.OvfDataUpdater] (DefaultQuartzScheduler8) [] Attempting to update VMs/Templates Ovf. Package vdsm-tool installed. Any thoughts? Thanks

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Re: [ovirt-users] More 4.1 Networking Questions
by Charles Tassell 11 Apr '17

11 Apr '17

And bingo! I totally spaced on the fact that the MAC pool would be the same on the two clusters. I changed the pool range (Configure->MAC Address Pools for anyone interested) on the 4.1 cluster and things are looking good again. Thank you, this was driving me nuts! On 2017-04-11 05:22 AM, users-request(a)ovirt.org wrote: > Message: 1 > Date: Mon, 10 Apr 2017 21:07:44 -0400 > From: Jeff Bailey <bailey(a)cs.kent.edu> > To: users(a)ovirt.org > Subject: Re: [ovirt-users] More 4.1 Networking Questions > Message-ID: <31d1821c-9172-5a62-4f7d-b43fa4608025(a)cs.kent.edu> > Content-Type: text/plain; charset=windows-1252; format=flowed > > On 4/10/2017 6:59 AM, Charles Tassell wrote: > >> Ah, spoke to soon. 30 seconds later the network went down with IPv6 >> disabled. So it does appear to be a host forwarding problem, not a VM >> problem. I have an oVirt 4.0 cluster on the same network that doesn't >> have these issues, so it must be a configuration issue somewhere. >> Here is a dump of my ip config on the host: >> > The same L2 network? Using the same range of MAC addresses? [snip]

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Hosted engine setup shooting dirty pool
by Jamie Lawrence 11 Apr '17

11 Apr '17

Or at least, refusing to mount a dirty pool. I’m having trouble getting the hosted engine installed. I have 4.1 set up, configured and functional, currently wired up with two VM hosts and three Gluster hosts. It is configured with a (temporary) NFS data storage domain, with the end-goal being two data domains on Gluster; one for the hosted engine, one for other VMs. The issue is that `hosted-engine` sees any gluster volumes offered as dirty. (I have been creating them via the command line right before attempting the hosted-engine migration; there is nothing in them at that stage.) I *think* what is happening is that ovirt-engine notices a newly created volume and has its way with the volume (visible in the GUI; the volume appears in the list), and the hosted-engine installer becomes upset about that. What I don’t know is what to do about that. Relevant log lines below. The installer almost sounds like it is asking me to remove the UUID-directory and whatnot, but I’m pretty sure that’s just going to leave me with two problems instead of fixing the first one. I’ve considered attempting to wire this together in the DB, which also seems like a great way to break things. I’ve even thought of using a Gluster cluster that Ovirt knows nothing about, mainly as an experiment to see if it would even work, but decided it doesn’t especially matter, as architecturally that would not work for production in our environment and I just need to get this up. So, can anyone spare a clue as to what is going wrong, and what to do about that? -j - - - - ovirt-hosted-engine-setup.log - - - - 2017-04-11 16:14:39 DEBUG otopi.plugins.gr_he_setup.storage.storage storage._storageServerConnection:408 connectStorageServer 2017-04-11 16:14:40 DEBUG otopi.plugins.gr_he_setup.storage.storage storage._storageServerConnection:475 {'status': {'message': 'Done', 'code': 0}, 'items': [{u'status': 0, u'id': u'890e82cf-5570-4507-a9bc-c610584dea6e'}]} 2017-04-11 16:14:40 DEBUG otopi.plugins.gr_he_setup.storage.storage storage._storageServerConnection:502 {'status': {'message': 'Done', 'code': 0}, 'items': [{u'status': 0, u'id': u'cd1a1bb6-e607-4e35-b815-1fd88b84fe14'}]} 2017-04-11 16:14:40 DEBUG otopi.plugins.gr_he_setup.storage.storage storage._check_existing_pools:794 _check_existing_pools 2017-04-11 16:14:40 DEBUG otopi.plugins.gr_he_setup.storage.storage storage._check_existing_pools:795 getConnectedStoragePoolsList 2017-04-11 16:14:40 DEBUG otopi.plugins.gr_he_setup.storage.storage storage._check_existing_pools:797 {'status': {'message': 'Done', 'code': 0}} 2017-04-11 16:14:40 INFO otopi.plugins.gr_he_setup.storage.storage storage._misc:956 Creating Storage Domain 2017-04-11 16:14:40 DEBUG otopi.plugins.gr_he_setup.storage.storage storage._createStorageDomain:513 createStorageDomain 2017-04-11 16:14:40 DEBUG otopi.plugins.gr_he_setup.storage.storage storage._createStorageDomain:547 {'status': {'message': 'Done', 'code': 0}} 2017-04-11 16:14:40 DEBUG otopi.plugins.gr_he_setup.storage.storage storage._createStorageDomain:549 {'status': {'message': 'Done', 'code': 0}, u'mdasize': 0, u'mdathreshold': True, u'mdavalid': True, u'diskfree': u'321929216000', u'disktotal': u'321965260800', u'mdafree': 0} 2017-04-11 16:14:40 INFO otopi.plugins.gr_he_setup.storage.storage storage._misc:959 Creating Storage Pool 2017-04-11 16:14:40 DEBUG otopi.plugins.gr_he_setup.storage.storage storage._createFakeStorageDomain:553 createFakeStorageDomain 2017-04-11 16:14:41 DEBUG otopi.plugins.gr_he_setup.storage.storage storage._createFakeStorageDomain:570 {'status': {'message': 'Done', 'code': 0}} 2017-04-11 16:14:41 DEBUG otopi.plugins.gr_he_setup.storage.storage storage._createFakeStorageDomain:572 {'status': {'message': 'Done', 'code': 0}, u'mdasize': 0, u'mdathreshold': True, u'mdavalid': True, u'diskfree': u'1933930496', u'disktotal': u'2046640128', u'mdafree': 0} 2017-04-11 16:14:41 DEBUG otopi.plugins.gr_he_setup.storage.storage storage._createStoragePool:587 createStoragePool 2017-04-11 16:14:41 DEBUG otopi.plugins.gr_he_setup.storage.storage storage._createStoragePool:627 createStoragePool(args=[storagepoolID=9e399f0c-7c4b-4131-be79-922dda038383, name=hosted_datacenter, masterSdUUID=9a5c302b-2a18-4c7e-b75d-29088299988c, masterVersion=1, domainList=['9a5c302b-2a18-4c7e-b75d-29088299988c', 'f26efe61-a2e1-4a85-a212-269d0a047e07'], lockRenewalIntervalSec=None, leaseTimeSec=None, ioOpTimeoutSec=None, leaseRetries=None]) 2017-04-11 16:15:29 DEBUG otopi.plugins.gr_he_setup.storage.storage storage._createStoragePool:640 {'status': {'message': 'Done', 'code': 0}} 2017-04-11 16:15:29 INFO otopi.plugins.gr_he_setup.storage.storage storage._misc:962 Connecting Storage Pool 2017-04-11 16:15:29 DEBUG otopi.plugins.gr_he_setup.storage.storage storage._storagePoolConnection:717 connectStoragePool 2017-04-11 16:15:29 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-hosted-engine-setup/scripts/../plugins/gr-he-setup/storage/storage.py", line 963, in _misc self._storagePoolConnection() File "/usr/share/ovirt-hosted-engine-setup/scripts/../plugins/gr-he-setup/storage/storage.py", line 725, in _storagePoolConnection message=status['status']['message'], RuntimeError: Dirty Storage Domain: Cannot connect pool, already connected to another pool: ('ef5e4496-3095-40a8-89da-6847db67a4b9',) Please clean the storage device and try again 2017-04-11 16:15:29 ERROR otopi.context context._executeMethod:151 Failed to execute stage 'Misc configuration': Dirty Storage Domain: Cannot connect pool, already connected to another pool: ('ef5e4496-3095-40a8-89da-6847db67a4b9',) Please clean the storage device and try again 2017-04-11 16:15:29 DEBUG otopi.transaction transaction.abort:119 aborting 'Yum Transaction' 2017-04-11 16:15:29 INFO otopi.plugins.otopi.packagers.yumpackager yumpackager.info:80 Yum Performing yum transaction rollback Loaded plugins: fastestmirror 2017-04-11 16:15:29 DEBUG otopi.transaction transaction.abort:119 aborting 'File transaction for '/etc/ovirt-hosted-engine/firewalld/hosted-console.xml'' 2017-04-11 16:15:29 DEBUG otopi.transaction transaction.abort:119 aborting 'File transaction for '/etc/ovirt-hosted-engine/firewalld/hosted-cockpit.xml'' 2017-04-11 16:15:29 DEBUG otopi.transaction transaction.abort:119 aborting 'File transaction for '/etc/ovirt-hosted-engine/iptables.example'' 2017-04-11 16:15:29 DEBUG otopi.context context.dumpEnvironment:760 ENVIRONMENT DUMP - BEGIN

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Resize iSCSI lun f storage domain
by Gianluca Cecchi 11 Apr '17

11 Apr '17

Hello, my iSCSI storage domain in 4.1.1 is composed by 1 lun of size 1TB and there are two hosts accessing it. I have to extend this LUN to 4Tb. What is supposed to be done after having completed the resize operation at storage array level? I read here the workflow: http://www.ovirt.org/develop/release-management/features/storage/lun-resize/ Does this imply that I have to do nothing at host side? Normally inside a physical server connecting to iSCSI volumes I run the command "iscsiadm .... --rescan" and this one below is all my workflow (on CentOS 5.9, quite similar in CentOS 6.x, except the multipath refresh). Is it oVirt itself that takes in charge the iscsiadm --rescan command? BTW: the "edit domain" screenshot should become a "manage domain" screenshot now Thanks, Gianluca I want to extend my filesystem from 250Gb to 600Gb - current layout of FS, PV, multipath device [g.cecchi@dbatest ~]$ df -h Filesystem Size Used Avail Use% Mounted on ... /dev/mapper/VG_ORASAVE-LV_ORASAVE 247G 66G 178G 28% /orasave [root@dbatest ~]# pvs /dev/mpath/mpsave PV VG Fmt Attr PSize PFree /dev/mpath/mpsave VG_ORASAVE lvm2 a-- 250.00G 0 [root@dbatest ~]# multipath -l mpsave mpsave (36090a0585094695aed0f95af0601f066) dm-4 EQLOGIC,100E-00 [size=250G][features=1 queue_if_no_path][hwhandler=0][rw] \_ round-robin 0 [prio=0][active] \_ 12:0:0:0 sdc 8:32 [active][undef] \_ 11:0:0:0 sdd 8:48 [active][undef] - current configured iSCSI ifaces (ieth0 using eth0 and ieth1 using eth1) [root@dbatest ~]# iscsiadm -m node -P 1 ... Target: iqn.2001-05.com.equallogic:0-8a0906-5a6994505-66f00106af950fed-dbatest-save Portal: 10.10.100.20:3260,1 Iface Name: ieth0 Iface Name: ieth1 - rescan of iSCSI [root@dbatest ~]# for i in 0 1 > do > iscsiadm -m node --targetname=iqn.2001-05.com.equallogic:0-8a0906-5a6994505-66f00106af950fed-dbatest-save -I ieth$i --rescan > done Rescanning session [sid: 3, target: iqn.2001-05.com.equallogic:0-8a0906-5a6994505-66f00106af950fed-dbatest-save, portal: 10.10.100.20,3260] Rescanning session [sid: 4, target: iqn.2001-05.com.equallogic:0-8a0906-5a6994505-66f00106af950fed-dbatest-save, portal: 10.10.100.20,3260] In messages I get: Apr 24 16:07:17 dbatest kernel: SCSI device sdd: 1258291200 512-byte hdwr sectors (644245 MB) Apr 24 16:07:17 dbatest kernel: sdd: Write Protect is off Apr 24 16:07:17 dbatest kernel: SCSI device sdd: drive cache: write through Apr 24 16:07:17 dbatest kernel: sdd: detected capacity change from 268440698880 to 644245094400 Apr 24 16:07:17 dbatest kernel: SCSI device sdc: 1258291200 512-byte hdwr sectors (644245 MB) Apr 24 16:07:17 dbatest kernel: sdc: Write Protect is off Apr 24 16:07:17 dbatest kernel: SCSI device sdc: drive cache: write through Apr 24 16:07:17 dbatest kernel: sdc: detected capacity change from 268440698880 to 644245094400 - Dry run of multupath refresh [root@dbatest ~]# multipath -v2 -d : mpsave (36090a0585094695aed0f95af0601f066) EQLOGIC,100E-00 [size=600G][features=1 queue_if_no_path][hwhandler=0][n/a] \_ round-robin 0 [prio=1][undef] \_ 12:0:0:0 sdc 8:32 [active][ready] \_ 11:0:0:0 sdd 8:48 [active][ready] - execute the refresh of multipath [root@dbatest ~]# multipath -v2 : mpsave (36090a0585094695aed0f95af0601f066) EQLOGIC,100E-00 [size=600G][features=1 queue_if_no_path][hwhandler=0][n/a] \_ round-robin 0 [prio=1][undef] \_ 12:0:0:0 sdc 8:32 [active][ready] \_ 11:0:0:0 sdd 8:48 [active][ready] - verify new size: [root@dbatest ~]# multipath -l mpsave mpsave (36090a0585094695aed0f95af0601f066) dm-4 EQLOGIC,100E-00 [size=600G][features=1 queue_if_no_path][hwhandler=0][rw] \_ round-robin 0 [prio=0][active] \_ 12:0:0:0 sdc 8:32 [active][undef] \_ 11:0:0:0 sdd 8:48 [active][undef] - pvresize [root@dbatest ~]# pvresize /dev/mapper/mpsave Physical volume "/dev/mpath/mpsave" changed 1 physical volume(s) resized / 0 physical volume(s) not resized - verify the newly added 350Gb size in PV and in VG [root@dbatest ~]# pvs /dev/mpath/mpsave PV VG Fmt Attr PSize PFree /dev/mpath/mpsave VG_ORASAVE lvm2 a-- 600.00G 349.99G [root@dbatest ~]# vgs VG_ORASAVE VG #PV #LV #SN Attr VSize VFree VG_ORASAVE 1 1 0 wz--n- 600.00G 349.99G - lvextend of the existing LV [root@dbatest ~]# lvextend -l+100%FREE /dev/VG_ORASAVE/LV_ORASAVE Extending logical volume LV_ORASAVE to 600.00 GB Logical volume LV_ORASAVE successfully resized [root@dbatest ~]# lvs VG_ORASAVE/LV_ORASAVE LV VG Attr LSize Origin Snap% Move Log Copy% Convert LV_ORASAVE VG_ORASAVE -wi-ao 600.00G - resize FS [root@dbatest ~]# resize2fs /dev/VG_ORASAVE/LV_ORASAVE resize2fs 1.39 (29-May-2006) Filesystem at /dev/VG_ORASAVE/LV_ORASAVE is mounted on /orasave; on-line resizing required Performing an on-line resize of /dev/VG_ORASAVE/LV_ORASAVE to 157285376 (4k) blocks. The filesystem on /dev/VG_ORASAVE/LV_ORASAVE is now 157285376 blocks long. [root@dbatest ~]# df -h /orasave Filesystem Size Used Avail Use% Mounted on /dev/mapper/VG_ORASAVE-LV_ORASAVE 591G 66G 519G 12% /orasave

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ovirt node 4.1.1.1
by Julius Bekontaktis 11 Apr '17

11 Apr '17

Hey guys, Yesterday I've upgraded my Ovirt Node 4.1.0 to 4.1.1.1 version. Everything looks fine except Network configuration part is missing. If I enter manually in url (/network) like in the older version - I get Not Found error. I've roll backed to previous version - network configuration part is OK, reverted back to new one - no networking configuration. How should I configure networks? In terminal, the old way ? Thanks for any comments. Maybe I am missing something. Regards Julius

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EMC Unity 300
by Colin Coe 11 Apr '17

11 Apr '17

Hi all We are contemplating moving away from our current iSCSI SAN to Dell/EMC Unity 300. I've seen one thread where the 300F is problematic and no resolution is posted. Is anyone else using tis with RHEV/oVirt? Any war stories? Thanks CC

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Desktop virtualization and thin clients
by Giulio Casella 11 Apr '17

11 Apr '17

Hi, I'm evaluating some thin client to connect to ovirt VMs, used as desktop workstations. I really don't care about native client support, I distribute via PXE a custom linux OS launching remote viewer. I'd like to have good multimedia performance, at a reasonable price. Googling a little, I focused on a couple of vendor: https://www.igel.com and https://www.10zig.com/. Anyone has already tested those vendor products? which model? which is the (approx.) price? Obviously any hint on other vendors are welcome. The scenario is composed of about 1500 VMs, running on ovirt (RHV to say the truth), distributed over 3 datacenters, currently accessed using old (5-7 years) PC, that I'm planning to renew. TIA, Giulio

2 2

Python-SDK4: How to list user permissions?
by nicolas＠devels.es 11 Apr '17

11 Apr '17

Hi, I'm trying to get a user's list of permissions, i.e., list all permissions a user have on VMs and VmPools. In SDK3 that was easy as I could run (being 'u' a User object): for perm in u.permissions.list(): vm = perm.get_vm() vmpool = perm.get_vmpool() if vm or vmpool: print "User has some permissions!" In SDK4 I cannot reproduce the same logic. u.permissions returns an empty list ([]). What I have so far is something like this: for u in users_serv.list(): if u.user_name == 'admin@internal': continue vms_service = sys_serv.vms_service() for vm in vms_service.list(): vms = vms_service.vm_service(id=vm.id) ps = vms.permissions_service() for perm in ps.list(): perm_service = ps.permission_service(id=perm.id) getperm = perm_service.get() if getperm.user.user_name == u.user_name: print "Permission for %s" % (u.user_name) if getperm.vm: print "VM: %s" % (getperm.vm.id) if getperm.vm_pool: print "VmPool: %s" % (getperm.vm_pool.id) However, this seems a bit overkill. We have nearly 850 VMs and for a single user this takes about 25 minutes to run. Additionally, it doesn't seem to return any permission, although I know this user has some permissions over 2 VMs (not sure where is it messed up). I also tried using the system_service.permissions_service() but it seems to return only the global permissions. Is there an easier way to do this? Thanks!

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More 4.1 Networking Questions
by Charles Tassell 10 Apr '17

10 Apr '17

Hi Everyone, Okay, I'm again having problems with getting basic networking setup with oVirt 4.1 Here is my situation. I have two servers I want to use to create an oVirt cluster, with two different networks. My "public" network is a 1G link on device em1 connected to my Internet feed, and my "storage" network is a 10G link connected on device p5p1 to my file server. Since I need to connect to my storage network in order to do the install, I selected p5p1 has the ovirtmgmt interface when installing the hosted engine. That worked fine, I got everything installed, so I used some ssh-proxy magic to connect to the web console and completed the install (setup a Storage domain and create a new network vmNet for VM networking and added em1 to it.) The problem was that when I added a second network device to the HostedEngine VM (so that I can connect to it from my public network) it would intermittently go down. I did some digging and found some IPV6 errors in the dmesg (IPv6: eth1: IPv6 duplicate address 2001:410:e000:902:21a:4aff:fe16:151 detected!) so I disabled IPv6 on both eth0 and eth1 in the HostedEngine and rebooted it. The problem is that when I restarted the VM, the eth1 device was missing. So, my question is: Can I add a second NIC to the HostedEngine VM and make it stick, or will it be deleted whenever the engine VM is restarted? Is there a better way to do what I'm trying to do, ie, should I setup ovirtmgmt on the public em1 interface, and then create the "storage" network after the fact for connecting to the datastores and such. Is that even possible, or required? I was thinking that it would be better for migrations and other management functions to happen on the faster 10G network, but if the HostedEngine doesn't need to be able to connect to the storage network maybe it's not worth the effort? Eventually I want to setup LACP on the storage network, but I had to wipe the servers and reinstall from scratch the last time I tried to set that up. I was thinking that it was because I setup the bonding before installing oVirt, so I didn't do that this time. Here are my /etc/sysconfig/network-scripts/ifcfg-* files in case I did something wrong there (I'm more familiar with Debian/Ubuntu network setup than CentOS) ifcfg-eth0: (ovirtmgmt aka storage) ---------------- BROADCAST=192.168.130.255 NETMASK=255.255.255.0 BOOTPROTO=static DEVICE=eth0 IPADDR=192.168.130.179 ONBOOT=yes DOMAIN=public.net ZONE=public IPV6INIT=no ifcfg-eth1: (vmNet aka Internet) ---------------- BROADCAST=192.168.1.255 NETMASK=255.255.255.0 BOOTPROTO=static DEVICE=eth1 IPADDR=192.168.1.179 GATEWAY=192.168.1.254 ONBOOT=yes DNS1=192.168.1.1 DNS2=192.168.1.2 DOMAIN=public.net ZONE=public IPV6INIT=no

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Upgrade hypervisor to 4.1.1.1
by eric stam 10 Apr '17

10 Apr '17

Yesterday I executed an upgrade on my hypervisor to version 4.1.1.1 After the upgrade, it is impossible to start a virtual machine on it. The messages I found: Failed to connect socket to '/var/run/libvirt/virtlogd-sock': Connection refused [root@vm-1 log]# hosted-engine --vm-status | grep -i engine Engine status : {"reason": "bad vm status", "health": "bad", "vm": "down", "detail": "down"} state=EngineUnexpectedlyDown The redhead version: CentOS Linux release 7.3.1611 (Core) Is this a known problem? Regards, Eric

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