[ovirt-users] too many glitches while moving storage domain
Hi, today I started one not so common operation and I would like to share my (not so good) experience. I have 4 old Opteron G3 hosts which creates 1 DC with 1 cluster with 4.2 compatibility. Then I got 2 newer Intel based hosts which creates separate DC and cluster. I use one shared FC storage with few LUNs for all the stuff. Intel cluster is selfhosted with oVirt 4.4.2 where I migrated original standalone oVirt 4.3.10 manager. So I have 2 DCs, one with 4.2 and one with 4.4 compatibility. Now the funny part... I had 2 LUNs connected to old 4.2 DC. My intention was detach one of them and attach it to the new DC. first pain was that some of vms had ther disks on both LUNs. It is indicated late in the process and without hint which vms they are. So I had to activate LUN in old DC and tried to find that vms (search string in vms tab "Storage = one and Storage = two" seems not working). Ok, it took two or three rounds... then, also late in the process there was problem that one vm had previewed snapshot so another round with activation of LUN in old DC... Then I was able detach and import LUN to new DC. Nice, but with warning that LUN has 4.2 compatibility which will be converted to 4.4 and there is no way back to connect it to old DC... It is logical but very scary if something went wrong... but it did not in my case :-) LUN is connected in new DC. Now I had to import vms. Most vms were imported ok but two of them were based on template wich resides on other LUN. It was not indicated during detaching! It looks like I cannot move template from storage to storage other way than through Export storage (which I don't have at this moment) or through OVA export for which I have not enough free storage space on hosts. Its a trap! :-) Btw. there is no check for free space while starting export to OVA (template uses preallocated disk). Exporting task still runs but there is no free space at the host... and probably no way to cancel it from manager :-( Ok, I had most of the vms imported. Last really strange thing is that I lost one vm during import. It is not listed in VirtualMachines nor in VM import tab on starage nor in Disk tab... that vm was an Aruba migration tool and was imported from OVN image. In fact there are two disks in Disk import tab, one of them has no Alias/description and was created today around time I started work on this migration. The second one has alias "vmdisk1" and is few months older but I have no idea if it is the lost vm... Sorry for long story, TL;DR version could be: There are glitches in some (not so common) workflows... Cheers, Jiri smime.p7s Description: Elektronicky podpis S/MIME ___ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-le...@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/3RSL5Y2BDX2OWYXHVWJXZV4C2XA5VMBX/
[ovirt-users] Re: How to make oVirt + GlusterFS bulletproof
Thanks Alex. I actually think that the issue was caused by power loss on the switch socket. ___ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-le...@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/ADRGAKW7UFOI252XSB2MJIMVIWQK3B7P/
[ovirt-users] Re: How to make oVirt + GlusterFS bulletproof
Thanks Strahil The data center is remote so I will definitely ask the lab guys to ensure the switch is connected to battery supported power socket. So the gluster's weak point is actually the switch in the network? Can it have difficulty finding out which version of data is correct after the switch was off for some time? ___ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-le...@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/VFP2FX2YRAPOH3FPS6MBUYD6KXD55VIA/
[ovirt-users] Re: problems installing standard Linux as nodes in 4.4
On Sat, 10 Oct 2020, 01:24 Gianluca Cecchi, wrote: > On Fri, Oct 9, 2020 at 7:12 PM Martin Perina wrote: > >> >> >> Could you please share with us all logs from engine gathered by >> logcollector? We will try to find out any clue what's wrong in your env ... >> >> Thanks, >> Martin >> >> > I will try to collect. > In the mean time I've found that SSH could be in some way involved > > When I add the host and get the immediate failure and apparently nothing > happens at all, I see these two lines in /var/log/ovirt-engine/server.log > > 2020-10-09 18:15:09,369+02 WARN > [org.apache.sshd.client.session.ClientConnectionService] > (sshd-SshClient[7cb54873]-nio2-thread-1) > globalRequest(ClientConnectionService[ClientSessionImpl[root@ov200 > /10.4.192.32:22]])[hostkeys...@openssh.com, want-reply=false] failed > (SshException) to process: EdDSA provider not supported > 2020-10-09 18:15:09,699+02 WARN > [org.apache.sshd.client.session.ClientConnectionService] > (sshd-SshClient[2cbceeab]-nio2-thread-1) > globalRequest(ClientConnectionService[ClientSessionImpl[root@ov200 > /10.4.192.32:22]])[hostkeys...@openssh.com, want-reply=false] failed > (SshException) to process: EdDSA provider not supported > This harmless, AFAIK EdDSA is not supported by default in OpenJDK 11 and engine uses only ssh-rsa and ssh-rsa2 anyway > could it be that the ssh client embedded is not able to connect to the > CentOS 8.2 for some reason? > If that's the case we should see an error either in engine.log or ansible-runner-service.log > On host at the moment when I try to add it I see again two sessions opened > and immediately closed (tried several times), eg in the timeframe above I > have: > > Oct 9 18:15:09 ov200 systemd-logind[1237]: New session 41 of user root. > Oct 9 18:15:09 ov200 systemd[1]: Started Session 41 of user root. > Oct 9 18:15:09 ov200 systemd-logind[1237]: Session 41 logged out. Waiting > for processes to exit. > Oct 9 18:15:09 ov200 systemd-logind[1237]: Removed session 41. > Oct 9 18:15:09 ov200 systemd-logind[1237]: New session 42 of user root. > Oct 9 18:15:09 ov200 systemd[1]: Started Session 42 of user root. > Oct 9 18:15:09 ov200 systemd-logind[1237]: Session 42 logged out. Waiting > for processes to exit. > Oct 9 18:15:09 ov200 systemd-logind[1237]: Removed session 42. > > anyway at sshd service level it seems it is ok om the host: > > journalctl -u sshd.service has > > Oct 09 18:15:09 ov200 sshd[13379]: Accepted password for root from > 10.4.192.43 port 46008 ssh2 > Oct 09 18:15:09 ov200 sshd[13379]: pam_unix(sshd:session): session opened > for user root by (uid=0) > Oct 09 18:15:09 ov200 sshd[13379]: pam_unix(sshd:session): session closed > for user root > Oct 09 18:15:09 ov200 sshd[13398]: Accepted password for root from > 10.4.192.43 port 46014 ssh2 > Oct 09 18:15:09 ov200 sshd[13398]: pam_unix(sshd:session): session opened > for user root by (uid=0) > Oct 09 18:15:09 ov200 sshd[13398]: pam_unix(sshd:session): session closed > for user root > > On the host I have not customized anything ssh related: > > [root@ov200 ssh]# ps -ef|grep sshd > root1274 1 0 Oct08 ?00:00:00 /usr/sbin/sshd -D > -oCiphers=aes256-...@openssh.com,chacha20-poly1...@openssh.com > ,aes256-ctr,aes256-cbc,aes128-...@openssh.com,aes128-ctr,aes128-cbc > -oMACs=hmac-sha2-256-...@openssh.com,hmac-sha1-...@openssh.com, > umac-128-...@openssh.com,hmac-sha2-512-...@openssh.com > ,hmac-sha2-256,hmac-sha1,umac-...@openssh.com,hmac-sha2-512 > -oGSSAPIKexAlgorithms=gss-gex-sha1-,gss-group14-sha1- > -oKexAlgorithms=curve25519-sha256,curve25519-sha...@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group14-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1 > -oHostKeyAlgorithms=rsa-sha2-256,rsa-sha2-256-cert-...@openssh.com > ,ecdsa-sha2-nistp256,ecdsa-sha2-nistp256-cert-...@openssh.com > ,ecdsa-sha2-nistp384,ecdsa-sha2-nistp384-cert-...@openssh.com > ,rsa-sha2-512,rsa-sha2-512-cert-...@openssh.com,ecdsa-sha2-nistp521, > ecdsa-sha2-nistp521-cert-...@openssh.com,ssh-ed25519, > ssh-ed25519-cert-...@openssh.com,ssh-rsa,ssh-rsa-cert-...@openssh.com > -oPubkeyAcceptedKeyTypes=rsa-sha2-256,rsa-sha2-256-cert-...@openssh.com > ,ecdsa-sha2-nistp256,ecdsa-sha2-nistp256-cert-...@openssh.com > ,ecdsa-sha2-nistp384,ecdsa-sha2-nistp384-cert-...@openssh.com > ,rsa-sha2-512,rsa-sha2-512-cert-...@openssh.com,ecdsa-sha2-nistp521, > ecdsa-sha2-nistp521-cert-...@openssh.com,ssh-ed25519, > ssh-ed25519-cert-...@openssh.com,ssh-rsa,ssh-rsa-cert-...@openssh.com > -oCASignatureAlgorithms=rsa-sha2-256,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,rsa-sha2-512,ecdsa-sha2-nistp521,ssh-ed25519,ssh-rsa > > and in sshd_config > > HostKey /etc/ssh/ssh_host_rsa_key > HostKey /etc/ssh/ssh_host_ecdsa_key > HostKey /etc/ssh/ssh_host_ed25519_key > That looks good > Can I replicate the command that the
[ovirt-users] oVirt 4.4.2.6-1.el8 (SHE). Grafana integration not configured. The link to the Monitoring portal is not displayed on the Manager home page.
Good day! Made a fresh installation of 4.4.2 Self Hosted Engine (not an upgrade from 4.4.1) however there is no link to the Monitoring portal on the home page. Service ovirt-engine-dwhd started and work. Grafana-server service not present in /etc/systemd and not configured. Please tell me what needs to be done to make the monitoring portal work? PS// In the previous version installation 4.4.1 SHE the grafana-server worked immediately after installation and the link to the monitoring portal was available immediately without any additional steps. ___ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-le...@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/YLIJKMO5H7EJHE7RMQTBYSNWCMQ32VI3/
[ovirt-users] Re: problems installing standard Linux as nodes in 4.4
I guess you tried to ssh to the HostedEngine and then ssh to the host , right ? Best Regards, Strahil Nikolov В събота, 10 октомври 2020 г., 02:28:35 Гринуич+3, Gianluca Cecchi написа: On Fri, Oct 9, 2020 at 7:12 PM Martin Perina wrote: > > > Could you please share with us all logs from engine gathered by logcollector? > We will try to find out any clue what's wrong in your env ... > > Thanks, > Martin > I will try to collect. In the mean time I've found that SSH could be in some way involved When I add the host and get the immediate failure and apparently nothing happens at all, I see these two lines in /var/log/ovirt-engine/server.log 2020-10-09 18:15:09,369+02 WARN [org.apache.sshd.client.session.ClientConnectionService] (sshd-SshClient[7cb54873]-nio2-thread-1) globalRequest(ClientConnectionService[ClientSessionImpl[root@ov200/10.4.192.32:22]])[hostkeys...@openssh.com, want-reply=false] failed (SshException) to process: EdDSA provider not supported 2020-10-09 18:15:09,699+02 WARN [org.apache.sshd.client.session.ClientConnectionService] (sshd-SshClient[2cbceeab]-nio2-thread-1) globalRequest(ClientConnectionService[ClientSessionImpl[root@ov200/10.4.192.32:22]])[hostkeys...@openssh.com, want-reply=false] failed (SshException) to process: EdDSA provider not supported could it be that the ssh client embedded is not able to connect to the CentOS 8.2 for some reason? On host at the moment when I try to add it I see again two sessions opened and immediately closed (tried several times), eg in the timeframe above I have: Oct 9 18:15:09 ov200 systemd-logind[1237]: New session 41 of user root. Oct 9 18:15:09 ov200 systemd[1]: Started Session 41 of user root. Oct 9 18:15:09 ov200 systemd-logind[1237]: Session 41 logged out. Waiting for processes to exit. Oct 9 18:15:09 ov200 systemd-logind[1237]: Removed session 41. Oct 9 18:15:09 ov200 systemd-logind[1237]: New session 42 of user root. Oct 9 18:15:09 ov200 systemd[1]: Started Session 42 of user root. Oct 9 18:15:09 ov200 systemd-logind[1237]: Session 42 logged out. Waiting for processes to exit. Oct 9 18:15:09 ov200 systemd-logind[1237]: Removed session 42. anyway at sshd service level it seems it is ok om the host: journalctl -u sshd.service has Oct 09 18:15:09 ov200 sshd[13379]: Accepted password for root from 10.4.192.43 port 46008 ssh2 Oct 09 18:15:09 ov200 sshd[13379]: pam_unix(sshd:session): session opened for user root by (uid=0) Oct 09 18:15:09 ov200 sshd[13379]: pam_unix(sshd:session): session closed for user root Oct 09 18:15:09 ov200 sshd[13398]: Accepted password for root from 10.4.192.43 port 46014 ssh2 Oct 09 18:15:09 ov200 sshd[13398]: pam_unix(sshd:session): session opened for user root by (uid=0) Oct 09 18:15:09 ov200 sshd[13398]: pam_unix(sshd:session): session closed for user root On the host I have not customized anything ssh related: [root@ov200 ssh]# ps -ef|grep sshd root 1274 1 0 Oct08 ? 00:00:00 /usr/sbin/sshd -D -oCiphers=aes256-...@openssh.com,chacha20-poly1...@openssh.com,aes256-ctr,aes256-cbc,aes128-...@openssh.com,aes128-ctr,aes128-cbc -oMACs=hmac-sha2-256-...@openssh.com,hmac-sha1-...@openssh.com,umac-128-...@openssh.com,hmac-sha2-512-...@openssh.com,hmac-sha2-256,hmac-sha1,umac-...@openssh.com,hmac-sha2-512 -oGSSAPIKexAlgorithms=gss-gex-sha1-,gss-group14-sha1- -oKexAlgorithms=curve25519-sha256,curve25519-sha...@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group14-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1 -oHostKeyAlgorithms=rsa-sha2-256,rsa-sha2-256-cert-...@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp256-cert-...@openssh.com,ecdsa-sha2-nistp384,ecdsa-sha2-nistp384-cert-...@openssh.com,rsa-sha2-512,rsa-sha2-512-cert-...@openssh.com,ecdsa-sha2-nistp521,ecdsa-sha2-nistp521-cert-...@openssh.com,ssh-ed25519,ssh-ed25519-cert-...@openssh.com,ssh-rsa,ssh-rsa-cert-...@openssh.com -oPubkeyAcceptedKeyTypes=rsa-sha2-256,rsa-sha2-256-cert-...@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp256-cert-...@openssh.com,ecdsa-sha2-nistp384,ecdsa-sha2-nistp384-cert-...@openssh.com,rsa-sha2-512,rsa-sha2-512-cert-...@openssh.com,ecdsa-sha2-nistp521,ecdsa-sha2-nistp521-cert-...@openssh.com,ssh-ed25519,ssh-ed25519-cert-...@openssh.com,ssh-rsa,ssh-rsa-cert-...@openssh.com -oCASignatureAlgorithms=rsa-sha2-256,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,rsa-sha2-512,ecdsa-sha2-nistp521,ssh-ed25519,ssh-rsa and in sshd_config HostKey /etc/ssh/ssh_host_rsa_key HostKey /etc/ssh/ssh_host_ecdsa_key HostKey /etc/ssh/ssh_host_ed25519_key Can I replicate the command that the engine would run on host through ssh? Gianluca ___ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-le...@ovirt.org Privacy Statement:
