August 2019 - Users - oVirt List Archives

ovirt api snapshot date format?
by Bill James 29 Aug '19

29 Aug '19

I'm trying to use the ovirt REST api to read snapshot date but the number I'm getting back doesn't appear to be in epoch time. What format is it? Example: "date":1565299725928,"snapshot_status":"ok" Should be "Aug 8, 2019", epoch conversion put it at Tue May 16 16:25:28 51572. (accessed via https://$HOSTNAME/ovirt-engine/api/vms/$value/snapshots)

2 1

Removing Unknown VM's on Dead Cluster
by Ross, Travis 29 Aug '19

29 Aug '19

I've clearly seen this is a pretty common issue with many different methods for cleaning up dead clusters. I'm having issues with unknown VM's not allowing my host into Maintenance Mode. Version: ovirt-release36-3.6.7-1.noarch Situation: Another site repurposed a host entirely without properly cleaning it's status in my Engine. No option to delete host. I've attempted the "Confirm Host is Rebooted" -> Maintenance Mode. However the error is: Cannot Switch the following Hosts to Maintenance mode: ... One or more running VMs are indicated as non-migratable. The status of all the listed VM's is "UNKNOWN" w/ "?" next to them. If I look at the settings for these VM's they already have "Do not allow migration" checked. Also I'm unable to modify the VM since the Host doesn't exist. Can't just delete the Domain because the Host exists. Can't delete Storage because host is not in Maintenance Mode. Can't set Maintenance Mode because VM's can't migrate. At this point all I want to do is upgrade to latest ovirt, however I need to get this orphaned Domain out of my single node cluster, which still runs a ~10 VM's hosted on Gluster Storage. Thoughts on whether I could just backup these VM's, re-install ovirt fresh then import the VM's? Thanks, Travis Ross W 512.231.4235 M 512.547.9437 [cid:image003.png@01D55D96.2A607620] KLA-Tencor is now KLA! Learn more at kla.com <https://www.kla.com/>

1 0

Update single node environment from 4.3.3 to 4.3.5 problem
by Gianluca Cecchi 28 Aug '19

28 Aug '19

Hello, after updating hosted engine from 4.3.3 to 4.3.5 and then the only host composing the environment (plain CentOS 7.6) it seems it is not able to start vdsm daemons kernel installed with update is kernel-3.10.0-957.27.2.el7.x86_64 Same problem also if using previous running kernel 3.10.0-957.12.2.el7.x86_64 [root@ovirt01 vdsm]# uptime 00:50:08 up 25 min, 3 users, load average: 0.60, 0.67, 0.60 [root@ovirt01 vdsm]# [root@ovirt01 vdsm]# systemctl status vdsmd -l ● vdsmd.service - Virtual Desktop Server Manager Loaded: loaded (/etc/systemd/system/vdsmd.service; enabled; vendor preset: enabled) Active: failed (Result: start-limit) since Fri 2019-08-23 00:37:27 CEST; 7s ago Process: 25810 ExecStartPre=/usr/libexec/vdsm/vdsmd_init_common.sh --pre-start (code=exited, status=1/FAILURE) Aug 23 00:37:27 ovirt01.mydomain systemd[1]: Failed to start Virtual Desktop Server Manager. Aug 23 00:37:27 ovirt01.mydomain systemd[1]: Unit vdsmd.service entered failed state. Aug 23 00:37:27 ovirt01.mydomain systemd[1]: vdsmd.service failed. Aug 23 00:37:27 ovirt01.mydomain systemd[1]: vdsmd.service holdoff time over, scheduling restart. Aug 23 00:37:27 ovirt01.mydomain systemd[1]: Stopped Virtual Desktop Server Manager. Aug 23 00:37:27 ovirt01.mydomain systemd[1]: start request repeated too quickly for vdsmd.service Aug 23 00:37:27 ovirt01.mydomain systemd[1]: Failed to start Virtual Desktop Server Manager. Aug 23 00:37:27 ovirt01.mydomain systemd[1]: Unit vdsmd.service entered failed state. Aug 23 00:37:27 ovirt01.mydomain systemd[1]: vdsmd.service failed. [root@ovirt01 vdsm]# [root@ovirt01 vdsm]# pwd /var/log/vdsm [root@ovirt01 vdsm]# ll -t | head total 118972 -rw-r--r--. 1 root root 3406465 Aug 23 00:25 supervdsm.log -rw-r--r--. 1 root root 73621 Aug 23 00:25 upgrade.log -rw-r--r--. 1 vdsm kvm 0 Aug 23 00:01 vdsm.log -rw-r--r--. 1 vdsm kvm 538480 Aug 22 23:46 vdsm.log.1.xz -rw-r--r--. 1 vdsm kvm 187486 Aug 22 23:46 mom.log -rw-r--r--. 1 vdsm kvm 621320 Aug 22 22:01 vdsm.log.2.xz -rw-r--r--. 1 root root 374464 Aug 22 22:00 supervdsm.log.1.xz -rw-r--r--. 1 vdsm kvm 2097122 Aug 22 21:53 mom.log.1 -rw-r--r--. 1 vdsm kvm 636212 Aug 22 20:01 vdsm.log.3.xz [root@ovirt01 vdsm]# link to upgrade.log contents here: https://drive.google.com/file/d/17jtX36oH1hlbNUAiVhdBkVDbd28QegXG/view?usp=… link to supervdsm.log (in gzip format) here: https://drive.google.com/file/d/1l61ePU-eFS_xVHEAHnJthzTTnTyzu0MP/view?usp=… It seems that since update I get these kind of lines inside it... restore-net::DEBUG::2019-08-22 23:56:38,591::cmdutils::133::root::(exec_cmd) /sbin/tc filter del dev eth0 pref 5000 (cwd None) restore-net::DEBUG::2019-08-22 23:56:38,595::cmdutils::141::root::(exec_cmd) FAILED: <err> = 'RTNETLINK answers: Invalid argument\nWe have an error talking to the kernel\n'; <rc> = 2 [root@ovirt01 vdsm]# systemctl status supervdsmd -l ● supervdsmd.service - Auxiliary vdsm service for running helper functions as root Loaded: loaded (/usr/lib/systemd/system/supervdsmd.service; static; vendor preset: enabled) Active: active (running) since Fri 2019-08-23 00:25:17 CEST; 23min ago Main PID: 4540 (supervdsmd) Tasks: 3 CGroup: /system.slice/supervdsmd.service └─4540 /usr/bin/python2 /usr/share/vdsm/supervdsmd --sockfile /var/run/vdsm/svdsm.sock Aug 23 00:25:17 ovirt01.mydomain systemd[1]: Started Auxiliary vdsm service for running helper functions as root. [root@ovirt01 vdsm]# [root@ovirt01 vdsm]# ip a 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master ovirtmgmt state UP group default qlen 1000 link/ether b8:ae:ed:7f:17:11 brd ff:ff:ff:ff:ff:ff 3: wlan0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000 link/ether 00:c2:c6:a4:18:c5 brd ff:ff:ff:ff:ff:ff 4: ovs-system: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000 link/ether 36:21:c1:5e:70:aa brd ff:ff:ff:ff:ff:ff 5: br-int: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000 link/ether 46:d8:db:81:41:4e brd ff:ff:ff:ff:ff:ff 22: ovirtmgmt: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000 link/ether b8:ae:ed:7f:17:11 brd ff:ff:ff:ff:ff:ff inet 192.168.1.211/24 brd 192.168.1.255 scope global ovirtmgmt valid_lft forever preferred_lft forever [root@ovirt01 vdsm]# [root@ovirt01 vdsm]# ip route show default via 192.168.1.1 dev ovirtmgmt 192.168.1.0/24 dev ovirtmgmt proto kernel scope link src 192.168.1.211 [root@ovirt01 vdsm]# [root@ovirt01 vdsm]# brctl show bridge name bridge id STP enabled interfaces ovirtmgmt 8000.b8aeed7f1711 no eth0 [root@ovirt01 vdsm]# [root@ovirt01 vdsm]# systemctl status openvswitch ● openvswitch.service - Open vSwitch Loaded: loaded (/usr/lib/systemd/system/openvswitch.service; enabled; vendor preset: disabled) Active: active (exited) since Fri 2019-08-23 00:25:09 CEST; 26min ago Process: 3894 ExecStart=/bin/true (code=exited, status=0/SUCCESS) Main PID: 3894 (code=exited, status=0/SUCCESS) Tasks: 0 CGroup: /system.slice/openvswitch.service Aug 23 00:25:09 ovirt01.mydomain systemd[1]: Starting Open vSwitch... Aug 23 00:25:09 ovirt01.mydomain systemd[1]: Started Open vSwitch. [root@ovirt01 vdsm]# ovs-vsctl show 02539902-1788-4796-9cdf-cf11ce8436bb Bridge br-int fail_mode: secure Port br-int Interface br-int type: internal ovs_version: "2.11.0" [root@ovirt01 vdsm]# any hints? Thanks Gianluca

4 16

Evaluate oVirt to remove VMware
by dsalade＠gmail.com 28 Aug '19

28 Aug '19

Howdy All!!! Somewhat new user to Linux and having some issues with oVirt node networking. We are mainly a Windows/VMware medium shop but have a pretty good network. Our VMware setup has redundant switches using multiple VLANs. This was fairly easy to setup with VMware. We never had an issue with VMware, add 2 NICs to the ESXi host and then adding VLANs into the Virtual Switch. Biggest issue I am having, should I be bonding, teaming and VLANing on top of that? Tried setting up node with Engine inside which fails to deploy because of networking. Then I tried a standalone Engine and could not add node to it - I believe networking as well as Power Management agent was the problem. Would like the nodes/engine to be on one subnet (lets say 10.10.11.x) and VMs to be allowed to run there are well as 10 other VLANs. I guess welcome to the wonderful world of Linux networking and learning some new technologies is in store for me. I hope I am not being vague, like I said fairly new to Linux. Thanks for any responses! Allen

4 6

VDSM Hooks during migration
by Vrgotic, Marko 28 Aug '19

28 Aug '19

Dear oVIrt, Would you be so kind to help me/tell me or point me how to find which Hooks, and in which order, are triggered when VM is being migrated? Kindly awaiting your reply. — — — Met vriendelijke groet / Kind regards, Marko Vrgotic

2 6

Re: VM --- is not responding.
by Strahil 26 Aug '19

26 Aug '19

Hm... It was supposes to show controller status. Maybe the hpssacli you have is not supporting your raid cards.Check for newer version on HPE's support page. Best Regards, Strahil Nikolov Best Regards, Strahil NikolovOn Aug 14, 2019 11:40, Edoardo Mazza <edo7411(a)gmail.com> wrote: > > I installed hpssacli-2.40-13.0.x86_64.rpm and the result of "hpssacli ctrl all show status" is: > Error: No controllers detected. Possible causes:..... > The s.o. run on sd cards and the vm runs on array on traditional disk > thanks > Edoardo > > Il giorno lun 12 ago 2019 alle ore 05:59 Strahil <hunter86_bg(a)yahoo.com> ha scritto: >> >> Would you check the health status of the controllers : >> hpssacli ctrl all show status >> >> Best Regards, >> Strahil Nikolov >> >> On Aug 11, 2019 09:55, Edoardo Mazza <edo7411(a)gmail.com> wrote: >>> >>> The hosts are 3 ProLiant DL380 Gen10, 2 hosts with HPE Smart Array P816i-a SR Gen10 like controller and the other host with >>> HPE Smart Array P408i-a SR Gen10. The storage for ovirt enviroment is gluster and the last host is the arbiter in the gluster enviroment. >>> The S.M.A.R.T. healt status is ok for all host >>> Edoardo >>> >>> >>> >>> >>> >>> Il giorno gio 8 ago 2019 alle ore 16:19 Sandro Bonazzola <sbonazzo(a)redhat.com> ha scritto: >>>> >>>> >>>> >>>> Il giorno gio 8 ago 2019 alle ore 11:19 Edoardo Mazza <edo7411(a)gmail.com> ha scritto: >>>>> >>>>> Hi all, >>>>> It is more days that for same vm I received this error, but I don't underdand why. >>>>> The traffic of the virtual machine is not excessive, cpu and ram to, but for few minutes the vm is not responding. and in the messages log file of the vm I received the error under, yo can help me? >>>>> thanks >>>> >>>> >>>> can you check the S.M.A.R.T. health status of the disks? >>>> >>>> >>>>> >>>>> Edoardo >>>>> kernel: NMI watchdog: BUG: soft lockup - CPU#2 stuck for 25s! [kworker/2:0:26227] >>>>> Aug 8 02:51:11 vmmysql kernel: Modules linked in: binfmt_misc ip6t_rpfilter ipt_REJECT nf_reject_ipv4 ip6t_REJECT nf_reject_ >>>>> ipv6 xt_conntrack ip_set nfnetlink ebtable_nat ebtable_broute bridge stp llc ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_ >>>>> nat_ipv6 ip6table_mangle ip6table_security ip6table_raw iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_con >>>>> ntrack iptable_mangle iptable_security iptable_raw ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter snd_hda_c >>>>> odec_generic iosf_mbi crc32_pclmul ppdev ghash_clmulni_intel snd_hda_intel snd_hda_codec aesni_intel snd_hda_core lrw gf128mul >>>>> glue_helper ablk_helper snd_hwdep cryptd snd_seq snd_seq_device snd_pcm snd_timer snd soundcore virtio_rng sg virtio_balloon >>>>> i2c_piix4 parport_pc parport joydev pcspkr ip_tables xfs libcrc32c sd_mod >>>>> Aug 8 02:51:14 vmmysql kernel: crc_t10dif crct10dif_generic sr_mod cdrom virtio_net virtio_console virtio_scsi ata_generic p >>>>> ata_acpi crct10dif_pclmul crct10dif_common crc32c_intel serio_raw qxl floppy drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops ttm drm ata_piix libata virtio_pci drm_panel_orientation_quirks virtio_ring virtio dm_mirror dm_region_hash dm_log dm_mod >>>>> Aug 8 02:51:14 vmmysql kernel: CPU: 2 PID: 26227 Comm: kworker/2:0 Kdump: loaded Tainted: G L ------------ 3.10.0-957.12.1.el7.x86_64 #1 >>>>> Aug 8 02:51:14 vmmysql kernel: Hardware name: oVirt oVirt Node, BIOS 1.11.0-2.el7 04/01/2014 >>>>> Aug 8 02:51:14 vmmysql kernel: Workqueue: events_freezable disk_events_workfn >>>>> Aug 8 02:51:14 vmmysql kernel: task: ffff9e25b6609040 ti: ffff9e27b1610000 task.ti: ffff9e27b1610000 >>>>> Aug 8 02:51:14 vmmysql kernel: RIP: 00

2 1

Re: Need to enable STP on ovirt bridges
by Strahil 25 Aug '19

25 Aug '19

It seems that according to https://access.redhat.com/documentation/en-us/red_hat_virtualization/4.0/ht… the ports of interest are: 16514/TCP 49152 - 49216/TCP Best Regards, Strahil NikolovOn Aug 25, 2019 08:48, Strahil <hunter86_bg(a)yahoo.com> wrote: > > Curtis, > > Do you have enough space to run tcpdump (port not 22) on both hosts and on the small VM you have done previously - and then start the migration? > > Best Regards, > Strahil NikolovOn Aug 24, 2019 22:15, "Curtis E. Combs Jr." <ej.albany(a)gmail.com> wrote: > > > > I applied a 90Mbs QOS Rate Limit with 10 set for the shares to both > > interfaces of 2 of the hosts. My hosts names are swm-01 and swm-02. > > > > Creating a small VM from a Cinder template and running it gave me a test VM. > > > > When I migrated from swm-01 to swm-02, swm-01 immediately became > > unresponsive to pings, SSH'es, and to the ovirt interface which marked > > it as "NonResponsive" soon after the VM finished. The VM did finish > > migrating, however I'm unsure if that's a good migration or not. > > > > Thank you, Strahil. > > > > On Sat, Aug 24, 2019 at 12:39 PM Strahil <hunter86_bg(a)yahoo.com> wrote: > > > > > > What is your bandwidth threshold for the network used for VM migration ? > > > Can you set a 90 mbit/s threshold (yes, less than 100mbit/s) and try to migrate a small (1 GB RAM) VM ? > > > > > > Do you see disconnects ? > > > > > > If no, try a little bit up (the threshold) and check again. > > > > > > Best Regards, > > > Strahil NikolovOn Aug 23, 2019 23:19, "Curtis E. Combs Jr." <ej.albany(a)gmail.com> wrote: > > > > > > > > It took a while for my servers to come back on the network this time. > > > > I think it's due to ovirt continuing to try to migrate the VMs around > > > > like I requested. The 3 servers' names are "swm-01, swm-02 and > > > > swm-03". Eventually (about 2-3 minutes ago) they all came back online. > > > > > > > > So I disabled and stopped the lldpad service. > > > > > > > > Nope. Started some more migrations and swm-02 and swm-03 disappeared > > > > again. No ping, SSH hung, same as before - almost as soon as the > > > > migration started. > > > > > > > > If you wall have any ideas what switch-level setting might be enabled, > > > > let me know, cause I'm stumped. I can add it to the ticket that's > > > > requesting the port configurations. I've already added the port > > > > numbers and switch name that I got from CDP. > > > > > > > > Thanks again, I really appreciate the help! > > > > cecjr > > > > > > > > > > > > > > > > On Fri, Aug 23, 2019 at 3:28 PM Dominik Holler <dholler(a)redhat.com> wrote: > > > > > > > > > > > > > > > > > > > > On Fri, Aug 23, 2019 at 9:19 PM Dominik Holler <dholler(a)redhat.com> wrote: > > > > >> > > > > >> > > > > >> > > > > >> On Fri, Aug 23, 2019 at 8:03 PM Curtis E. Combs Jr. <ej.albany(a)gmail.com> wrote: > > > > >>> > > > > >>> This little cluster isn't in production or anything like that yet. > > > > >>> > > > > >>> So, I went ahead and used your ethtool commands to disable pause > > > > >>> frames on both interfaces of each server. I then, chose a few VMs to > > > > >>> migrate around at random. > > > > >>> > > > > >>> swm-02 and swm-03 both went out again. Unreachable. Can't ping, can't > > > > >>> ssh, and the SSH session that I had open was unresponsive. > > > > >>> > > > > >>> Any other ideas? > > > > >>> > > > > >> > > > > >> Sorry, no. Looks like two different NICs with different drivers and frimware goes down together. > > > > >> This is a strong indication that the root cause is related to the switch. > > > > >> Maybe you can get some information about the switch config by > > > > >> 'lldptool get-tlv -n -i em1' > > > > >> > > > > > > > > > > Another guess: > > > > > After the optional 'lldptool get-tlv -n -i em1' > > > > > 'systemctl stop lldpad' > > > > > another try to migrate. > > > > > > > > > > > > > > >> > > > > >> > > > > >>> > > > > >>> On Fri, Aug 23, 2019 at 1:50 PM Dominik Holler <dholler(a)redhat.com> wrote: > > > > >>> > > > > > >>> > > > > > >>> > > > > > >>> > On Fri, Aug 23, 2019 at 6:45 PM Curtis E. Combs Jr. <ej.albany(a)gmail.com> wrote: > > > > >>> >> > > > > >>> >> Unfortunately, I can't check on the switch. Trust me, I've tried. > > > > >>> >> These servers are in a Co-Lo and I've put 5 tickets in asking about > > > > >>> >> the port configuration. They just get ignored - but that's par for the > > > > >>> >> coarse for IT here. Only about 2 out of 10 of our tickets get any > > > > >>> >> response and usually the response doesn't help. Then

2 1

attach untagged vlan internally on vm
by ernestclydeachua＠gmail.com 25 Aug '19

25 Aug '19

good day currently i am testing oVirt on a single box and setup some tagged vms and non tagged vm. the non tagged vm is a firewall but it has limitations on the number of nic so i cannot attach tagged vnic and wish to handdle vlan tagging on it is it possible to pass untaged franes internally?

6 7

Re: Need to enable STP on ovirt bridges
by Strahil 25 Aug '19

25 Aug '19

Curtis, Do you have enough space to run tcpdump (port not 22) on both hosts and on the small VM you have done previously - and then start the migration? Best Regards, Strahil NikolovOn Aug 24, 2019 22:15, "Curtis E. Combs Jr." <ej.albany(a)gmail.com> wrote: > > I applied a 90Mbs QOS Rate Limit with 10 set for the shares to both > interfaces of 2 of the hosts. My hosts names are swm-01 and swm-02. > > Creating a small VM from a Cinder template and running it gave me a test VM. > > When I migrated from swm-01 to swm-02, swm-01 immediately became > unresponsive to pings, SSH'es, and to the ovirt interface which marked > it as "NonResponsive" soon after the VM finished. The VM did finish > migrating, however I'm unsure if that's a good migration or not. > > Thank you, Strahil. > > On Sat, Aug 24, 2019 at 12:39 PM Strahil <hunter86_bg(a)yahoo.com> wrote: > > > > What is your bandwidth threshold for the network used for VM migration ? > > Can you set a 90 mbit/s threshold (yes, less than 100mbit/s) and try to migrate a small (1 GB RAM) VM ? > > > > Do you see disconnects ? > > > > If no, try a little bit up (the threshold) and check again. > > > > Best Regards, > > Strahil NikolovOn Aug 23, 2019 23:19, "Curtis E. Combs Jr." <ej.albany(a)gmail.com> wrote: > > > > > > It took a while for my servers to come back on the network this time. > > > I think it's due to ovirt continuing to try to migrate the VMs around > > > like I requested. The 3 servers' names are "swm-01, swm-02 and > > > swm-03". Eventually (about 2-3 minutes ago) they all came back online. > > > > > > So I disabled and stopped the lldpad service. > > > > > > Nope. Started some more migrations and swm-02 and swm-03 disappeared > > > again. No ping, SSH hung, same as before - almost as soon as the > > > migration started. > > > > > > If you wall have any ideas what switch-level setting might be enabled, > > > let me know, cause I'm stumped. I can add it to the ticket that's > > > requesting the port configurations. I've already added the port > > > numbers and switch name that I got from CDP. > > > > > > Thanks again, I really appreciate the help! > > > cecjr > > > > > > > > > > > > On Fri, Aug 23, 2019 at 3:28 PM Dominik Holler <dholler(a)redhat.com> wrote: > > > > > > > > > > > > > > > > On Fri, Aug 23, 2019 at 9:19 PM Dominik Holler <dholler(a)redhat.com> wrote: > > > >> > > > >> > > > >> > > > >> On Fri, Aug 23, 2019 at 8:03 PM Curtis E. Combs Jr. <ej.albany(a)gmail.com> wrote: > > > >>> > > > >>> This little cluster isn't in production or anything like that yet. > > > >>> > > > >>> So, I went ahead and used your ethtool commands to disable pause > > > >>> frames on both interfaces of each server. I then, chose a few VMs to > > > >>> migrate around at random. > > > >>> > > > >>> swm-02 and swm-03 both went out again. Unreachable. Can't ping, can't > > > >>> ssh, and the SSH session that I had open was unresponsive. > > > >>> > > > >>> Any other ideas? > > > >>> > > > >> > > > >> Sorry, no. Looks like two different NICs with different drivers and frimware goes down together. > > > >> This is a strong indication that the root cause is related to the switch. > > > >> Maybe you can get some information about the switch config by > > > >> 'lldptool get-tlv -n -i em1' > > > >> > > > > > > > > Another guess: > > > > After the optional 'lldptool get-tlv -n -i em1' > > > > 'systemctl stop lldpad' > > > > another try to migrate. > > > > > > > > > > > >> > > > >> > > > >>> > > > >>> On Fri, Aug 23, 2019 at 1:50 PM Dominik Holler <dholler(a)redhat.com> wrote: > > > >>> > > > > >>> > > > > >>> > > > > >>> > On Fri, Aug 23, 2019 at 6:45 PM Curtis E. Combs Jr. <ej.albany(a)gmail.com> wrote: > > > >>> >> > > > >>> >> Unfortunately, I can't check on the switch. Trust me, I've tried. > > > >>> >> These servers are in a Co-Lo and I've put 5 tickets in asking about > > > >>> >> the port configuration. They just get ignored - but that's par for the > > > >>> >> coarse for IT here. Only about 2 out of 10 of our tickets get any > > > >>> >> response and usually the response doesn't help. Then

1 0

Re: Need to enable STP on ovirt bridges
by Strahil 25 Aug '19

25 Aug '19

Curtis, Do you have enough space to run tcpdump (port not 22) on both hosts and on the small VM you have done previously - and then start the migration? Best Regards, Strahil NikolovOn Aug 24, 2019 22:15, "Curtis E. Combs Jr." <ej.albany(a)gmail.com> wrote: > > I applied a 90Mbs QOS Rate Limit with 10 set for the shares to both > interfaces of 2 of the hosts. My hosts names are swm-01 and swm-02. > > Creating a small VM from a Cinder template and running it gave me a test VM. > > When I migrated from swm-01 to swm-02, swm-01 immediately became > unresponsive to pings, SSH'es, and to the ovirt interface which marked > it as "NonResponsive" soon after the VM finished. The VM did finish > migrating, however I'm unsure if that's a good migration or not. > > Thank you, Strahil. > > On Sat, Aug 24, 2019 at 12:39 PM Strahil <hunter86_bg(a)yahoo.com> wrote: > > > > What is your bandwidth threshold for the network used for VM migration ? > > Can you set a 90 mbit/s threshold (yes, less than 100mbit/s) and try to migrate a small (1 GB RAM) VM ? > > > > Do you see disconnects ? > > > > If no, try a little bit up (the threshold) and check again. > > > > Best Regards, > > Strahil NikolovOn Aug 23, 2019 23:19, "Curtis E. Combs Jr." <ej.albany(a)gmail.com> wrote: > > > > > > It took a while for my servers to come back on the network this time. > > > I think it's due to ovirt continuing to try to migrate the VMs around > > > like I requested. The 3 servers' names are "swm-01, swm-02 and > > > swm-03". Eventually (about 2-3 minutes ago) they all came back online. > > > > > > So I disabled and stopped the lldpad service. > > > > > > Nope. Started some more migrations and swm-02 and swm-03 disappeared > > > again. No ping, SSH hung, same as before - almost as soon as the > > > migration started. > > > > > > If you wall have any ideas what switch-level setting might be enabled, > > > let me know, cause I'm stumped. I can add it to the ticket that's > > > requesting the port configurations. I've already added the port > > > numbers and switch name that I got from CDP. > > > > > > Thanks again, I really appreciate the help! > > > cecjr > > > > > > > > > > > > On Fri, Aug 23, 2019 at 3:28 PM Dominik Holler <dholler(a)redhat.com> wrote: > > > > > > > > > > > > > > > > On Fri, Aug 23, 2019 at 9:19 PM Dominik Holler <dholler(a)redhat.com> wrote: > > > >> > > > >> > > > >> > > > >> On Fri, Aug 23, 2019 at 8:03 PM Curtis E. Combs Jr. <ej.albany(a)gmail.com> wrote: > > > >>> > > > >>> This little cluster isn't in production or anything like that yet. > > > >>> > > > >>> So, I went ahead and used your ethtool commands to disable pause > > > >>> frames on both interfaces of each server. I then, chose a few VMs to > > > >>> migrate around at random. > > > >>> > > > >>> swm-02 and swm-03 both went out again. Unreachable. Can't ping, can't > > > >>> ssh, and the SSH session that I had open was unresponsive. > > > >>> > > > >>> Any other ideas? > > > >>> > > > >> > > > >> Sorry, no. Looks like two different NICs with different drivers and frimware goes down together. > > > >> This is a strong indication that the root cause is related to the switch. > > > >> Maybe you can get some information about the switch config by > > > >> 'lldptool get-tlv -n -i em1' > > > >> > > > > > > > > Another guess: > > > > After the optional 'lldptool get-tlv -n -i em1' > > > > 'systemctl stop lldpad' > > > > another try to migrate. > > > > > > > > > > > >> > > > >> > > > >>> > > > >>> On Fri, Aug 23, 2019 at 1:50 PM Dominik Holler <dholler(a)redhat.com> wrote: > > > >>> > > > > >>> > > > > >>> > > > > >>> > On Fri, Aug 23, 2019 at 6:45 PM Curtis E. Combs Jr. <ej.albany(a)gmail.com> wrote: > > > >>> >> > > > >>> >> Unfortunately, I can't check on the switch. Trust me, I've tried. > > > >>> >> These servers are in a Co-Lo and I've put 5 tickets in asking about > > > >>> >> the port configuration. They just get ignored - but that's par for the > > > >>> >> coarse for IT here. Only about 2 out of 10 of our tickets get any > > > >>> >> response and usually the response doesn't help. Then

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