Xen orchestra VM Console broken?
Is there any reason this might happen if my Xen Server is Citrix 7.1, or XCP 7.6? This is the current suspicion, after a suggestion from the writer of the install script.
Made another VM with Rocky Linux 8, and a copy of the existing to duplicate my set up. Added some hosts to it, and sure enough same problem. Tried to pull an update to XenOrchestraInstallerUpdater, but its already up to date, and the author says its auto-updates.
So far, not finding a common thread, between them showing up and not showing up. Happens in Firefox, and Chrome, Doesn't appear tob e related to Xen Guest Tools version, getting device drivers from MS or no, or version of XenServer.
As long as im on this old version of XO, it seems to work.
I do see these when i bring up a VM console that doesn't show, and DON'T see them when one does show.
Failed when connecting: Failed to connect to server ( (code: 1005)) util.js:44:54 Error util.js:44 _fail rfb.js:578 f rfb.js:233 onclose websock.js:305 open websock.js:307 _connect rfb.js:384 _updateConnectionState rfb.js:546 connect rfb.js:279 p react-novnc.js:106 componentDidMount react-novnc.js:111 React 12 listen EventListener.js:29 React 29 Tried changing state of a disconnected RFB object util.js:44:54 Error util.js:44 _updateConnectionState rfb.js:473 disconnect rfb.js:284 _clean react-novnc.js:66 p react-novnc.js:72 (Async: setTimeout handler) _onUpdateState react-novnc.js:44 _updateConnectionState rfb.js:519 _fail rfb.js:588 f rfb.js:233 onclose websock.js:305 open websock.js:307 _connect rfb.js:384 _updateConnectionState rfb.js:546 connect rfb.js:279 p react-novnc.js:106 componentDidMount react-novnc.js:111 React 12 listen EventListener.js:29 React 29 trapBubbledEvent listenTo z _updateDOMProperties mountComponent mountComponent mountChildren _createInitialChildren mountComponent mountComponent mountChildren _createInitialChildren mountComponent mountComponent performInitialMount mountComponent mountComponent performInitialMount mountComponent mountComponent performInitialMount mountComponent mountComponent performInitialMount mountComponent mountComponent performInitialMount mountComponent mountComponent
Can you check since which commit you have the issue? (eg just before the commit that @ronivay pointed to you)
Try to get on commit
c99120bd24b3b73128a0944bb54d4f1dd6ed61e8), rebuild and try again
after googling some git commands; im not very versed in git at all, so not sure how to get that.
this is the one that last worked for me, and the one im currently using. I save the last 3 in @ronivay script.
this is the one that I pulled and it seems to break:
I see another comment on the issue tracker from @ronivay. I'll try to get to his suggestion a little later.
and just to link these two together for someone in the way future:
@olivierlambert , I received exact instructions from @ronivay on how to do that. Using commit b9ff3db9b in my new temporary install of XO, everything works fine.
Moving to c99120b seems to break the console on anything other than XCP 8.2.
And I've mentioned before I think: all of our hardware does support XCP 8.2, but almost none of the RAID card monitor software works there. 80% of them are using 3Ware/ LSI 9750's. I can't recall the exact problem, but the executable for the web-admin doesn't run.
- We'll restore backward compatibility and fix that ( @florent will fix that commit). Thanks for reporting it
- Your previous XCP-ng installs aren't patched anymore, so you are at risk. You should really migrate to it, regardless the rest (and maybe seek for a solution for your RAID monitoring, but installing stuff in dom0 is not recommended in general). At least this advice worth for production use, not home lab.
Issue created: https://github.com/vatesfr/xen-orchestra/issues/6187
We can't reproduce the problem here
hrm, well, I bumped my temp install of XO back to the master branch, and consoles broke. -Appears- to only broke with XCP 7.6. 7.1, sites worked.
I can also reproduce this with XCP-ng 7.6. I’ll try to do some additional tests. Let me know if there’s anything i can assist with.
Okay we tested with XS 7.1 and XCP-ng 7.5, without any luck
Can you describe a bit more your test protocol?
@ronivay I did a lot of tests yesterday (master/latest/old and new commit) , with a wide range of xcp and didn't reproduce it
Do you use any http proxy between XO an XCP ? Do you use some kind of network filtering ? do you use xo in HTTP or HTTPS mode ?
Interestingly console for some old VM's with old OS are working, like centos 6, debian 8 but anything above those (centos7, debian 10, debian 11) aren't. I'm getting same errors in browser as listed by @bberndt earlier. This can be found from host
Apr 14 09:55:45 xs xapi: [debug|xs|33053260 INET :::80|Connection to VM console R:7839b84e856e|console] VM OpaqueRef:be204b50-6028-41f7-9744-e94ad7329046 console port: Some unix:/var/run/xen/vnc-290 Apr 14 09:55:45 xs xapi: [error|xs|33053260 INET :::80|Connection to VM console R:7839b84e856e|console] No implementation for web-sockets console proxy to a Unix domain socket Apr 14 09:55:46 xs xapi: [error|xs|33053260 INET :::80||backtrace] Connection to VM console R:7839b84e856e failed with exception (Failure "ws_proxy: not implemented") Apr 14 09:55:46 xs xapi: [error|xs|33053260 INET :::80||backtrace] Raised (Failure "ws_proxy: not implemented") Apr 14 09:55:46 xs xapi: [error|xs|33053260 INET :::80||backtrace] 1/1 xapi @ xs Raised at file (Thread 33053260 has no backtrace table. Was with_backtraces called?, line 0 Apr 14 09:55:46 xs xapi: [error|xs|33053260 INET :::80||backtrace]
So far i've tested with XO built with XenOrchestraInstallerUpdater (obviously ;)) and also built one manually, same symptoms. I've tried XO with and without reverse proxy, with http, with https, with one in same private network as XCP-ng host, with one connecting to it over VPN. No special firewalling or filtering in between and no HTTP proxy.
But as the error from host says, it sounds like it’s simply missing support for this type of console connection.
E: and just for the record. wsproxy package is installed:
# rpm -q wsproxy wsproxy-1.6.0-4.el7.centos.x86_64
@ronivay Do you mean it works for PV guests but not HVM ones?
edit: that might be the reason why we can't reproduce since we probably test on PV guest
Yeah good point, all those old ones are indeed PV guests and all the rest are HVM.
@ronivay that's a great information. I can reproduce the comportment with xenserver 7.1 CU 2
from this PR: https://github.com/vatesfr/xen-orchestra/pull/6191
Thanks. This seems to fix it for me at least. XO logs
FALLBACKfor those HVM VM's and console opens up fine.
I'm making a little code cleanup before merging in master (removing console , adding changelog)
We'll probably make another patch release with this fix.
I'm glad you saw it and give us such a precise feedback.