XCP-ng
    • Categories
    • Recent
    • Tags
    • Popular
    • Users
    • Groups
    • Register
    • Login

    Broken Host Consoles in fresh xcp-ng 8 installation. VM consoles work.

    Scheduled Pinned Locked Moved Solved Xen Orchestra
    displayconsolegpu
    27 Posts 6 Posters 10.7k Views 2 Watching
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • olivierlambertO Offline
      olivierlambert Vates 🪐 Co-Founder CEO
      last edited by

      Does a reboot fix anything? Try to see if you have network parameters set somewhere. Maybe XCP-ng Center saved some config?

      1 Reply Last reply Reply Quote 0
      • R Offline
        rjt
        last edited by rjt

        I have rebooted the hosts numerous times. xcp center configuration looks good.
        Tried reapplying network config, but nothing.
        Tried the xsconsole emergency network reset.
        Tried the firstboot service and /etc/firstboot.d/, but no luck.
        Wonder if it is picking up configuration information from another harddrive used to boot xcp.
        Resigned to wipe and reinstall.

        1 Reply Last reply Reply Quote 0
        • olivierlambertO Offline
          olivierlambert Vates 🪐 Co-Founder CEO
          last edited by

          I don't know how this thing might be stuck in your config. At worst you can edit XAPI DB manually and change the value.

          1. Stop XAPI service on all hosts of the pool
          2. Copy /var/xapi/state.db somewhere else in case
          3. Edit it, and find the bad IP, replace it with the right one
          4. Save
          5. Start XAPI on all hosts, master first
          R 1 Reply Last reply Reply Quote 0
          • R Offline
            rjt @olivierlambert
            last edited by

            @olivierlambert
            The /var/lib/xcp/state.db is basically a single line of xml with a half-million characters.
            The old egrep or sed or vi searching did not seem to narrow things down likely they normally do. Used xmllint to put the db in a pretty format with line breaks and indentation. Then vi to edit. Of course, as soon as i start xapi, those changes are lost. I assume there must be a massive speedup in lookups when all on a single line.

            [23:59 xen-B xcp]# pushd /var/lib/xcp/
            [23:59 xen-B xcp]# systemctl stop xapi
            [23:59 xen-B xcp]# cp state.db ./state-YYYYMMDD-HHMM.db
            [23:59 xen-B xcp]# egrep  '(192.168.2.141)' ./state.db | wc
                  1   11757  454034
            [23:59 xen-B xcp]# echo " :( 1 line with over 11,000 words :(" 
            [23:59 xen-B xcp]# xmllint --format state.db >> state.xmllint--pretty.db
            [23:59 xen-B xcp]# egrep  '(192.168.2.141)' ./state.db | wc
                 10     193   13526
            [23:59 xen-B xcp]# echo "i can deal with 193 words :) and edited with vi" 
            [23:59 xen-B xcp]# mv state.xmllint--pretty.db ./state.db
            [23:59 xen-B xcp]# systemctl start xapi
            

            xe console-list indicates the the proper IP addresses:

            [23:59 xen-B xcp]# xe console-list  vm-name-label=Control\ domain\ on\ host:\ xen-B
            
            uuid ( RO)             : d5039d1a-64ad-c8a9-a309-51e568ba2926
                      vm-uuid ( RO): 1593da28-8e85-4252-878e-778eb414c549
                vm-name-label ( RO): Control domain on host: xen-B
                     protocol ( RO): VT100
                     location ( RO): https://192.168.10.192/console?ref=OpaqueRef:7be93ca1-76cf-4649-8276-74891eac0a06
            
            
            uuid ( RO)             : 7bcf725e-ae83-cf6f-7997-7dd63469929f
                      vm-uuid ( RO): 1593da28-8e85-4252-878e-778eb414c549
                vm-name-label ( RO): Control domain on host: xen-B
                     protocol ( RO): RFB
                     location ( RO): https://192.168.10.192/console?ref=OpaqueRef:1361b935-2d25-4929-9b27-4b0483cbb0f7
            
            
            [00:00 xen-B xcp]# ip a show dev xenbr0 | egrep inet
                inet 192.168.10.192/16 brd 192.168.255.255 scope global dynamic xenbr0
            

            But there is still a blank host console in both XOA and xcp center. Suppose those OpaqueRefs have to be fixed up as well. EFI starting crashing on this r720, so having many other severe issues to deal with.

            1 Reply Last reply Reply Quote 0
            • R Offline
              rjt
              last edited by

              Anybody have an idea of what to do to get our consoles back?

              1 Reply Last reply Reply Quote 0
              • borzelB Offline
                borzel XCP-ng Center Team
                last edited by borzel

                Do a recursive grep in /etc to find all files that have the old IP address

                Like grep -R 'IP-Address' /etc

                R 1 Reply Last reply Reply Quote 0
                • R Offline
                  rjt @borzel
                  last edited by rjt

                  @borzel i had tried that but found grep did not work like i am used. egrep worked better, but still not like how i am used to..

                   egrep -R '(10\.40\.|192\.168\.)'  /etc
                  
                  1 Reply Last reply Reply Quote 0
                  • D Offline
                    DreDay
                    last edited by

                    I've seen that before where when you initially set the management IP via DHCP it breaks the console when the IP changes. XCP-ng does seem to register that the IP has changed and so it does not update the console URI.

                    We were able to resolve the issue by setting the IP statically on the XCP-ng node(I believe a reboot was also required). That updated the console's URI and it was working again in XCP-ng Center and XO.

                    R 1 Reply Last reply Reply Quote 1
                    • R Offline
                      rjt @DreDay
                      last edited by

                      @DreDay yes, statically leased DHCP addresses that used to work on spinning platters of rust no longer work on Solid State Drives.

                      However, setting static IP address did not work to fix it. Had to reinstall, setting a static IP at re-installation time.

                      1 Reply Last reply Reply Quote 0
                      • A Offline
                        asdfonseca @olivierlambert
                        last edited by

                        @olivierlambert , i have the same problem, but only under NAT. In same subnet, both host and VM consoles work properly.

                        There's any special configuration to work under NAT?

                        1 Reply Last reply Reply Quote 0
                        • olivierlambertO Offline
                          olivierlambert Vates 🪐 Co-Founder CEO
                          last edited by

                          When XO will ask to access host console, XCP-ng XAPI will return the local host console IP (in the same network).

                          So if you XO can't reach this IP, console connection can't work.

                          A 2 Replies Last reply Reply Quote 1
                          • A Offline
                            asdfonseca @olivierlambert
                            last edited by

                            @olivierlambert, all right! Thanks for your explanation!

                            1 Reply Last reply Reply Quote 0
                            • A Offline
                              asdfonseca @olivierlambert
                              last edited by

                              @olivierlambert, just one more question for the XCP-Ng development team:

                              Would it be possible for XCP-ng XAPI to read and return, for example, the addresses contained in the [/etc/hosts] file? In this case, if we put both the local IP and the external address used to access NAT on /etc/hosts and do a careful reading and interpretation of its content, it would act analogously to a DNS to translate both the local address and the external to XAPI.

                              Could it be that when implementing a change like this in XCP-Ng, would XAPI work under NAT?

                              1 Reply Last reply Reply Quote 0
                              • olivierlambertO Offline
                                olivierlambert Vates 🪐 Co-Founder CEO
                                last edited by

                                Short answer: no.
                                Long answer: I'm not sure on the "how" we could do that. You should probably ask a XAPI developer about this. I'll try to get one or two here 🙂

                                1 Reply Last reply Reply Quote 0
                                • First post
                                  Last post