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

    XOSTOR hyperconvergence preview

    Scheduled Pinned Locked Moved XOSTOR
    446 Posts 47 Posters 479.1k Views 48 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.
    • ronan-aR Offline
      ronan-a Vates 🪐 XCP-ng Team @BHellman
      last edited by

      @BHellman The first post has a FAQ that I update each time I meet users with a common/recurring problem. 😉

      1 Reply Last reply Reply Quote 2
      • B Offline
        BHellman 3rd party vendor
        last edited by

        Thanks for the replies. My issues are currently with the GUI so I don't know if that applies here. This is all from the GUI, so please let me know if that's outside the scope of this post and I can post elsewhere.

        One issue is upon creating a new XOSTOR SR, the packages are installed, however the SR creation fails due to one of the package, sm-rawhba, that needs updating. You have to apply patched through the GUI then reboot the node, or execute "xe-restart-toolstack" on each node. You can then go back and create a new SR, but only after wiping the disks that you originally tried to create the SR on; vgremove and pvremove.

        I'm planning on doing some more testing, please let me know if GUI issues are appropriate to post here.

        ronan-aR 1 Reply Last reply Reply Quote 0
        • ronan-aR Offline
          ronan-a Vates 🪐 XCP-ng Team @BHellman
          last edited by

          @BHellman It's fine to post simple issues in this thread. For complex problems a ticket is probably better. 🙂

          One issue is upon creating a new XOSTOR SR, the packages are installed, however the SR creation fails due to one of the package, sm-rawhba, that needs updating.

          Not totally that, sm-rawhba is added to the list because the UI installs a modified version of sm with LINSTOR support.
          The real issue is that xe-toolstack-restart is not called during the initial setup, a method is missing in our updater plugin to check if a package is present or not, I will add this method for the XOA team. 😉

          1 Reply Last reply Reply Quote 0
          • B Offline
            BHellman 3rd party vendor
            last edited by

            I'm not sure what the expected behavior is but....

            I have xcp1, xcp2, xcp3 as hosts in my XOSTOR pool, using an XOSTOR repository. I had a VM running on xcp2, unplugged the power from it and left it uplugged for about 5 minutes. The VM remained "running" according to XOA, however it wasn't.

            What is the expected behavior when this happens and how do you go about recovering from a temporarily failed/powered off node?

            My expectation was that my vm would move to xcp1 (where there is a replica) and start, then outdate xcp2. I have "auto start" enabled under advanced on the VM.

            L 1 Reply Last reply Reply Quote 0
            • L Offline
              limezest @BHellman
              last edited by

              @BHellman
              "auto start" means that when you power up the cluster or host node that VM will be automatically started.

              I think you're describing high availability, which needs to be enabled at the cluster level. Then you need to define a HA policy for the vm

              ronan-aR 1 Reply Last reply Reply Quote 1
              • ronan-aR Offline
                ronan-a Vates 🪐 XCP-ng Team @limezest
                last edited by

                @limezest Exactly. Auto start feature is only checked during host boot.

                @BHellman To automatically restart a VM in case of failure:

                xe vm-param-set uuid=<VM_UUID> ha-restart-priority=restart order=1 
                xe pool-ha-enable heartbeat-sr-uuids=<SR_UUID> 
                
                B 1 Reply Last reply Reply Quote 0
                • B Offline
                  BHellman 3rd party vendor @ronan-a
                  last edited by

                  @ronan-a @limezest

                  Thank you for the replies 🙂

                  Sorry for all the newb questions - I'm diving into this when time permits. Appreciate the help and understanding.

                  1 Reply Last reply Reply Quote 1
                  • B Offline
                    BHellman 3rd party vendor
                    last edited by

                    I did those commands on xcp1 (pool master) and on the SR that was XOSTOR (linstor) and powered off xcp2. At that point the pool disappeared.

                    Now I'm getting the following on the xcp servers console:

                    Broadcast message from systemd-journald@xcp3 (Thu 2024-02-08 14:03:12 EST):
                    
                    xapi-nbd[5580]: main: Failed to log in via xapi's Unix domain socket in 300.000000 seconds
                    
                    
                    Broadcast message from systemd-journald@xcp3 (Thu 2024-02-08 14:03:12 EST):
                    
                    xapi-nbd[5580]: main: Caught unexpected exception: (Failure
                    
                    
                    Broadcast message from systemd-journald@xcp3 (Thu 2024-02-08 14:03:12 EST):
                    
                    xapi-nbd[5580]: main:   "Failed to log in via xapi's Unix domain socket in 300.000000 seconds")
                    
                    

                    After powering up xcp2 the pool never comes back in the XOA interface.

                    I'm seeing this on
                    xcp1:

                    [14:04 xcp1 ~]# drbdadm status
                    xcp-persistent-database role:Secondary
                      disk:Diskless quorum:no
                      xcp2 connection:Connecting
                      xcp3 connection:Connecting
                    
                    

                    xcp2 and 3

                    [14:10 xcp2 ~]# drbdadm status
                    # No currently configured DRBD found.
                    

                    Seems like I hosed this thing up really good. I assume this broke because XOSTOR isn't a shared disk technically.

                    [14:15 xcp1 /]# xe sr-list
                    The server could not join the liveset because the HA daemon could not access the heartbeat disk.
                    

                    Is HA + XOSTOR something that should work?

                    M olivierlambertO 2 Replies Last reply Reply Quote 0
                    • J Offline
                      Jonathon
                      last edited by Jonathon

                      Hello!

                      I am attempting to update our hosts, starting with the pool controller. But I am getting a message that I wanted to ask about.

                      The following happens when I attempt a yum update

                      --> Processing Dependency: sm-linstor for package: xcp-ng-linstor-1.1-3.xcpng8.2.noarch
                      --> Finished Dependency Resolution
                      Error: Package: xcp-ng-linstor-1.1-3.xcpng8.2.noarch (xcp-ng-updates)
                                 Requires: sm-linstor
                      You could try using --skip-broken to work around the problem
                                 You could try running: rpm -Va --nofiles --nodigest
                      

                      Only reference I am finding is here: https://koji.xcp-ng.org/buildinfo?buildID=3044
                      My best guess is I need to do two updates, the first one skip broken. But wanted to ask to be sure as to not put things in a weird state.

                      Thanks in advance!

                      stormiS 2 Replies Last reply Reply Quote 0
                      • M Offline
                        Midget @BHellman
                        last edited by

                        @BHellman I have the EXACT same errors and scrolling logs now. I made a thread here...

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

                          @BHellman Yes it should. @ronan-a will take a look around when he can 🙂

                          1 Reply Last reply Reply Quote 0
                          • stormiS Offline
                            stormi Vates 🪐 XCP-ng Team @Jonathon
                            last edited by

                            @Jonathon Never use --skip-broken.

                            1 Reply Last reply Reply Quote 0
                            • stormiS Offline
                              stormi Vates 🪐 XCP-ng Team @Jonathon
                              last edited by

                              @Jonathon What's the output of yum repolist?

                              J 1 Reply Last reply Reply Quote 0
                              • J Offline
                                Jonathon @stormi
                                last edited by

                                @stormi said in XOSTOR hyperconvergence preview:

                                yum repolist

                                lol glad I checked then

                                # yum repolist
                                Loaded plugins: fastestmirror
                                Loading mirror speeds from cached hostfile
                                Excluding mirror: updates.xcp-ng.org
                                 * xcp-ng-base: mirrors.xcp-ng.org
                                Excluding mirror: updates.xcp-ng.org
                                 * xcp-ng-linstor: mirrors.xcp-ng.org
                                Excluding mirror: updates.xcp-ng.org
                                 * xcp-ng-updates: mirrors.xcp-ng.org
                                repo id                                                                                                                        repo name                                                                                                                                            status
                                !xcp-ng-base                                                                                                                   XCP-ng Base Repository                                                                                                                               2,161
                                !xcp-ng-linstor                                                                                                                XCP-ng LINSTOR Repository                                                                                                                              142
                                !xcp-ng-updates                                                                                                                XCP-ng Updates Repository                                                                                                                            1,408
                                !zabbix/x86_64                                                                                                                 Zabbix Official Repository - x86_64                                                                                                                     79
                                !zabbix-non-supported/x86_64                                                                                                   Zabbix Official Repository non-supported - x86_64                                                                                                        6
                                repolist: 3,796
                                
                                J 1 Reply Last reply Reply Quote 0
                                • V Offline
                                  vaewyn
                                  last edited by

                                  Are there any rough estimates for timeline on paid support being available? Looking at ditching vmware and my company requires professional support availability. Virtualization I see the availability but I need storage as well that is at least mostly in parity with the vsan I have. Thanks to you all! Love these projects!

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

                                    We are working at full speed to get it available ASAP. There's still some bugs to fix and LINBIT is working on it.

                                    1 Reply Last reply Reply Quote 1
                                    • V Offline
                                      vaewyn
                                      last edited by

                                      With the integration you are doing is there provision to designate racks/sites/datacenters/etc so at some level replications can be kept off hosts in the same physical risk space(s)?

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

                                        XOSTOR works at the pool level. You can have all your hosts in the pool, or only some of them participating to the HCI (eg 4 hosts with disks used for HCI and others just consuming it). Obviously, it means some hosts without the disks will have to read and write "remotely" on the hosts with the disks. But it might be perfectly acceptable 🙂

                                        V 1 Reply Last reply Reply Quote 0
                                        • V Offline
                                          vaewyn @olivierlambert
                                          last edited by

                                          @olivierlambert I've understood that part... what I am wondering is if I have 3 hosts in one data center and 3 hosts in another, and I have asked for redundancy of 3 copies, is there a way to ensure all three copies are never in the same data center all at the same time.

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

                                            So I imagine a very low latency between the 2 DCs? One pool with 6 hosts total and 3 per DC right?

                                            For now, there's no placement preference, we need to discuss with LINBIT about topology.

                                            And if the 2x DCs are far each other, I would advice to get 2x pools and use 2x XOSTOR total

                                            V B 2 Replies Last reply Reply Quote 0
                                            • First post
                                              Last post