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    XCP-ng 8.3 betas and RCs feedback 🚀

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    • A Offline
      Andrew Top contributor @john.c
      last edited by

      @john-c No UEFI on HP DL Gen8.... it too bad because they work just fine. HP DL Gen9 servers support UEFI boot. By the time XCP 9.x rolls around it will be time to trash the G8 machines anyway. But lack of BIOS boot will limit cheap lab/home machines...

      1 Reply Last reply Reply Quote 0
      • G Offline
        Greg_E @john.c
        last edited by

        @john-c

        HP says Gen9 has UEFI, and probably those are now in the $200 shipped range with 40 threads and 128gb of RAM like the gen8 were when I bought them.

        I'll have to upgrade at some point, probably going to be a mini system next time.

        As an FYI, I think Vsphere8 products require UEFI, I saw a notice in the instructions about this, haven't installed yet. Yes testing the competition and mostly for experience migrating off of VMware.

        J 1 Reply Last reply Reply Quote 0
        • J Offline
          john.c @Greg_E
          last edited by john.c

          @Greg_E said in XCP-ng 8.3 betas and RCs feedback 🚀:

          @john-c

          HP says Gen9 has UEFI, and probably those are now in the $200 shipped range with 40 threads and 128gb of RAM like the gen8 were when I bought them.

          I'll have to upgrade at some point, probably going to be a mini system next time.

          As an FYI, I think Vsphere8 products require UEFI, I saw a notice in the instructions about this, haven't installed yet. Yes testing the competition and mostly for experience migrating off of VMware.

          Bargain Hardware carries a HPE DL360 Gen9 for only £80, a HPE DL380 Gen9 for £80 and a HPE DL560 Gen9 for £237. Check them out! https://www.bargainhardware.co.uk

          I used them for my Home Lab's Dell PowerEdge servers, they are really good. I haven't had problems with them or their products if I do they are very good at helping out. Also are a good source for access to components and upgrades which are hard to get!

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          • N Offline
            nomad @stormi
            last edited by

            @Greg_E I saw a similar thing and dealt with it thusly:

            Upgrade the master in BIOS to preserve the configuration
            Upgrade second (only other, in this case) host in the pool using UEFI boot
            Migrate 'master' status to the second host
            re-install the first host with UEFI, re-join it to the pool.

            Before doing this take careful note of the xe pool-enable-tls-verification mentioned in the release notes. You won't be able to join the cleanly reinstalled host without it.

            Typing 'master' so many times has me wishing we had a better word for the pool coordinator.

            G N 2 Replies Last reply Reply Quote 0
            • G Offline
              Greg_E @nomad
              last edited by

              @nomad

              Thanks. I will eventually need to do this on my production system, thankfully it is new hardware and should be good until I retire (next guy's problem).

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              • Tristis OrisT Offline
                Tristis Oris Top contributor
                last edited by Tristis Oris

                not sure is it XO or Xen issue.
                8.3 release. i changed pool master and now it unavailable.

                master
                befc6f89-ffc1-4328-baa5-53b4f38b5bf3-image.png

                hosts
                f4edd025-e5f4-4e66-9fc4-6098eff0da0c-image.png

                Oct 11 12:12:00 rpsrv-cas-caph SM: [420301] lock: opening lock file /var/lock/sm/5cceb02b-bda5-85d1-10c1-b5dfe4fbf66a/sr
                Oct 11 12:12:00 rpsrv-cas-caph SM: [420301] Setting LVM_DEVICE to /dev/disk/by-scsid/36e43ec6100f01acf292713f000000006
                Oct 11 12:12:00 rpsrv-cas-caph SM: [420301] lock: opening lock file /var/lock/sm/845ef0aa-7561-9253-b9fa-0b862c145c54/sr
                Oct 11 12:12:00 rpsrv-cas-caph SM: [420301] LVMCache created for VG_XenStorage-845ef0aa-7561-9253-b9fa-0b862c145c54
                Oct 11 12:12:00 rpsrv-cas-caph fairlock[3895]: /run/fairlock/devicemapper acquired
                Oct 11 12:12:00 rpsrv-cas-caph fairlock[3895]: /run/fairlock/devicemapper sent '420301 - 77059.294148651hz#006��^?'
                Oct 11 12:12:00 rpsrv-cas-caph SM: [420301] ['/sbin/vgs', '--readonly', 'VG_XenStorage-845ef0aa-7561-9253-b9fa-0b862c145c54']
                Oct 11 12:12:00 rpsrv-cas-caph SM: [420301]   pread SUCCESS
                Oct 11 12:12:00 rpsrv-cas-caph fairlock[3895]: /run/fairlock/devicemapper released
                Oct 11 12:12:00 rpsrv-cas-caph SM: [420301] Entering _checkMetadataVolume
                Oct 11 12:12:00 rpsrv-cas-caph SM: [420301] LVMCache: will initialize now
                Oct 11 12:12:00 rpsrv-cas-caph SM: [420301] LVMCache: refreshing
                Oct 11 12:12:00 rpsrv-cas-caph fairlock[3895]: /run/fairlock/devicemapper acquired
                Oct 11 12:12:00 rpsrv-cas-caph fairlock[3895]: /run/fairlock/devicemapper sent '420301 - 77059.464449994hz#006��^?'
                Oct 11 12:12:00 rpsrv-cas-caph SM: [420301] ['/sbin/lvs', '--noheadings', '--units', 'b', '-o', '+lv_tags', '/dev/VG_XenStorage-845ef0aa-7561-9253-b9fa-0b862c145c54']
                Oct 11 12:12:00 rpsrv-cas-caph SM: [420301]   pread SUCCESS
                Oct 11 12:12:00 rpsrv-cas-caph fairlock[3895]: /run/fairlock/devicemapper released
                Oct 11 12:12:00 rpsrv-cas-caph SM: [420301] Targets 1 and iscsi_sessions 1
                Oct 11 12:12:00 rpsrv-cas-caph SM: [420301] lock: closed /var/lock/sm/5cceb02b-bda5-85d1-10c1-b5dfe4fbf66a/sr
                Oct 11 12:12:00 rpsrv-cas-caph SM: [420301] lock: closed /var/lock/sm/845ef0aa-7561-9253-b9fa-0b862c145c54/sr
                Oct 11 12:22:19 rpsrv-cas-caph SM: [423642] Raising exception [150, Failed to initialize XMLRPC connection]
                Oct 11 12:22:19 rpsrv-cas-caph SM: [423642] Unable to open local XAPI session
                
                stormiS yannY 2 Replies Last reply Reply Quote 0
                • stormiS Offline
                  stormi Vates 🪐 XCP-ng Team @Tristis Oris
                  last edited by

                  @Tristis-Oris

                  1. Is that on the released version of XCP-ng 8.3?
                  2. What steps did you follow to change the pool master and why? Was it in the middle of the pool upgrade?
                  3. check xensource.log around the time of the XAPI startup.
                  Tristis OrisT 1 Reply Last reply Reply Quote 0
                  • Tristis OrisT Offline
                    Tristis Oris Top contributor @stormi
                    last edited by

                    @stormi

                    1. release version.
                    2. fresh pool installation. no tasks, just master change via XO.
                    $
                    Oct 11 13:26:52 rpsrv-cas-navi xcp-rrdd: [ info||7 ||rrdd_main] GC live_words = 1213142
                    Oct 11 13:26:52 rpsrv-cas-navi xcp-rrdd: [ info||7 ||rrdd_main] GC heap_words = 1772032
                    Oct 11 13:26:52 rpsrv-cas-navi xcp-rrdd: [ info||7 ||rrdd_main] GC free_words = 558699
                    Oct 11 13:29:38 rpsrv-cas-navi xapi: [debug||0 |bringing up management interface D:56aeb415b10f|stunnel] client cert verification 172.29.1.153:443: SNI=pool path=/etc/stun$
                    Oct 11 13:29:38 rpsrv-cas-navi xapi: [debug||0 |bringing up management interface D:56aeb415b10f|master_connection] stunnel: stunnel start\x0A
                    Oct 11 13:29:38 rpsrv-cas-navi xapi: [debug||0 |bringing up management interface D:56aeb415b10f|stunnel] Started a client (pid:45316): -> 172.29.1.153:443
                    Oct 11 13:29:38 rpsrv-cas-navi xapi: [ info||0 |bringing up management interface D:56aeb415b10f|master_connection] stunnel disconnected fd_closed=true proc_quit=false
                    Oct 11 13:29:38 rpsrv-cas-navi xapi: [error||0 |bringing up management interface D:56aeb415b10f|master_connection] Caught Xapi_database.Master_connection.Goto_handler
                    Oct 11 13:29:38 rpsrv-cas-navi xapi: [debug||0 |bringing up management interface D:56aeb415b10f|master_connection] Sleeping 256.000000 seconds before retrying master conne$
                    Oct 11 13:29:52 rpsrv-cas-navi xcp-rrdd: [ info||7 ||rrdd_main] GC live_words = 854843
                    Oct 11 13:29:52 rpsrv-cas-navi xcp-rrdd: [ info||7 ||rrdd_main] GC heap_words = 880128
                    Oct 11 13:29:52 rpsrv-cas-navi xcp-rrdd: [ info||7 ||rrdd_main] GC free_words = 25284
                    Oct 11 13:32:52 rpsrv-cas-navi xcp-rrdd: [ info||7 ||rrdd_main] GC live_words = 1571266
                    Oct 11 13:32:52 rpsrv-cas-navi xcp-rrdd: [ info||7 ||rrdd_main] GC heap_words = 1772032
                    Oct 11 13:32:52 rpsrv-cas-navi xcp-rrdd: [ info||7 ||rrdd_main] GC free_words = 200761
                    Oct 11 13:33:54 rpsrv-cas-navi xapi: [debug||0 |bringing up management interface D:56aeb415b10f|stunnel] client cert verification 172.29.1.153:443: SNI=pool path=/etc/stun$
                    Oct 11 13:33:54 rpsrv-cas-navi xapi: [debug||0 |bringing up management interface D:56aeb415b10f|master_connection] stunnel: stunnel start\x0A
                    Oct 11 13:33:54 rpsrv-cas-navi xapi: [debug||0 |bringing up management interface D:56aeb415b10f|stunnel] Started a client (pid:46379): -> 172.29.1.153:443
                    Oct 11 13:33:54 rpsrv-cas-navi xapi: [ info||0 |bringing up management interface D:56aeb415b10f|master_connection] stunnel disconnected fd_closed=true proc_quit=false
                    Oct 11 13:33:54 rpsrv-cas-navi xapi: [error||0 |bringing up management interface D:56aeb415b10f|master_connection] Caught Xapi_database.Master_connection.Goto_handler
                    Oct 11 13:33:54 rpsrv-cas-navi xapi: [debug||0 |bringing up management interface D:56aeb415b10f|master_connection] Sleeping 256.000000 seconds before retrying master conne$
                    Oct 11 13:35:52 rpsrv-cas-navi xcp-rrdd: [ info||7 ||rrdd_main] GC live_words = 935099
                    Oct 11 13:35:52 rpsrv-cas-navi xcp-rrdd: [ info||7 ||rrdd_main] GC heap_words = 1012224
                    Oct 11 13:35:52 rpsrv-cas-navi xcp-rrdd: [ info||7 ||rrdd_main] GC free_words = 77123
                    Oct 11 13:38:10 rpsrv-cas-navi xapi: [debug||0 |bringing up management interface D:56aeb415b10f|stunnel] client cert verification 172.29.1.153:443: SNI=pool path=/etc/stun$
                    Oct 11 13:38:10 rpsrv-cas-navi xapi: [debug||0 |bringing up management interface D:56aeb415b10f|master_connection] stunnel: stunnel start\x0A
                    Oct 11 13:38:10 rpsrv-cas-navi xapi: [debug||0 |bringing up management interface D:56aeb415b10f|stunnel] Started a client (pid:47395): -> 172.29.1.153:443
                    Oct 11 13:38:10 rpsrv-cas-navi xapi: [ info||0 |bringing up management interface D:56aeb415b10f|master_connection] stunnel disconnected fd_closed=true proc_quit=false
                    Oct 11 13:38:10 rpsrv-cas-navi xapi: [error||0 |bringing up management interface D:56aeb415b10f|master_connection] Caught Xapi_database.Master_connection.Goto_handler
                    Oct 11 13:38:10 rpsrv-cas-navi xapi: [debug||0 |bringing up management interface D:56aeb415b10f|master_connection] Sleeping 256.000000 seconds before retrying master conne$
                    Oct 11 13:38:52 rpsrv-cas-navi xcp-rrdd: [ info||7 ||rrdd_main] GC live_words = 1213031
                    Oct 11 13:38:52 rpsrv-cas-navi xcp-rrdd: [ info||7 ||rrdd_main] GC heap_words = 1772032
                    Oct 11 13:38:52 rpsrv-cas-navi xcp-rrdd: [ info||7 ||rrdd_main] GC free_words = 558790
                    
                    Tristis OrisT 1 Reply Last reply Reply Quote 0
                    • Tristis OrisT Offline
                      Tristis Oris Top contributor @Tristis Oris
                      last edited by Tristis Oris

                      @Tristis-Oris i tried to remove host from pool or change master, but can't execute even xe host-list with endless timeout

                      done with

                      xe pool-emergency-transition-to-master
                      xe pool-recover-slaves
                      

                      all vms at dead master counts as running, so i can't run them again.

                      and can't forget host "code": "HOST_HAS_RESIDENT_VMS",

                      upd
                      need to reset vms with
                      xe vm-reset-powerstate uuid=*** --force then forget host.

                      1 Reply Last reply Reply Quote 0
                      • yannY Offline
                        yann Vates 🪐 XCP-ng Team @Tristis Oris
                        last edited by

                        @Tristis-Oris is the xapi daemon still running? daemon.log and xensource.log around the time you changed the master could give more insight?

                        Tristis OrisT 1 Reply Last reply Reply Quote 0
                        • Tristis OrisT Offline
                          Tristis Oris Top contributor @yann
                          last edited by

                          @yann

                          Oct 11 16:05:51 rpsrv-cas-caph xapi-nbd[16958]: main: Failed to log in via xapi's Unix domain socket: Unix.Unix_error(Unix.ECONNREFUSED, "connect", ""); retrying in 4.0000$
                          Oct 11 16:05:55 rpsrv-cas-caph xapi-nbd[16958]: Caught: Unix.Unix_error(Unix.ECONNREFUSED, "connect", "")
                          Oct 11 16:05:55 rpsrv-cas-caph xapi-nbd[16958]: main: Failed to log in via xapi's Unix domain socket: Unix.Unix_error(Unix.ECONNREFUSED, "connect", ""); retrying in 4.0000$
                          Oct 11 16:05:59 rpsrv-cas-caph xapi-nbd[16958]: Caught: Unix.Unix_error(Unix.ECONNREFUSED, "connect", "")
                          Oct 11 16:05:59 rpsrv-cas-caph xapi-nbd[16958]: main: Failed to log in via xapi's Unix domain socket: Unix.Unix_error(Unix.ECONNREFUSED, "connect", ""); retrying in 4.0000$
                          Oct 11 16:06:03 rpsrv-cas-caph xapi-nbd[16958]: Caught: Unix.Unix_error(Unix.ECONNREFUSED, "connect", "")
                          Oct 11 16:06:03 rpsrv-cas-caph xapi-nbd[16958]: main: Failed to log in via xapi's Unix domain socket: Unix.Unix_error(Unix.ECONNREFUSED, "connect", ""); retrying in 4.0000$
                          Oct 11 16:06:07 rpsrv-cas-caph xapi-nbd[16958]: Caught: Unix.Unix_error(Unix.ECONNREFUSED, "connect", "")
                          Oct 11 16:06:07 rpsrv-cas-caph xapi-nbd[16958]: main: Failed to log in via xapi's Unix domain socket: Unix.Unix_error(Unix.ECONNREFUSED, "connect", ""); retrying in 4.0000$
                          Oct 11 16:06:11 rpsrv-cas-caph systemd[1]: Created slice User Slice of root.
                          Oct 11 16:06:11 rpsrv-cas-caph systemd[1]: Starting User Slice of root.
                          Oct 11 16:06:11 rpsrv-cas-caph systemd[1]: Started Session c9 of user root.
                          Oct 11 16:06:11 rpsrv-cas-caph systemd[1]: Starting Session c9 of user root.
                          Oct 11 16:06:11 rpsrv-cas-caph xapi-nbd[16958]: Caught: Unix.Unix_error(Unix.ECONNREFUSED, "connect", "")
                          Oct 11 16:06:11 rpsrv-cas-caph xapi-nbd[16958]: main: Failed to log in via xapi's Unix domain socket: Unix.Unix_error(Unix.ECONNREFUSED, "connect", ""); retrying in 4.0000$
                          Oct 11 16:06:15 rpsrv-cas-caph xapi-nbd[16958]: Caught: Unix.Unix_error(Unix.ECONNREFUSED, "connect", "")
                          Oct 11 16:06:15 rpsrv-cas-caph xapi-nbd[16958]: main: Failed to log in via xapi's Unix domain socket: Unix.Unix_error(Unix.ECONNREFUSED, "connect", ""); retrying in 4.0000$
                          Oct 11 16:06:19 rpsrv-cas-caph xapi-nbd[16958]: Caught: Unix.Unix_error(Unix.ECONNREFUSED, "connect", "")
                          Oct 11 16:06:19 rpsrv-cas-caph xapi-nbd[16958]: main: Failed to log in via xapi's Unix domain socket: Unix.Unix_error(Unix.ECONNREFUSED, "connect", ""); retrying in 4.0000$
                          
                          Oct 11 16:02:49 rpsrv-cas-caph xapi: [error||0 |server_init D:b092c49f7d0d|backtrace] 14/20 xapi Called from file ocaml/libs/xapi-stdext/lib/xapi-stdext-pervasives/pervasi$
                          Oct 11 16:02:49 rpsrv-cas-caph xapi: [error||0 |server_init D:b092c49f7d0d|backtrace] 15/20 xapi Called from file ocaml/libs/xapi-stdext/lib/xapi-stdext-pervasives/pervasi$
                          Oct 11 16:02:49 rpsrv-cas-caph xapi: [error||0 |server_init D:b092c49f7d0d|backtrace] 16/20 xapi Called from file ocaml/xapi/server_helpers.ml, line 67
                          Oct 11 16:02:49 rpsrv-cas-caph xapi: [error||0 |server_init D:b092c49f7d0d|backtrace] 17/20 xapi Called from file ocaml/xapi/server_helpers.ml, line 94
                          Oct 11 16:02:49 rpsrv-cas-caph xapi: [error||0 |server_init D:b092c49f7d0d|backtrace] 18/20 xapi Called from file ocaml/libs/xapi-stdext/lib/xapi-stdext-pervasives/pervasi$
                          Oct 11 16:02:49 rpsrv-cas-caph xapi: [error||0 |server_init D:b092c49f7d0d|backtrace] 19/20 xapi Called from file ocaml/libs/xapi-stdext/lib/xapi-stdext-pervasives/pervasi$
                          Oct 11 16:02:49 rpsrv-cas-caph xapi: [error||0 |server_init D:b092c49f7d0d|backtrace] 20/20 xapi Called from file ocaml/libs/log/debug.ml, line 250
                          Oct 11 16:02:49 rpsrv-cas-caph xapi: [error||0 |server_init D:b092c49f7d0d|backtrace]
                          Oct 11 16:02:49 rpsrv-cas-caph xapi: [ warn||0 |server_init D:b092c49f7d0d|startup] task [Synchronising host configuration files] exception: Pool_role.This_host_is_broken
                          Oct 11 16:02:49 rpsrv-cas-caph xapi: [error||0 ||backtrace] server_init D:b092c49f7d0d failed with exception Pool_role.This_host_is_broken
                          Oct 11 16:02:49 rpsrv-cas-caph xapi: [error||0 ||backtrace] Raised Pool_role.This_host_is_broken
                          Oct 11 16:02:49 rpsrv-cas-caph xapi: [error||0 ||backtrace] 1/15 xapi Raised at file ocaml/libs/log/debug.ml, line 267
                          Oct 11 16:02:49 rpsrv-cas-caph xapi: [error||0 ||backtrace] 2/15 xapi Called from file ocaml/libs/xapi-stdext/lib/xapi-stdext-pervasives/pervasiveext.ml, line 24
                          Oct 11 16:02:49 rpsrv-cas-caph xapi: [error||0 ||backtrace] 3/15 xapi Called from file ocaml/libs/xapi-stdext/lib/xapi-stdext-pervasives/pervasiveext.ml, line 39
                          Oct 11 16:02:49 rpsrv-cas-caph xapi: [error||0 ||backtrace] 4/15 xapi Called from file ocaml/xapi/server_helpers.ml, line 186
                          Oct 11 16:02:49 rpsrv-cas-caph xapi: [error||0 ||backtrace] 5/15 xapi Called from file ocaml/xapi/startup.ml, line 95
                          Oct 11 16:02:49 rpsrv-cas-caph xapi: [error||0 ||backtrace] 6/15 xapi Called from file ocaml/xapi/startup.ml, line 103
                          Oct 11 16:02:49 rpsrv-cas-caph xapi: [error||0 ||backtrace] 7/15 xapi Called from file list.ml, line 110
                          Oct 11 16:02:49 rpsrv-cas-caph xapi: [error||0 ||backtrace] 8/15 xapi Called from file ocaml/libs/xapi-stdext/lib/xapi-stdext-pervasives/pervasiveext.ml, line 24
                          Oct 11 16:02:49 rpsrv-cas-caph xapi: [error||0 ||backtrace] 9/15 xapi Called from file ocaml/libs/xapi-stdext/lib/xapi-stdext-pervasives/pervasiveext.ml, line 39
                          Oct 11 16:02:49 rpsrv-cas-caph xapi: [error||0 ||backtrace] 10/15 xapi Called from file ocaml/xapi/xapi.ml, line 1081
                          Oct 11 16:02:49 rpsrv-cas-caph xapi: [error||0 ||backtrace] 11/15 xapi Called from file ocaml/xapi/server_helpers.ml, line 67
                          Oct 11 16:02:49 rpsrv-cas-caph xapi: [error||0 ||backtrace] 12/15 xapi Called from file ocaml/xapi/server_helpers.ml, line 94
                          Oct 11 16:02:49 rpsrv-cas-caph xapi: [error||0 ||backtrace] 13/15 xapi Called from file ocaml/libs/xapi-stdext/lib/xapi-stdext-pervasives/pervasiveext.ml, line 24
                          Oct 11 16:02:49 rpsrv-cas-caph xapi: [error||0 ||backtrace] 14/15 xapi Called from file ocaml/libs/xapi-stdext/lib/xapi-stdext-pervasives/pervasiveext.ml, line 39
                          Oct 11 16:02:49 rpsrv-cas-caph xapi: [error||0 ||backtrace] 15/15 xapi Called from file ocaml/libs/log/debug.ml, line 250
                          Oct 11 16:02:49 rpsrv-cas-caph xapi: [error||0 ||backtrace]
                          Oct 11 16:02:49 rpsrv-cas-caph xapi: [debug||0 ||xapi] xapi top-level caught exception: INTERNAL_ERROR: [ Pool_role.This_host_is_broken ]
                          Oct 11 16:02:49 rpsrv-cas-caph xapi: [error||0 ||backtrace] Raised Pool_role.This_host_is_broken
                          Oct 11 16:02:49 rpsrv-cas-caph xapi: [error||0 ||backtrace] 1/1 xapi Raised at file (Thread 0 has no backtrace table. Was with_backtraces called?, line 0
                          Oct 11 16:02:49 rpsrv-cas-caph xapi: [error||0 ||backtrace]
                          Oct 11 16:04:12 rpsrv-cas-caph xcp-rrdd: [ info||7 ||rrdd_main] GC live_words = 743602
                          Oct 11 16:04:12 rpsrv-cas-caph xcp-rrdd: [ info||7 ||rrdd_main] GC heap_words = 1795584
                          Oct 11 16:04:12 rpsrv-cas-caph xcp-rrdd: [ info||7 ||rrdd_main] GC free_words = 1051903
                          
                          yannY 1 Reply Last reply Reply Quote 0
                          • Tristis OrisT Offline
                            Tristis Oris Top contributor
                            last edited by

                            also with two 8.3 pools, i have tons of logs everywhere.
                            that for last 1 hour.

                            98070b0a-93ce-47a4-8e58-7355231dd8e3-image.png

                            1 Reply Last reply Reply Quote 0
                            • yannY Offline
                              yann Vates 🪐 XCP-ng Team @Tristis Oris
                              last edited by

                              @Tristis-Oris Pool_role.This_host_is_broken is a bit scary, and more logs will be needed to understand how it got there. I'm trying to follow the same procedure as you to request the right lines - how exactly did you perform the master change?

                              Tristis OrisT 1 Reply Last reply Reply Quote 0
                              • Tristis OrisT Offline
                                Tristis Oris Top contributor @yann
                                last edited by Tristis Oris

                                @yann pool>advanced>master.
                                Fresh xen installation, wait some time after joining last host, then changed master. Balancer disabled, no updates, few VMs runing on all hosts.

                                only one thing, master change don't work at 1st attempt - just nothing happens. Looks like task been canceled , so i repeat it again after some time.

                                i don't think it totaly broken, maybe something happens at same time. but never got that issue before.

                                yannY 1 Reply Last reply Reply Quote 0
                                • yannY Offline
                                  yann Vates 🪐 XCP-ng Team @Tristis Oris
                                  last edited by

                                  @Tristis-Oris said in XCP-ng 8.3 betas and RCs feedback 🚀:

                                  then changed master

                                  Could you please detail that part a bit more? I understand you used XO, but which screen and which action?

                                  Tristis OrisT 1 Reply Last reply Reply Quote 0
                                  • Tristis OrisT Offline
                                    Tristis Oris Top contributor @yann
                                    last edited by

                                    @yann 3a255a6e-39f2-4610-8b71-bccc72688268-image.png

                                    yannY 1 Reply Last reply Reply Quote 0
                                    • N Offline
                                      nomad @nomad
                                      last edited by

                                      @Greg_E I forgot to mention a potentially important step just before the reimage from BIOS -> UEFI.

                                      After you've drained the host disconnect it from the pool.

                                      so:
                                      reimage all hosts in whatever mode they're in
                                      migrate all VMs from the target to be changed to UEFI
                                      disconnect said target from the pool
                                      reimage target with UEFI boot
                                      reconnect target to the pool

                                      nomad

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                                      • yannY Offline
                                        yann Vates 🪐 XCP-ng Team @Tristis Oris
                                        last edited by yann

                                        @Tristis-Oris thanks!

                                        I realize one thing is not clear to me: is the "unreachable master" in your situation the one you switched to, or the original master? And how many hosts in total are in this pool when you launch this operation?

                                        The logs we'll need to analyze will be the xensource.log from the first occurrence of designate_new_master on both old and new master, until the time of that exception.

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                                        • Tristis OrisT Offline
                                          Tristis Oris Top contributor @yann
                                          last edited by

                                          @yann new one.

                                          new part1 https://pastebin.com/ij0B7KHy
                                          new part2 https://pastebin.com/0tQyvesY
                                          old https://pastebin.com/dvAkEEbY

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                                          • Tristis OrisT Offline
                                            Tristis Oris Top contributor
                                            last edited by Tristis Oris

                                            on 8.3 pool more and more VMs became attached to Control Domain. Backups fail due VDI_IN_USE.

                                            can't unplug vdi:
                                            xe vbd-list vm-uuid=***
                                            xe vbd-unplug uuid=***
                                            The server failed to handle your request, due to an internal error. The given message may give details useful for debugging the problem.
                                            message: Expected 0 or 1 VDI with datapath, had 5

                                            can't migrate to 8.2 pool due incompatible versions.

                                            and already got coalesce on VM without backup.

                                            upd
                                            removed all stuck vdi, but sr coalesce won't move.

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