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    Migrating VM fails with DUPLICATE_VM error part2

    Scheduled Pinned Locked Moved Xen Orchestra
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    • A Offline
      AndreS @olivierlambert
      last edited by

      @olivierlambert Appreciated. I will go through the fields to see if anything looks odd..

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      • A Offline
        AndreS @olivierlambert
        last edited by

        @olivierlambert Nothing odd that stands out for me when comparing the data.

        Additionally I tried migrating the (most likely) offending vm from the other host and I get the same error.
        Migrated two other (created on xcp-ng) vms but those fail with a VDI_COPY_FAILED but the migration starts properly. Only at the end I get this error.

        vm.migrate
        {
          "vm": "0ab24395-becb-71f4-4f93-066c2d660cff",
          "mapVifsNetworks": {
            "651db47e-129a-7152-f988-cc4408abce0a": "a014b230-2db6-adb4-ba4f-0b1cc07fdcae"
          },
          "migrationNetwork": "a014b230-2db6-adb4-ba4f-0b1cc07fdcae",
          "sr": "270f8f4a-a24c-ced6-99c7-9bc2ba5f5008",
          "targetHost": "3b57d90b-983f-46bb-8f52-4319025d1182"
        }
        {
          "code": 21,
          "data": {
            "objectId": "0ab24395-becb-71f4-4f93-066c2d660cff",
            "code": "VDI_COPY_FAILED"
          },
          "message": "operation failed",
          "name": "XoError",
          "stack": "XoError: operation failed
            at operationFailed (/opt/xo/xo-builds/xen-orchestra-202111061645/packages/xo-common/src/api-errors.js:21:32)
            at file:///opt/xo/xo-builds/xen-orchestra-202111061645/packages/xo-server/src/api/vm.mjs:482:15
            at Object.migrate (file:///opt/xo/xo-builds/xen-orchestra-202111061645/packages/xo-server/src/api/vm.mjs:469:3)
            at Api.callApiMethod (file:///opt/xo/xo-builds/xen-orchestra-202111061645/packages/xo-server/src/xo-mixins/api.mjs:304:20)"
        }
        

        Now I need to figure out what the real issue is.

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        • olivierlambertO Offline
          olivierlambert Vates 🪐 Co-Founder CEO
          last edited by

          Can you also try with xe too? Maybe the error message will be more clear.

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          • A Offline
            AndreS @olivierlambert
            last edited by

            @olivierlambert Life happened, just spent some time working through scenarios.

            Using xe vm-migrate I can move vms from one host to the other (this is across pools) and back. For me this rules out a host level issue.

            When I try to move the vms that won't migrate in both cases I get the error

            Cannot restore this VM because it would create a duplicate
            

            This clearly points at the two vms that were imported from esxi last year.

            Reviewed the output of xe vm-list params=all uuid=<relevant vm uuid> again and finaly noticed that they both have the same mac_seed: value under other-config (MRW):

            other-config (MRW): auto_poweron: true; vgpu_pci: ; base_template_name: Other install media; mac_seed: 5e88eb6a-d680-c47f-a94a-028886971ba4; install-methods: cdrom
            

            and

            other-config (MRW): auto_poweron: true; import_task: OpaqueRef:680ed8f5-22a5-4a4b-af3b-6988f7734441; install-repository: cdrom; vgpu_pci: ; base_template_name: Other install media; mac_seed: 5e88eb6a-d680-c47f-a94a-028886971ba4; install-methods: cdrom
            

            Could that cause a clash/duplicate error?

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            • olivierlambertO Offline
              olivierlambert Vates 🪐 Co-Founder CEO
              last edited by

              Please modify the mac seed and see if it still trigger the error 🙂

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              • A Offline
                AndreS @olivierlambert
                last edited by

                @olivierlambert Thanks. Done that.
                Next stop is

                xe vm-migrate remote-master=172.25.10.11 remote-username=root remote-password=xxxxxx vif:f4b175c2-0082-212c-b9d9-bd616cd83d2c=a014b230-2db6-adb4-ba4f-0b1cc07fdcae vm=Win10vm
                Performing a Storage XenMotion migration. Your VM's VDIs will be migrated with the VM.
                Will migrate to remote host: xen1, using remote network: Pool-wide network associated with eth0. Here is the VDI mapping:
                VDI 4d4a809d-6801-4462-8e52-811882106821 -> SR 270f8f4a-a24c-ced6-99c7-9bc2ba5f5008
                VDI 6a30ca10-a386-4e00-91aa-89c3e5bd43de -> SR 270f8f4a-a24c-ced6-99c7-9bc2ba5f5008
                There were no servers available to complete the specified operation.
                

                Doesn't matter what I set the mac_seed to: empty, just a few characters or change one character. Setting it back to the 'original' value reproduces the earlier error about creating a duplicate so the mac_seed value is making a difference. But there seems to be more.

                I couldn't find anything specific on There were no servers available to complete the specified operation. on the forum, just one hit; someone asking what it means.

                A wider internet search showed some Citrix /Xen related posts; one about a DVD image not being available anymore so I disabled the DVD but that also made no difference. There is more than enough storage available on the receiving SR; more than double what is needed.

                But now it gets interesting. When I try to start the vm again I get this:

                vm.start
                {
                  "id": "afe623be-5451-fd48-3f24-60120e53f5ab",
                  "bypassMacAddressesCheck": false,
                  "force": false
                }
                {
                  "code": "NO_HOSTS_AVAILABLE",
                  "params": [],
                  "call": {
                    "method": "VM.start",
                    "params": [
                      "OpaqueRef:3947721f-7307-4560-aa59-dec8a8e26bfb",
                      false,
                      false
                    ]
                  },
                  "message": "NO_HOSTS_AVAILABLE()",
                  "name": "XapiError",
                  "stack": "XapiError: NO_HOSTS_AVAILABLE()
                    at Function.wrap (/opt/xo/xo-builds/xen-orchestra-202111061645/packages/xen-api/src/_XapiError.js:16:12)
                    at /opt/xo/xo-builds/xen-orchestra-202111061645/packages/xen-api/src/transports/json-rpc.js:41:27
                    at AsyncResource.runInAsyncScope (async_hooks.js:197:9)
                    at cb (/opt/xo/xo-builds/xen-orchestra-202111061645/node_modules/bluebird/js/release/util.js:355:42)
                    at tryCatcher (/opt/xo/xo-builds/xen-orchestra-202111061645/node_modules/bluebird/js/release/util.js:16:23)
                    at Promise._settlePromiseFromHandler (/opt/xo/xo-builds/xen-orchestra-202111061645/node_modules/bluebird/js/release/promise.js:547:31)
                    at Promise._settlePromise (/opt/xo/xo-builds/xen-orchestra-202111061645/node_modules/bluebird/js/release/promise.js:604:18)
                    at Promise._settlePromise0 (/opt/xo/xo-builds/xen-orchestra-202111061645/node_modules/bluebird/js/release/promise.js:649:10)
                    at Promise._settlePromises (/opt/xo/xo-builds/xen-orchestra-202111061645/node_modules/bluebird/js/release/promise.js:729:18)
                    at _drainQueueStep (/opt/xo/xo-builds/xen-orchestra-202111061645/node_modules/bluebird/js/release/async.js:93:12)
                    at _drainQueue (/opt/xo/xo-builds/xen-orchestra-202111061645/node_modules/bluebird/js/release/async.js:86:9)
                    at Async._drainQueues (/opt/xo/xo-builds/xen-orchestra-202111061645/node_modules/bluebird/js/release/async.js:102:5)
                    at Immediate.Async.drainQueues [as _onImmediate] (/opt/xo/xo-builds/xen-orchestra-202111061645/node_modules/bluebird/js/release/async.js:15:14)
                    at processImmediate (internal/timers.js:464:21)
                    at process.topLevelDomainCallback (domain.js:152:15)
                    at process.callbackTrampoline (internal/async_hooks.js:128:24)"
                }
                

                Setting it back to the 'original' mac_seed value does not even allow me to start the vm. I do get the ' duplicate' error on vm migration.

                When I start via xe I get

                xe vm-start vm=Win10vm
                There are no suitable hosts to start this VM on.
                The following table provides per-host reasons for why the VM could not be started:
                
                xen2    : Cannot start here [Not enough free memory]
                
                
                There were no servers available to complete the specified operation.
                

                There is enough free memory (9 Gb available, 6 Gb requested). Even freeing up 15 Gb of memory does not make a diffence. Same errors in XOA and via xe.

                Any other suggestions?

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                • olivierlambertO Offline
                  olivierlambert Vates 🪐 Co-Founder CEO
                  last edited by

                  1. So it seems that MAC SEED was the initial issue?
                  2. Can you display the xe vm-param-list uuid=<VM UUID>?
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                  • A Offline
                    AndreS @olivierlambert
                    last edited by

                    @olivierlambert Here you go

                                             snapshot-time ( RO): 19700101T00:00:00Z
                                             snapshot-info ( RO): 
                                                    parent ( RO): <not in database>
                                                  children ( RO): 
                                         is-control-domain ( RO): false
                                               power-state ( RO): halted
                                             memory-actual ( RO): 6442455040
                                             memory-target ( RO): 0
                                           memory-overhead ( RO): 54525952
                                         memory-static-max ( RW): 6442450944
                                        memory-dynamic-max ( RW): 6442450944
                                        memory-dynamic-min ( RW): 6442450944
                                         memory-static-min ( RW): 6442450944
                                          suspend-VDI-uuid ( RW): <not in database>
                                           suspend-SR-uuid ( RW): <not in database>
                                              VCPUs-params (MRW): 
                                                 VCPUs-max ( RW): 2
                                          VCPUs-at-startup ( RW): 2
                                    actions-after-shutdown ( RW): Destroy
                                      actions-after-reboot ( RW): Restart
                                       actions-after-crash ( RW): Restart
                                             console-uuids (SRO): 
                                                       hvm ( RO): false
                                                  platform (MRW): timeoffset: 3570; device-model: qemu-upstream-compat; nx: true; acpi: 1; apic: true; pae: true; hpet: true; viridian: true
                                        allowed-operations (SRO): changing_NVRAM; changing_dynamic_range; changing_shadow_memory; changing_static_range; make_into_template; migrate_send; destroy; export; start_on; start; clone; copy; snapshot
                                        current-operations (SRO): 
                                        blocked-operations (MRW): 
                                       allowed-VBD-devices (SRO): 2; 4; 5; 6; 7; 8; 9; 10; 11; 12; 13; 14; 15; 16; 17; 18; 19; 20; 21; 22; 23; 24; 25; 26; 27; 28; 29; 30; 31; 32; 33; 34; 35; 36; 37; 38; 39; 40; 41; 42; 43; 44; 45; 46; 47; 48; 49; 50; 51; 52; 53; 54; 55; 56; 57; 58; 59; 60; 61; 62; 63; 64; 65; 66; 67; 68; 69; 70; 71; 72; 73; 74; 75; 76; 77; 78; 79; 80; 81; 82; 83; 84; 85; 86; 87; 88; 89; 90; 91; 92; 93; 94; 95; 96; 97; 98; 99; 100; 101; 102; 103; 104; 105; 106; 107; 108; 109; 110; 111; 112; 113; 114; 115; 116; 117; 118; 119; 120; 121; 122; 123; 124; 125; 126; 127; 128; 129; 130; 131; 132; 133; 134; 135; 136; 137; 138; 139; 140; 141; 142; 143; 144; 145; 146; 147; 148; 149; 150; 151; 152; 153; 154; 155; 156; 157; 158; 159; 160; 161; 162; 163; 164; 165; 166; 167; 168; 169; 170; 171; 172; 173; 174; 175; 176; 177; 178; 179; 180; 181; 182; 183; 184; 185; 186; 187; 188; 189; 190; 191; 192; 193; 194; 195; 196; 197; 198; 199; 200; 201; 202; 203; 204; 205; 206; 207; 208; 209; 210; 211; 212; 213; 214; 215; 216; 217; 218; 219; 220; 221; 222; 223; 224; 225; 226; 227; 228; 229; 230; 231; 232; 233; 234; 235; 236; 237; 238; 239; 240; 241; 242; 243; 244; 245; 246; 247; 248; 249; 250; 251; 252; 253; 254
                                       allowed-VIF-devices (SRO): 1; 2; 3; 4; 5; 6
                                            possible-hosts ( RO): 
                                               domain-type ( RW): hvm
                                       current-domain-type ( RO): unspecified
                                           HVM-boot-policy ( RW): BIOS order
                                           HVM-boot-params (MRW): order: cnd
                                     HVM-shadow-multiplier ( RW): 1.000
                                                 PV-kernel ( RW): 
                                                PV-ramdisk ( RW): 
                                                   PV-args ( RW): 
                                            PV-legacy-args ( RW): 
                                             PV-bootloader ( RW): 
                                        PV-bootloader-args ( RW): 
                                       last-boot-CPU-flags ( RO): vendor: GenuineIntel; features: 1fcbfbff-f7fa3223-2d93fbff-00000423-00000001-000007ab-00000000-00000000-00001000-9c000400-00000000-00000000-00000000-00000000-00000000
                                          last-boot-record ( RO): '{"xen_platform":[1,1],"pv_drivers_detected":true,"pci_power_mgmt":false,"pci_msitranslate":true,"qemu_vifs":[],"qemu_vbds":[],"suspend_memory_bytes":8589934592,"original_profile":"Qemu_upstream_compat","profile":"Qemu_upstream_compat","nested_virt":false,"nomigrate":false,"domain_config":["X86",{"emulation_flags":["X86_EMU_LAPIC","X86_EMU_HPET","X86_EMU_PM","X86_EMU_RTC","X86_EMU_IOAPIC","X86_EMU_PIC","X86_EMU_VGA","X86_EMU_IOMMU","X86_EMU_PIT","X86_EMU_USE_PIRQ"]}],"last_start_time":1603780055.119536,"ty":["HVM",{"firmware":"Bios","qemu_stubdom":false,"qemu_disk_cmdline":false,"boot_order":"cdn","pci_passthrough":false,"pci_emulations":[],"serial":"pty","acpi":true,"video":"Cirrus","video_mib":4,"timeoffset":"3585","shadow_multiplier":1.0,"hap":true}],"build_info":{"has_hard_affinity":false,"priv":["BuildHVM",{"video_mib":4,"shadow_multiplier":1.0}],"vcpus":2,"kernel":"/usr/libexec/xen/boot/hvmloader","memory_target":8388608,"memory_max":8388608},"version":2}'
                                               resident-on ( RO): <not in database>
                                                  affinity ( RW): <not in database>
                                              other-config (MRW): mac_seed: 5e88eb6a-d680-c47f-a94a-028886971ba4; auto_poweron: true; vgpu_pci: ; base_template_name: Other install media; install-methods: cdrom
                                                    dom-id ( RO): -1
                                           recommendations ( RO): <restrictions><restriction field="memory-static-max" max="137438953472" /><restriction field="vcpus-max" max="32" /><restriction property="number-of-vbds" max="255" /><restriction property="number-of-vifs" max="7" /><restriction field="has-vendor-device" value="false" /></restrictions>
                                             xenstore-data (MRW): vm-data/mmio-hole-size: 268435456; vm-data: 
                                ha-always-run ( RW) [DEPRECATED]: false
                                       ha-restart-priority ( RW): 
                                                     blobs ( RO): 
                                                start-time ( RO): 19700101T00:00:00Z
                                              install-time ( RO): 19700101T00:00:00Z
                                              VCPUs-number ( RO): 0
                                         VCPUs-utilisation (MRO): 
                                                os-version (MRO): name: Microsoft Windows 10 Pro|C:\WINDOWS|\Device\Harddisk0\Partition2; distro: windows; major: 6; minor: 2; spmajor: 0; spminor: 0
                                        PV-drivers-version (MRO): major: 0; minor: 0; micro: 0; build: 0
                        PV-drivers-up-to-date ( RO) [DEPRECATED]: true
                                                    memory (MRO): 
                                                     disks (MRO): 
                                                      VBDs (SRO): ac9e1b28-f576-b83d-c7ca-8ce097e3b30e; 9177269c-442b-24be-174e-25ba7ba20846; 3adc01b3-e9a7-42d8-8375-7380ef9c2791
                                                  networks (MRO): 0/ip: 172.25.10.211; 0/ipv4/0: 172.25.10.211
                                       PV-drivers-detected ( RO): true
                                                     other (MRO): feature-static-ip-setting: 1; feature-ts: 1; feature-ts2: 1; feature-xs-batcmd: 1; feature-setcomputername: 1; error: CreateProcessAsUser : 2 failed.; feature-s4: 1; feature-s3: 1; feature-reboot: 1; feature-poweroff: 1; feature-balloon: 1; feature-suspend: 1; has-vendor-device: 0; platform-feature-xs_reset_watches: 1; platform-feature-multiprocessor-suspend: 1; data-ts: 1
                                                      live ( RO): true
                                guest-metrics-last-updated ( RO): 20211114T22:16:45Z
                                       can-use-hotplug-vbd ( RO): unspecified
                                       can-use-hotplug-vif ( RO): true
                                  cooperative ( RO) [DEPRECATED]: true
                                                      tags (SRW): 
                                                 appliance ( RW): <not in database>
                                         snapshot-schedule ( RW): <not in database>
                                          is-vmss-snapshot ( RO): false
                                               start-delay ( RW): 0
                                            shutdown-delay ( RW): 0
                                                     order ( RW): 0
                                                   version ( RO): 0
                                             generation-id ( RO): 2464683622889442979:3979947479560168523
                                 hardware-platform-version ( RO): 0
                                         has-vendor-device ( RW): false
                                           requires-reboot ( RO): false
                                           reference-label ( RO): 
                                              bios-strings (MRO): bios-vendor: Xen; bios-version: ; system-manufacturer: Xen; system-product-name: HVM domU; system-version: ; system-serial-number: ; baseboard-manufacturer: ; baseboard-product-name: ; baseboard-version: ; baseboard-serial-number: ; baseboard-asset-tag: ; baseboard-location-in-chassis: ; enclosure-asset-tag: ; hp-rombios: ; oem-1: Xen; oem-2: MS_VM_CERT/SHA1/bdbeb6e0a816d43fa6d3fe8aaef04c2bad9d3e3d
                    
                    
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                    • olivierlambertO Offline
                      olivierlambert Vates 🪐 Co-Founder CEO
                      last edited by

                      Okay and on the host in question, can you put a xe host-param-list?

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

                        @olivierlambert

                        uid ( RO)                                  : 03688598-ec14-4492-ab46-5424dcee8e9f
                                                    name-label ( RW): xen2
                                              name-description ( RW): Dell T20
                                            allowed-operations (SRO): VM.migrate; provision; VM.resume; evacuate; VM.start
                                            current-operations (SRO): 
                                                       enabled ( RO): true
                                                       display ( RO): enabled
                                             API-version-major ( RO): 2
                                             API-version-minor ( RO): 16
                                            API-version-vendor ( RO): XenSource
                             API-version-vendor-implementation (MRO): 
                                                       logging (MRW): 
                                         suspend-image-sr-uuid ( RW): a610de27-9c64-ee06-a8fd-4e1d1c7768ab
                                            crash-dump-sr-uuid ( RW): a610de27-9c64-ee06-a8fd-4e1d1c7768ab
                                              software-version (MRO): product_version: 8.2.0; product_version_text: 8.2; product_version_text_short: 8.2; platform_name: XCP; platform_version: 3.2.0; product_brand: XCP-ng; build_number: release/stockholm/master/7; hostname: localhost; date: 2021-05-20; dbv: 0.0.1; xapi: 1.20; xen: 4.13.1-9.12.1; linux: 4.19.0+1; xencenter_min: 2.16; xencenter_max: 2.16; network_backend: openvswitch; db_schema: 5.602
                                                  capabilities (SRO): xen-3.0-x86_64; xen-3.0-x86_32p; hvm-3.0-x86_32; hvm-3.0-x86_32p; hvm-3.0-x86_64; 
                                                  other-config (MRW): agent_start_time: 1636223713.; boot_time: 1632048708.; rpm_patch_installation_time: 1632048285.199; iscsi_iqn: iqn.2020-07.com.example:67db4a3c
                                                      cpu_info (MRO): cpu_count: 4; socket_count: 1; vendor: GenuineIntel; speed: 3192.841; modelname: Intel(R) Xeon(R) CPU E3-1225 v3 @ 3.20GHz; family: 6; model: 60; stepping: 3; flags: fpu de tsc msr pae mce cx8 apic sep mca cmov pat clflush acpi mmx fxsr sse sse2 ss ht syscall nx rdtscp lm constant_tsc rep_good nopl nonstop_tsc cpuid pn
                        -00000000-00000000-00000000-00000000; features_hvm: 1fcbfbff-f7fa3223-2d93fbff-00000423-00000001-000007ab-00000000-00000000-00001000-9c000400-00000000-00000000-00000000-00000000-00000000; features_hvm_host: 1fcbfbff-f7fa3223-2d93fbff-00000423-00000001-000007ab-00000000-00000000-00001000-9c000400-00000000-00000000-00000000-00000000-00000000; features_pv_host: 1fc9cbf5-f6f83203-2991cbf5-00000023-00000001-00000329-00000000-00000000-00001000-8c000400-00000000-00000000-00000000-00000000-00000000
                                                  chipset-info (MRO): iommu: true
                                                      hostname ( RO): xen2
                                                       address ( RO): 172.25.10.12
                                         supported-bootloaders (SRO): pygrub; eliloader
                                                         blobs ( RO): 
                                               memory-overhead ( RO): 621060096
                                                  memory-total ( RO): 25673416704
                                                   memory-free ( RO): 16197537792
                                          memory-free-computed ( RO): 3970736128
                                             host-metrics-live ( RO): true
                                          patches (SRO) [DEPRECATED]: 
                                                       updates (SRO): 
                                                 ha-statefiles ( RO): 
                                              ha-network-peers ( RO): 
                                            external-auth-type ( RO): 
                                    external-auth-service-name ( RO): 
                                   external-auth-configuration (MRO): 
                                                       edition ( RO): xcp-ng
                                                license-server (MRO): address: localhost; port: 27000
                                                 power-on-mode ( RO): 
                                               power-on-config (MRO): 
                                                local-cache-sr ( RO): <not in database>
                                                          tags (SRW): 
                                                    ssl-legacy ( RW): false
                                            guest_VCPUs_params (MRW): 
                            virtual-hardware-platform-versions (SRO): 0; 1; 2
                                           control-domain-uuid ( RO): 66c5258b-6429-4658-b31c-06ccd0f1896d
                                                  resident-vms (SRO): 90ee64f7-9a07-fd83-033a-10183b98a9a6; c318a4e3-a14d-01ca-b2c4-df11c1f9d9b8; 66c5258b-6429-4658-b31c-06ccd0f1896d; 49c86f89-eabb-bd68-dc79-387434bdb899
                                      updates-requiring-reboot (SRO): 
                                                      features (SRO): 
                                                     iscsi_iqn ( RW): iqn.2020-07.com.example:67db4a3c
                                                  multipathing ( RW): false
                        
                        
                        
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                        • olivierlambertO Offline
                          olivierlambert Vates 🪐 Co-Founder CEO
                          last edited by olivierlambert

                          That's weird, you have a big diff between memory free and free computed. Ie you don't have enough free memory (computed) to boot the VM right now.

                          edit: maybe you have dynamic memory for some VMs, using more than you think.

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                          • A Offline
                            AndreS @olivierlambert
                            last edited by AndreS

                            @olivierlambert
                            51b6c2e4-b91f-4a2e-a1b7-da9af3b41149-image.png

                            Dynamic, yes, but total is still very low. Everywhere I look memory usage is just under 9 Gb including 2.2 Gb for xcp-ng. Host has 24 Gb. Should I just reboot to have a clean start?

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                            • olivierlambertO Offline
                              olivierlambert Vates 🪐 Co-Founder CEO
                              last edited by

                              Let's try a reboot, with no VMs up, except the one you want to boot.

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

                                @olivierlambert
                                I stopped all other VMs and then I was able to start the Win10vm again.

                                Memory stettings for this VM
                                Static: 6 GiB/6 GiB
                                Dynamic: 6 GiB/6 GiB

                                I'll do a reboot anyway because I have never had this before; normally I have 4-5 vms running and a few Gb of memory free. With the dynamice memory settings. I can only guess that the migrations used memory that was not freed up.

                                I will reboot both hosts, just to be sure; check the mac_seed and set it to something different and try again.

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                                • olivierlambertO Offline
                                  olivierlambert Vates 🪐 Co-Founder CEO
                                  last edited by

                                  Thanks for your feedback 🙂

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                                  • A Offline
                                    AndreS @Guest
                                    last edited by AndreS

                                    @olivierlambert Rebooted both hosts, everything came up as expected.
                                    Stopped the Win10vm vm, changed the mac_seed and started the migration.
                                    Initially it looked ok but it finished with an error:

                                    xe vm-migrate remote-master=172.25.10.11 remote-username=root remote-password=xxxxxx vif:f4b175c2-0082-212c-b9d9-bd616cd83d2c=a014b230-2db6-adb4-ba4f-0b1cc07fdcae vm=Win10vm
                                    Performing a Storage XenMotion migration. Your VM's VDIs will be migrated with the VM.
                                    Will migrate to remote host: xen1, using remote network: Pool-wide network associated with eth0. Here is the VDI mapping:
                                    VDI 4d4a809d-6801-4462-8e52-811882106821 -> SR 270f8f4a-a24c-ced6-99c7-9bc2ba5f5008
                                    VDI 6a30ca10-a386-4e00-91aa-89c3e5bd43de -> SR 270f8f4a-a24c-ced6-99c7-9bc2ba5f5008
                                    The VDI copy action has failed
                                    <extra>: End_of_file
                                    

                                    Via XO

                                    vm.migrate
                                    {
                                      "vm": "afe623be-5451-fd48-3f24-60120e53f5ab",
                                      "mapVifsNetworks": {
                                        "f4b175c2-0082-212c-b9d9-bd616cd83d2c": "a014b230-2db6-adb4-ba4f-0b1cc07fdcae"
                                      },
                                      "migrationNetwork": "a014b230-2db6-adb4-ba4f-0b1cc07fdcae",
                                      "sr": "270f8f4a-a24c-ced6-99c7-9bc2ba5f5008",
                                      "targetHost": "3b57d90b-983f-46bb-8f52-4319025d1182"
                                    }
                                    {
                                      "code": 21,
                                      "data": {
                                        "objectId": "afe623be-5451-fd48-3f24-60120e53f5ab",
                                        "code": "VDI_COPY_FAILED"
                                      },
                                      "message": "operation failed",
                                      "name": "XoError",
                                      "stack": "XoError: operation failed
                                        at operationFailed (/opt/xo/xo-builds/xen-orchestra-202111061638/packages/xo-common/src/api-errors.js:21:32)
                                        at file:///opt/xo/xo-builds/xen-orchestra-202111061638/packages/xo-server/src/api/vm.mjs:482:15
                                        at Object.migrate (file:///opt/xo/xo-builds/xen-orchestra-202111061638/packages/xo-server/src/api/vm.mjs:469:3)
                                        at Api.callApiMethod (file:///opt/xo/xo-builds/xen-orchestra-202111061638/packages/xo-server/src/xo-mixins/api.mjs:304:20)"
                                    }
                                    

                                    I have however succesfully migrated the 'other' vm that was imported (and had the duplicate mac_seed) . So both are now running on the same host.

                                    So next to the mac_seed there seems to be something wrong with the imported windows vm; it starts horribly slow indeed.

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                                    • A Offline
                                      AndreS @AndreS
                                      last edited by

                                      OK, the underlying disk has problems. I found the kernel.log and it is filling up with read errors. That part is clear now.

                                      So what lead me to try and migrate the vm (slow boot/response) uncovered a mac_seed duplication and we fixed that. Not sure if this was already fixed in the code last year.

                                      On to this prblem; could I have seen the disk issue somewhere in the XO interface? In the logs I only see the higher level issue of failed migrations. It's a learning experience anyway; maybe a mirrored disk could be an answer. Need to investigate.

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                                      • olivierlambertO Offline
                                        olivierlambert Vates 🪐 Co-Founder CEO
                                        last edited by

                                        Interesting to discover that mac_seed could cause this cryptic issue 🤔

                                        XO doesn't have any knowledge on the "state" of the virtual disk, there's no API to expose that (if we can even imagine a way to know that the virtual disk got a problem in the first place)

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                                        • A Offline
                                          AndreS @olivierlambert
                                          last edited by

                                          @olivierlambert Indeed. Learned a lot this week. Thanks for walking me through this.

                                          Should I register anything for mac_seed duplication that is obviously caused by the export from esxi/import into xcp-ng? The MAC address duplciation issue was fixed earlier if I am not mistaken.

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                                          • olivierlambertO Offline
                                            olivierlambert Vates 🪐 Co-Founder CEO
                                            last edited by

                                            I'd like to see if we can reproduce this. If yes, then we need to be careful on this parameter on OVA import, indeed. Ping @Darkbeldin so we can discuss on how to reproduce the problem first.

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