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    Delta backup footer1 !== footer2 error

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    Xen Orchestra
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    • A
      Alexander 0
      last edited by

      Since I upgraded XOA to 5.56.2 I have started to see this error on some of y daily backups.
      Restarting backup job seems help but it is huge problem when every morning I see backup errors.
      There is full log of one such backup:

      {
  "data": {
    "mode": "delta",
    "reportWhen": "always"
  },
  "id": "1618426800008",
  "jobId": "9f8c13d8-cf2b-4f55-aadc-788c3fc43254",
  "jobName": "DC-2_Daily_backup",
  "message": "backup",
  "scheduleId": "6b7d1739-11b4-4c8f-a1cc-ceaf64fc40a3",
  "start": 1618426800008,
  "status": "failure",
  "infos": [
    {
      "data": {
        "vms": [
          "928a1a84-a72d-4648-2781-96296bf28459"
        ]
      },
      "message": "vms"
    }
  ],
  "tasks": [
    {
      "data": {
        "type": "VM",
        "id": "928a1a84-a72d-4648-2781-96296bf28459"
      },
      "id": "1618426804302",
      "message": "backup VM",
      "start": 1618426804302,
      "status": "failure",
      "tasks": [
        {
          "id": "1618426807376",
          "message": "snapshot",
          "start": 1618426807376,
          "status": "success",
          "end": 1618426812653,
          "result": "1c74aaec-9b64-8719-8da7-633382e0938c"
        },
        {
          "data": {
            "id": "df7361d2-509b-46fe-bf12-d63fc6d93524",
            "isFull": false,
            "type": "remote"
          },
          "id": "1618426812653:0",
          "message": "export",
          "start": 1618426812653,
          "status": "failure",
          "tasks": [
            {
              "id": "1618426812767",
              "message": "transfer",
              "start": 1618426812767,
              "status": "failure",
              "end": 1618426903073,
              "result": {
                "generatedMessage": false,
                "code": "ERR_ASSERTION",
                "actual": false,
                "expected": true,
                "operator": "==",
                "message": "footer1 !== footer2",
                "name": "AssertionError",
                "stack": "AssertionError [ERR_ASSERTION]: footer1 !== footer2\n    at Vhd.readHeaderAndFooter (/opt/xen-orchestra/packages/vhd-lib/dist/vhd.js:118:27)\n    at async checkVhd (/opt/xen-orchestra/@xen-orchestra/backups/_checkVhd.js:4:3)\n    at async RemoteAdapter.outputStream (/opt/xen-orchestra/@xen-orchestra/backups/RemoteAdapter.js:517:7)\n    at async /opt/xen-orchestra/@xen-orchestra/backups/_DeltaBackupWriter.js:196:11\n    at async Promise.all (index 0)\n    at async /opt/xen-orchestra/@xen-orchestra/backups/_DeltaBackupWriter.js:171:7"
              }
            }
          ],
          "end": 1618426903074,
          "result": {
            "generatedMessage": false,
            "code": "ERR_ASSERTION",
            "actual": false,
            "expected": true,
            "operator": "==",
            "message": "footer1 !== footer2",
            "name": "AssertionError",
            "stack": "AssertionError [ERR_ASSERTION]: footer1 !== footer2\n    at Vhd.readHeaderAndFooter (/opt/xen-orchestra/packages/vhd-lib/dist/vhd.js:118:27)\n    at async checkVhd (/opt/xen-orchestra/@xen-orchestra/backups/_checkVhd.js:4:3)\n    at async RemoteAdapter.outputStream (/opt/xen-orchestra/@xen-orchestra/backups/RemoteAdapter.js:517:7)\n    at async /opt/xen-orchestra/@xen-orchestra/backups/_DeltaBackupWriter.js:196:11\n    at async Promise.all (index 0)\n    at async /opt/xen-orchestra/@xen-orchestra/backups/_DeltaBackupWriter.js:171:7"
          }
        }
      ],
      "end": 1618426904454,
      "result": {
        "message": "task has already ended",
        "name": "Error",
        "stack": "Error: task has already ended\n    at Task.logAfterEnd (/opt/xen-orchestra/@xen-orchestra/backups/Task.js:5:9)\n    at Task.onLog (/opt/xen-orchestra/@xen-orchestra/backups/Task.js:59:37)\n    at Task.#log (/opt/xen-orchestra/@xen-orchestra/backups/Task.js:139:16)\n    at new Task (/opt/xen-orchestra/@xen-orchestra/backups/Task.js:75:14)\n    at Function.run (/opt/xen-orchestra/@xen-orchestra/backups/Task.js:33:12)\n    at DeltaBackupWriter._deleteOldEntries (/opt/xen-orchestra/@xen-orchestra/backups/_DeltaBackupWriter.js:115:17)\n    at DeltaBackupWriter.cleanup (/opt/xen-orchestra/@xen-orchestra/backups/_DeltaBackupWriter.js:110:18)\n    at /opt/xen-orchestra/@xen-orchestra/backups/Task.js:129:32\n    at /opt/xen-orchestra/@xen-orchestra/backups/Task.js:103:24\n    at Zone.run (/opt/xen-orchestra/node_modules/node-zone/index.js:80:23)"
      }
    }
  ],
  "end": 1618426904454
}
      1 Reply Last reply Reply Quote 0
      • olivierlambertO
        olivierlambert Vates 🪐 Co-Founder CEO
        last edited by

        If you have XOA, please open a support ticket 🙂

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

          @olivierlambert I'm using community edition.
          That's why I'm writing problem here.

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

            Oh okay, so you are not using XOA then 🙂 Just "XO" (XOA stands for Xen Orchestra virtual Appliance), the thing Vates distribute as turnkey + support 🙂

            So you don't have any specific version, as usual in that case, be sure to run on the latest master commit.

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

              @olivierlambert I updated it Yesterday.

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

                Good. So you have a corrupted VHD in your backup (transfer interrupted at some point).

                I think @badrAZ is working on something that would automatically deal with it. You can remove your VM snapshot so it will recreate a full.

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

                  @olivierlambert I have remade backup when I saw the problem.
                  It went without problems.
                  I will monitor this further and report if it occurs on other VM's

                  1 Reply Last reply Reply Quote 1
                  • A
                    Alexander 0
                    last edited by

                    Two more VM's with error this night.

                    {
  "data": {
    "mode": "delta",
    "reportWhen": "always"
  },
  "id": "1618522200008",
  "jobId": "c7f542ad-07f2-45c9-9002-bf7169d90a14",
  "jobName": "discourse-BUp",
  "message": "backup",
  "scheduleId": "9dbda6ce-0118-41b6-b357-dcf080318ec1",
  "start": 1618522200008,
  "status": "failure",
  "infos": [
    {
      "data": {
        "vms": [
          "a1a3832c-b16a-a85e-2fdd-ae585087f629"
        ]
      },
      "message": "vms"
    }
  ],
  "tasks": [
    {
      "data": {
        "type": "VM",
        "id": "a1a3832c-b16a-a85e-2fdd-ae585087f629"
      },
      "id": "1618522200629",
      "message": "backup VM",
      "start": 1618522200629,
      "status": "failure",
      "tasks": [
        {
          "id": "1618522205326",
          "message": "snapshot",
          "start": 1618522205326,
          "status": "success",
          "end": 1618522210762,
          "result": "be5287a0-a956-81bc-87fa-e840be406cd4"
        },
        {
          "data": {
            "id": "df7361d2-509b-46fe-bf12-d63fc6d93524",
            "isFull": false,
            "type": "remote"
          },
          "id": "1618522210762:0",
          "message": "export",
          "start": 1618522210762,
          "status": "failure",
          "tasks": [
            {
              "id": "1618522210931",
              "message": "transfer",
              "start": 1618522210931,
              "status": "failure",
              "end": 1618522235395,
              "result": {
                "generatedMessage": false,
                "code": "ERR_ASSERTION",
                "actual": false,
                "expected": true,
                "operator": "==",
                "message": "footer1 !== footer2",
                "name": "AssertionError",
                "stack": "AssertionError [ERR_ASSERTION]: footer1 !== footer2\n    at Vhd.readHeaderAndFooter (/opt/xen-orchestra/packages/vhd-lib/dist/vhd.js:118:27)\n    at async checkVhd (/opt/xen-orchestra/@xen-orchestra/backups/_checkVhd.js:4:3)\n    at async RemoteAdapter.outputStream (/opt/xen-orchestra/@xen-orchestra/backups/RemoteAdapter.js:517:7)\n    at async /opt/xen-orchestra/@xen-orchestra/backups/_DeltaBackupWriter.js:196:11\n    at async Promise.all (index 0)\n    at async /opt/xen-orchestra/@xen-orchestra/backups/_DeltaBackupWriter.js:171:7"
              }
            }
          ],
          "end": 1618522235396,
          "result": {
            "generatedMessage": false,
            "code": "ERR_ASSERTION",
            "actual": false,
            "expected": true,
            "operator": "==",
            "message": "footer1 !== footer2",
            "name": "AssertionError",
            "stack": "AssertionError [ERR_ASSERTION]: footer1 !== footer2\n    at Vhd.readHeaderAndFooter (/opt/xen-orchestra/packages/vhd-lib/dist/vhd.js:118:27)\n    at async checkVhd (/opt/xen-orchestra/@xen-orchestra/backups/_checkVhd.js:4:3)\n    at async RemoteAdapter.outputStream (/opt/xen-orchestra/@xen-orchestra/backups/RemoteAdapter.js:517:7)\n    at async /opt/xen-orchestra/@xen-orchestra/backups/_DeltaBackupWriter.js:196:11\n    at async Promise.all (index 0)\n    at async /opt/xen-orchestra/@xen-orchestra/backups/_DeltaBackupWriter.js:171:7"
          }
        }
      ],
      "end": 1618522237312,
      "result": {
        "message": "task has already ended",
        "name": "Error",
        "stack": "Error: task has already ended\n    at Task.logAfterEnd (/opt/xen-orchestra/@xen-orchestra/backups/Task.js:5:9)\n    at Task.onLog (/opt/xen-orchestra/@xen-orchestra/backups/Task.js:59:37)\n    at Task.#log (/opt/xen-orchestra/@xen-orchestra/backups/Task.js:139:16)\n    at new Task (/opt/xen-orchestra/@xen-orchestra/backups/Task.js:75:14)\n    at Function.run (/opt/xen-orchestra/@xen-orchestra/backups/Task.js:33:12)\n    at DeltaBackupWriter._deleteOldEntries (/opt/xen-orchestra/@xen-orchestra/backups/_DeltaBackupWriter.js:115:17)\n    at DeltaBackupWriter.cleanup (/opt/xen-orchestra/@xen-orchestra/backups/_DeltaBackupWriter.js:110:18)\n    at /opt/xen-orchestra/@xen-orchestra/backups/Task.js:129:32\n    at /opt/xen-orchestra/@xen-orchestra/backups/Task.js:103:24\n    at Zone.run (/opt/xen-orchestra/node_modules/node-zone/index.js:80:23)"
      }
    }
  ],
  "end": 1618522237313
}

                    {
  "data": {
    "mode": "delta",
    "reportWhen": "always"
  },
  "id": "1618502400009",
  "jobId": "2cdd42b8-8961-400d-9a6c-4c10b008c010",
  "jobName": "devart_jenkins",
  "message": "backup",
  "scheduleId": "18f81e07-5ed9-4b02-a707-bd3c5100861d",
  "start": 1618502400009,
  "status": "failure",
  "infos": [
    {
      "data": {
        "vms": [
          "3581d5ca-2c13-31f1-d552-7382aa343804"
        ]
      },
      "message": "vms"
    }
  ],
  "tasks": [
    {
      "data": {
        "type": "VM",
        "id": "3581d5ca-2c13-31f1-d552-7382aa343804"
      },
      "id": "1618502400600",
      "message": "backup VM",
      "start": 1618502400600,
      "status": "failure",
      "tasks": [
        {
          "id": "1618502401839",
          "message": "snapshot",
          "start": 1618502401839,
          "status": "success",
          "end": 1618502407288,
          "result": "8734319d-91da-88a0-c81b-5ce9a67edefb"
        },
        {
          "data": {
            "id": "df7361d2-509b-46fe-bf12-d63fc6d93524",
            "isFull": false,
            "type": "remote"
          },
          "id": "1618502407288:0",
          "message": "export",
          "start": 1618502407288,
          "status": "failure",
          "tasks": [
            {
              "id": "1618502407325",
              "message": "transfer",
              "start": 1618502407325,
              "status": "failure",
              "end": 1618502425566,
              "result": {
                "generatedMessage": false,
                "code": "ERR_ASSERTION",
                "actual": false,
                "expected": true,
                "operator": "==",
                "message": "footer1 !== footer2",
                "name": "AssertionError",
                "stack": "AssertionError [ERR_ASSERTION]: footer1 !== footer2\n    at Vhd.readHeaderAndFooter (/opt/xen-orchestra/packages/vhd-lib/dist/vhd.js:118:27)\n    at async checkVhd (/opt/xen-orchestra/@xen-orchestra/backups/_checkVhd.js:4:3)\n    at async RemoteAdapter.outputStream (/opt/xen-orchestra/@xen-orchestra/backups/RemoteAdapter.js:517:7)\n    at async /opt/xen-orchestra/@xen-orchestra/backups/_DeltaBackupWriter.js:196:11\n    at async Promise.all (index 0)\n    at async /opt/xen-orchestra/@xen-orchestra/backups/_DeltaBackupWriter.js:171:7"
              }
            }
          ],
          "end": 1618502425566,
          "result": {
            "generatedMessage": false,
            "code": "ERR_ASSERTION",
            "actual": false,
            "expected": true,
            "operator": "==",
            "message": "footer1 !== footer2",
            "name": "AssertionError",
            "stack": "AssertionError [ERR_ASSERTION]: footer1 !== footer2\n    at Vhd.readHeaderAndFooter (/opt/xen-orchestra/packages/vhd-lib/dist/vhd.js:118:27)\n    at async checkVhd (/opt/xen-orchestra/@xen-orchestra/backups/_checkVhd.js:4:3)\n    at async RemoteAdapter.outputStream (/opt/xen-orchestra/@xen-orchestra/backups/RemoteAdapter.js:517:7)\n    at async /opt/xen-orchestra/@xen-orchestra/backups/_DeltaBackupWriter.js:196:11\n    at async Promise.all (index 0)\n    at async /opt/xen-orchestra/@xen-orchestra/backups/_DeltaBackupWriter.js:171:7"
          }
        }
      ],
      "end": 1618502426837,
      "result": {
        "message": "task has already ended",
        "name": "Error",
        "stack": "Error: task has already ended\n    at Task.logAfterEnd (/opt/xen-orchestra/@xen-orchestra/backups/Task.js:5:9)\n    at Task.onLog (/opt/xen-orchestra/@xen-orchestra/backups/Task.js:59:37)\n    at Task.#log (/opt/xen-orchestra/@xen-orchestra/backups/Task.js:139:16)\n    at new Task (/opt/xen-orchestra/@xen-orchestra/backups/Task.js:75:14)\n    at Function.run (/opt/xen-orchestra/@xen-orchestra/backups/Task.js:33:12)\n    at DeltaBackupWriter._deleteOldEntries (/opt/xen-orchestra/@xen-orchestra/backups/_DeltaBackupWriter.js:115:17)\n    at DeltaBackupWriter.cleanup (/opt/xen-orchestra/@xen-orchestra/backups/_DeltaBackupWriter.js:110:18)\n    at /opt/xen-orchestra/@xen-orchestra/backups/Task.js:129:32\n    at /opt/xen-orchestra/@xen-orchestra/backups/Task.js:103:24\n    at Zone.run (/opt/xen-orchestra/node_modules/node-zone/index.js:80:23)"
      }
    }
  ],
  "end": 1618502426839
}
                    A 1 Reply Last reply Reply Quote 0
                    • A
                      Alexander 0 @Alexander 0
                      last edited by

                      @olivierlambert Yesterday I deleted snapshots of delta backups and it made full backups successful. Today I see errors again with incremental.

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

                        Please rebuild everything on master and try again. It's hard to investigate when we do not control entirely the environment.

                        A 2 Replies Last reply Reply Quote 0
                        • A
                          Alexander 0 @olivierlambert
                          last edited by

                          @olivierlambert I have rebuild xen orchestra with last master.
                          Now I recreating backup job. Will see if there will be same issues.

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

                            @olivierlambert and today I have first failed backup with same error.

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

                              To rule out an XO problem (but something specific on your setup), please try with an XOA on latest 🙂 If you need another trial round for that, let me know I'll unlock it!

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

                                @olivierlambert I see today's commit with changes to merge process.
                                May this help?

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

                                  Feel free to try and report then 🙂 thanks!

                                  A 3 Replies Last reply Reply Quote 0
                                  • A
                                    Alexander 0 @olivierlambert
                                    last edited by

                                    @olivierlambert I've set up XOA trial. Will see if problem appear.

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

                                      @olivierlambert
                                      I got the same error on XOA appliance.

                                      {
  "data": {
    "mode": "delta",
    "reportWhen": "always"
  },
  "id": "1620250200011",
  "jobId": "f44dc556-32ba-4bbc-8568-06d5d26b6835",
  "jobName": "discourse-BUp",
  "message": "backup",
  "scheduleId": "bb7b53e4-ca32-48f8-afbb-1ce36ddc84f2",
  "start": 1620250200011,
  "status": "failure",
  "infos": [
    {
      "data": {
        "vms": [
          "a1a3832c-b16a-a85e-2fdd-ae585087f629"
        ]
      },
      "message": "vms"
    }
  ],
  "tasks": [
    {
      "data": {
        "type": "VM",
        "id": "a1a3832c-b16a-a85e-2fdd-ae585087f629"
      },
      "id": "1620250200710",
      "message": "backup VM",
      "start": 1620250200710,
      "status": "failure",
      "tasks": [
        {
          "id": "1620250205577",
          "message": "snapshot",
          "start": 1620250205577,
          "status": "success",
          "end": 1620250210934,
          "result": "569701f3-2665-32c1-ef1c-2b8b1377d88b"
        },
        {
          "data": {
            "id": "84dd7240-14e8-4233-befa-f95e7d62e74e",
            "isFull": false,
            "type": "remote"
          },
          "id": "1620250210935",
          "message": "export",
          "start": 1620250210935,
          "status": "failure",
          "tasks": [
            {
              "id": "1620250211055",
              "message": "transfer",
              "start": 1620250211055,
              "status": "failure",
              "end": 1620250232442,
              "result": {
                "generatedMessage": false,
                "code": "ERR_ASSERTION",
                "actual": false,
                "expected": true,
                "operator": "==",
                "message": "footer1 !== footer2",
                "name": "AssertionError",
                "stack": "AssertionError [ERR_ASSERTION]: footer1 !== footer2\n    at Vhd.readHeaderAndFooter (/usr/local/lib/node_modules/xo-server/node_modules/vhd-lib/dist/vhd.js:118:27)\n    at async checkVhd (/usr/local/lib/node_modules/xo-server/node_modules/@xen-orchestra/backups/_checkVhd.js:4:3)\n    at async RemoteAdapter.outputStream (/usr/local/lib/node_modules/xo-server/node_modules/@xen-orchestra/backups/RemoteAdapter.js:517:7)\n    at async /usr/local/lib/node_modules/xo-server/node_modules/@xen-orchestra/backups/_DeltaBackupWriter.js:196:11\n    at async Promise.all (index 0)\n    at async /usr/local/lib/node_modules/xo-server/node_modules/@xen-orchestra/backups/_DeltaBackupWriter.js:171:7"
              }
            }
          ],
          "end": 1620250232442,
          "result": {
            "generatedMessage": false,
            "code": "ERR_ASSERTION",
            "actual": false,
            "expected": true,
            "operator": "==",
            "message": "footer1 !== footer2",
            "name": "AssertionError",
            "stack": "AssertionError [ERR_ASSERTION]: footer1 !== footer2\n    at Vhd.readHeaderAndFooter (/usr/local/lib/node_modules/xo-server/node_modules/vhd-lib/dist/vhd.js:118:27)\n    at async checkVhd (/usr/local/lib/node_modules/xo-server/node_modules/@xen-orchestra/backups/_checkVhd.js:4:3)\n    at async RemoteAdapter.outputStream (/usr/local/lib/node_modules/xo-server/node_modules/@xen-orchestra/backups/RemoteAdapter.js:517:7)\n    at async /usr/local/lib/node_modules/xo-server/node_modules/@xen-orchestra/backups/_DeltaBackupWriter.js:196:11\n    at async Promise.all (index 0)\n    at async /usr/local/lib/node_modules/xo-server/node_modules/@xen-orchestra/backups/_DeltaBackupWriter.js:171:7"
          }
        }
      ],
      "end": 1620250233919,
      "result": {
        "message": "task has already ended",
        "name": "Error",
        "stack": "Error: task has already ended\n    at Task.logAfterEnd (/usr/local/lib/node_modules/xo-server/node_modules/@xen-orchestra/backups/Task.js:5:9)\n    at Task.onLog (/usr/local/lib/node_modules/xo-server/node_modules/@xen-orchestra/backups/Task.js:59:37)\n    at Task.#log (/usr/local/lib/node_modules/xo-server/node_modules/@xen-orchestra/backups/Task.js:139:16)\n    at new Task (/usr/local/lib/node_modules/xo-server/node_modules/@xen-orchestra/backups/Task.js:75:14)\n    at Function.run (/usr/local/lib/node_modules/xo-server/node_modules/@xen-orchestra/backups/Task.js:33:12)\n    at DeltaBackupWriter._deleteOldEntries (/usr/local/lib/node_modules/xo-server/node_modules/@xen-orchestra/backups/_DeltaBackupWriter.js:115:17)\n    at DeltaBackupWriter.cleanup (/usr/local/lib/node_modules/xo-server/node_modules/@xen-orchestra/backups/_DeltaBackupWriter.js:110:18)\n    at /usr/local/lib/node_modules/xo-server/node_modules/@xen-orchestra/backups/Task.js:129:32\n    at /usr/local/lib/node_modules/xo-server/node_modules/@xen-orchestra/backups/Task.js:103:24\n    at Zone.run (/usr/local/lib/node_modules/xo-server/node_modules/node-zone/index.js:80:23)"
      }
    }
  ],
  "end": 1620250233919
}

                                      I have created a bug ticket with a link to this topic.

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

                                        @olivierlambert problem was fixed. Thank you for help.

                                        M 1 Reply Last reply Reply Quote 1
                                        • M
                                          MrNaz @Alexander 0
                                          last edited by

                                          @alexander-0
                                          I am having this exact same issue. Can you tell me what you did to fix it? Or was it fixed when you updated to the latest version?

                                          A 1 Reply Last reply Reply Quote 0
                                          • A
                                            Alexander 0 @MrNaz
                                            last edited by Alexander 0

                                            @mrnaz the fixed it in version 5.58.1. So update helped.

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