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    Error on Delta Backup - cannot read property "length" of undefined

    Scheduled Pinned Locked Moved Xen Orchestra
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    • M Offline
      mbt
      last edited by

      I can confirm having the same issue on two XO instances since upgrading to 5.78.2 / 5.80.0

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

        Only master makes sense 🙂 There's no "release" concept on the sources. Please update to latest master commit, recreate a job and report if you still have the problem 👍

        M 1 Reply Last reply Reply Quote 0
        • M Offline
          mbt @olivierlambert
          last edited by mbt

          @olivierlambert Hi Olivier,
          I updated both instances, recreated the jobs and while backups on one instance now work again, on the other they still fail:

          {
            "data": {
              "mode": "delta",
              "reportWhen": "failure"
            },
            "id": "1617829260018",
            "jobId": "72cb10c2-9949-4b9c-9618-33a2de5b0f79",
            "jobName": "customer-weekdays",
            "message": "backup",
            "scheduleId": "8333dbe9-6525-4f4f-a2da-cc6304254e96",
            "start": 1617829260018,
            "status": "failure",
            "infos": [
              {
                "data": {
                  "vms": [
                    "adbe367b-e33e-66f7-863c-e21ea8fa301a",
                    "3837691a-c7c2-3ba9-143f-8afd0eb14f94",
                    "cbee81b4-afb8-2773-a92a-dd4b3f83651f",
                    "16dd84d4-2455-c293-2529-6311a98ecd46",
                    "03037a27-bc51-7cfc-ad64-4146992fc95a",
                    "324aa303-4404-20c1-c8f7-686ace47fd3f",
                    "5544f33e-5fd9-12e1-ee65-f5849bd7f442",
                    "d649555a-c134-fe17-aa68-d49b5ba50edf"
                  ]
                },
                "message": "vms"
              }
            ],
            "tasks": [
              {
                "data": {
                  "type": "VM",
                  "id": "adbe367b-e33e-66f7-863c-e21ea8fa301a"
                },
                "id": "1617829261498:0",
                "message": "backup VM",
                "start": 1617829261498,
                "status": "failure",
                "tasks": [
                  {
                    "id": "1617829282666",
                    "message": "snapshot",
                    "start": 1617829282666,
                    "status": "success",
                    "end": 1617829289768,
                    "result": "4815149b-0fb3-8cf3-8ec0-e32d5f3432fc"
                  },
                  {
                    "id": "1617829289768:0",
                    "message": "merge",
                    "start": 1617829289768,
                    "status": "failure",
                    "end": 1617829289771,
                    "result": {
                      "message": "Cannot read property 'length' of undefined",
                      "name": "TypeError",
                      "stack": "TypeError: Cannot read property 'length' of undefined\n    at /opt/xen-orchestra/@xen-orchestra/backups/_DeltaBackupWriter.js:114:31\n    at Zone.run (/opt/xen-orchestra/node_modules/node-zone/index.js:80:23)\n    at /opt/xen-orchestra/node_modules/node-zone/index.js:89:19\n    at Function.fromFunction (/opt/xen-orchestra/@xen-orchestra/backups/_syncThenable.js:20:27)\n    at SyncThenable.fulfilledThen [as then] (/opt/xen-orchestra/@xen-orchestra/backups/_syncThenable.js:2:50)\n    at TaskLogger.run (/opt/xen-orchestra/@xen-orchestra/backups/Task.js:77:10)\n    at Object.run (/opt/xen-orchestra/@xen-orchestra/backups/Task.js:157:17)\n    at DeltaBackupWriter._deleteOldEntries (/opt/xen-orchestra/@xen-orchestra/backups/_DeltaBackupWriter.js:108:17)\n    at Array.<anonymous> (/opt/xen-orchestra/@xen-orchestra/backups/_VmBackup.js:150:70)\n    at Function.from (<anonymous>)"
                    }
                  }
                ],
                "end": 1617829291965,
                "result": {
                  "message": "Cannot read property 'length' of undefined",
                  "name": "TypeError",
                  "stack": "TypeError: Cannot read property 'length' of undefined\n    at /opt/xen-orchestra/@xen-orchestra/backups/_DeltaBackupWriter.js:114:31\n    at Zone.run (/opt/xen-orchestra/node_modules/node-zone/index.js:80:23)\n    at /opt/xen-orchestra/node_modules/node-zone/index.js:89:19\n    at Function.fromFunction (/opt/xen-orchestra/@xen-orchestra/backups/_syncThenable.js:20:27)\n    at SyncThenable.fulfilledThen [as then] (/opt/xen-orchestra/@xen-orchestra/backups/_syncThenable.js:2:50)\n    at TaskLogger.run (/opt/xen-orchestra/@xen-orchestra/backups/Task.js:77:10)\n    at Object.run (/opt/xen-orchestra/@xen-orchestra/backups/Task.js:157:17)\n    at DeltaBackupWriter._deleteOldEntries (/opt/xen-orchestra/@xen-orchestra/backups/_DeltaBackupWriter.js:108:17)\n    at Array.<anonymous> (/opt/xen-orchestra/@xen-orchestra/backups/_VmBackup.js:150:70)\n    at Function.from (<anonymous>)"
                }
              },
              {
                "data": {
                  "type": "VM",
                  "id": "3837691a-c7c2-3ba9-143f-8afd0eb14f94"
                },
                "id": "1617829291966",
                "message": "backup VM",
                "start": 1617829291966,
                "status": "failure",
                "tasks": [
                  {
                    "id": "1617829292001",
                    "message": "snapshot",
                    "start": 1617829292001,
                    "status": "success",
                    "end": 1617829299739,
                    "result": "e095c928-92c3-c085-1ea0-70584e5300e1"
                  },
                  {
                    "id": "1617829299739:0",
                    "message": "merge",
                    "start": 1617829299739,
                    "status": "failure",
                    "end": 1617829299739,
                    "result": {
                      "message": "Cannot read property 'length' of undefined",
                      "name": "TypeError",
                      "stack": "TypeError: Cannot read property 'length' of undefined\n    at /opt/xen-orchestra/@xen-orchestra/backups/_DeltaBackupWriter.js:114:31\n    at Zone.run (/opt/xen-orchestra/node_modules/node-zone/index.js:80:23)\n    at /opt/xen-orchestra/node_modules/node-zone/index.js:89:19\n    at Function.fromFunction (/opt/xen-orchestra/@xen-orchestra/backups/_syncThenable.js:20:27)\n    at SyncThenable.fulfilledThen [as then] (/opt/xen-orchestra/@xen-orchestra/backups/_syncThenable.js:2:50)\n    at TaskLogger.run (/opt/xen-orchestra/@xen-orchestra/backups/Task.js:77:10)\n    at Object.run (/opt/xen-orchestra/@xen-orchestra/backups/Task.js:157:17)\n    at DeltaBackupWriter._deleteOldEntries (/opt/xen-orchestra/@xen-orchestra/backups/_DeltaBackupWriter.js:108:17)\n    at Array.<anonymous> (/opt/xen-orchestra/@xen-orchestra/backups/_VmBackup.js:150:70)\n    at Function.from (<anonymous>)"
                    }
                  }
                ],
                "end": 1617829301116,
                "result": {
                  "message": "Cannot read property 'length' of undefined",
                  "name": "TypeError",
                  "stack": "TypeError: Cannot read property 'length' of undefined\n    at /opt/xen-orchestra/@xen-orchestra/backups/_DeltaBackupWriter.js:114:31\n    at Zone.run (/opt/xen-orchestra/node_modules/node-zone/index.js:80:23)\n    at /opt/xen-orchestra/node_modules/node-zone/index.js:89:19\n    at Function.fromFunction (/opt/xen-orchestra/@xen-orchestra/backups/_syncThenable.js:20:27)\n    at SyncThenable.fulfilledThen [as then] (/opt/xen-orchestra/@xen-orchestra/backups/_syncThenable.js:2:50)\n    at TaskLogger.run (/opt/xen-orchestra/@xen-orchestra/backups/Task.js:77:10)\n    at Object.run (/opt/xen-orchestra/@xen-orchestra/backups/Task.js:157:17)\n    at DeltaBackupWriter._deleteOldEntries (/opt/xen-orchestra/@xen-orchestra/backups/_DeltaBackupWriter.js:108:17)\n    at Array.<anonymous> (/opt/xen-orchestra/@xen-orchestra/backups/_VmBackup.js:150:70)\n    at Function.from (<anonymous>)"
                }
              },
              {
                "data": {
                  "type": "VM",
                  "id": "cbee81b4-afb8-2773-a92a-dd4b3f83651f"
                },
                "id": "1617829301116:0",
                "message": "backup VM",
                "start": 1617829301116,
                "status": "failure",
                "tasks": [
                  {
                    "id": "1617829301149",
                    "message": "snapshot",
                    "start": 1617829301149,
                    "status": "success",
                    "end": 1617829309295,
                    "result": "b34ab48b-4077-0ad8-ea82-8c7233c82db6"
                  },
                  {
                    "id": "1617829309296",
                    "message": "merge",
                    "start": 1617829309296,
                    "status": "failure",
                    "end": 1617829309296,
                    "result": {
                      "message": "Cannot read property 'length' of undefined",
                      "name": "TypeError",
                      "stack": "TypeError: Cannot read property 'length' of undefined\n    at /opt/xen-orchestra/@xen-orchestra/backups/_DeltaBackupWriter.js:114:31\n    at Zone.run (/opt/xen-orchestra/node_modules/node-zone/index.js:80:23)\n    at /opt/xen-orchestra/node_modules/node-zone/index.js:89:19\n    at Function.fromFunction (/opt/xen-orchestra/@xen-orchestra/backups/_syncThenable.js:20:27)\n    at SyncThenable.fulfilledThen [as then] (/opt/xen-orchestra/@xen-orchestra/backups/_syncThenable.js:2:50)\n    at TaskLogger.run (/opt/xen-orchestra/@xen-orchestra/backups/Task.js:77:10)\n    at Object.run (/opt/xen-orchestra/@xen-orchestra/backups/Task.js:157:17)\n    at DeltaBackupWriter._deleteOldEntries (/opt/xen-orchestra/@xen-orchestra/backups/_DeltaBackupWriter.js:108:17)\n    at Array.<anonymous> (/opt/xen-orchestra/@xen-orchestra/backups/_VmBackup.js:150:70)\n    at Function.from (<anonymous>)"
                    }
                  }
                ],
                "end": 1617829320279,
                "result": {
                  "message": "Cannot read property 'length' of undefined",
                  "name": "TypeError",
                  "stack": "TypeError: Cannot read property 'length' of undefined\n    at /opt/xen-orchestra/@xen-orchestra/backups/_DeltaBackupWriter.js:114:31\n    at Zone.run (/opt/xen-orchestra/node_modules/node-zone/index.js:80:23)\n    at /opt/xen-orchestra/node_modules/node-zone/index.js:89:19\n    at Function.fromFunction (/opt/xen-orchestra/@xen-orchestra/backups/_syncThenable.js:20:27)\n    at SyncThenable.fulfilledThen [as then] (/opt/xen-orchestra/@xen-orchestra/backups/_syncThenable.js:2:50)\n    at TaskLogger.run (/opt/xen-orchestra/@xen-orchestra/backups/Task.js:77:10)\n    at Object.run (/opt/xen-orchestra/@xen-orchestra/backups/Task.js:157:17)\n    at DeltaBackupWriter._deleteOldEntries (/opt/xen-orchestra/@xen-orchestra/backups/_DeltaBackupWriter.js:108:17)\n    at Array.<anonymous> (/opt/xen-orchestra/@xen-orchestra/backups/_VmBackup.js:150:70)\n    at Function.from (<anonymous>)"
                }
              },
              {
                "data": {
                  "type": "VM",
                  "id": "16dd84d4-2455-c293-2529-6311a98ecd46"
                },
                "id": "1617829320279:0",
                "message": "backup VM",
                "start": 1617829320279,
                "status": "failure",
                "tasks": [
                  {
                    "id": "1617829320312",
                    "message": "snapshot",
                    "start": 1617829320312,
                    "status": "success",
                    "end": 1617829333295,
                    "result": "1596e20b-e061-df4c-46d3-b2d5cce00094"
                  },
                  {
                    "id": "1617829333295:0",
                    "message": "merge",
                    "start": 1617829333295,
                    "status": "failure",
                    "end": 1617829333295,
                    "result": {
                      "message": "Cannot read property 'length' of undefined",
                      "name": "TypeError",
                      "stack": "TypeError: Cannot read property 'length' of undefined\n    at /opt/xen-orchestra/@xen-orchestra/backups/_DeltaBackupWriter.js:114:31\n    at Zone.run (/opt/xen-orchestra/node_modules/node-zone/index.js:80:23)\n    at /opt/xen-orchestra/node_modules/node-zone/index.js:89:19\n    at Function.fromFunction (/opt/xen-orchestra/@xen-orchestra/backups/_syncThenable.js:20:27)\n    at SyncThenable.fulfilledThen [as then] (/opt/xen-orchestra/@xen-orchestra/backups/_syncThenable.js:2:50)\n    at TaskLogger.run (/opt/xen-orchestra/@xen-orchestra/backups/Task.js:77:10)\n    at Object.run (/opt/xen-orchestra/@xen-orchestra/backups/Task.js:157:17)\n    at DeltaBackupWriter._deleteOldEntries (/opt/xen-orchestra/@xen-orchestra/backups/_DeltaBackupWriter.js:108:17)\n    at Array.<anonymous> (/opt/xen-orchestra/@xen-orchestra/backups/_VmBackup.js:150:70)\n    at Function.from (<anonymous>)"
                    }
                  }
                ],
                "end": 1617829339414,
                "result": {
                  "message": "Cannot read property 'length' of undefined",
                  "name": "TypeError",
                  "stack": "TypeError: Cannot read property 'length' of undefined\n    at /opt/xen-orchestra/@xen-orchestra/backups/_DeltaBackupWriter.js:114:31\n    at Zone.run (/opt/xen-orchestra/node_modules/node-zone/index.js:80:23)\n    at /opt/xen-orchestra/node_modules/node-zone/index.js:89:19\n    at Function.fromFunction (/opt/xen-orchestra/@xen-orchestra/backups/_syncThenable.js:20:27)\n    at SyncThenable.fulfilledThen [as then] (/opt/xen-orchestra/@xen-orchestra/backups/_syncThenable.js:2:50)\n    at TaskLogger.run (/opt/xen-orchestra/@xen-orchestra/backups/Task.js:77:10)\n    at Object.run (/opt/xen-orchestra/@xen-orchestra/backups/Task.js:157:17)\n    at DeltaBackupWriter._deleteOldEntries (/opt/xen-orchestra/@xen-orchestra/backups/_DeltaBackupWriter.js:108:17)\n    at Array.<anonymous> (/opt/xen-orchestra/@xen-orchestra/backups/_VmBackup.js:150:70)\n    at Function.from (<anonymous>)"
                }
              },
              {
                "data": {
                  "type": "VM",
                  "id": "03037a27-bc51-7cfc-ad64-4146992fc95a"
                },
                "id": "1617829339415",
                "message": "backup VM",
                "start": 1617829339415,
                "status": "failure",
                "tasks": [
                  {
                    "id": "1617829339440",
                    "message": "snapshot",
                    "start": 1617829339440,
                    "status": "success",
                    "end": 1617829343670,
                    "result": "65a5a558-c30a-d0d8-5d02-57056bf6f7fc"
                  },
                  {
                    "id": "1617829343671",
                    "message": "merge",
                    "start": 1617829343671,
                    "status": "failure",
                    "end": 1617829343671,
                    "result": {
                      "message": "Cannot read property 'length' of undefined",
                      "name": "TypeError",
                      "stack": "TypeError: Cannot read property 'length' of undefined\n    at /opt/xen-orchestra/@xen-orchestra/backups/_DeltaBackupWriter.js:114:31\n    at Zone.run (/opt/xen-orchestra/node_modules/node-zone/index.js:80:23)\n    at /opt/xen-orchestra/node_modules/node-zone/index.js:89:19\n    at Function.fromFunction (/opt/xen-orchestra/@xen-orchestra/backups/_syncThenable.js:20:27)\n    at SyncThenable.fulfilledThen [as then] (/opt/xen-orchestra/@xen-orchestra/backups/_syncThenable.js:2:50)\n    at TaskLogger.run (/opt/xen-orchestra/@xen-orchestra/backups/Task.js:77:10)\n    at Object.run (/opt/xen-orchestra/@xen-orchestra/backups/Task.js:157:17)\n    at DeltaBackupWriter._deleteOldEntries (/opt/xen-orchestra/@xen-orchestra/backups/_DeltaBackupWriter.js:108:17)\n    at Array.<anonymous> (/opt/xen-orchestra/@xen-orchestra/backups/_VmBackup.js:150:70)\n    at Function.from (<anonymous>)"
                    }
                  }
                ],
                "end": 1617829344953,
                "result": {
                  "message": "Cannot read property 'length' of undefined",
                  "name": "TypeError",
                  "stack": "TypeError: Cannot read property 'length' of undefined\n    at /opt/xen-orchestra/@xen-orchestra/backups/_DeltaBackupWriter.js:114:31\n    at Zone.run (/opt/xen-orchestra/node_modules/node-zone/index.js:80:23)\n    at /opt/xen-orchestra/node_modules/node-zone/index.js:89:19\n    at Function.fromFunction (/opt/xen-orchestra/@xen-orchestra/backups/_syncThenable.js:20:27)\n    at SyncThenable.fulfilledThen [as then] (/opt/xen-orchestra/@xen-orchestra/backups/_syncThenable.js:2:50)\n    at TaskLogger.run (/opt/xen-orchestra/@xen-orchestra/backups/Task.js:77:10)\n    at Object.run (/opt/xen-orchestra/@xen-orchestra/backups/Task.js:157:17)\n    at DeltaBackupWriter._deleteOldEntries (/opt/xen-orchestra/@xen-orchestra/backups/_DeltaBackupWriter.js:108:17)\n    at Array.<anonymous> (/opt/xen-orchestra/@xen-orchestra/backups/_VmBackup.js:150:70)\n    at Function.from (<anonymous>)"
                }
              },
              {
                "data": {
                  "type": "VM",
                  "id": "324aa303-4404-20c1-c8f7-686ace47fd3f"
                },
                "id": "1617829344954",
                "message": "backup VM",
                "start": 1617829344954,
                "status": "failure",
                "tasks": [
                  {
                    "id": "1617829344986",
                    "message": "snapshot",
                    "start": 1617829344986,
                    "status": "success",
                    "end": 1617829352405,
                    "result": "a0e9ca62-3e76-b6d1-cb0c-a3f0e602aded"
                  },
                  {
                    "id": "1617829352405:0",
                    "message": "merge",
                    "start": 1617829352405,
                    "status": "failure",
                    "end": 1617829352405,
                    "result": {
                      "message": "Cannot read property 'length' of undefined",
                      "name": "TypeError",
                      "stack": "TypeError: Cannot read property 'length' of undefined\n    at /opt/xen-orchestra/@xen-orchestra/backups/_DeltaBackupWriter.js:114:31\n    at Zone.run (/opt/xen-orchestra/node_modules/node-zone/index.js:80:23)\n    at /opt/xen-orchestra/node_modules/node-zone/index.js:89:19\n    at Function.fromFunction (/opt/xen-orchestra/@xen-orchestra/backups/_syncThenable.js:20:27)\n    at SyncThenable.fulfilledThen [as then] (/opt/xen-orchestra/@xen-orchestra/backups/_syncThenable.js:2:50)\n    at TaskLogger.run (/opt/xen-orchestra/@xen-orchestra/backups/Task.js:77:10)\n    at Object.run (/opt/xen-orchestra/@xen-orchestra/backups/Task.js:157:17)\n    at DeltaBackupWriter._deleteOldEntries (/opt/xen-orchestra/@xen-orchestra/backups/_DeltaBackupWriter.js:108:17)\n    at Array.<anonymous> (/opt/xen-orchestra/@xen-orchestra/backups/_VmBackup.js:150:70)\n    at Function.from (<anonymous>)"
                    }
                  }
                ],
                "end": 1617829354244,
                "result": {
                  "message": "Cannot read property 'length' of undefined",
                  "name": "TypeError",
                  "stack": "TypeError: Cannot read property 'length' of undefined\n    at /opt/xen-orchestra/@xen-orchestra/backups/_DeltaBackupWriter.js:114:31\n    at Zone.run (/opt/xen-orchestra/node_modules/node-zone/index.js:80:23)\n    at /opt/xen-orchestra/node_modules/node-zone/index.js:89:19\n    at Function.fromFunction (/opt/xen-orchestra/@xen-orchestra/backups/_syncThenable.js:20:27)\n    at SyncThenable.fulfilledThen [as then] (/opt/xen-orchestra/@xen-orchestra/backups/_syncThenable.js:2:50)\n    at TaskLogger.run (/opt/xen-orchestra/@xen-orchestra/backups/Task.js:77:10)\n    at Object.run (/opt/xen-orchestra/@xen-orchestra/backups/Task.js:157:17)\n    at DeltaBackupWriter._deleteOldEntries (/opt/xen-orchestra/@xen-orchestra/backups/_DeltaBackupWriter.js:108:17)\n    at Array.<anonymous> (/opt/xen-orchestra/@xen-orchestra/backups/_VmBackup.js:150:70)\n    at Function.from (<anonymous>)"
                }
              },
              {
                "data": {
                  "type": "VM",
                  "id": "5544f33e-5fd9-12e1-ee65-f5849bd7f442"
                },
                "id": "1617829354244:0",
                "message": "backup VM",
                "start": 1617829354244,
                "status": "failure",
                "tasks": [
                  {
                    "id": "1617829354276",
                    "message": "snapshot",
                    "start": 1617829354276,
                    "status": "success",
                    "end": 1617829358692,
                    "result": "6f1be8c4-4559-35da-e0b7-efc042d9b174"
                  },
                  {
                    "id": "1617829358692:0",
                    "message": "merge",
                    "start": 1617829358692,
                    "status": "failure",
                    "end": 1617829358692,
                    "result": {
                      "message": "Cannot read property 'length' of undefined",
                      "name": "TypeError",
                      "stack": "TypeError: Cannot read property 'length' of undefined\n    at /opt/xen-orchestra/@xen-orchestra/backups/_DeltaBackupWriter.js:114:31\n    at Zone.run (/opt/xen-orchestra/node_modules/node-zone/index.js:80:23)\n    at /opt/xen-orchestra/node_modules/node-zone/index.js:89:19\n    at Function.fromFunction (/opt/xen-orchestra/@xen-orchestra/backups/_syncThenable.js:20:27)\n    at SyncThenable.fulfilledThen [as then] (/opt/xen-orchestra/@xen-orchestra/backups/_syncThenable.js:2:50)\n    at TaskLogger.run (/opt/xen-orchestra/@xen-orchestra/backups/Task.js:77:10)\n    at Object.run (/opt/xen-orchestra/@xen-orchestra/backups/Task.js:157:17)\n    at DeltaBackupWriter._deleteOldEntries (/opt/xen-orchestra/@xen-orchestra/backups/_DeltaBackupWriter.js:108:17)\n    at Array.<anonymous> (/opt/xen-orchestra/@xen-orchestra/backups/_VmBackup.js:150:70)\n    at Function.from (<anonymous>)"
                    }
                  }
                ],
                "end": 1617829359980,
                "result": {
                  "message": "Cannot read property 'length' of undefined",
                  "name": "TypeError",
                  "stack": "TypeError: Cannot read property 'length' of undefined\n    at /opt/xen-orchestra/@xen-orchestra/backups/_DeltaBackupWriter.js:114:31\n    at Zone.run (/opt/xen-orchestra/node_modules/node-zone/index.js:80:23)\n    at /opt/xen-orchestra/node_modules/node-zone/index.js:89:19\n    at Function.fromFunction (/opt/xen-orchestra/@xen-orchestra/backups/_syncThenable.js:20:27)\n    at SyncThenable.fulfilledThen [as then] (/opt/xen-orchestra/@xen-orchestra/backups/_syncThenable.js:2:50)\n    at TaskLogger.run (/opt/xen-orchestra/@xen-orchestra/backups/Task.js:77:10)\n    at Object.run (/opt/xen-orchestra/@xen-orchestra/backups/Task.js:157:17)\n    at DeltaBackupWriter._deleteOldEntries (/opt/xen-orchestra/@xen-orchestra/backups/_DeltaBackupWriter.js:108:17)\n    at Array.<anonymous> (/opt/xen-orchestra/@xen-orchestra/backups/_VmBackup.js:150:70)\n    at Function.from (<anonymous>)"
                }
              },
              {
                "data": {
                  "type": "VM",
                  "id": "d649555a-c134-fe17-aa68-d49b5ba50edf"
                },
                "id": "1617829359980:0",
                "message": "backup VM",
                "start": 1617829359980,
                "status": "failure",
                "tasks": [
                  {
                    "id": "1617829360005",
                    "message": "snapshot",
                    "start": 1617829360005,
                    "status": "success",
                    "end": 1617829365133,
                    "result": "7b152071-5515-80c0-13fc-e390a13592d4"
                  },
                  {
                    "id": "1617829365133:0",
                    "message": "merge",
                    "start": 1617829365133,
                    "status": "failure",
                    "end": 1617829365133,
                    "result": {
                      "message": "Cannot read property 'length' of undefined",
                      "name": "TypeError",
                      "stack": "TypeError: Cannot read property 'length' of undefined\n    at /opt/xen-orchestra/@xen-orchestra/backups/_DeltaBackupWriter.js:114:31\n    at Zone.run (/opt/xen-orchestra/node_modules/node-zone/index.js:80:23)\n    at /opt/xen-orchestra/node_modules/node-zone/index.js:89:19\n    at Function.fromFunction (/opt/xen-orchestra/@xen-orchestra/backups/_syncThenable.js:20:27)\n    at SyncThenable.fulfilledThen [as then] (/opt/xen-orchestra/@xen-orchestra/backups/_syncThenable.js:2:50)\n    at TaskLogger.run (/opt/xen-orchestra/@xen-orchestra/backups/Task.js:77:10)\n    at Object.run (/opt/xen-orchestra/@xen-orchestra/backups/Task.js:157:17)\n    at DeltaBackupWriter._deleteOldEntries (/opt/xen-orchestra/@xen-orchestra/backups/_DeltaBackupWriter.js:108:17)\n    at Array.<anonymous> (/opt/xen-orchestra/@xen-orchestra/backups/_VmBackup.js:150:70)\n    at Function.from (<anonymous>)"
                    }
                  }
                ],
                "end": 1617829367170,
                "result": {
                  "message": "Cannot read property 'length' of undefined",
                  "name": "TypeError",
                  "stack": "TypeError: Cannot read property 'length' of undefined\n    at /opt/xen-orchestra/@xen-orchestra/backups/_DeltaBackupWriter.js:114:31\n    at Zone.run (/opt/xen-orchestra/node_modules/node-zone/index.js:80:23)\n    at /opt/xen-orchestra/node_modules/node-zone/index.js:89:19\n    at Function.fromFunction (/opt/xen-orchestra/@xen-orchestra/backups/_syncThenable.js:20:27)\n    at SyncThenable.fulfilledThen [as then] (/opt/xen-orchestra/@xen-orchestra/backups/_syncThenable.js:2:50)\n    at TaskLogger.run (/opt/xen-orchestra/@xen-orchestra/backups/Task.js:77:10)\n    at Object.run (/opt/xen-orchestra/@xen-orchestra/backups/Task.js:157:17)\n    at DeltaBackupWriter._deleteOldEntries (/opt/xen-orchestra/@xen-orchestra/backups/_DeltaBackupWriter.js:108:17)\n    at Array.<anonymous> (/opt/xen-orchestra/@xen-orchestra/backups/_VmBackup.js:150:70)\n    at Function.from (<anonymous>)"
                }
              }
            ],
            "end": 1617829367170
          }
          
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          • olivierlambertO Online
            olivierlambert Vates 🪐 Co-Founder CEO
            last edited by

            Does it ring any bell @julien-f ?

            1 Reply Last reply Reply Quote 0
            • julien-fJ Offline
              julien-f Vates 🪐 Co-Founder XO Team
              last edited by

              Nope, I don't see how this error can occur, are you up to date with master?

              M 1 Reply Last reply Reply Quote 0
              • M Offline
                mbt @julien-f
                last edited by

                At least I think so. I worked with svn for years but that was ages ago and I never got into using git.

                root@xo:/opt/xen-orchestra# git rev-parse master
                de288a008d83b81ea93d7f45889972028ff9ed6c
                root@xo:/opt/xen-orchestra# git branch
                * master
                root@xo:/opt/xen-orchestra# git fetch --dry-run
                remote: Enumerating objects: 5, done.
                remote: Counting objects: 100% (5/5), done.
                remote: Compressing objects: 100% (2/2), done.
                remote: Total 5 (delta 3), reused 5 (delta 3), pack-reused 0
                Unpacking objects: 100% (5/5), done.
                From https://github.com/vatesfr/xen-orchestra
                   e2515e531..52c4df4e4  ya_host_update_rev -> origin/ya_host_update_rev
                
                julien-fJ 1 Reply Last reply Reply Quote 0
                • julien-fJ Offline
                  julien-f Vates 🪐 Co-Founder XO Team @mbt
                  last edited by

                  @mbt A simple git pull --ff-only should do the trick.

                  Anyway, I think I found the issue 🙂

                  julien-fJ 1 Reply Last reply Reply Quote 0
                  • julien-fJ Offline
                    julien-f Vates 🪐 Co-Founder XO Team @julien-f
                    last edited by

                    Should be fixed on master, please test and keep me posted 🙂

                    FYI https://github.com/vatesfr/xen-orchestra/commit/8e4c90129e2ce82cd1d4097005048c0564898e72

                    0 julien-f committed to vatesfr/xen-orchestra
                    fix(backups/DeltaBackupWriter): dont overwrite prepare/cleanup in constructor
                    
                    Introduced in e69b6c4dc
                    M 1 Reply Last reply Reply Quote 0
                    • M Offline
                      mbt @julien-f
                      last edited by

                      @julien-f Hi Julien,

                      I updated, recreated the backup job and now it works again. Thank you! 🙂

                      julien-fJ 1 Reply Last reply Reply Quote 0
                      • julien-fJ Offline
                        julien-f Vates 🪐 Co-Founder XO Team @mbt
                        last edited by

                        @mbt Great! Thanks for your report and testing 🙂

                        1 Reply Last reply Reply Quote 0

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