Retry Execution Hourly

工作流概述

这是一个包含13个节点的复杂工作流，主要用于自动化处理各种任务。

工作流源代码

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{
  "id": "JJKkNnO4PQ12gQdE",
  "meta": {
    "instanceId": "0c2c4ddeb912d098b1d34ad608a9ee98cbe4700322f0cd2d87fa360b51c1c8a8",
    "templateCredsSetupCompleted": true
  },
  "name": "Retry Execution Hourly",
  "tags": [
    {
      "id": "BREwPdgeEC5njFaD",
      "name": "In Development",
      "createdAt": "2024-04-13T07:17:56.132Z",
      "updatedAt": "2024-04-13T07:17:56.132Z"
    }
  ],
  "nodes": [
    {
      "id": "ca8badce-4a43-4e86-acb8-6a3939ffa597",
      "name": "When clicking ‘Test workflow’",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        580,
        740
      ],
      "parameters": {},
      "typeVersion": 1
    },
    {
      "id": "7867cbd1-bf14-488d-9bbf-11d4478f93f2",
      "name": "n8n",
      "type": "n8n-nodes-base.n8n",
      "position": [
        1160,
        860
      ],
      "parameters": {
        "filters": {
          "status": "error"
        },
        "options": {
          "activeWorkflows": false
        },
        "resource": "execution",
        "returnAll": true,
        "requestOptions": {}
      },
      "credentials": {
        "n8nApi": {
          "id": "m9lkUOoNENYqXZIQ",
          "name": "Gatu a/c"
        }
      },
      "typeVersion": 1
    },
    {
      "id": "b9826e10-43b9-4a21-b2f8-f91fdee3e6a2",
      "name": "Log into n8n",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        960,
        860
      ],
      "parameters": {
        "url": "={{ 

(() => {
  const instance = $json.n8n_instance;
  const normalizedUrl = instance.endsWith('/') ? instance + 'rest/login' : instance + '/rest/login';
  return normalizedUrl;
})()
}}",
        "method": "POST",
        "options": {
          "response": {
            "response": {
              "fullResponse": true
            }
          }
        },
        "sendBody": true,
        "sendHeaders": true,
        "bodyParameters": {
          "parameters": [
            {
              "name": "email",
              "value": "={{ $json.username }}"
            },
            {
              "name": "password",
              "value": "={{ $json.password }}"
            }
          ]
        },
        "headerParameters": {
          "parameters": [
            {
              "name": "accept",
              "value": "application/json, text/plain, */*"
            },
            {
              "name": "accept-language",
              "value": "en-US,en;q=0.9"
            },
            {
              "name": "user-agent",
              "value": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36"
            }
          ]
        }
      },
      "retryOnFail": true,
      "typeVersion": 4.2
    },
    {
      "id": "1ca0527f-ccc4-4b3f-b585-94550987e0d3",
      "name": "retry workflow automatically",
      "type": "n8n-nodes-base.httpRequest",
      "onError": "continueRegularOutput",
      "position": [
        2080,
        980
      ],
      "parameters": {
        "url": "={{ 

$('login_details').item.json.n8n_instance.endsWith('/') 
  ? $('login_details').item.json.n8n_instance + 'rest/executions/' + $json.id + '/retry' 
  : $('login_details').item.json.n8n_instance + '/rest/executions/' + $('login_details').item.json.executionid + '/retry'

 }}  ",
        "method": "POST",
        "options": {
          "redirect": {
            "redirect": {}
          }
        },
        "sendBody": true,
        "sendHeaders": true,
        "bodyParameters": {
          "parameters": [
            {
              "name": "loadWorkflow",
              "value": "true"
            }
          ]
        },
        "headerParameters": {
          "parameters": [
            {
              "name": "accept",
              "value": "application/json, text/plain, */*"
            },
            {
              "name": "accept-language",
              "value": "en-US,en;q=0.9"
            },
            {
              "name": "cookie",
              "value": "={{ $('Log into n8n').item.json.headers['set-cookie'][0] }}"
            },
            {
              "name": "user-agent",
              "value": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36"
            }
          ]
        }
      },
      "retryOnFail": true,
      "typeVersion": 4.2
    },
    {
      "id": "b0b2f473-e12c-4377-80d3-46b18faa09b9",
      "name": "If",
      "type": "n8n-nodes-base.if",
      "position": [
        1380,
        860
      ],
      "parameters": {
        "options": {},
        "conditions": {
          "options": {
            "version": 2,
            "leftValue": "",
            "caseSensitive": true,
            "typeValidation": "strict"
          },
          "combinator": "and",
          "conditions": [
            {
              "id": "06acbcc4-1a82-4063-8a92-2ebbc6597b4b",
              "operator": {
                "type": "string",
                "operation": "notEmpty",
                "singleValue": true
              },
              "leftValue": "={{ $json.retrySuccessId }}",
              "rightValue": ""
            }
          ]
        }
      },
      "typeVersion": 2.2
    },
    {
      "id": "6ea6fe2c-de31-4628-87b1-69e7ba867030",
      "name": "No Operation, do nothing",
      "type": "n8n-nodes-base.noOp",
      "position": [
        1620,
        680
      ],
      "parameters": {},
      "typeVersion": 1
    },
    {
      "id": "851277e1-5b0e-4391-8174-2c118aacfa30",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        100,
        780
      ],
      "parameters": {
        "width": 383.5091496232509,
        "height": 285.0376749192681,
        "content": "- ## check for failed executions hourly.
- ## filter out those that have successful reexecution ids.
- ## log into n8n and get the session ids.
- ## retry the executions.

- h
"
      },
      "typeVersion": 1
    },
    {
      "id": "5b8bf8c1-f505-42da-936d-637394e71b34",
      "name": "login_details",
      "type": "n8n-nodes-base.set",
      "position": [
        760,
        860
      ],
      "parameters": {
        "options": {},
        "assignments": {
          "assignments": [
            {
              "id": "3edb7f73-73cb-44f4-b891-8499598d9b0a",
              "name": "username",
              "type": "string",
              "value": "gaturanjenga@gmail.com"
            },
            {
              "id": "bc07f892-aacf-4f7c-96d1-64a9e28a4d92",
              "name": "password",
              "type": "string",
              "value": "Password123"
            },
            {
              "id": "59874894-b1ec-4a31-949e-9c3834d68d47",
              "name": "n8n_instance",
              "type": "string",
              "value": "https://ai.gatuservices.info/"
            },
            {
              "id": "68c77c33-15e0-4505-90d0-8129e7a8fbba",
              "name": "executionid",
              "type": "string",
              "value": "={{ $json.id }}"
            }
          ]
        }
      },
      "typeVersion": 3.4
    },
    {
      "id": "74716a90-25a2-48b6-b342-197fe3807a3d",
      "name": "Loop Over Items",
      "type": "n8n-nodes-base.splitInBatches",
      "position": [
        1620,
        940
      ],
      "parameters": {
        "options": {},
        "batchSize": 5
      },
      "typeVersion": 3
    },
    {
      "id": "6439f486-68d4-4f9e-8e7f-3df909e32324",
      "name": "Schedule Trigger",
      "type": "n8n-nodes-base.scheduleTrigger",
      "position": [
        580,
        980
      ],
      "parameters": {
        "rule": {
          "interval": [
            {
              "field": "hours"
            }
          ]
        }
      },
      "typeVersion": 1.2
    },
    {
      "id": "882c03ea-d9e0-4d00-b4c6-5a1c55994fb0",
      "name": "Sticky Note1",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        740,
        740
      ],
      "parameters": {
        "color": 4,
        "width": 349.5813953488373,
        "height": 278.232558139535,
        "content": "## Set the login credential details in the set node, and login to n8n via api."
      },
      "typeVersion": 1
    },
    {
      "id": "bcc4d7e3-a91e-4c90-a018-56c6321f6ae2",
      "name": "Sticky Note2",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        1140,
        740
      ],
      "parameters": {
        "color": 2,
        "width": 343.81395348837225,
        "height": 263.8139534883721,
        "content": "## Get all `Error` executions.
- ### Filter out those that have been successfully retried
"
      },
      "typeVersion": 1
    },
    {
      "id": "9219f2a8-8b71-45e0-a987-7e8c1a6364fe",
      "name": "Sticky Note3",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        1780,
        880
      ],
      "parameters": {
        "color": 5,
        "width": 444.7441860465116,
        "height": 268.139534883721,
        "content": "## Retry the executions.
- ### Feel free to add notifications error messages for failed one to  email or slack"
      },
      "typeVersion": 1
    }
  ],
  "active": false,
  "pinData": {},
  "settings": {
    "executionOrder": "v1"
  },
  "versionId": "eb687638-734c-4feb-af5a-b49cf1dc661b",
  "connections": {
    "If": {
      "main": [
        [
          {
            "node": "No Operation, do nothing",
            "type": "main",
            "index": 0
          }
        ],
        [
          {
            "node": "Loop Over Items",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "n8n": {
      "main": [
        [
          {
            "node": "If",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Log into n8n": {
      "main": [
        [
          {
            "node": "n8n",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "execution_id": {
      "main": [
        [
          {
            "node": "retry workflow automatically",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "login_details": {
      "main": [
        [
          {
            "node": "Log into n8n",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Loop Over Items": {
      "main": [
        [],
        [
          {
            "node": "execution_id",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Schedule Trigger": {
      "main": [
        [
          {
            "node": "login_details",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "retry workflow automatically": {
      "main": [
        [
          {
            "node": "Loop Over Items",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "When clicking ‘Test workflow’": {
      "main": [
        [
          {
            "node": "login_details",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  }
}

功能特点

  • 自动检测新邮件
  • AI智能内容分析
  • 自定义分类规则
  • 批量处理能力
  • 详细的处理日志

技术分析

节点类型及作用

  • Manualtrigger
  • N8N
  • Httprequest
  • If
  • Noop

复杂度评估

配置难度：
★★★★☆
维护难度：
★★☆☆☆
扩展性：
★★★★☆

实施指南

前置条件

  • 有效的Gmail账户
  • n8n平台访问权限
  • Google API凭证
  • AI分类服务订阅

配置步骤

  1. 在n8n中导入工作流JSON文件
  2. 配置Gmail节点的认证信息
  3. 设置AI分类器的API密钥
  4. 自定义分类规则和标签映射
  5. 测试工作流执行
  6. 配置定时触发器（可选）

关键参数

参数名称 默认值 说明
maxEmails 50 单次处理的最大邮件数量
confidenceThreshold 0.8 分类置信度阈值
autoLabel true 是否自动添加标签

最佳实践

优化建议

  • 定期更新AI分类模型以提高准确性
  • 根据邮件量调整处理批次大小
  • 设置合理的分类置信度阈值
  • 定期清理过期的分类规则

安全注意事项

  • 妥善保管API密钥和认证信息
  • 限制工作流的访问权限
  • 定期审查处理日志
  • 启用双因素认证保护Gmail账户

性能优化

  • 使用增量处理减少重复工作
  • 缓存频繁访问的数据
  • 并行处理多个邮件分类任务
  • 监控系统资源使用情况

故障排除

常见问题

邮件未被正确分类

检查AI分类器的置信度阈值设置，适当降低阈值或更新训练数据。

Gmail认证失败

确认Google API凭证有效且具有正确的权限范围，重新进行OAuth授权。

调试技巧

  • 启用详细日志记录查看每个步骤的执行情况
  • 使用测试邮件验证分类逻辑
  • 检查网络连接和API服务状态
  • 逐步执行工作流定位问题节点

错误处理

工作流包含以下错误处理机制：

  • 网络超时自动重试（最多3次）
  • API错误记录和告警
  • 处理失败邮件的隔离机制
  • 异常情况下的回滚操作