事务

编辑

事务 是一种特殊的 span,它具有关联的附加属性。它们描述了由 Elastic APM 代理检测服务的事件。您可以将事务视为在服务中测量的最高级别工作。例如,事务可能是:

  • 对您服务器的请求
  • 批处理作业
  • 后台作业
  • 自定义事务类型

代理决定是否对事务进行采样,并提供设置来控制采样行为。如果已采样,则事务的 span 将作为单独的文档发送和存储。在一个事务中,可以捕获 0 个、1 个或多个 span。

事务包含:

  • 事件的时间戳
  • 唯一的 ID、类型和名称
  • 关于记录事件的环境的数据

    • 服务 - 环境、框架、语言等。
    • 主机 - 架构、主机名、IP 等。
    • 进程 - 参数、PID、PPID 等。
    • URL - 全部、域名、端口、查询等。
    • 用户 - (如果提供)电子邮件、ID、用户名等。
  • 根据代理的不同而有所不同的其他相关信息。例如:JavaScript RUM 代理捕获事务标记,这些标记是相对于事务开始时间的一些带标签的时间点。

此外,代理还提供选项供用户捕获自定义 元数据。元数据可以被索引 - labels,或者不被索引 - custom

事务在其 typename 的基础上,在“应用程序”UI 的 事务概述 中进行分组。如果您使用的是受支持的框架,APM 代理将自动为您处理命名。如果您没有使用,或者您希望覆盖默认值,所有代理都具有手动设置 typename 的 API 方法。

  • type 应该是服务领域中具有特定相关性的关键字,例如 requestbackgroundjob 等。
  • name 应该是单个服务范围内事务的通用名称,例如 GET /users/:idUsersController#show 等。

大多数代理将关键字字段(例如 labels)限制为 1024 个字符,非关键字字段(例如 span.db.statement)限制为 10,000 个字符。

数据流
编辑

事务与 span 存储在以下数据流中:

  • 应用追踪:traces-apm-<namespace>
  • RUM 和 iOS 代理应用追踪:traces-apm.rum-<namespace>

请参阅 数据流 以了解更多信息。

事务文档示例
编辑

此示例显示事务文档在 Elasticsearch 中索引后的样子。

展开 Elasticsearch 文档
[
    {
        "@timestamp": "2017-05-30T18:53:42.281Z",
        "agent": {
            "name": "elastic-node",
            "version": "3.14.0"
        },
        "container": {
            "id": "container-id"
        },
        "ecs": {
            "version": "1.12.0"
        },
        "event": {
            "ingested": "2020-08-11T09:55:04.391451Z",
            "outcome": "unknown"
        },
        "host": {
            "architecture": "x64",
            "ip": ["127.0.0.1"],
            "os": {
                "platform": "darwin"
            }
        },
        "kubernetes": {
            "namespace": "namespace1",
            "pod": {
                "name": "pod-name",
                "uid": "pod-uid"
            }
        },
        "observer": {
            "hostname": "ix.lan",
            "type": "apm-server",
            "version": "8.0.0"
        },
        "process": {
            "args": [
                "node",
                "server.js"
            ],
            "pid": 1234,
            "parent": {
                "pid": 6789
            },
            "title": "node"
        },
        "processor": {
            "event": "transaction",
            "name": "transaction"
        },
        "service": {
            "environment": "staging",
            "framework": {
                "name": "Express",
                "version": "1.2.3"
            },
            "language": {
                "name": "ecmascript",
                "version": "8"
            },
            "name": "1234_service-12a3",
            "node": {
                "name": "container-id"
            },
            "runtime": {
                "name": "node",
                "version": "8.0.0"
            },
            "version": "5.1.3"
        },
        "timestamp": {
            "us": 1496170422281000
        },
        "trace": {
            "id": "85925e55b43f4340aaaaaaaaaaaaaaaa"
        },
        "transaction": {
            "duration": {
                "us": 13980
            },
            "id": "85925e55b43f4340",
            "name": "GET /api/types",
            "result": "failure",
            "sampled": true,
            "span_count": {
                "started": 0
            },
            "type": "request"
        },
        "user": {
            "email": "[email protected]",
            "id": "123user",
            "name": "foo"
        }
    },
    {
        "@timestamp": "2017-05-30T18:53:42.281Z",
        "agent": {
            "name": "elastic-node",
            "version": "3.14.0"
        },
        "container": {
            "id": "container-id"
        },
        "ecs": {
            "version": "1.12.0"
        },
        "event": {
            "ingested": "2020-08-11T09:55:04.391639Z",
            "outcome": "unknown"
        },
        "host": {
            "architecture": "x64",
            "ip": "127.0.0.1",
            "os": {
                "platform": "darwin"
            }
        },
        "kubernetes": {
            "namespace": "namespace1",
            "pod": {
                "name": "pod-name",
                "uid": "pod-uid"
            }
        },
        "observer": {
            "ephemeral_id": "fb037b97-0027-401a-9dc4-17d162f2687f",
            "hostname": "goat",
            "id": "a4daf4ca-b280-4ede-90df-bf62482cec37",
            "type": "apm-server",
            "version": "8.0.0"
        },
        "process": {
            "args": [
                "node",
                "server.js"
            ],
            "pid": 1234,
            "parent": {
                "pid": 6789
            },
            "title": "node"
        },
        "processor": {
            "event": "transaction",
            "name": "transaction"
        },
        "service": {
            "environment": "staging",
            "framework": {
                "name": "Express",
                "version": "1.2.3"
            },
            "language": {
                "name": "ecmascript",
                "version": "8"
            },
            "name": "1234_service-12a3",
            "node": {
                "name": "container-id"
            },
            "runtime": {
                "name": "node",
                "version": "8.0.0"
            },
            "version": "5.1.3"
        },
        "timestamp": {
            "us": 1496170422281999
        },
        "trace": {
            "id": "85925e55b43f4342aaaaaaaaaaaaaaaa"
        },
        "transaction": {
            "duration": {
                "us": 13980
            },
            "id": "85925e55b43f4342",
            "name": "GET /api/types",
            "result": "200",
            "sampled": true,
            "span_count": {
                "dropped": 258,
                "started": 1
            },
            "type": "request"
        },
        "user": {
            "email": "[email protected]",
            "id": "123user",
            "name": "foo"
        }
    },
    {
        "@timestamp": "2017-05-30T18:53:27.154Z",
        "agent": {
            "name": "js-base",
            "version": "1.3"
        },
        "client": {
            "geo": {
                "continent_name": "North America",
                "country_iso_code": "US",
                "country_name": "United States",
                "location": {
                    "lat": 37.751,
                    "lon": -97.822
                }
            },
            "ip": "8.8.8.8"
        },
        "container": {
            "id": "container-id"
        },
        "ecs": {
            "version": "1.12.0"
        },
        "event": {
            "ingested": "2020-08-11T09:55:04.338986Z",
            "outcome": "unknown"
        },
        "host": {
            "architecture": "x64",
            "ip": "127.0.0.1",
            "os": {
                "platform": "darwin"
            }
        },
        "http": {
            "request": {
                "body": {
                    "original": {
                        "additional": {
                            "bar": 123,
                            "req": "additional information"
                        },
                        "str": "hello world"
                    }
                },
                "cookies": {
                    "c1": "v1",
                    "c2": "v2"
                },
                "env": {
                    "GATEWAY_INTERFACE": "CGI/1.1",
                    "SERVER_SOFTWARE": "nginx"
                },
                "headers": {
                    "Array": [
                        "foo",
                        "bar",
                        "baz"
                    ],
                    "Content-Type": [
                        "text/html"
                    ],
                    "Cookie": [
                        "c1=v1,c2=v2"
                    ],
                    "Some-Other-Header": [
                        "foo"
                    ],
                    "User-Agent": [
                        "Mozilla Chrome Edge"
                    ]
                },
                "method": "POST",
                "referrer": "https://127.0.0.1:8000/test/e2e/"
            },
            "response": {
                "finished": true,
                "headers": {
                    "Content-Type": [
                        "application/json"
                    ]
                },
                "headers_sent": true,
                "status_code": 200
            },
            "version": "1.1"
        },
        "kubernetes": {
            "namespace": "namespace1",
            "pod": {
                "name": "pod-name",
                "uid": "pod-uid"
            }
        },
        "labels": {
            "bool_error": false,
            "number_code": 2,
            "organization_uuid": "9f0e9d64-c185-4d21-a6f4-4673ed561ec8"
        },
        "observer": {
            "ephemeral_id": "fb037b97-0027-401a-9dc4-17d162f2687f",
            "hostname": "goat",
            "id": "a4daf4ca-b280-4ede-90df-bf62482cec37",
            "type": "apm-server",
            "version": "8.0.0"
        },
        "process": {
            "args": [
                "node",
                "server.js"
            ],
            "pid": 1234,
            "parent": {
                "pid": 6789
            },
            "title": "node"
        },
        "processor": {
            "event": "transaction",
            "name": "transaction"
        },
        "service": {
            "environment": "staging",
            "framework": {
                "name": "Express",
                "version": "1.2.3"
            },
            "language": {
                "name": "ecmascript",
                "version": "8"
            },
            "name": "serviceabc",
            "node": {
                "name": "special-name"
            },
            "runtime": {
                "name": "javascript",
                "version": "8.0.0"
            },
            "version": "5.1.3"
        },
        "source": {
            "ip": "8.8.8.8"
        },
        "timestamp": {
            "us": 1496170407154000
        },
        "trace": {
            "id": "945254c567a5417eaaaaaaaaaaaaaaaa"
        },
        "transaction": {
            "custom": {
                "(": "not a valid regex and that is fine",
                "and_objects": {
                    "foo": [
                        "bar",
                        "baz"
                    ]
                },
                "my_key": 1,
                "some_other_value": "foo bar"
            },
            "duration": {
                "us": 32592
            },
            "id": "945254c567a5417e",
            "marks": {
                "another_mark": {
                    "some_float": 10,
                    "some_long": 10
                },
                "navigationTiming": {
                    "appBeforeBootstrap": 608.9300000000001,
                    "navigationStart": -21
                }
            },
            "name": "GET /api/types",
            "result": "success",
            "sampled": true,
            "span_count": {
                "dropped": 2,
                "started": 4
            },
            "type": "request"
        },
        "url": {
            "domain": "www.example.com",
            "fragment": "#hash",
            "full": "https://www.example.com/p/a/t/h?query=string#hash",
            "original": "/p/a/t/h?query=string#hash",
            "path": "/p/a/t/h",
            "port": 8080,
            "query": "?query=string",
            "scheme": "https"
        },
        "user": {
            "email": "[email protected]",
            "id": "99"
        },
        "user_agent": {
            "device": {
                "name": "Other"
            },
            "name": "Other",
            "original": "Mozilla Chrome Edge"
        }
    }
]