CloudWatch Lambda Insights 中的示例遥测事件

每次调用启用了 Lambda Insights 的 Lambda 函数，都会向 /aws/lambda-insights 日志组写入一个日志事件。每个日志事件都包含嵌入式指标格式的指标。有关嵌入式指标格式的更多信息，请参阅在日志中嵌入指标。

您可以使用以下方法分析这些日志事件：

• CloudWatch 控制台的 Lambda Insights 部分（见 查看 Lambda Insights 指标 中的说明）。

• 使用 CloudWatch Logs Insights 记录事件查询。有关更多信息，请参阅使用 CloudWatch Logs Insights 分析日志数据。

• LambdaInsights 命名空间中收集的指标，您可以通过使用 CloudWatch 指标来绘制这些指标的图形。

以下是嵌入式指标格式的 Lambda Insights 日志事件示例。

{
    "_aws": {
        "Timestamp": 1605034324256,
        "CloudWatchMetrics": [
            {
                "Namespace": "LambdaInsights",
                "Dimensions": [
                    [ "function_name" ],
                    [ "function_name", "version" ]
                ],
                "Metrics": [
                    { "Name": "memory_utilization", "Unit": "Percent" },
                    { "Name": "total_memory", "Unit": "Megabytes" },
                    { "Name": "used_memory_max", "Unit": "Megabytes" },
                    { "Name": "cpu_total_time", "Unit": "Milliseconds" },
                    { "Name": "tx_bytes", "Unit": "Bytes" },
                    { "Name": "rx_bytes", "Unit": "Bytes" },
                    { "Name": "total_network", "Unit": "Bytes" },
                    { "Name": "init_duration", "Unit": "Milliseconds" }
                ]
            }
        ],
        "LambdaInsights": {
            "ShareTelemetry": true
        }
    },
    "event_type": "performance",
    "function_name": "cpu-intensive",
    "version": "Blue",
    "request_id": "12345678-8bcc-42f7-b1de-123456789012",
    "trace_id": "1-5faae118-12345678901234567890",
    "duration": 45191,
    "billed_duration": 45200,
    "billed_mb_ms": 11571200,
    "cold_start": true,
    "init_duration": 130,
    "tmp_free": 538329088,
    "tmp_max": 551346176,
    "threads_max": 11,
    "used_memory_max": 63,
    "total_memory": 256,
    "memory_utilization": 24,
    "cpu_user_time": 6640,
    "cpu_system_time": 50,
    "cpu_total_time": 6690,
    "fd_use": 416,
    "fd_max": 32642,
    "tx_bytes": 4434,
    "rx_bytes": 6911,
    "timeout": true,
    "shutdown_reason": "Timeout",
    "total_network": 11345,
    "agent_version": "1.0.72.0",
    "agent_memory_avg": 10,
    "agent_memory_max": 10
}