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ApiManagementGatewayLogs 表的查询

  • 项目

有关在 Azure 门户中使用这些查询的信息，请参阅 Log Analytics 教程。 有关 REST API，请参阅查询。

请求数量

计算最近 24 小时跨所有 API 的调用总数。

//Total number of call per resource
ApiManagementGatewayLogs
| where TimeGenerated > ago(1d)
| summarize count(CorrelationId) by _ResourceId

最近 100 次调用的日志

获取过去 24 小时最近 100 次调用的日志。

ApiManagementGatewayLogs
| top 100 by TimeGenerated desc

调用次数(按 API)

查看过去 24 小时每个 API 的调用次数。

//Calls by API ID
ApiManagementGatewayLogs
| where TimeGenerated > ago(1d)
| summarize count(CorrelationId) by ApiId

消耗的带宽

过去 24 小时消耗的总带宽。

// To create an alert for this query, click '+ New alert rule'
ApiManagementGatewayLogs
| where TimeGenerated > ago(1d)
| extend bandwidth = RequestSize + ResponseSize 
| summarize sum(bandwidth) by bin(TimeGenerated, 15m), _ResourceId 
| render timechart

请求大小

过去 24 小时请求大小的统计信息。

// To create an alert for this query, click '+ New alert rule'
ApiManagementGatewayLogs
| where TimeGenerated > ago(1d)
| summarize Average=avg(RequestSize), Median=percentile(RequestSize, 50), 90th_Percentile=percentile(RequestSize, 90) by bin(TimeGenerated, 5m) 
| render timechart

响应大小

过去 24 小时响应大小的统计信息。

// To create an alert for this query, click '+ New alert rule'
ApiManagementGatewayLogs
| where TimeGenerated > ago(1d)
| summarize Average=avg(ResponseSize), Median=percentile(ResponseSize, 50), 90th_Percentile=percentile(ResponseSize, 90) by bin(TimeGenerated, 5m) 
| render timechart

客户端 TLS 版本

过去 24 小时客户端 TLS 版本的细分。

ApiManagementGatewayLogs
| where TimeGenerated > ago(1d)
| summarize count(CorrelationId) by ClientTlsVersion, _ResourceId

错误原因细分

过去 24 小时所有错误原因的明细。

// To create an alert for this query, click '+ New alert rule'
ApiManagementGatewayLogs
| where TimeGenerated > ago(1d)
| where IsRequestSuccess == false
| summarize count(CorrelationId) by LastErrorReason, _ResourceId

最近 100 个失败请求

获取最近 100 次失败请求的日志。

ApiManagementGatewayLogs
| where TimeGenerated > ago(1d)
| where IsRequestSuccess == false
| top 100 by TimeGenerated desc| where ResponseCode >= 400

获取后端问题导致的失败请求的日志。

// To create an alert for this query, click '+ New alert rule'
ApiManagementGatewayLogs
| where TimeGenerated > ago(1d)
| where IsRequestSuccess == false
| where BackendResponseCode >= 400

获取因与后端不相关的问题而失败的请求的日志（例如 API 管理策略配置、超过速率限制、客户端断开连接）。

// To create an alert for this query, click '+ New alert rule'
ApiManagementGatewayLogs
| where TimeGenerated > ago(1d)
| where IsRequestSuccess == false
| where isnull(BackendResponseCode) or BackendResponseCode < 400
| where ResponseCode >= 400

总延迟

API Management 开始接收请求的时间与 API Management 完成将响应发送回客户端的时间之间的总体延迟（以毫秒为单位）的统计信息。

// To create an alert for this query, click '+ New alert rule'
ApiManagementGatewayLogs
| where TimeGenerated > ago(1d)
| summarize Average=avg(TotalTime), Median=percentile(TotalTime, 50), 90th_Percentile=percentile(TotalTime, 90) by bin(TimeGenerated, 15m) 
| render timechart

后端延迟

在后端 IO 中所用的时间（以毫秒为单位）的统计信息。

// To create an alert for this query, click '+ New alert rule'
ApiManagementGatewayLogs
| where TimeGenerated > ago(1d)
| summarize Average=avg(BackendTime), Median=percentile(BackendTime, 50), 90th_Percentile=percentile(BackendTime, 90) by bin(TimeGenerated, 15m) 
| render timechart

客户端延迟

在客户端 IO 中所用的时间（以毫秒为单位）的统计信息。

// To create an alert for this query, click '+ New alert rule'
ApiManagementGatewayLogs
| where TimeGenerated > ago(1d)
| summarize Average=avg(ClientTime), Median=percentile(ClientTime, 50), 90th_Percentile=percentile(ClientTime, 90) by bin(TimeGenerated, 15m) 
| render timechart

缓存命中率

缓存命中/错过率的统计信息。

// To create an alert for this query, click '+ New alert rule'
ApiManagementGatewayLogs
| where TimeGenerated > ago(1d)
| summarize Cache_Miss=countif(Cache  == "miss"), Cache_Hit=countif(Cache == "hit") by bin(TimeGenerated, 15m)
| extend Ratio=Cache_Hit / (Cache_Hit + Cache_Miss)
| project-away Cache_Hit , Cache_Miss 
| render timechart