在AWS CloudWatch中打开Logs Insight。
创建新的查询,并从查询栏的下拉菜单中选择适当的日志组。
在查询语句中,使用以下代码示例查询失败的DNS请求:
fields @timestamp, @message | filter @message like /query timed out/ | stats count() as Total_Queries | filter Total_Queries > 0 | stats sum(Total_Queries) as Failed_Queries, sum(Total_Queries)/(sum(Total_Queries)+sum()) as Percent_Failed
运行查询,并查看结果,包括总查询数、失败查询数和失败查询的百分比。