IIS Log Parser - 需要查询以查找“请求总数”> x秒“ /“总请求数”按URL分组 [英] IIS Log Parser - Need Query to find "total requests taking > x secs" / "Total Requests" grouped by URL

问题描述

我支持偶尔出现性能问题的应用程序。客户想要知道页面的缓慢频率。

I am supporting an application that is having occasional performance issues. The client wants to know how often a page is slow.

即。页面占用的总时间大于x秒/页面请求总数

i.e. Total times a page took greater than x secs / Total number of requests for the page

我想编写单个查询来获取所需的数据。

I would like to write a single query to fetch the desired data.

SQL中的这样的东西可能会起作用但在IIS日志解析器中不起作用。

Something like this in SQL would probably work but isn't working in IIS Log parser.

select URL, count(case when time > 100  then 1 else null end), count(*)
from   table1
group by URL

推荐答案

这里的问题是你需要两个查询。

The problem here is that you need two queries.

• 无论花费多少时间，每页都要计算一次请求总数

• One to count the total number of requests per page regardless of time taken

SELECT cs-uri-stem, COUNT(*) AS all-requests 
FROM ex*.log 
GROUP BY cs-uri-stem

计算时间> X秒

One to count the number of pages where time-taken > X seconds

SELECT cs-uri-stem, COUNT(*) as total-requests
FROM ex*.log
WHERE time-taken > 1000 <- time_taken is milliseconds
GROUP BY cs-uri-stem 

您所需的结果需要加入：

The result you're after would require a JOIN:

SELECT a.cs-uri-stem, COUNT(*) as total-requests, b.all-requests
FROM ex*.log AS a
JOIN (
    SELECT cs-uri-stem, COUNT(*) AS all-requests 
    FROM ex*.log 
    GROUP BY cs-uri-stem
) AS b ON b.cs-uri-stem = a.cs-uri-stem
WHERE a.time-taken >1000 
GROUP BY a.cs-uri-stem 

不幸的是，LogParser中没有对JOIN的支持。

Unfortunately there is no support for JOIN's in LogParser.

您可以做的是将两个查询的结果导入SQL数据库并在那里运行查询：

What you could do is import the results of both queries into a SQL Database and run the query there:

SELECT a.cs-uri-stem, COUNT(*) as total-requests, b.all-requests
FROM long_running_pages AS a
JOIN all_pages_grouped b ON ( a.cs-uri-stem = b.cs-uri-stem)
GROUP BY a.cs-uri-stem 

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