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Full Discussion: awk script to find time difference between HTTP PUT and HTTP DELETE requests in access.log
Top Forums Shell Programming and Scripting awk script to find time difference between HTTP PUT and HTTP DELETE requests in access.log Post 302976768 by Juha on Wednesday 6th of July 2016 02:51:16 AM
Old 07-06-2016
awk script to find time difference between HTTP PUT and HTTP DELETE requests in access.log
Hi,

I'm trying to write a script to determine the time gap between HTTP PUT and HTTP DELETE requests in the HTTP Servers access log.

Normally client will do HTTP PUT to push content e.g. file_1.txt and 21 seconds later it will do HTTP DELETE, but sometimes the time varies causing some issues on the server side.

The format of the log is as below:

Code:
2016-07-06 11:09:04 [127.0.0.2] [PUT http://127.0.0.1:80/abc/bce/cde/file_30.txt HTTP/1.1] [201]
2016-07-06 11:09:04 [127.0.0.2] [DELETE http://127.0.0.1:80/abc/bce/cde/file_9.txt HTTP/1.1] [404]
2016-07-06 11:09:05 [127.0.0.2] [PUT http://127.0.0.1:80/abc/bce/cde/file_31.txt HTTP/1.1] [201]
2016-07-06 11:09:05 [127.0.0.2] [DELETE http://127.0.0.1:80/abc/bce/cde/file_10.txt HTTP/1.1] [404]
...
...
2016-07-06 11:09:25 [127.0.0.2] [PUT http://127.0.0.1:80/abc/bce/cde/file_51.txt HTTP/1.1] [201]
2016-07-06 11:09:25 [127.0.0.2] [DELETE http://127.0.0.1:80/abc/bce/cde/file_30.txt HTTP/1.1] [404]
2016-07-06 11:09:26 [127.0.0.2] [PUT http://127.0.0.1:80/abc/bce/cde/file_52.txt HTTP/1.1] [201]
2016-07-06 11:09:26 [127.0.0.2] [DELETE http://127.0.0.1:80/abc/bce/cde/file_31.txt HTTP/1.1] [404]

So from above I'd need to first find the time stamp e.g. when file_30.txt was pushed in, then find the HTTP DELETE for the file_30.txt and then determine the time difference. (file_30.txt just and example as this would need to be done to every file pushed in)

So it would be the 2 following lines
2016-07-06 11:09:04 [127.0.0.2] [PUT Revive Adserver HTTP/1.1] [201]
2016-07-06 11:09:25 [127.0.0.2] [DELETE Revive Adserver HTTP/1.1] [404]

So time difference would be: 11:09:25 - 11:09:04 = 21seconds

And output would be something like:
File: file_30.txt, difference: 21sec

I'm trying to use awk script to do this but I'm not very familiar with it so I've just started with the following(which might be totally stupid) so if anyone would have ideas on how to go about writing the script to achieve my goal it would be great:

Code:
BEGIN {
    FS=" ";
}

{
    if (/file_/)
    {
      time = $2
      httpmethod = $4
      file = $5
      sub(/.*\//,"",file)
      httpresult = $6
    }
	# Need to find the line with HTTP DELETE with the file from above
	# and then determine the time difference
}

 

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LEARN ABOUT MOJAVE

curlopt_failonerror

CURLOPT_FAILONERROR(3)					     curl_easy_setopt options					    CURLOPT_FAILONERROR(3)

NAME

       CURLOPT_FAILONERROR - request failure on HTTP response >= 400

SYNOPSIS

       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_FAILONERROR, long fail);

DESCRIPTION

       A  long	parameter  set	to  1  tells the library to fail the request if the HTTP code returned is equal to or larger than 400. The default
       action would be to return the page normally, ignoring that code.

       This method is not fail-safe and there are occasions where non-successful response codes will slip through, especially when  authentication
       is involved (response codes 401 and 407).

       You  might  get some amounts of headers transferred before this situation is detected, like when a "100-continue" is received as a response
       to a POST/PUT and a 401 or 407 is received immediately afterwards.

       When this option is used and an error is detected, it will cause the connection to get closed.

DEFAULT

       0, do not fail on error

PROTOCOLS

       HTTP

EXAMPLE

       TODO

AVAILABILITY

       Along with HTTP

RETURN VALUE

       Returns CURLE_OK if HTTP is enabled, and CURLE_UNKNOWN_OPTION if not.

SEE ALSO

       CURLOPT_HTTP200ALIASES(3), CURLOPT_KEEP_SENDING_ON_ERROR(3),

libcurl 7.54.0							September 22, 2016					    CURLOPT_FAILONERROR(3)
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