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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_transfer_encoding

CURLOPT_TRANSFER_ENCODING(3)				     curl_easy_setopt options				      CURLOPT_TRANSFER_ENCODING(3)

NAME

       CURLOPT_TRANSFER_ENCODING - ask for HTTP Transfer Encoding

SYNOPSIS

       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_TRANSFER_ENCODING, long enable);

DESCRIPTION

       Pass a long set to 1 to enable or 0 to disable.

       Adds  a	request  for compressed Transfer Encoding in the outgoing HTTP request. If the server supports this and so desires, it can respond
       with the HTTP response sent using a compressed Transfer-Encoding that will be automatically uncompressed by libcurl on reception.

       Transfer-Encoding differs slightly from the Content-Encoding you ask for with CURLOPT_ACCEPT_ENCODING(3) in  that  a  Transfer-Encoding	is
       strictly  meant to be for the transfer and thus MUST be decoded before the data arrives in the client. Traditionally, Transfer-Encoding has
       been much less used and supported by both HTTP clients and HTTP servers.

DEFAULT

       0

PROTOCOLS

       HTTP

EXAMPLE

       TODO

AVAILABILITY

       Added in 7.21.6

RETURN VALUE

       Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.

SEE ALSO

       CURLOPT_ACCEPT_ENCODING(3), CURLOPT_HTTP_TRANSFER_DECODING(3),

libcurl 7.54.0							   May 02, 2016 				      CURLOPT_TRANSFER_ENCODING(3)
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