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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 DEBIAN

bbmessage.cgi

BBMESSAGE.CGI(8)					      System Manager's Manual						  BBMESSAGE.CGI(8)

NAME

       bbmessage.cgi - CGI utility used for proxying Xymon data over HTTP

SYNOPSIS

       bbmessage.cgi

DESCRIPTION

       bbmessage.cgi(8)  is the server-side utility receiving Xymon messages sent by the bb(1) utility over an HTTP transport. The bb utility nor-
       mally sends data over a dedicated TCP protocol, but it may use HTTP to go through proxies or through restrictive firewalls. In  that  case,
       the  webserver  must  have this CGI utility installed, which takes care of receiving the message via HTTP, and forwards it to a local Xymon
       server through the normal Xymon transport.

       The CGI expects to be invoked from an HTTP "POST" request, with the POST-data being the status-message.	bbmessage.cgi simply collects  all
       of  the	POST  data,  and  send	it  off  as a message to the Xymon daemon running on IP 127.0.0.1. This destination IP currently cannot be
       changed.

       The CGI will return any output provided by the Xymon daemon back to the requestor as the response to the HTTP POST, so this allows for  all
       normal Xymon commands to work.

SECURITY

       bbmesage.cgi will only send data to a Xymon server through the loopback interface, i.e. IP-address 127.0.0.1.

       Access  to  the	CGI  should  be  restricted through webserver access controls, since the CGI provides no authentication at all to validate
       incoming messages.

       If possible, consider using the bbproxy(8) utility instead for native proxying of Xymon data between networks.

SEE ALSO

       bb(1), bbproxy(8), xymon(7)

Xymon							    Version 4.2.3:  4 Feb 2009						  BBMESSAGE.CGI(8)
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