it's very easy, take a look at
http://svn.apache.org/viewvc/tomcat/tc6.0.x/trunk/java/org/apache/coyote/http11/InternalOutputBuffer.java?view=markup
then look for (case sensitive search)
outputStream.write(
and that is where we write bytes to the socket, just modify this class
for your own purposes
Filip
Dave Rathnow wrote:
I took a look at lamdaprobe but it only counts the payload and not the
HTTP request.
Back to my original question.....can anyone help?
-----Original Message-----
From: Henri Gomez [mailto:[EMAIL PROTECTED]
Sent: October 26, 2007 05:31 AM
To: Tomcat Developers List
Subject: Re: Measuring bytes sent and received from and to Tomcat
Well it should works since the Lamba Probe, got these numbers for HTTP
and AJP.
ie :
http://www.lambdaprobe.org/d/screenshots/full/charts.png
Regards
2007/10/25, Dave Rathnow <[EMAIL PROTECTED]>:
Hello Again,
I was wondering if someone could give me some help with this. I think
using a connector is probably the way to go to solve this problem;
however, I'm not sure where to start. How do I create my own
connector and the plumb it into Tomcat so it will be used. I will be
using a separate port other than 8080 for the devices that will be
sending and receiveing data so, if possible, I would like to leave the
default connector on port 8080.
Again, I don't want to reimplement the code that parses the HTTP. All
I need to do is count the number of bytes arriving and being sent so
if I can reuse code from an existing connector, that would be great.
Thanks,
Dave.
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Costin
Manolache
Sent: October 22, 2007 04:50 PM
To: Dave Rathnow
Cc: Tomcat Developers List
Subject: Re: Measuring bytes sent and received from and to Tomcat
Well, if you want absolute byte - connector seems the only place,
there are space and tabs beeing skipped when parsing headers, etc.
If you are ok with an estimate - the AccessLogValve is ok, add all the
header lengths + method + http/1.1. You'll miss bytes for encodings,
spaces.
Re. where to add - each connector is different on how it reads/parse
the message, you probably want to do it close to the 'read()' call,
save it somewhere associated with the request ( a note or attribute )
and read it in a valve or filter.
Costin
On 10/22/07, Dave Rathnow <[EMAIL PROTECTED]> wrote:
I looked at connectors but wasn't sure if this was what I wanted.
To avoid anther wild goose chase I decided to ask. Can you point me
in the direction of some documentation where I might be able to get
started?
Dave.
-----Original Message-----
From: Costin Manolache [mailto:[EMAIL PROTECTED]
Sent: October 22, 2007 04:28 PM
To: Tomcat Developers List
Subject: Re: Measuring bytes sent and received from and to Tomcat
'bytes' should be counted at a lower level, in connector. I'm not
sure
this is something generic enough - but you can make some changes to
your tomcat, where read() is done from socket.
I guess it would be nice to have a JMX graph with bytes/sec in/out.
Costin
'bytes'
On 10/22/07, Dave Rathnow <[EMAIL PROTECTED]> wrote:
We looked at using a valve but we weren't sure if it would work.
Correct me if I'm wrong, but it appears as though valves are
chained
together in a calling sequence and that some valves could change
the
content of the request or response. This means we may not get an
accurate measure of the number of total number bytes that make up
the request.
Also, the AccessLogValve has a pattern code to get the number of
bytes
sent, excluding the HTTP headers, but does not have a pattern code
to get the number of bytes sent, including the HTTP headers, which
is what we really need.
Have I missed something?
Dave.
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf
Of Yoav Shapira
Sent: October 22, 2007 02:36 PM
To: Tomcat Developers List
Subject: Re: Measuring bytes sent and received from and to Tomcat
Hey,
On 10/22/07, Dave Rathnow <[EMAIL PROTECTED]> wrote:
Is there a way we can do the same thing with Tomcat? It's
simple for us to measure the number of byte in the payload of
the HTTP request/response, however that isn't enough. We need
to know the total number of bytes being sent and received for
each HTTP
request.
Can someone suggest a way I could get an accurate count of these
bytes?
You can probably start with the AccessLogValve that ships with
Tomcat:
http://tomcat.apache.org/tomcat-6.0-doc/config/valve.html
Out of the box it will get you the complete bytes in the response.
See the above docs on how to configure that. If you want to log
the
complete bytes on the request, I think you'll have to extend the
Valve, but it should be pretty easy to do.
Yoav
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