Hi

>> #1  I'm not sure the JavaScript you posted will work in all browsers.

Absolutely Correct the Application is limited to usage of 2 browsers Via 
Browser Filter [ IE 7+ ot FF3+ ] Tests carried out from the same.


>>#2  These two requests are around 12 seconds apart.  Perform exactly the same 
>>test at least 10 more times and report what the period between the pair of 
>>requests is.

The sample give was 1 out of 6 times done on the same day



>>#3  I can't see from the trace above what the resource type is, but if it's a 
>>PDF for example, the browser (+plugin) may be attempting to open
multiple connections with different byte ranges.

This process does not use any Plugin,  it just sends the info to underlying 
Business Layer and finally on to DataBase.


With regards
karthik





-----Original Message-----
From: Pid [mailto:p...@pidster.com]
Sent: Wednesday, August 11, 2010 1:41 PM
To: Tomcat Users List
Subject: Re: 2 POST requests to underlying Server

On 11/08/2010 07:08, Karthik Nanjangude wrote:
> Hi
>
> Ok I have copied the wire shark test samples for the 2 Post Requests [ Apache 
> to JBOSS (Tomcat Internal )..This was taken Aug 9, 2010
>
>
>
>
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> 1nd Post Request
>
> No.     Time        Source                Destination           Protocol Info
>   10022 30.516874   10.151.41.160         10.151.41.163         TCP      
> 33403 > 8109 [PSH, ACK] Seq=2079 Ack=4544 Win=15600 Len=65 TSV=2265749122 
> TSER=2977204079
>
> Frame 10022 (131 bytes on wire, 131 bytes captured)
>     Arrival Time: Aug  9, 2010 15:30:35.485640000


> Data (65 bytes)
>
> 0000  12 34 00 3d 00 3b 73 69 6d 3d 38 39 36 30 31 39   .4.=.;sim=896019
> 0010  39 39 30 30 32 30 34 32 36 33 37 35 26 63 61 6e   990020426375&can
> 0020  6d 73 69 73 64 6e 3d 31 30 35 32 37 37 37 37 37   msisdn=105277777
> 0030  26 61 63 63 6f 75 6e 74 69 64 3d 36 37 39 37 35   &accountid=67975
> 0040  31                                                1
>     Data: 1234003D003B73696D3D3839363031393939303032303432...
>     [Length: 65]
>
>
>
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> 2nd Post Request
>
> No.     Time        Source                Destination           Protocol Info
>   15548 42.619208   10.151.41.160         10.151.41.163         TCP      
> 33418 > 8109 [PSH, ACK] Seq=1075 Ack=6 Win=5840 Len=65 TSV=2265761224 
> TSER=2977216182
>
> Frame 15548 (131 bytes on wire, 131 bytes captured)
>     Arrival Time: Aug  9, 2010 15:30:47.587974000


> 0000  12 34 00 3d 00 3b 73 69 6d 3d 38 39 36 30 31 39   .4.=.;sim=896019
> 0010  39 39 30 30 32 30 34 32 36 33 37 35 26 63 61 6e   990020426375&can
> 0020  6d 73 69 73 64 6e 3d 31 30 35 32 37 37 37 37 37   msisdn=105277777
> 0030  26 61 63 63 6f 75 6e 74 69 64 3d 36 37 39 37 35   &accountid=67975
> 0040  31                                                1
>     Data: 1234003D003B73696D3D3839363031393939303032303432...
>     [Length: 65]


#1  I'm not sure the JavaScript you posted will work in all browsers.

#2  These two requests are around 12 seconds apart.  Perform exactly the
same test at least 10 more times and report what the period between the
pair of requests is.

#3  I can't see from the trace above what the resource type is, but if
it's a PDF for example, the browser (+plugin) may be attempting to open
multiple connections with different byte ranges.


p

> -----Original Message-----
> From: Karthik Nanjangude [mailto:karthik.nanjang...@xius-bcgi.com]
> Sent: Wednesday, August 11, 2010 11:03 AM
> To: Tomcat Users List
> Subject: RE: 2 POST requests to underlying Server
>
> Hi
>
>>> wireshark or tcpdump running on the external + internal segments 
>>> simultaneously.
>
> I can provide u the tcp dump samples which we used to validate using White 
> shark.
>
>
> Of course I need some time (probably by EOD ) to get permission from my 
> authorities for the same.
>
> Is this ok with u
>
>
> With regards
> KArthik
>
> -----Original Message-----
> From: Hassan Schroeder [mailto:hassan.schroe...@gmail.com]
> Sent: Wednesday, August 11, 2010 10:49 AM
> To: Tomcat Users List
> Subject: Re: 2 POST requests to underlying Server
>
> On Tue, Aug 10, 2010 at 10:07 PM, Karthik Nanjangude
> <karthik.nanjang...@xius-bcgi.com> wrote:
>
>> The same test performed on the Internal IP (http://<ip:port>/ABCD), and was 
>> observed that the single Post request was observed with single Insertion to 
>> DB ... compared to 2 POST request via External IO ( http://ABCD.com )
>>
>> So how does this prove that the JavaScript as stated below is not working 
>> .... :(
>
> Forget the browser and the JavaScript -- reproduce the problem using
> wget or curl or something basic to initiate your request, with wireshark
> or tcpdump running on the external + internal segments simultaneously.
>
> Then you'll have some interesting data :-)




> --
> Hassan Schroeder ------------------------ hassan.schroe...@gmail.com
> twitter: @hassan
>
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