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Posted to users@tomcat.apache.org by Dhanisworo Dhanisworo <dd...@gmail.com> on 2008/06/24 11:51:34 UTC
Tomcat, Radware AppDirector,IE6 Blank Page
Dear All,
I have encountered a problem using the configuration below
4 Clustered Tomcat + Radware AppDirector as Load balancer.
The problem was when accessing the page produced by tomcat using IE6 by
first hitting to the load balancer,
intermittently we got a blank page, but not so if using FireFox.
Upon direct access to the tomcat server, hence bypassing the load balancer,
using IE6,
no blank page ever occured. And using Firefox was fine too.
Can somebody explain what happened and give me some clue to resolve this
issue.
I've read about this issue in other situation, e.g: with the apache server
http://www.modwest.com/help/kb2-260.html
But I don't know how to apply it in Tomcat environment or to verify whether
they refer to the same issue.
Thanks in advance
best regards,Dyan
Re: Tomcat, Radware AppDirector,IE6 Blank Page
Posted by Dhanisworo Dhanisworo <dd...@gmail.com>.
The strange thing about is when the web app was accessed directly there
seemed to be no problem at all.
Yet when accessed though the load balancer, intermittently the problem
occurred.
The IE itself didn't hang because I can close it normally, but it seemed
like it waited for something that never came.
On Tue, Jun 24, 2008 at 5:08 PM, André Warnier <aw...@ice-sa.com> wrote:
>
>
> Dhanisworo Dhanisworo wrote:
>
>> Dear All,
>> I have encountered a problem using the configuration below
>> 4 Clustered Tomcat + Radware AppDirector as Load balancer.
>>
>> The problem was when accessing the page produced by tomcat using IE6 by
>> first hitting to the load balancer,
>> intermittently we got a blank page, but not so if using FireFox.
>>
>> Upon direct access to the tomcat server, hence bypassing the load
>> balancer,
>> using IE6,
>> no blank page ever occured. And using Firefox was fine too.
>>
>> Can somebody explain what happened and give me some clue to resolve this
>> issue.
>>
>> Hi. I know not much about load balancing, Radware or clustered Tomcats.
> But I can tell you that over the years, I have encountered numerous cases
> of inconsistent behaviours of IE, varying between versions, sub-versions and
> patches, and even between different workstations having the exact same
> version of IE, but having different other software packages installed.
> For instance, there are cases where, for no very apparent or documented
> reason, IE will issue a HEAD request for a URL, prior to issuing a GET or
> POST to that same URL. Presumably (but that is pure speculation on my part)
> that is to find out in advance what kind of response it is likely to get
> afterward.
> Maybe that can explain what you're seeing ?
>
> André
>
>
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Re: Tomcat, Radware AppDirector,IE6 Blank Page
Posted by André Warnier <aw...@ice-sa.com>.
Dhanisworo Dhanisworo wrote:
> Dear All,
> I have encountered a problem using the configuration below
> 4 Clustered Tomcat + Radware AppDirector as Load balancer.
>
> The problem was when accessing the page produced by tomcat using IE6 by
> first hitting to the load balancer,
> intermittently we got a blank page, but not so if using FireFox.
>
> Upon direct access to the tomcat server, hence bypassing the load balancer,
> using IE6,
> no blank page ever occured. And using Firefox was fine too.
>
> Can somebody explain what happened and give me some clue to resolve this
> issue.
>
Hi. I know not much about load balancing, Radware or clustered Tomcats.
But I can tell you that over the years, I have encountered numerous
cases of inconsistent behaviours of IE, varying between versions,
sub-versions and patches, and even between different workstations having
the exact same version of IE, but having different other software
packages installed.
For instance, there are cases where, for no very apparent or documented
reason, IE will issue a HEAD request for a URL, prior to issuing a GET
or POST to that same URL. Presumably (but that is pure speculation on
my part) that is to find out in advance what kind of response it is
likely to get afterward.
Maybe that can explain what you're seeing ?
André
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