This only works with HTTP or HTTPS profile:
Try the next with your http farm:
in command line open your file
/usr/local/zenloadbalancer/config/yourfarmname_pound.cfg
search the line :
RewriteLocation 0
change 0 by 1, save changes and restart your http farm in the web gui.
Run your tests.
RewriteLocation admit 0 1 and 2, try the three values and repeat your
tests.
0 do nothing 1 and 2 modify Location headers.
Also send me a screenshot with the web loaded OK and web loaded with error
and the HTML code to take a look in your html problem.
Regards!
2012/6/5 Emilio Campos <[email protected]>
> TCP is a load balancing in RAW mode, the load balancer doesn't modify or
> the same modify nothing.
>
> If you configure your TCP farm, and you run a test, navigate some time in
> your web, with more than one backend and your problem occur (sorry, your
> mail is not clear for me) then you have a problem in your code. In this
> case you have to check your application.
>
> Regards
>
>
>
>
> 2012/6/5 Matthew DiSabatino <[email protected]>
>
>> I deleted the HTTP farm and rebuilt it with a TCP farm. I set the load
>> balancing algorithm to Round Robin, and turned off persistence and the
>> problem has effectively gone away. I say effectively because the HTML
>> still renders incorrectly the first time the web page is refreshed after
>> the ZenLB changes which backend server it is pointing to. ****
>>
>> ** **
>>
>> More specifically:****
>>
>> ** **
>>
>> **1. **The web page is being served from IISSERVER01. The web page
>> loads without error on my PC.****
>>
>> **2. **I stop the IIS service on IISSERVER01****
>>
>> **3. **I refresh the web page on my PC****
>>
>> **4. **For a few seconds, I get a “Not Found. HTTP Error 404” no
>> matter how many times I refresh.****
>>
>> **5. **The LB points to IISSERVER02****
>>
>> **6. **After refreshing, the web page loads, but with the same
>> CSS-Error-esque sizing issues (<li> being the full width of the screen and
>> arranged one on top of the other instead of a hundred pixels wide and side
>> by side, for example).****
>>
>> **7. **If I refresh once or twice, the page finally renders
>> correctly, and is then fine no matter how many times I refresh.****
>>
>> ** **
>>
>> So, it eventually works, but not immediately after the web page is being
>> served from a different web server. This is an acceptable quirk for web
>> pages (our end users will just have to hit F5 a couple times), but I’m sure
>> we’d still get support calls about it. ****
>>
>> ** **
>>
>> Any ideas on how to avoid even this minor issue?****
>>
>> ** **
>>
>> -Matthew D****
>>
>> ** **
>>
>> ** **
>>
>> *From:* Emilio Campos [mailto:[email protected]]
>> *Sent:* Monday, June 04, 2012 3:31 PM
>>
>> *To:* [email protected]
>> *Subject:* Re: [Zenloadbalancer-support] Problem rendering HTML on load
>> balanced web servers****
>>
>> ** **
>>
>> Matthew try the same tests with the TCP profile and tell us if with this
>> profile your problem is reproduced
>>
>>
>> Regards****
>>
>> 2012/6/4 Matthew DiSabatino <[email protected]>****
>>
>> The HTML code is copied identically from the same source. In fact, I had
>> this problem when all three web servers pointed to the same files on our
>> SAN. And if I put any two of the servers in the farm into maintenance mode,
>> the page loads fine. If there is more than one active server in the farm,
>> the HTML renders strangely about 75% of the time. Often, one of the servers
>> will render incorrectly, but when I reload the page, it renders correctly.
>> Which server it is doesn't seem to matter. IT also doesn't matter which
>> server is active by itself. It always works if there is only one server.
>> Similarly, it doesn't matter which combination of servers I have active
>> simultaneously; if I have more than one server active in the farm, the HTML
>> renders incorrectly about 75% of the time.
>>
>> Oh, and the farm is an HTTP farm.
>>
>> This really has me scratching my head...
>>
>> Matthew DiSabatino
>> Systems Administrator
>> WD-40 Company
>> 619-275-9351 Direct****
>>
>>
>>
>> -----Original Message-----
>> From: Emilio Campos [mailto:[email protected]]
>> Sent: Monday, June 04, 2012 10:46 AM
>> To: [email protected]
>> Subject: Re: [Zenloadbalancer-support] Problem rendering HTML on load
>> balanced web servers
>>
>> One of your backends is not equal in web content that the others.
>>
>> Try the next
>> Configure the farm with only one backend and navigate in the url to check
>> that the css is loaded ok.
>> After delete this backend and add other and try again this test with all
>> your backend.
>>
>> You should find the backend that has the diferent code Also chech how
>> the url incorrect is generated. If this url for css is bad check if you see
>> the backend ip.
>>
>> Zen doesnt modify web content only does load balancing.
>>
>> What type of profile are you using? Tcp or http?
>>
>> 2012/6/4, Matthew DiSabatino <[email protected]>:
>> > We are currently evaluating Zen Load balancer v2.0 stable, and I'm
>> > having a weird issue. HTML is intermittently not rending correctly on
>> > load-balanced web sites. The HTML renders correctly if I point a
>> > browser directly to each web server, but not if the HTML is served
>> through the ZenLB.
>> >
>> > I have two test farms set up: iistest and Intranet. iistest is just
>> > the default website IIS website on port 80 on each server. Intranet is
>> > a vanilla, out of the box ASP.NET 4.0 website (generated by Visual
>> > Studio 2010), running on port 80 on a separate IP address on each
>> > server (10.0.2.161, 10.0.2.181,10.0.8.161). Intranet is an HTTP farm
>> > with a VIP of 10.0.2.201, with no persistence. Each web server has a
>> > copy of the same website, with the exception of adding text in the
>> > HTML of the server's name (so I could tell which web server is serving
>> the data).
>> >
>> > Specifically, there seems to be an issue with widths and placement of
>> > divs, almost as though the CSS isn't being processed correctly. Again,
>> > pointing a browser directly to each web server works, and about 25% of
>> > the time, the HTML renders correctly through the LB.
>> >
>> > Any ideas?
>> >
>> > -Matthew D
>> >
>>
>> --
>> Enviado desde mi dispositivo móvil
>>
>> Load balancer distribution - Open Source Project
>> http://www.zenloadbalancer.com Distribution list (subscribe):
>> [email protected]****
>>
>>
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>> Distribution list (subscribe):
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>> threat landscape has changed and how IT managers can respond. Discussions
>> will include endpoint security, mobile security and the latest in malware
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> http://www.zenloadbalancer.com
> Distribution list (subscribe):
> [email protected]
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