[Seaside] Re: Nginx reverse proxying seaside problem

[Paul DeBruicker]

Just for posterity and because I've spent time learning and forgetting this
myself several times:

If you're using Zinc by default it will send the Smalltalk errors out as
HTTP status codes, rather than have the errors pop up a debugger.  When
nginx reports a 502 error its likely a Smalltalk error in your own code.  To
have Zinc pass on the exceptions to a Smalltalk debugger start the Zinc
server with the #debugMode: option set to true. E.g.


| adaptor server |
	adaptor := ZnZincServerAdaptor startOn: self port.
	server := adaptor default server.
	server
		register;
		debugMode: true






Johan Brichau-2 wrote
> Nginx is telling you that the backend died.
> 
> Since you are not reporting any Seaside exception handler popping up, it
> may be the Zinc adaptor.
> Can you check that you have the latest Zinc adaptor?
> 
> Also: which version of Seaside are you using?
> 
> Johan
> 
> On 26 Mar 2014, at 13:03, Laurent Laffont <

> laurent.laffont@

> > wrote:
> 
>> Hi,
>>  
>> I have a simple seaside page, pharo 20, ZnZincServerAdaptor, Nginx on
>> front, configuration:
>>  
>> server {
>>     listen   80;
>>     server_name myserver.mydomain.fr;
>>  
>>     location / {
>>         proxy_pass  http://localhost:8085;                                                                                           
>>     }
>> }
>>  
>>  
>> It works except on this code in a 
>>  
>> WAComponent subclass: #MyForm
>>   renderContentOn:html
>>     .....
>>     .....
>>        html submitButton 
>> 			callback: [self answer: site];
>> 			value: 'Save'.	
>>  
>>  
>> when I click the save button, Nginx raises 502 Bad Gateway error. In
>> error log:
>>  
>>  
>> "557 upstream prematurely closed connection while reading response header
>> from upstream"
>>  
>> Any idea ?
>>  
>> Regards,
>>  
>> Laurent
>> _______________________________________________
>> seaside mailing list
>> 

> seaside at .squeakfoundation

>> http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside
> 
> _______________________________________________
> seaside mailing list

> seaside at .squeakfoundation

> http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside





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