[pve-devel] pveproxy: I might have discovered a bug

[Alexandre DERUMIER]

>>My feeling is that the browser generates those requests (but they do not show up in firebug).

I never see this behaviour with firebug..this is strange...

Maybe some logs on pveproxy and pvedaemon could tell us from where are coming the duplicate requests ?

Or sniffing http requests with wireshark to be sure.


(Note that I can't reproduce it)



----- Mail original ----- 

De: "Dietmar Maurer" <dietmar at proxmox.com> 
À: "Alexandre DERUMIER" <aderumier at odiso.com>, "Michael Rasmussen" <mir at datanom.net> 
Cc: pve-devel at pve.proxmox.com 
Envoyé: Lundi 24 Juin 2013 09:57:10 
Objet: RE: [pve-devel] pveproxy: I might have discovered a bug 

> I'm not sure, but maybe it's comming from http_request() from pveproxy to 
> pvedaemon 
> 
> from http://search.cpan.org/~gaas/HTTP-Message-6.06/lib/HTTP/Request.pm 
> 
> " 
> persistent => $boolean 
> Try to create/reuse a persistent connection. When this flag is set (default: true 
> for idempotent requests, false for all others), then http_request tries to re-use 
> an existing (previously-created) persistent connection to the host and, failing 
> that, tries to create a new one. 
> 
> Requests failing in certain ways will be automatically retried once, which is 
> dangerous for non-idempotent requests, which is why it defaults to off for 
> them. The reason for this is because the bozos who designed HTTP/1.1 made it 
> impossible to distinguish between a fatal error and a normal connection 
> timeout, so you never know whether there was a problem with your request or 
> not. 
> 
> When reusing an existent connection, many parameters (such as TLS context) 
> will be ignored. See the session parameter for a workaround. 
> " 
> 
> 
> If I understand, by default, GET from proxy to pvedaemon are retried if 
> pvedaemon timeout. 

I can simply not reproduce that bug. I also set 'recurse => 0', so that should not happen. 
I also tested with 'persistent => 0', and still got duplicate request. 

My feeling is that the browser generates those requests (but they do not show up in firebug).