Hi Baptiste,
I tried using stick-table and it worked better. But I still seeing sessions being ended because of the request being directed to the wrong backend server. When I don't have any persistence enabled I get around 50% errors. But using stick-tables give me around 15-20% errors. And the pattern of the errors looks pretty weird. It is almost like the sessions are released in some way after a certain time. (See the attached image which shows how the errors are appearing in groups every 20-30s or so during a 5min loadtest.) I tried increasing the len length and the size but the result was the same. [cid:[email protected]] Any ideas? /E -----Original Message----- From: Baptiste [mailto:[email protected]] Sent: den 14 december 2011 17:25 To: Erik Torlen Cc: [email protected] Subject: Re: Appsession and persistance Hi Erik, Forget about appsession, it's weak :) Use haproxy 1.5-dev7 and stick tables. In your backend, just add the few line below: stick-table type string len 32 size 10K stick store-response set-cookie(PHPSESSID) stick on url_param(session_id) I recommand using with "peer" keyword to get multiple haproxy to sync their tables. So in case of reload of haproxy or in case of lb failure, you could keep on redirecting users to the same backend. cheers On Wed, Dec 14, 2011 at 1:11 PM, Erik Torlen <[email protected]> wrote: > Hi, > > I am working with an application that does not use the cookie as a "normal" > application would do. > > Basically it receives PHPSESSID (currently two PHPSESSID is received, which I > would try to solve with their devs) and the returns the sessid as a query > string on every > call it makes against the web application. > > Example. > Step 1 > > GET /login > ... > HTTP/1.1 200 OK > ... > Set-Cookie: PHPSESSID=m2b6m6rkp8l02lu5boflht2pq6; path=/ > ... > > Step 2 > > GET /list/?session_id= m2b6m6rkp8l02lu5boflht2pq6 > ... > > HTTP/1.1 200 OK > ... > > > I tried using appsession for this like: > "appsession session_id len 27 timeout 1h request-learn mode query-string" > > But that does not seem to work. > > I guess I need HAProxy to get the cookie value from the Set-Cookie header and > then keeping track of it using the query-string. > Is that possible to do? If so, how is it done? > > /E
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