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haproxy
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[MEDIUM] in the request, always consider empty cookies as invalid. 

This solves a problem of unwanted stickyness to backup servers when some
clients incidentely memorize an empty cookie.
This commit is contained in:
willy tarreau 2006-05-10 04:27:21 +02:00
parent 4f7a101265
commit 422bb2e79f
1 changed files with 6 additions and 0 deletions
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6
haproxy.c
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@ -4082,7 +4082,13 @@ int process_cli(struct session *t) {
/* Here, we'll look for the first running server which supports the cookie.
* This allows to share a same cookie between several servers, for example
* to dedicate backup servers to specific servers only.
* However, to prevent clients from sticking to cookie-less backup server
* when they have incidentely learned an empty cookie, we simply ignore
* empty cookies and mark them as invalid.
*/
if (delim == p3)
srv = NULL;
while (srv) {
if ((srv->cklen == delim - p3) && !memcmp(p3, srv->cookie, delim - p3)) {
if (srv->state & SRV_RUNNING || t->proxy->options & PR_O_PERSIST) {