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[MINOR] cfgparse: set backends to "balance roundrobin" by default

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When a backend has no LB algo specified and is not in dispatch, proxy
nor transparent mode, use "balance roundrobin" by default instead of
complaining. This will be particularly useful with stats and redirects.
This commit is contained in:
Willy Tarreau 2009-03-15 14:06:41 +01:00
parent ff01a21ebe
commit 3cd9af228f
2 changed files with 28 additions and 26 deletions
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5
doc/configuration.txt
View File

@ -857,8 +857,9 @@ balance url_param <param> [check_post [<max_wait>]]
balance uri [len <len>] [depth <depth>]
balance url_param <param> [check_post [<max_wait>]]
The definition of the load balancing algorithm is mandatory for a backend
and limited to one per backend.
The load balancing algorithm of a backend is set to roundrobin when no other
algorithm, mode nor option have been set. The algorithm may only be set once
for each backend.
Examples :
balance roundrobin

49
src/cfgparse.c
View File

@ -3146,32 +3146,33 @@ int readcfgfile(const char *file)
cfgerr++;
}
if (curproxy->cap & PR_CAP_BE &&
((curproxy->mode != PR_MODE_HEALTH) &&
!(curproxy->options & (PR_O_TRANSP | PR_O_HTTP_PROXY)) &&
!(curproxy->lbprm.algo & BE_LB_ALGO) &&
(*(int *)&curproxy->dispatch_addr.sin_addr == 0))) {
Alert("parsing %s : %s '%s' has no dispatch address and is not in transparent or balance mode.\n",
file, proxy_type_str(curproxy), curproxy->id);
cfgerr++;
}
if ((curproxy->mode != PR_MODE_HEALTH) && (curproxy->lbprm.algo & BE_LB_ALGO)) {
if (curproxy->options & PR_O_TRANSP) {
Alert("parsing %s : %s '%s' cannot use both transparent and balance mode.\n",
file, proxy_type_str(curproxy), curproxy->id);
cfgerr++;
}
if ((curproxy->cap & PR_CAP_BE) && (curproxy->mode != PR_MODE_HEALTH)) {
if (curproxy->lbprm.algo & BE_LB_ALGO) {
if (curproxy->options & PR_O_TRANSP) {
Alert("parsing %s : %s '%s' cannot use both transparent and balance mode.\n",
file, proxy_type_str(curproxy), curproxy->id);
cfgerr++;
}
#ifdef WE_DONT_SUPPORT_SERVERLESS_LISTENERS
else if (curproxy->srv == NULL) {
Alert("parsing %s : %s '%s' needs at least 1 server in balance mode.\n",
file, proxy_type_str(curproxy), curproxy->id);
cfgerr++;
}
else if (curproxy->srv == NULL) {
Alert("parsing %s : %s '%s' needs at least 1 server in balance mode.\n",
file, proxy_type_str(curproxy), curproxy->id);
cfgerr++;
}
#endif
else if (*(int *)&curproxy->dispatch_addr.sin_addr != 0) {
Warning("parsing %s : dispatch address of %s '%s' will be ignored in balance mode.\n",
file, proxy_type_str(curproxy), curproxy->id);
else if (*(int *)&curproxy->dispatch_addr.sin_addr != 0) {
Warning("parsing %s : dispatch address of %s '%s' will be ignored in balance mode.\n",
file, proxy_type_str(curproxy), curproxy->id);
}
}
else if (!(curproxy->options & (PR_O_TRANSP | PR_O_HTTP_PROXY)) &&
(*(int *)&curproxy->dispatch_addr.sin_addr == 0)) {
/* If no LB algo is set in a backend, and we're not in
* transparent mode, dispatch mode nor proxy mode, we
* want to use balance roundrobin by default.
*/
curproxy->lbprm.algo &= ~BE_LB_ALGO;
curproxy->lbprm.algo |= BE_LB_ALGO_RR;
}
}