0 will mean no balancing occurs; otherwise it represents the ratio
between the highest-loaded server and the average load, times 100 (i.e.
a value of 150 means a 1.5x ratio), assuming equal weights.
---
include/types/lb_chash.h | 1 +
src/cfgparse.c | 13 +++++++++++++
2 files changed, 14 insertions(+)
diff --git a/include/types/lb_chash.h b/include/types/lb_chash.h
index 5991ce9..b711636 100644
--- a/include/types/lb_chash.h
+++ b/include/types/lb_chash.h
@@ -30,6 +30,7 @@ struct lb_chash {
struct eb_root act; /* weighted chash entries of active servers */
struct eb_root bck; /* weighted chash entries of backup servers */
struct eb32_node *last; /* last node found in case of round robin (or
NULL) */
+ int balance_factor; /* load balancing factor * 100, 0 if disabled */
};
#endif /* _TYPES_LB_CHASH_H */
diff --git a/src/cfgparse.c b/src/cfgparse.c
index 7b58ef6..376c8b0 100644
--- a/src/cfgparse.c
+++ b/src/cfgparse.c
@@ -5932,6 +5932,19 @@ stats_error_parsing:
}
}
}
+ else if (strcmp(args[0], "hash-balance-factor") == 0) {
+ if (*(args[1]) == 0) {
+ Alert("parsing [%s:%d] : '%s' expects an integer
argument.\n", file, linenum, args[0]);
+ err_code |= ERR_ALERT | ERR_FATAL;
+ goto out;
+ }
+ curproxy->lbprm.chash.balance_factor = atol(args[1]);
+ if (curproxy->lbprm.chash.balance_factor != 0 &&
curproxy->lbprm.chash.balance_factor <= 100) {
+ Alert("parsing [%s:%d] : '%s' must be 0 or greater than
100.\n", file, linenum, args[0]);
+ err_code |= ERR_ALERT | ERR_FATAL;
+ goto out;
+ }
+ }
else if (strcmp(args[0], "unique-id-format") == 0) {
if (!*(args[1])) {
Alert("parsing [%s:%d] : %s expects an argument.\n",
file, linenum, args[0]);
--
2.9.3
