commit dd46cc659afe2fc947fc35b22fdd00ae9dd09ff7
author Valentin Bartenev <vbart@nginx.com> Tue Dec 25 08:02:21 2012 +0000
committer Valentin Bartenev <vbart@nginx.com> Tue Dec 25 08:02:21 2012 +0000
tree a80d73087e77d3369133ea8af74dabe185ce4ccf
parent cb90df084f417f0aa2d9adc96124b22c655cf67b

Upstream: fixed state resetting when switching to backup servers.

Based on patch by Thomas Chen (ticket #257).

src/http/ngx_http_upstream_round_robin.c

diff --git a/src/http/ngx_http_upstream_round_robin.c b/src/http/ngx_http_upstream_round_robin.c
index 4b78cff..61dce69 100644
--- a/src/http/ngx_http_upstream_round_robin.c
+++ b/src/http/ngx_http_upstream_round_robin.c
@@ -474,7 +474,9 @@
         rrp->peers = peers->next;
         pc->tries = rrp->peers->number;
 
-        n = rrp->peers->number / (8 * sizeof(uintptr_t)) + 1;
+        n = (rrp->peers->number + (8 * sizeof(uintptr_t) - 1))
+                / (8 * sizeof(uintptr_t));
+
         for (i = 0; i < n; i++) {
              rrp->tried[i] = 0;
         }