Mercurial > hg > nginx
changeset 7750:90cc7194e993
Upstream: excluded down servers from the next_upstream tries.
Previously, the number of next_upstream tries included servers marked
as "down", resulting in "no live upstreams" with the code 502 instead
of the code derived from an attempt to connect to the last tried "up"
server (ticket #2096).
| author | Ruslan Ermilov <ru@nginx.com> |
|---|---|
| date | Fri, 27 Nov 2020 00:01:20 +0300 |
| parents | ac09a57ec50d |
| children | 7efae6b4cfb0 |
| files | src/http/ngx_http_upstream_round_robin.c src/http/ngx_http_upstream_round_robin.h src/stream/ngx_stream_upstream_round_robin.c src/stream/ngx_stream_upstream_round_robin.h |
| diffstat | 4 files changed, 36 insertions(+), 6 deletions(-) [+] |
line wrap: on
line diff
--- a/src/http/ngx_http_upstream_round_robin.c +++ b/src/http/ngx_http_upstream_round_robin.c @@ -10,8 +10,8 @@ #include <ngx_http.h> -#define ngx_http_upstream_tries(p) ((p)->number \ - + ((p)->next ? (p)->next->number : 0)) +#define ngx_http_upstream_tries(p) ((p)->tries \ + + ((p)->next ? (p)->next->tries : 0)) static ngx_http_upstream_rr_peer_t *ngx_http_upstream_get_peer( @@ -32,7 +32,7 @@ ngx_http_upstream_init_round_robin(ngx_c ngx_http_upstream_srv_conf_t *us) { ngx_url_t u; - ngx_uint_t i, j, n, w; + ngx_uint_t i, j, n, w, t; ngx_http_upstream_server_t *server; ngx_http_upstream_rr_peer_t *peer, **peerp; ngx_http_upstream_rr_peers_t *peers, *backup; @@ -44,6 +44,7 @@ ngx_http_upstream_init_round_robin(ngx_c n = 0; w = 0; + t = 0; for (i = 0; i < us->servers->nelts; i++) { if (server[i].backup) { @@ -52,6 +53,10 @@ ngx_http_upstream_init_round_robin(ngx_c n += server[i].naddrs; w += server[i].naddrs * server[i].weight; + + if (!server[i].down) { + t += server[i].naddrs; + } } if (n == 0) { @@ -75,6 +80,7 @@ ngx_http_upstream_init_round_robin(ngx_c peers->number = n; peers->weighted = (w != n); peers->total_weight = w; + peers->tries = t; peers->name = &us->host; n = 0; @@ -110,6 +116,7 @@ ngx_http_upstream_init_round_robin(ngx_c n = 0; w = 0; + t = 0; for (i = 0; i < us->servers->nelts; i++) { if (!server[i].backup) { @@ -118,6 +125,10 @@ ngx_http_upstream_init_round_robin(ngx_c n += server[i].naddrs; w += server[i].naddrs * server[i].weight; + + if (!server[i].down) { + t += server[i].naddrs; + } } if (n == 0) { @@ -139,6 +150,7 @@ ngx_http_upstream_init_round_robin(ngx_c backup->number = n; backup->weighted = (w != n); backup->total_weight = w; + backup->tries = t; backup->name = &us->host; n = 0; @@ -214,6 +226,7 @@ ngx_http_upstream_init_round_robin(ngx_c peers->number = n; peers->weighted = 0; peers->total_weight = n; + peers->tries = n; peers->name = &us->host; peerp = &peers->peer; @@ -332,6 +345,7 @@ ngx_http_upstream_create_round_robin_pee peers->single = (ur->naddrs == 1); peers->number = ur->naddrs; + peers->tries = ur->naddrs; peers->name = &ur->host; if (ur->sockaddr) {
--- a/src/http/ngx_http_upstream_round_robin.h +++ b/src/http/ngx_http_upstream_round_robin.h @@ -68,6 +68,7 @@ struct ngx_http_upstream_rr_peers_s { #endif ngx_uint_t total_weight; + ngx_uint_t tries; unsigned single:1; unsigned weighted:1;
--- a/src/stream/ngx_stream_upstream_round_robin.c +++ b/src/stream/ngx_stream_upstream_round_robin.c @@ -10,8 +10,8 @@ #include <ngx_stream.h> -#define ngx_stream_upstream_tries(p) ((p)->number \ - + ((p)->next ? (p)->next->number : 0)) +#define ngx_stream_upstream_tries(p) ((p)->tries \ + + ((p)->next ? (p)->next->tries : 0)) static ngx_stream_upstream_rr_peer_t *ngx_stream_upstream_get_peer( @@ -38,7 +38,7 @@ ngx_stream_upstream_init_round_robin(ngx ngx_stream_upstream_srv_conf_t *us) { ngx_url_t u; - ngx_uint_t i, j, n, w; + ngx_uint_t i, j, n, w, t; ngx_stream_upstream_server_t *server; ngx_stream_upstream_rr_peer_t *peer, **peerp; ngx_stream_upstream_rr_peers_t *peers, *backup; @@ -50,6 +50,7 @@ ngx_stream_upstream_init_round_robin(ngx n = 0; w = 0; + t = 0; for (i = 0; i < us->servers->nelts; i++) { if (server[i].backup) { @@ -58,6 +59,10 @@ ngx_stream_upstream_init_round_robin(ngx n += server[i].naddrs; w += server[i].naddrs * server[i].weight; + + if (!server[i].down) { + t += server[i].naddrs; + } } if (n == 0) { @@ -81,6 +86,7 @@ ngx_stream_upstream_init_round_robin(ngx peers->number = n; peers->weighted = (w != n); peers->total_weight = w; + peers->tries = t; peers->name = &us->host; n = 0; @@ -116,6 +122,7 @@ ngx_stream_upstream_init_round_robin(ngx n = 0; w = 0; + t = 0; for (i = 0; i < us->servers->nelts; i++) { if (!server[i].backup) { @@ -124,6 +131,10 @@ ngx_stream_upstream_init_round_robin(ngx n += server[i].naddrs; w += server[i].naddrs * server[i].weight; + + if (!server[i].down) { + t += server[i].naddrs; + } } if (n == 0) { @@ -145,6 +156,7 @@ ngx_stream_upstream_init_round_robin(ngx backup->number = n; backup->weighted = (w != n); backup->total_weight = w; + backup->tries = t; backup->name = &us->host; n = 0; @@ -220,6 +232,7 @@ ngx_stream_upstream_init_round_robin(ngx peers->number = n; peers->weighted = 0; peers->total_weight = n; + peers->tries = n; peers->name = &us->host; peerp = &peers->peer; @@ -342,6 +355,7 @@ ngx_stream_upstream_create_round_robin_p peers->single = (ur->naddrs == 1); peers->number = ur->naddrs; + peers->tries = ur->naddrs; peers->name = &ur->host; if (ur->sockaddr) {