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Upstream: max_conns.

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This commit is contained in:
Ruslan Ermilov 2016-09-22 19:32:47 +03:00
parent 5d1226a4ce
commit 8425546542
13 changed files with 109 additions and 2 deletions
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9
src/http/modules/ngx_http_upstream_hash_module.c
View file

@ -242,6 +242,10 @@ ngx_http_upstream_get_hash_peer(ngx_peer_connection_t *pc, void *data)
goto next;
}
if (peer->max_conns && peer->conns >= peer->max_conns) {
goto next;
}
break;
next:
@ -548,6 +552,10 @@ ngx_http_upstream_get_chash_peer(ngx_peer_connection_t *pc, void *data)
continue;
}
if (peer->max_conns && peer->conns >= peer->max_conns) {
continue;
}
peer->current_weight += peer->effective_weight;
total += peer->effective_weight;
@ -647,6 +655,7 @@ ngx_http_upstream_hash(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
uscf->flags = NGX_HTTP_UPSTREAM_CREATE
|NGX_HTTP_UPSTREAM_WEIGHT
|NGX_HTTP_UPSTREAM_MAX_CONNS
|NGX_HTTP_UPSTREAM_MAX_FAILS
|NGX_HTTP_UPSTREAM_FAIL_TIMEOUT
|NGX_HTTP_UPSTREAM_DOWN;

5
src/http/modules/ngx_http_upstream_ip_hash_module.c
View file

@ -212,6 +212,10 @@ ngx_http_upstream_get_ip_hash_peer(ngx_peer_connection_t *pc, void *data)
goto next;
}
if (peer->max_conns && peer->conns >= peer->max_conns) {
goto next;
}
break;
next:
@ -259,6 +263,7 @@ ngx_http_upstream_ip_hash(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
uscf->flags = NGX_HTTP_UPSTREAM_CREATE
|NGX_HTTP_UPSTREAM_WEIGHT
|NGX_HTTP_UPSTREAM_MAX_CONNS
|NGX_HTTP_UPSTREAM_MAX_FAILS
|NGX_HTTP_UPSTREAM_FAIL_TIMEOUT
|NGX_HTTP_UPSTREAM_DOWN;

9
src/http/modules/ngx_http_upstream_least_conn_module.c
View file

@ -154,6 +154,10 @@ ngx_http_upstream_get_least_conn_peer(ngx_peer_connection_t *pc, void *data)
continue;
}
if (peer->max_conns && peer->conns >= peer->max_conns) {
continue;
}
/*
* select peer with least number of connections; if there are
* multiple peers with the same number of connections, select
@ -209,6 +213,10 @@ ngx_http_upstream_get_least_conn_peer(ngx_peer_connection_t *pc, void *data)
continue;
}
if (peer->max_conns && peer->conns >= peer->max_conns) {
continue;
}
peer->current_weight += peer->effective_weight;
total += peer->effective_weight;
@ -296,6 +304,7 @@ ngx_http_upstream_least_conn(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
uscf->flags = NGX_HTTP_UPSTREAM_CREATE
|NGX_HTTP_UPSTREAM_WEIGHT
|NGX_HTTP_UPSTREAM_MAX_CONNS
|NGX_HTTP_UPSTREAM_MAX_FAILS
|NGX_HTTP_UPSTREAM_FAIL_TIMEOUT
|NGX_HTTP_UPSTREAM_DOWN

20
src/http/ngx_http_upstream.c
View file

@ -5444,6 +5444,7 @@ ngx_http_upstream(ngx_conf_t *cf, ngx_command_t *cmd, void *dummy)
uscf = ngx_http_upstream_add(cf, &u, NGX_HTTP_UPSTREAM_CREATE
|NGX_HTTP_UPSTREAM_WEIGHT
|NGX_HTTP_UPSTREAM_MAX_CONNS
|NGX_HTTP_UPSTREAM_MAX_FAILS
|NGX_HTTP_UPSTREAM_FAIL_TIMEOUT
|NGX_HTTP_UPSTREAM_DOWN
@ -5545,7 +5546,7 @@ ngx_http_upstream_server(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
time_t fail_timeout;
ngx_str_t *value, s;
ngx_url_t u;
ngx_int_t weight, max_fails;
ngx_int_t weight, max_conns, max_fails;
ngx_uint_t i;
ngx_http_upstream_server_t *us;
@ -5559,6 +5560,7 @@ ngx_http_upstream_server(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
value = cf->args->elts;
weight = 1;
max_conns = 0;
max_fails = 1;
fail_timeout = 10;
@ -5579,6 +5581,21 @@ ngx_http_upstream_server(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
continue;
}
if (ngx_strncmp(value[i].data, "max_conns=", 10) == 0) {
if (!(uscf->flags & NGX_HTTP_UPSTREAM_MAX_CONNS)) {
goto not_supported;
}
max_conns = ngx_atoi(&value[i].data[10], value[i].len - 10);
if (max_conns == NGX_ERROR) {
goto invalid;
}
continue;
}
if (ngx_strncmp(value[i].data, "max_fails=", 10) == 0) {
if (!(uscf->flags & NGX_HTTP_UPSTREAM_MAX_FAILS)) {
@ -5655,6 +5672,7 @@ ngx_http_upstream_server(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
us->addrs = u.addrs;
us->naddrs = u.naddrs;
us->weight = weight;
us->max_conns = max_conns;
us->max_fails = max_fails;
us->fail_timeout = fail_timeout;

2
src/http/ngx_http_upstream.h
View file

@ -95,6 +95,7 @@ typedef struct {
ngx_addr_t *addrs;
ngx_uint_t naddrs;
ngx_uint_t weight;
ngx_uint_t max_conns;
ngx_uint_t max_fails;
time_t fail_timeout;
@ -109,6 +110,7 @@ typedef struct {
#define NGX_HTTP_UPSTREAM_FAIL_TIMEOUT 0x0008
#define NGX_HTTP_UPSTREAM_DOWN 0x0010
#define NGX_HTTP_UPSTREAM_BACKUP 0x0020
#define NGX_HTTP_UPSTREAM_MAX_CONNS 0x0100
struct ngx_http_upstream_srv_conf_s {

13
src/http/ngx_http_upstream_round_robin.c
View file

@ -92,6 +92,7 @@ ngx_http_upstream_init_round_robin(ngx_conf_t *cf,
peer[n].weight = server[i].weight;
peer[n].effective_weight = server[i].weight;
peer[n].current_weight = 0;
peer[n].max_conns = server[i].max_conns;
peer[n].max_fails = server[i].max_fails;
peer[n].fail_timeout = server[i].fail_timeout;
peer[n].down = server[i].down;
@ -155,6 +156,7 @@ ngx_http_upstream_init_round_robin(ngx_conf_t *cf,
peer[n].weight = server[i].weight;
peer[n].effective_weight = server[i].weight;
peer[n].current_weight = 0;
peer[n].max_conns = server[i].max_conns;
peer[n].max_fails = server[i].max_fails;
peer[n].fail_timeout = server[i].fail_timeout;
peer[n].down = server[i].down;
@ -223,6 +225,7 @@ ngx_http_upstream_init_round_robin(ngx_conf_t *cf,
peer[i].weight = 1;
peer[i].effective_weight = 1;
peer[i].current_weight = 0;
peer[i].max_conns = 0;
peer[i].max_fails = 1;
peer[i].fail_timeout = 10;
*peerp = &peer[i];
@ -337,6 +340,7 @@ ngx_http_upstream_create_round_robin_peer(ngx_http_request_t *r,
peer[0].weight = 1;
peer[0].effective_weight = 1;
peer[0].current_weight = 0;
peer[0].max_conns = 0;
peer[0].max_fails = 1;
peer[0].fail_timeout = 10;
peers->peer = peer;
@ -370,6 +374,7 @@ ngx_http_upstream_create_round_robin_peer(ngx_http_request_t *r,
peer[i].weight = 1;
peer[i].effective_weight = 1;
peer[i].current_weight = 0;
peer[i].max_conns = 0;
peer[i].max_fails = 1;
peer[i].fail_timeout = 10;
*peerp = &peer[i];
@ -432,6 +437,10 @@ ngx_http_upstream_get_round_robin_peer(ngx_peer_connection_t *pc, void *data)
goto failed;
}
if (peer->max_conns && peer->conns >= peer->max_conns) {
goto failed;
}
rrp->current = peer;
} else {
@ -533,6 +542,10 @@ ngx_http_upstream_get_peer(ngx_http_upstream_rr_peer_data_t *rrp)
continue;
}
if (peer->max_conns && peer->conns >= peer->max_conns) {
continue;
}
peer->current_weight += peer->effective_weight;
total += peer->effective_weight;

1
src/http/ngx_http_upstream_round_robin.h
View file

@ -27,6 +27,7 @@ struct ngx_http_upstream_rr_peer_s {
ngx_int_t weight;
ngx_uint_t conns;
ngx_uint_t max_conns;
ngx_uint_t fails;
time_t accessed;

20
src/stream/ngx_stream_upstream.c
View file

@ -322,6 +322,7 @@ ngx_stream_upstream(ngx_conf_t *cf, ngx_command_t *cmd, void *dummy)
uscf = ngx_stream_upstream_add(cf, &u, NGX_STREAM_UPSTREAM_CREATE
|NGX_STREAM_UPSTREAM_WEIGHT
|NGX_STREAM_UPSTREAM_MAX_CONNS
|NGX_STREAM_UPSTREAM_MAX_FAILS
|NGX_STREAM_UPSTREAM_FAIL_TIMEOUT
|NGX_STREAM_UPSTREAM_DOWN
@ -407,7 +408,7 @@ ngx_stream_upstream_server(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
time_t fail_timeout;
ngx_str_t *value, s;
ngx_url_t u;
ngx_int_t weight, max_fails;
ngx_int_t weight, max_conns, max_fails;
ngx_uint_t i;
ngx_stream_upstream_server_t *us;
@ -421,6 +422,7 @@ ngx_stream_upstream_server(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
value = cf->args->elts;
weight = 1;
max_conns = 0;
max_fails = 1;
fail_timeout = 10;
@ -441,6 +443,21 @@ ngx_stream_upstream_server(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
continue;
}
if (ngx_strncmp(value[i].data, "max_conns=", 10) == 0) {
if (!(uscf->flags & NGX_STREAM_UPSTREAM_MAX_CONNS)) {
goto not_supported;
}
max_conns = ngx_atoi(&value[i].data[10], value[i].len - 10);
if (max_conns == NGX_ERROR) {
goto invalid;
}
continue;
}
if (ngx_strncmp(value[i].data, "max_fails=", 10) == 0) {
if (!(uscf->flags & NGX_STREAM_UPSTREAM_MAX_FAILS)) {
@ -522,6 +539,7 @@ ngx_stream_upstream_server(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
us->addrs = u.addrs;
us->naddrs = u.naddrs;
us->weight = weight;
us->max_conns = max_conns;
us->max_fails = max_fails;
us->fail_timeout = fail_timeout;

2
src/stream/ngx_stream_upstream.h
View file

@ -21,6 +21,7 @@
#define NGX_STREAM_UPSTREAM_FAIL_TIMEOUT 0x0008
#define NGX_STREAM_UPSTREAM_DOWN 0x0010
#define NGX_STREAM_UPSTREAM_BACKUP 0x0020
#define NGX_STREAM_UPSTREAM_MAX_CONNS 0x0100
typedef struct {
@ -50,6 +51,7 @@ typedef struct {
ngx_addr_t *addrs;
ngx_uint_t naddrs;
ngx_uint_t weight;
ngx_uint_t max_conns;
ngx_uint_t max_fails;
time_t fail_timeout;

9
src/stream/ngx_stream_upstream_hash_module.c
View file

@ -241,6 +241,10 @@ ngx_stream_upstream_get_hash_peer(ngx_peer_connection_t *pc, void *data)
goto next;
}
if (peer->max_conns && peer->conns >= peer->max_conns) {
goto next;
}
break;
next:
@ -549,6 +553,10 @@ ngx_stream_upstream_get_chash_peer(ngx_peer_connection_t *pc, void *data)
continue;
}
if (peer->max_conns && peer->conns >= peer->max_conns) {
continue;
}
peer->current_weight += peer->effective_weight;
total += peer->effective_weight;
@ -646,6 +654,7 @@ ngx_stream_upstream_hash(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
uscf->flags = NGX_STREAM_UPSTREAM_CREATE
|NGX_STREAM_UPSTREAM_WEIGHT
|NGX_STREAM_UPSTREAM_MAX_CONNS
|NGX_STREAM_UPSTREAM_MAX_FAILS
|NGX_STREAM_UPSTREAM_FAIL_TIMEOUT
|NGX_STREAM_UPSTREAM_DOWN;

9
src/stream/ngx_stream_upstream_least_conn_module.c
View file

@ -150,6 +150,10 @@ ngx_stream_upstream_get_least_conn_peer(ngx_peer_connection_t *pc, void *data)
continue;
}
if (peer->max_conns && peer->conns >= peer->max_conns) {
continue;
}
/*
* select peer with least number of connections; if there are
* multiple peers with the same number of connections, select
@ -205,6 +209,10 @@ ngx_stream_upstream_get_least_conn_peer(ngx_peer_connection_t *pc, void *data)
continue;
}
if (peer->max_conns && peer->conns >= peer->max_conns) {
continue;
}
peer->current_weight += peer->effective_weight;
total += peer->effective_weight;
@ -292,6 +300,7 @@ ngx_stream_upstream_least_conn(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
uscf->flags = NGX_STREAM_UPSTREAM_CREATE
|NGX_STREAM_UPSTREAM_WEIGHT
|NGX_STREAM_UPSTREAM_MAX_CONNS
|NGX_STREAM_UPSTREAM_MAX_FAILS
|NGX_STREAM_UPSTREAM_FAIL_TIMEOUT
|NGX_STREAM_UPSTREAM_DOWN

11
src/stream/ngx_stream_upstream_round_robin.c
View file

@ -96,6 +96,7 @@ ngx_stream_upstream_init_round_robin(ngx_conf_t *cf,
peer[n].weight = server[i].weight;
peer[n].effective_weight = server[i].weight;
peer[n].current_weight = 0;
peer[n].max_conns = server[i].max_conns;
peer[n].max_fails = server[i].max_fails;
peer[n].fail_timeout = server[i].fail_timeout;
peer[n].down = server[i].down;
@ -159,6 +160,7 @@ ngx_stream_upstream_init_round_robin(ngx_conf_t *cf,
peer[n].weight = server[i].weight;
peer[n].effective_weight = server[i].weight;
peer[n].current_weight = 0;
peer[n].max_conns = server[i].max_conns;
peer[n].max_fails = server[i].max_fails;
peer[n].fail_timeout = server[i].fail_timeout;
peer[n].down = server[i].down;
@ -227,6 +229,7 @@ ngx_stream_upstream_init_round_robin(ngx_conf_t *cf,
peer[i].weight = 1;
peer[i].effective_weight = 1;
peer[i].current_weight = 0;
peer[i].max_conns = 0;
peer[i].max_fails = 1;
peer[i].fail_timeout = 10;
*peerp = &peer[i];
@ -438,6 +441,10 @@ ngx_stream_upstream_get_round_robin_peer(ngx_peer_connection_t *pc, void *data)
goto failed;
}
if (peer->max_conns && peer->conns >= peer->max_conns) {
goto failed;
}
rrp->current = peer;
} else {
@ -539,6 +546,10 @@ ngx_stream_upstream_get_peer(ngx_stream_upstream_rr_peer_data_t *rrp)
continue;
}
if (peer->max_conns && peer->conns >= peer->max_conns) {
continue;
}
peer->current_weight += peer->effective_weight;
total += peer->effective_weight;

1
src/stream/ngx_stream_upstream_round_robin.h
View file

@ -27,6 +27,7 @@ struct ngx_stream_upstream_rr_peer_s {
ngx_int_t weight;
ngx_uint_t conns;
ngx_uint_t max_conns;
ngx_uint_t fails;
time_t accessed;