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fix: upstream shared memory zone size #2121

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fix: upstream shared memory zone size #2121

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6 changes: 3 additions & 3 deletions content/nginx/admin-guide/load-balancer/dynamic-configuration-api.md
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Original file line number Diff line number Diff line change
Expand Up @@ -65,7 +65,7 @@ Prior to using the dynamic configuration feature, make sure that you have the fo
http {
# ...
upstream appservers {
zone appservers 64k;
zone appservers 2048k;

server appserv1.example.com weight=5;
server appserv2.example.com:8080 fail_timeout=5s;
Expand Down Expand Up @@ -100,7 +100,7 @@ http {
# ...
# Configuration of the server group
upstream appservers {
zone appservers 64k;
zone appservers 2048k;

server appserv1.example.com weight=5;
server appserv2.example.com:8080 fail_timeout=5s;
Expand Down Expand Up @@ -195,7 +195,7 @@ To make the changes persist across configuration reloads, move the list of upstr
http {
# ...
upstream appservers {
zone appservers 64k;
zone appservers 2048k;
state /var/lib/nginx/state/appservers.conf;

# All servers are defined in the state file
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4 changes: 2 additions & 2 deletions content/nginx/admin-guide/load-balancer/http-health-check.md
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Expand Up @@ -97,7 +97,7 @@ To enable active health checks:
```nginx
http {
upstream backend {
zone backend 64k;
zone backend 2048k;
server backend1.example.com;
server backend2.example.com;
server backend3.example.com;
Expand Down Expand Up @@ -216,7 +216,7 @@ Mandatory health checks can be marked as persistent, so that the previous state

```nginx
upstream my_upstream {
zone my_upstream 64k;
zone my_upstream 2048k;
server backend1.example.com slow_start=30s;
}

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2 changes: 1 addition & 1 deletion content/nginx/releases.md
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Expand Up @@ -58,7 +58,7 @@ NGINX Plus PLS.37.0.0.1 LTS is the first LTS release.
- [NGINX control REST API]({{< ref "/nginx/admin-guide/basic-functionality/runtime-control.md#control-api" >}}) that provides an HTTP interface for controlling an NGINX Plus instance in addition to signal-based control.
- JSON-formatted error logs: the [`json`](https://nginx.org/en/docs/ngx_core_module.html#error_log_json) parameter of the [`error_log`](https://nginx.org/en/docs/ngx_core_module.html#error_log) directive.
- Customer error log variables: the [`error_log_tag`](https://nginx.org/en/docs/http/ngx_http_core_module.html#error_log_tag) directive.
- Enhanced upstream latency metrics with latency histograms: the `response_time_hist` data for each [HTTP upstream](https://nginx.org/en/docs/http/ngx_http_api_module.html#def_nginx_http_upstream).
- Enhanced upstream latency metrics with latency histograms: the `response_time_hist` data for each [HTTP upstream](https://nginx.org/en/docs/http/ngx_http_api_module.html#def_nginx_http_upstream). As these metrics require additional memory, ensure that [upstream shared memory zones](https://nginx.org/en/docs/http/ngx_http_upstream_module.html#zone) are at least `2048k`.
- Basic authentication for [HTTP CONNECT forward proxy](https://nginx.org/en/docs/http/ngx_http_tunnel_module.html).
- Encrypted Client Hello (ECH) support: the [`ssl_ech_file`](https://nginx.org/en/docs/http/ngx_http_ssl_module.html#ssl_ech_file) directive.
- Multipath TCP support: the [`multipath`](https://nginx.org/en/docs/http/ngx_http_core_module.html#multipath) parameter of the [`listen`](https://nginx.org/en/docs/http/ngx_http_core_module.html#listen) directive.
Expand Down
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