xml/en/docs/http/ngx_http_fastcgi_module.xml | 6 ++++--
xml/en/docs/http/ngx_http_grpc_module.xml | 6 ++++--
xml/en/docs/http/ngx_http_proxy_module.xml | 8 +++++---
xml/en/docs/http/ngx_http_upstream_module.xml | 7 ++++++-
4 files changed, 19 insertions(+), 8 deletions(-)
# HG changeset patch
# User Yaroslav Zhuravlev <y...@nginx.com>
# Date 1663861151 -3600
# Thu Sep 22 16:39:11 2022 +0100
# Node ID aa3505dc76f13086703543cb079a13e48c57386e
# Parent 9708787aafc70744296baceb2aa0092401a4ef34
Documented behaviour of a single server in upstream with keepalive.
diff --git a/xml/en/docs/http/ngx_http_fastcgi_module.xml b/xml/en/docs/http/ngx_http_fastcgi_module.xml
--- a/xml/en/docs/http/ngx_http_fastcgi_module.xml
+++ b/xml/en/docs/http/ngx_http_fastcgi_module.xml
@@ -10,7 +10,7 @@
<module name="Module ngx_http_fastcgi_module"
link="/en/docs/http/ngx_http_fastcgi_module.html"
lang="en"
- rev="53">
+ rev="54">
<section id="summary">
@@ -1071,7 +1071,9 @@
<list type="tag">
<tag-name><literal>error</literal></tag-name>
-<tag-desc>an error occurred while establishing a connection with the
+<tag-desc>an error occurred while establishing
+or <link doc="ngx_http_upstream_module.xml" id="keepalive">reusing</link>
+a connection with the
server, passing a request to it, or reading the response header;</tag-desc>
<tag-name><literal>timeout</literal></tag-name>
diff --git a/xml/en/docs/http/ngx_http_grpc_module.xml b/xml/en/docs/http/ngx_http_grpc_module.xml
--- a/xml/en/docs/http/ngx_http_grpc_module.xml
+++ b/xml/en/docs/http/ngx_http_grpc_module.xml
@@ -10,7 +10,7 @@
<module name="Module ngx_http_grpc_module"
link="/en/docs/http/ngx_http_grpc_module.html"
lang="en"
- rev="8">
+ rev="9">
<section id="summary">
@@ -215,7 +215,9 @@
<list type="tag">
<tag-name><literal>error</literal></tag-name>
-<tag-desc>an error occurred while establishing a connection with the
+<tag-desc>an error occurred while establishing
+or <link doc="ngx_http_upstream_module.xml" id="keepalive">reusing</link>
+a connection with the
server, passing a request to it, or reading the response header;</tag-desc>
<tag-name><literal>timeout</literal></tag-name>
diff --git a/xml/en/docs/http/ngx_http_proxy_module.xml b/xml/en/docs/http/ngx_http_proxy_module.xml
--- a/xml/en/docs/http/ngx_http_proxy_module.xml
+++ b/xml/en/docs/http/ngx_http_proxy_module.xml
@@ -10,7 +10,7 @@
<module name="Module ngx_http_proxy_module"
link="/en/docs/http/ngx_http_proxy_module.html"
lang="en"
- rev="75">
+ rev="76">
<section id="summary">
@@ -1288,8 +1288,10 @@
<list type="tag">
<tag-name><literal>error</literal></tag-name>
-<tag-desc>an error occurred while establishing a connection with the
-server, passing a request to it, or reading the response header;</tag-desc>
+<tag-desc>an error occurred while establishing
+or <link doc="ngx_http_upstream_module.xml" id="keepalive">reusing</link>
+a connection with the
+server, passing a request to it, reading the response header;</tag-desc>
<tag-name><literal>timeout</literal></tag-name>
<tag-desc>a timeout has occurred while establishing a connection with the
diff --git a/xml/en/docs/http/ngx_http_upstream_module.xml b/xml/en/docs/http/ngx_http_upstream_module.xml
--- a/xml/en/docs/http/ngx_http_upstream_module.xml
+++ b/xml/en/docs/http/ngx_http_upstream_module.xml
@@ -10,7 +10,7 @@
<module name="Module ngx_http_upstream_module"
link="/en/docs/http/ngx_http_upstream_module.html"
lang="en"
- rev="88">
+ rev="89">
<section id="summary">
@@ -351,6 +351,11 @@
If there is only a single server in a group, <literal>max_fails</literal>,
<literal>fail_timeout</literal> and <literal>slow_start</literal> parameters
are ignored, and such a server will never be considered unavailable.
+If an error occurred while trying to reuse a
+<link id="keepalive">keepalive</link> connection
+with a single server, and the request is allowed to be passed to the
+<link doc="ngx_http_proxy_module.xml" id="proxy_next_upstream">next server</link>
+on error, such server will be selected again.
</note>
</para>
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