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| author | Vladimir Homutov <vl@nginx.com> | 2013-04-03 01:44:36 +0400 |
|---|---|---|
| committer | Aleksei Bavshin <a.bavshin@f5.com> | 2026-03-09 11:08:30 -0600 |
| commit | 104734f21888cfec6994e092073f51a0d4b0fb47 (patch) | |
| tree | 7b63045b3921ee8ae2cacd5e6a79c7be829d507b /src/event | |
| parent | dff46cd1ae0095922e7eb9cf5b32ebe1e68a5706 (diff) | |
| download | nginx-104734f21888cfec6994e092073f51a0d4b0fb47.tar.gz nginx-104734f21888cfec6994e092073f51a0d4b0fb47.tar.bz2 | |
Upstream: added sticky sessions support for upstreams.
Sticky sessions allow to route the same client to the same upstream server.
- upstream structures are extended to keep session-related information
- existing balancing modules are updated to provide an id of the selected
server (SID) in pc->sid, and to select the server, given it's SID.
- other balancing modules are allowed to set the pc->hint value to choose
the desired peer. The sticky module will not change the hint if it's
already set.
- the feature is enabled by default and can be disabled with the
"--without-http_upstream_sticky" switch of the configure script.
The following configuration can be used to enable sticky sessions for
supported balancing modules:
upstream u1 {
server 127.0.0.1:8080;
server 127.0.0.1:8081;
sticky cookie server_id expires=1h domain=.example.com path=/;
}
Co-authored-by: Ruslan Ermilov <ru@nginx.com>
Co-authored-by: Roman Arutyunyan <arut@nginx.com>
Co-authored-by: Maxim Dounin <mdounin@mdounin.ru>
Diffstat (limited to 'src/event')
| -rw-r--r-- | src/event/ngx_event_connect.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/event/ngx_event_connect.h b/src/event/ngx_event_connect.h index d3b23782e..e428e7376 100644 --- a/src/event/ngx_event_connect.h +++ b/src/event/ngx_event_connect.h @@ -60,6 +60,11 @@ struct ngx_peer_connection_s { ngx_log_t *log; +#if (NGX_HTTP_UPSTREAM_SID || NGX_COMPAT) + ngx_str_t *hint; + ngx_str_t *sid; +#endif + unsigned cached:1; unsigned transparent:1; unsigned so_keepalive:1; @@ -68,7 +73,7 @@ struct ngx_peer_connection_s { /* ngx_connection_log_error_e */ unsigned log_error:2; - NGX_COMPAT_BEGIN(2) + NGX_COMPAT_BEGIN(1) NGX_COMPAT_END }; |