MINOR: stats: Enhancement to stats page to provide information of last session time.
Summary:
Track and report last session time on the stats page for each server
in every backend, as well as the backend.
This attempts to address the requirement in the ROADMAP
- add a last activity date for each server (req/resp) that will be
displayed in the stats. It will be useful with soft stop.
The stats page reports this as time elapsed since last session. This
change does not adequately address the requirement for long running
session (websocket, RDP... etc).
diff --git a/include/proto/backend.h b/include/proto/backend.h
index 74caaaa..68ba3d6 100644
--- a/include/proto/backend.h
+++ b/include/proto/backend.h
@@ -23,6 +23,7 @@
#define _PROTO_BACKEND_H
#include <common/config.h>
+#include <common/time.h>
#include <types/backend.h>
#include <types/proxy.h>
@@ -43,6 +44,13 @@
void update_backend_weight(struct proxy *px);
struct server *get_server_sh(struct proxy *px, const char *addr, int len);
struct server *get_server_uh(struct proxy *px, char *uri, int uri_len);
+int be_lastsession(const struct proxy *be);
+
+/* set the time of last session on the backend */
+static void inline be_set_sess_last(struct proxy *be)
+{
+ be->be_counters.last_sess = now.tv_sec;
+}
/* This function returns non-zero if a server with the given weight and state
* is usable for LB, otherwise zero.