[MEDIUM] measure and report session rate on frontend, backends and servers
With this change, all frontends, backends, and servers maintain a session
counter and a timer to compute a session rate over the last second. This
value will be very useful because it varies instantly and can be used to
check thresholds. This value is also reported in the stats in a new "rate"
column.
diff --git a/include/types/server.h b/include/types/server.h
index 5c0186a..8fb8a1f 100644
--- a/include/types/server.h
+++ b/include/types/server.h
@@ -2,7 +2,7 @@
include/types/server.h
This file defines everything related to servers.
- Copyright (C) 2000-2008 Willy Tarreau - w@1wt.eu
+ Copyright (C) 2000-2009 Willy Tarreau - w@1wt.eu
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
@@ -30,6 +30,7 @@
#include <common/mini-clist.h>
#include <types/buffers.h>
+#include <types/freq_ctr.h>
#include <types/proxy.h>
#include <types/queue.h>
#include <types/task.h>
@@ -122,6 +123,7 @@
unsigned failed_conns, failed_resp; /* failed connect() and responses */
unsigned retries, redispatches; /* retried and redispatched connections */
unsigned failed_secu; /* blocked responses because of security concerns */
+ struct freq_ctr sess_per_sec; /* sessions per second on this server */
unsigned cum_sess; /* cumulated number of sessions really sent to this server */
unsigned cum_lbconn; /* cumulated number of sessions directed by load balancing */