Add a stats counter for backend connections which we came too late

to recycle



git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@4177 d4fa192b-c00b-0410-8231-f00ffab90ce4

bin/varnishd/cache_backend.c

@@ -256,11 +256,11 @@ VBE_GetVbe(struct sess *sp, struct backend *bp)
 		if (VBE_CheckFd(vc->fd)) {
 			/* XXX locking of stats */
 			VSL_stats->backend_reuse += 1;
-			VSL_stats->backend_conn++;
 			WSP(sp, SLT_Backend, "%d %s %s",
 			    vc->fd, sp->director->vcl_name, bp->vcl_name);
 			return (vc);
 		}
+		VSL_stats->backend_toolate++;
 		sp->vbe = vc;
 		VBE_ClosedFd(sp);
 	}

include/stat_field.h

@@ -37,14 +37,14 @@ MAC_STAT(cache_hit,		uint64_t, 0, 'a', "Cache hits")
 MAC_STAT(cache_hitpass,		uint64_t, 0, 'a', "Cache hits for pass")
 MAC_STAT(cache_miss,		uint64_t, 0, 'a', "Cache misses")
 
-MAC_STAT(backend_conn,		uint64_t, 0, 'a', "Backend connections success")
-MAC_STAT(backend_unhealthy,	uint64_t, 0, 'a',
-    "Backend connections not attempted")
-MAC_STAT(backend_busy,		uint64_t, 0, 'a', "Backend connections too many")
-MAC_STAT(backend_fail,		uint64_t, 0, 'a', "Backend connections failures")
-MAC_STAT(backend_reuse,		uint64_t, 0, 'a', "Backend connections reuses")
-MAC_STAT(backend_recycle,	uint64_t, 0, 'a', "Backend connections recycles")
-MAC_STAT(backend_unused,	uint64_t, 0, 'a', "Backend connections unused")
+MAC_STAT(backend_conn,		uint64_t, 0, 'a', "Backend conn. success")
+MAC_STAT(backend_unhealthy,	uint64_t, 0, 'a', "Backend conn. not attempted")
+MAC_STAT(backend_busy,		uint64_t, 0, 'a', "Backend conn. too many")
+MAC_STAT(backend_fail,		uint64_t, 0, 'a', "Backend conn. failures")
+MAC_STAT(backend_reuse,		uint64_t, 0, 'a', "Backend conn. reuses")
+MAC_STAT(backend_toolate,	uint64_t, 0, 'a', "Backend conn. was closed")
+MAC_STAT(backend_recycle,	uint64_t, 0, 'a', "Backend conn. recycles")
+MAC_STAT(backend_unused,	uint64_t, 0, 'a', "Backend conn. unused")
 
 MAC_STAT(n_sess_mem,		uint64_t, 0, 'i', "N struct sess_mem")
 MAC_STAT(n_sess,		uint64_t, 0, 'i', "N struct sess")