# HG changeset patch
# User Timo Sirainen <timo.sirainen@dovecot.fi>
# Date 1509016730 -10800
# Node ID 0281041d5067c8dcdc9d5287d7338ff56f2eb92f
# Parent  8623737c012993212ca9ec0d719bd1e5d96cd6bd
director: Track show long the last ring sync took.

diff -r 8623737c0129 -r 0281041d5067 src/director/director-connection.c
--- a/src/director/director-connection.c	Thu Oct 26 14:07:56 2017 +0300
+++ b/src/director/director-connection.c	Thu Oct 26 14:18:50 2017 +0300
@@ -1468,6 +1468,10 @@
 			dir_debug("Ring is synced (%s sent seq=%u, hosts_hash=%u)",
 				  conn->name, seq,
 				  mail_hosts_hash(dir->mail_hosts));
+			int sync_msecs =
+				timeval_diff_msecs(&ioloop_timeval, &dir->last_sync_start_time);
+			if (sync_msecs >= 0)
+				dir->last_sync_msecs = sync_msecs;
 			director_set_ring_synced(dir);
 		}
 	} else {
diff -r 8623737c0129 -r 0281041d5067 src/director/director.c
--- a/src/director/director.c	Thu Oct 26 14:07:56 2017 +0300
+++ b/src/director/director.c	Thu Oct 26 14:18:50 2017 +0300
@@ -370,8 +370,10 @@
 {
 	string_t *str;
 
-	if (host == dir->self_host)
+	if (host == dir->self_host) {
 		dir->last_sync_sent_ring_change_counter = dir->ring_change_counter;
+		dir->last_sync_start_time = ioloop_timeval;
+	}
 
 	str = t_str_new(128);
 	str_printfa(str, "SYNC\t%s\t%u\t%u",
diff -r 8623737c0129 -r 0281041d5067 src/director/director.h
--- a/src/director/director.h	Thu Oct 26 14:07:56 2017 +0300
+++ b/src/director/director.h	Thu Oct 26 14:18:50 2017 +0300
@@ -137,9 +137,15 @@
 	unsigned int sync_seq;
 	unsigned int ring_change_counter;
 	unsigned int last_sync_sent_ring_change_counter;
+	/* Timestamp when the last SYNC was initiated by us */
+	struct timeval last_sync_start_time;
 	/* the lowest minor version supported by the ring */
 	unsigned int ring_min_version;
+	/* Timestamp when ring became synced or unsynced the last time */
 	time_t ring_last_sync_time;
+	/* How many milliseconds it took for the last SYNC to travel through
+	   the ring. */
+	unsigned int last_sync_msecs;
 
 	time_t ring_first_alone;