Sentinel: clarify effect of resetting failover_start_time.

1 files changed, 4 insertions, 2 deletions

diff --git a/src/sentinel.c b/src/sentinel.c
index 03b072cc8..bbe8aa5de 100644
--- a/src/sentinel.c
+++ b/src/sentinel.c
@@ -1156,7 +1156,9 @@ void sentinelDelFlagsToDictOfRedisInstances(dict *instances, int flags) {
  * 1) Remove all slaves.
  * 2) Remove all sentinels.
  * 3) Remove most of the flags resulting from runtime operations.
- * 4) Reset timers to their default value.
+ * 4) Reset timers to their default value. For example after a reset it will be
+ *    possible to failover again the same master ASAP, without waiting the
+ *    failover timeout delay.
  * 5) In the process of doing this undo the failover if in progress.
  * 6) Disconnect the connections with the master (will reconnect automatically).
  */
@@ -1179,7 +1181,7 @@ void sentinelResetMaster(sentinelRedisInstance *ri, int flags) {
     }
     ri->failover_state = SENTINEL_FAILOVER_STATE_NONE;
     ri->failover_state_change_time = 0;
-    ri->failover_start_time = 0;
+    ri->failover_start_time = 0; /* We can failover again ASAP. */
     ri->promoted_slave = NULL;
     sdsfree(ri->runid);
     sdsfree(ri->slave_master_host);