add randomized timeout changing log

tikv · Jun 29, 2016 · 761b735 · 761b735
1 parent 1669dc7
commit 761b735
Showing 1 changed file with 9 additions and 2 deletions.
diff --git a/src/raft/raft.rs b/src/raft/raft.rs
@@ -1356,8 +1356,15 @@ impl<T: Storage> Raft<T> {
     }
 
     pub fn reset_randomized_election_timeout(&mut self) {
-        self.randomized_election_timeout = self.election_timeout +
-                                           rand::thread_rng().gen_range(0, self.election_timeout)
+        let prev_timeout = self.randomized_election_timeout;
+        let timeout = self.election_timeout +
+                      rand::thread_rng().gen_range(0, self.election_timeout);
+        debug!("{} {} reset election timeout {} -> {}",
+               self.tag,
+               self.id,
+               prev_timeout,
+               timeout);
+        self.randomized_election_timeout = timeout;
     }
 
     // check_quorum_active returns true if the quorum is active from