Merge pull request #23 from andreev-io/ilya/mismatch-index-none

Addressing mismatch_index being None
andreev-io · Dec 1, 2021 · 0e84c50 · 0e84c50
2 parents 15ab077 + 01bc498
commit 0e84c50
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Showing 3 changed files with 7 additions and 6 deletions.
diff --git a/Cargo.lock b/Cargo.lock
diff --git a/little_raft/Cargo.toml b/little_raft/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 description = "The lightest distributed consensus library. Run your own replicated state machine!"
 name = "little_raft"
-version = "0.1.4"
+version = "0.1.5"
 authors = ["Ilya Andreev <[email protected]>"]
 edition = "2018"
 license = "MIT"

diff --git a/little_raft/src/replica.rs b/little_raft/src/replica.rs
@@ -413,10 +413,11 @@ where
                     // to the Raft paper's guidance on decreasing next_index by
                     // one at a time, but is more performant in cases when we
                     // can cut straight to the follower's last_index+1.
-                    let mismatch_index = mismatch_index.unwrap();
-                    if mismatch_index < self.next_index[&from_id] {
-                        let next_index = cmp::min(mismatch_index, last_index + 1);
-                        self.next_index.insert(from_id, next_index);
+                    if let Some(mismatch_index) = mismatch_index {
+                        if mismatch_index < self.next_index[&from_id] {
+                            let next_index = cmp::min(mismatch_index, last_index + 1);
+                            self.next_index.insert(from_id, next_index);
+                        }
                     }
                 }
             }