fix

raft/consensus_module.nim

@@ -172,3 +172,7 @@ proc raftNodeReplicateSmCommand*[SmCommandType, SmStateType](node: RaftNode[SmCo
         )
 
       node.replicateFuts.add(node.msgSendCallback(msg))
+
+    node.commitIndex.inc
+    raftNodeApplyLogEntry(node, raftNodeLogEntryGet(node, node.commitIndex)) # Apply to state machine
+    

tests/basic_cluster.nim

@@ -18,6 +18,7 @@ type
 
   BasicRaftCluster* = ref object
     nodes*: Table[RaftNodeId, BasicRaftNode]
+    nodesLock*: RLock
 
 proc basicRaftClusterRaftMessageSendCallbackCreate[SmCommandType, SmStateType](cluster: BasicRaftCluster): RaftMessageSendCallback[SmCommandType, SmStateType] =
   proc (msg: RaftMessageBase[SmCommandType, SmStateType]): Future[RaftMessageResponseBase[SmCommandType, SmStateType]] {.async, gcsafe.} =
@@ -29,6 +30,7 @@ proc basicRaftClusterStart*(cluster: BasicRaftCluster) =
 
 proc basicRaftClusterGetLeaderId*(cluster: BasicRaftCluster): UUID =
   result = DefaultUUID
+  withRLock(cluster.nodesLock):
     for id, node in cluster.nodes:
       if raftNodeIsLeader(node):
         return raftNodeIdGet(node)

tests/test_basic_cluster_election.nim

@@ -20,7 +20,7 @@ proc basicClusterElectionMain*() =
     test "Basic Raft Cluster Init (5 nodes)":
       for i in 0..4:
         nodesIds[i] = genUUID()
-      cluster = basicRaftClusterInit(nodesIds, 5, 5, 20, 1)
+      cluster = basicRaftClusterInit(nodesIds, 150, 150, 20, 20)
       check cluster != nil
 
     test "Start Basic Raft Cluster and wait it to converge for a 2 seconds interval (Elect a Leader)":