Bug 3020: Add leader version to LeaderStateChanged

[controller.git] / opendaylight / md-sal / sal-akka-raft / src / main / java / org / opendaylight / controller / cluster / raft / RaftActorRecoverySupport.java

diff --git a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/RaftActorRecoverySupport.java b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/RaftActorRecoverySupport.java
index 38db03e534fc5423d1b1e72cbaf76f2b399250b1..8cf01f11eb7e95b8944e117d4112600f2c00fd9f 100644 (file)
--- a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/RaftActorRecoverySupport.java
+++ b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/RaftActorRecoverySupport.java
@@ -127,6 +127,8 @@ class RaftActorRecoverySupport {
         long lastUnappliedIndex = context.getLastApplied() + 1;
 
         if(log.isDebugEnabled()) {
+            // it can happen that lastUnappliedIndex > toIndex, if the AJE is in the persistent journal
+            // but the entry itself has made it to that state and recovered via the snapshot
             log.debug("{}: Received apply journal entries for recovery, applying to state: {} to {}",
                     context.getId(), lastUnappliedIndex, toIndex);
         }