X-Git-Url: https://git.opendaylight.org/gerrit/gitweb?a=blobdiff_plain;f=opendaylight%2Fmd-sal%2Fsal-akka-raft%2Fsrc%2Fmain%2Fjava%2Forg%2Fopendaylight%2Fcontroller%2Fcluster%2Fraft%2Fbehaviors%2FAbstractLeader.java;h=a63c62fa30740b5830676ab6f15f3de9c1988e7b;hb=b03c5a20673792f0fb8df847fbaf9c359c7cce1b;hp=a4753a4fe432654554a64578af0b09233069146b;hpb=d8d8f731bbe6c58fcbd0e616734e2e230aaf4ab4;p=controller.git

diff --git a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/behaviors/AbstractLeader.java b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/behaviors/AbstractLeader.java
index a4753a4fe4..a63c62fa30 100644
--- a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/behaviors/AbstractLeader.java
+++ b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/behaviors/AbstractLeader.java
@@ -134,7 +134,7 @@ public abstract class AbstractLeader extends AbstractRaftActorBehavior {
      *
      * @return Collection of follower IDs
      */
-    protected final Collection<String> getFollowerIds() {
+    public final Collection<String> getFollowerIds() {
         return followerToLog.keySet();
     }
 
@@ -460,6 +460,8 @@ public abstract class AbstractLeader extends AbstractRaftActorBehavior {
         if (followerActor != null) {
             long followerNextIndex = followerLogInformation.getNextIndex();
             boolean isFollowerActive = followerLogInformation.isFollowerActive();
+            boolean sendAppendEntries = false;
+            List<ReplicatedLogEntry> entries = Collections.EMPTY_LIST;
 
             if (mapFollowerToSnapshot.get(followerId) != null) {
                 // if install snapshot is in process , then sent next chunk if possible
@@ -467,8 +469,7 @@ public abstract class AbstractLeader extends AbstractRaftActorBehavior {
                     sendSnapshotChunk(followerActor, followerId);
                 } else if(sendHeartbeat) {
                     // we send a heartbeat even if we have not received a reply for the last chunk
-                    sendAppendEntriesToFollower(followerActor, followerLogInformation.getNextIndex(),
-                        Collections.<ReplicatedLogEntry>emptyList(), followerId);
+                    sendAppendEntries = true;
                 }
             } else {
                 long leaderLastIndex = context.getReplicatedLog().lastIndex();
@@ -485,10 +486,10 @@ public abstract class AbstractLeader extends AbstractRaftActorBehavior {
                             followerNextIndex, followerId);
 
                     // FIXME : Sending one entry at a time
-                    final List<ReplicatedLogEntry> entries = context.getReplicatedLog().getFrom(followerNextIndex, 1);
-
-                    sendAppendEntriesToFollower(followerActor, followerNextIndex, entries, followerId);
-
+                    if(followerLogInformation.okToReplicate()) {
+                        entries = context.getReplicatedLog().getFrom(followerNextIndex, 1);
+                        sendAppendEntries = true;
+                    }
                 } else if (isFollowerActive && followerNextIndex >= 0 &&
                     leaderLastIndex > followerNextIndex && !context.isSnapshotCaptureInitiated()) {
                     // if the followers next index is not present in the leaders log, and
@@ -503,19 +504,21 @@ public abstract class AbstractLeader extends AbstractRaftActorBehavior {
                     }
 
                     // Send heartbeat to follower whenever install snapshot is initiated.
-                    sendAppendEntriesToFollower(followerActor, followerLogInformation.getNextIndex(),
-                            Collections.<ReplicatedLogEntry>emptyList(), followerId);
-
+                    sendAppendEntries = true;
                     initiateCaptureSnapshot(followerId, followerNextIndex);
 
                 } else if(sendHeartbeat) {
-                    //we send an AppendEntries, even if the follower is inactive
+                    // we send an AppendEntries, even if the follower is inactive
                     // in-order to update the followers timestamp, in case it becomes active again
-                    sendAppendEntriesToFollower(followerActor, followerLogInformation.getNextIndex(),
-                        Collections.<ReplicatedLogEntry>emptyList(), followerId);
+                    sendAppendEntries = true;
                 }
 
             }
+
+            if(sendAppendEntries) {
+                sendAppendEntriesToFollower(followerActor, followerNextIndex,
+                        entries, followerId);
+            }
         }
     }