Don't transfer leadership to a non-voting follower

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

diff --git a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/behaviors/AbstractRaftActorBehavior.java b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/behaviors/AbstractRaftActorBehavior.java
index 39c097f4ee36a250bd7e69a30e9042bc41d91fe5..d17fba03d4ba58e77168602ffe388431b0a64a1a 100644 (file)
--- a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/behaviors/AbstractRaftActorBehavior.java
+++ b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/behaviors/AbstractRaftActorBehavior.java
@@ -10,18 +10,13 @@ package org.opendaylight.controller.cluster.raft.behaviors;
 
 import akka.actor.ActorRef;
 import akka.actor.Cancellable;
-import java.util.HashSet;
 import java.util.Random;
-import java.util.Set;
 import java.util.concurrent.TimeUnit;
 import org.opendaylight.controller.cluster.raft.ClientRequestTracker;
 import org.opendaylight.controller.cluster.raft.RaftActorContext;
 import org.opendaylight.controller.cluster.raft.RaftState;
 import org.opendaylight.controller.cluster.raft.ReplicatedLogEntry;
 import org.opendaylight.controller.cluster.raft.SerializationUtils;
-import org.opendaylight.controller.cluster.raft.ServerConfigurationPayload;
-import org.opendaylight.controller.cluster.raft.ServerConfigurationPayload.ServerInfo;
-import org.opendaylight.controller.cluster.raft.VotingState;
 import org.opendaylight.controller.cluster.raft.base.messages.ApplyJournalEntries;
 import org.opendaylight.controller.cluster.raft.base.messages.ApplyState;
 import org.opendaylight.controller.cluster.raft.base.messages.ElectionTimeout;
@@ -257,6 +252,10 @@ public abstract class AbstractRaftActorBehavior implements RaftActorBehavior {
         }
     }
 
+    protected boolean canStartElection() {
+        return context.getRaftPolicy().automaticElectionsEnabled() && context.isVotingMember();
+    }
+
     /**
      * schedule a new election
      *
@@ -265,12 +264,11 @@ public abstract class AbstractRaftActorBehavior implements RaftActorBehavior {
     protected void scheduleElection(FiniteDuration interval) {
         stopElection();
 
-        // Schedule an election. When the scheduler triggers an ElectionTimeout
-        // message is sent to itself
-        electionCancel =
-            context.getActorSystem().scheduler().scheduleOnce(interval,
-                context.getActor(), ELECTION_TIMEOUT,
-                context.getActorSystem().dispatcher(), context.getActor());
+        if(canStartElection()) {
+            // Schedule an election. When the scheduler triggers an ElectionTimeout message is sent to itself
+            electionCancel = context.getActorSystem().scheduler().scheduleOnce(interval, context.getActor(),
+                    ELECTION_TIMEOUT,context.getActorSystem().dispatcher(), context.getActor());
+        }
     }
 
     /**
@@ -494,23 +492,4 @@ public abstract class AbstractRaftActorBehavior implements RaftActorBehavior {
     protected String getId(){
         return context.getId();
     }
-
-    public void applyServerConfiguration(ServerConfigurationPayload serverConfig) {
-        Set<String> currentPeers = new HashSet<>(context.getPeerIds());
-        for(ServerInfo server: serverConfig.getServerConfig()) {
-            if(!getId().equals(server.getId())) {
-                VotingState votingState = server.isVoting() ? VotingState.VOTING: VotingState.NON_VOTING;
-                if(!currentPeers.contains(server.getId())) {
-                    context.addToPeers(server.getId(), null, votingState);
-                } else {
-                    context.getPeerInfo(server.getId()).setVotingState(votingState);
-                    currentPeers.remove(server.getId());
-                }
-            }
-        }
-
-        for(String peerIdToRemove: currentPeers) {
-            context.removePeer(peerIdToRemove);
-        }
-    }
 }