Add more debug output in AbstractLeader and Follower

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

diff --git a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/behaviors/Follower.java b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/behaviors/Follower.java
index 57b1d92c726bb558ea95b1ac652f89043827bb46..82c6bafedd19b7a4337f802539ade9211b0280a0 100644 (file)
--- a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/behaviors/Follower.java
+++ b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/behaviors/Follower.java
@@ -9,6 +9,7 @@
 package org.opendaylight.controller.cluster.raft.behaviors;
 
 import akka.actor.ActorRef;
+import akka.japi.Procedure;
 import com.google.common.annotations.VisibleForTesting;
 import java.util.ArrayList;
 import org.opendaylight.controller.cluster.raft.RaftActorContext;
@@ -37,12 +38,18 @@ import org.opendaylight.controller.cluster.raft.messages.RequestVoteReply;
  * </ul>
  */
 public class Follower extends AbstractRaftActorBehavior {
-
-    private SnapshotTracker snapshotTracker = null;
+    private static final int SYNC_THRESHOLD = 10;
 
     private final SyncStatusTracker initialSyncStatusTracker;
 
-    private static final int SYNC_THRESHOLD = 10;
+    private final Procedure<ReplicatedLogEntry> appendAndPersistCallback = new Procedure<ReplicatedLogEntry>() {
+        @Override
+        public void apply(ReplicatedLogEntry logEntry) {
+            context.getReplicatedLog().captureSnapshotIfReady(logEntry);
+        }
+    };
+
+    private SnapshotTracker snapshotTracker = null;
 
     public Follower(RaftActorContext context) {
         this(context, null);
@@ -194,7 +201,7 @@ public class Follower extends AbstractRaftActorBehavior {
 
                 LOG.debug("{}: Append entry to log {}", logName(), entry.getData());
 
-                context.getReplicatedLog().appendAndPersist(entry);
+                context.getReplicatedLog().appendAndPersist(entry, appendAndPersistCallback);
 
                 if(entry.getData() instanceof ServerConfigurationPayload) {
                     context.updatePeerIds((ServerConfigurationPayload)entry.getData());
@@ -270,8 +277,8 @@ public class Follower extends AbstractRaftActorBehavior {
             // The follower's log is out of sync because the Leader's
             // prevLogIndex entry was not found in it's log
 
-            LOG.debug("{}: The log is not empty but the prevLogIndex {} was not found in it",
-                        logName(), appendEntries.getPrevLogIndex());
+            LOG.debug("{}: The log is not empty but the prevLogIndex {} was not found in it - lastIndex: {}, snapshotIndex: {}",
+                        logName(), appendEntries.getPrevLogIndex(), lastIndex, context.getReplicatedLog().getSnapshotIndex());
         } else if (lastIndex > -1 && prevEntryPresent && prevLogTerm != appendEntries.getPrevLogTerm()) {
 
             // The follower's log is out of sync because the Leader's
@@ -379,7 +386,7 @@ public class Follower extends AbstractRaftActorBehavior {
                         installSnapshot.getLastIncludedTerm(),
                         context.getTermInformation().getCurrentTerm(),
                         context.getTermInformation().getVotedFor(),
-                        context.getPeerServerInfo());
+                        context.getPeerServerInfo(true));
 
                 ApplySnapshot.Callback applySnapshotCallback = new ApplySnapshot.Callback() {
                     @Override