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%2FRaftActorContextImpl.java;h=7c1216940dce623e59967c0c5446f72b398f7e8d;hb=59918fc863252de0e51e5167f0cb57f697b76c13;hp=bbeaddb240c2ab9bb220178c04c9627c3826bd94;hpb=9491b06df9419e58db3089a4c5cd9f5407cb9aac;p=controller.git

diff --git a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/RaftActorContextImpl.java b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/RaftActorContextImpl.java
index bbeaddb240..7c1216940d 100644
--- a/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/RaftActorContextImpl.java
+++ b/opendaylight/md-sal/sal-akka-raft/src/main/java/org/opendaylight/controller/cluster/raft/RaftActorContextImpl.java
@@ -13,17 +13,24 @@ import akka.actor.ActorRef;
 import akka.actor.ActorSelection;
 import akka.actor.ActorSystem;
 import akka.actor.Props;
-
 import com.google.common.annotations.VisibleForTesting;
-import com.google.common.base.Supplier;
+import com.google.common.base.Preconditions;
+import java.util.ArrayList;
 import java.util.Collection;
 import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
 import java.util.Map;
+import java.util.Set;
+import java.util.function.LongSupplier;
 import org.opendaylight.controller.cluster.DataPersistenceProvider;
+import org.opendaylight.controller.cluster.raft.ServerConfigurationPayload.ServerInfo;
+import org.opendaylight.controller.cluster.raft.behaviors.RaftActorBehavior;
 import org.opendaylight.controller.cluster.raft.policy.RaftPolicy;
 import org.slf4j.Logger;
 
 public class RaftActorContextImpl implements RaftActorContext {
+    private static final LongSupplier JVM_MEMORY_RETRIEVER = () -> Runtime.getRuntime().maxMemory();
 
     private final ActorRef actor;
 
@@ -45,8 +52,10 @@ public class RaftActorContextImpl implements RaftActorContext {
 
     private ConfigParams configParams;
 
+    private boolean dynamicServerConfiguration = false;
+
     @VisibleForTesting
-    private Supplier<Long> totalMemoryRetriever;
+    private LongSupplier totalMemoryRetriever = JVM_MEMORY_RETRIEVER;
 
     // Snapshot manager will need to be created on demand as it needs raft actor context which cannot
     // be passed to it in the constructor
@@ -56,6 +65,12 @@ public class RaftActorContextImpl implements RaftActorContext {
 
     private short payloadVersion;
 
+    private boolean votingMember = true;
+
+    private RaftActorBehavior currentBehavior;
+
+    private int numVotingPeers = -1;
+
     public RaftActorContextImpl(ActorRef actor, ActorContext context, String id,
             ElectionTerm termInformation, long commitIndex, long lastApplied, Map<String, String> peerAddresses,
             ConfigParams configParams, DataPersistenceProvider persistenceProvider, Logger logger) {
@@ -74,7 +89,8 @@ public class RaftActorContextImpl implements RaftActorContext {
         }
     }
 
-    void setPayloadVersion(short payloadVersion) {
+    @VisibleForTesting
+    public void setPayloadVersion(short payloadVersion) {
         this.payloadVersion = payloadVersion;
     }
 
@@ -83,7 +99,7 @@ public class RaftActorContextImpl implements RaftActorContext {
         return payloadVersion;
     }
 
-    void setConfigParams(ConfigParams configParams) {
+    public void setConfigParams(ConfigParams configParams) {
         this.configParams = configParams;
     }
 
@@ -174,11 +190,48 @@ public class RaftActorContextImpl implements RaftActorContext {
                 peerAddress = configParams.getPeerAddressResolver().resolve(peerId);
                 peerInfo.setAddress(peerAddress);
             }
+        } else {
+            peerAddress = configParams.getPeerAddressResolver().resolve(peerId);
         }
 
         return peerAddress;
     }
 
+    @Override
+    public void updatePeerIds(ServerConfigurationPayload serverConfig){
+        votingMember = true;
+        boolean foundSelf = false;
+        Set<String> currentPeers = new HashSet<>(this.getPeerIds());
+        for(ServerInfo server: serverConfig.getServerConfig()) {
+            if(getId().equals(server.getId())) {
+                foundSelf = true;
+                if(!server.isVoting()) {
+                    votingMember = false;
+                }
+            } else {
+                VotingState votingState = server.isVoting() ? VotingState.VOTING: VotingState.NON_VOTING;
+                if(!currentPeers.contains(server.getId())) {
+                    this.addToPeers(server.getId(), null, votingState);
+                } else {
+                    this.getPeerInfo(server.getId()).setVotingState(votingState);
+                    currentPeers.remove(server.getId());
+                }
+            }
+        }
+
+        for(String peerIdToRemove: currentPeers) {
+            this.removePeer(peerIdToRemove);
+        }
+
+        if(!foundSelf) {
+            votingMember = false;
+        }
+
+        LOG.debug("{}: Updated server config: isVoting: {}, peers: {}", id, votingMember, peerInfoMap.values());
+
+        setDynamicServerConfigurationInUse();
+    }
+
     @Override public ConfigParams getConfigParams() {
         return configParams;
     }
@@ -186,10 +239,17 @@ public class RaftActorContextImpl implements RaftActorContext {
     @Override
     public void addToPeers(String id, String address, VotingState votingState) {
         peerInfoMap.put(id, new PeerInfo(id, address, votingState));
+        numVotingPeers = -1;
     }
 
-    @Override public void removePeer(String name) {
-        peerInfoMap.remove(name);
+    @Override
+    public void removePeer(String name) {
+        if(getId().equals(name)) {
+            votingMember = false;
+        } else {
+            peerInfoMap.remove(name);
+            numVotingPeers = -1;
+        }
     }
 
     @Override public ActorSelection getPeerActorSelection(String peerId) {
@@ -219,12 +279,12 @@ public class RaftActorContextImpl implements RaftActorContext {
 
     @Override
     public long getTotalMemory() {
-        return totalMemoryRetriever != null ? totalMemoryRetriever.get() : Runtime.getRuntime().totalMemory();
+        return totalMemoryRetriever.getAsLong();
     }
 
     @Override
-    public void setTotalMemoryRetriever(Supplier<Long> retriever) {
-        totalMemoryRetriever = retriever;
+    public void setTotalMemoryRetriever(LongSupplier retriever) {
+        totalMemoryRetriever = retriever == null ? JVM_MEMORY_RETRIEVER : retriever;
     }
 
     @Override
@@ -242,4 +302,70 @@ public class RaftActorContextImpl implements RaftActorContext {
     public RaftPolicy getRaftPolicy() {
         return configParams.getRaftPolicy();
     }
+
+    @Override
+    public boolean isDynamicServerConfigurationInUse() {
+        return dynamicServerConfiguration;
+    }
+
+    @Override
+    public void setDynamicServerConfigurationInUse() {
+        this.dynamicServerConfiguration = true;
+    }
+
+    @Override
+    public ServerConfigurationPayload getPeerServerInfo(boolean includeSelf) {
+        if (!isDynamicServerConfigurationInUse()) {
+            return null;
+        }
+        Collection<PeerInfo> peers = getPeers();
+        List<ServerInfo> newConfig = new ArrayList<>(peers.size() + 1);
+        for(PeerInfo peer: peers) {
+            newConfig.add(new ServerInfo(peer.getId(), peer.isVoting()));
+        }
+
+        if(includeSelf) {
+            newConfig.add(new ServerInfo(getId(), votingMember));
+        }
+
+        return (new ServerConfigurationPayload(newConfig));
+    }
+
+    @Override
+    public boolean isVotingMember() {
+        return votingMember;
+    }
+
+    @Override
+    public boolean anyVotingPeers() {
+        if(numVotingPeers < 0) {
+            numVotingPeers = 0;
+            for(PeerInfo info: getPeers()) {
+                if(info.isVoting()) {
+                    numVotingPeers++;
+                }
+            }
+        }
+
+        return numVotingPeers > 0;
+    }
+
+    @Override
+    public RaftActorBehavior getCurrentBehavior() {
+        return currentBehavior;
+    }
+
+    void setCurrentBehavior(final RaftActorBehavior behavior) {
+        this.currentBehavior = Preconditions.checkNotNull(behavior);
+    }
+
+    void close() {
+        if (currentBehavior != null) {
+            try {
+                currentBehavior.close();
+            } catch (Exception e) {
+                LOG.debug("{}: Error closing behavior {}", getId(), currentBehavior.state());
+            }
+        }
+    }
 }