package org.opendaylight.controller.cluster.raft;
-import static com.google.common.base.Preconditions.checkState;
+import akka.actor.ActorContext;
import akka.actor.ActorRef;
import akka.actor.ActorSelection;
import akka.actor.ActorSystem;
import akka.actor.Props;
-import akka.actor.UntypedActorContext;
+import akka.cluster.Cluster;
+import com.google.common.annotations.VisibleForTesting;
+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.Optional;
+import java.util.Set;
+import java.util.function.Consumer;
+import java.util.function.LongSupplier;
+import javax.annotation.Nonnull;
+import org.opendaylight.controller.cluster.DataPersistenceProvider;
+import org.opendaylight.controller.cluster.io.FileBackedOutputStream;
+import org.opendaylight.controller.cluster.raft.base.messages.ApplyState;
+import org.opendaylight.controller.cluster.raft.behaviors.RaftActorBehavior;
+import org.opendaylight.controller.cluster.raft.persisted.ServerConfigurationPayload;
+import org.opendaylight.controller.cluster.raft.persisted.ServerInfo;
+import org.opendaylight.controller.cluster.raft.policy.RaftPolicy;
import org.slf4j.Logger;
+/**
+ * Implementation of the RaftActorContext interface.
+ *
+ * @author Moiz Raja
+ * @author Thomas Pantelis
+ */
public class RaftActorContextImpl implements RaftActorContext {
+ private static final LongSupplier JVM_MEMORY_RETRIEVER = () -> Runtime.getRuntime().maxMemory();
private final ActorRef actor;
- private final UntypedActorContext context;
+ private final ActorContext context;
private final String id;
private ReplicatedLog replicatedLog;
- private final Map<String, String> peerAddresses;
+ private final Map<String, PeerInfo> peerInfoMap = new HashMap<>();
- private final Logger LOG;
+ private final Logger log;
private ConfigParams configParams;
- private boolean snapshotCaptureInitiated;
+ private boolean dynamicServerConfiguration = false;
+
+ @VisibleForTesting
+ 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
private SnapshotManager snapshotManager;
- public RaftActorContextImpl(ActorRef actor, UntypedActorContext context,
- String id,
- ElectionTerm termInformation, long commitIndex,
- long lastApplied, ReplicatedLog replicatedLog,
- Map<String, String> peerAddresses, ConfigParams configParams,
- Logger logger) {
+ private final DataPersistenceProvider persistenceProvider;
+
+ private short payloadVersion;
+
+ private boolean votingMember = true;
+
+ private RaftActorBehavior currentBehavior;
+
+ private int numVotingPeers = -1;
+
+ private Optional<Cluster> cluster;
+
+ private final Consumer<ApplyState> applyStateConsumer;
+
+ public RaftActorContextImpl(ActorRef actor, ActorContext context, String id,
+ @Nonnull ElectionTerm termInformation, long commitIndex, long lastApplied,
+ @Nonnull Map<String, String> peerAddresses,
+ @Nonnull ConfigParams configParams, @Nonnull DataPersistenceProvider persistenceProvider,
+ @Nonnull Consumer<ApplyState> applyStateConsumer, @Nonnull Logger logger) {
this.actor = actor;
this.context = context;
this.id = id;
- this.termInformation = termInformation;
+ this.termInformation = Preconditions.checkNotNull(termInformation);
this.commitIndex = commitIndex;
this.lastApplied = lastApplied;
- this.replicatedLog = replicatedLog;
- this.peerAddresses = peerAddresses;
- this.configParams = configParams;
- this.LOG = logger;
+ this.configParams = Preconditions.checkNotNull(configParams);
+ this.persistenceProvider = Preconditions.checkNotNull(persistenceProvider);
+ this.log = Preconditions.checkNotNull(logger);
+ this.applyStateConsumer = Preconditions.checkNotNull(applyStateConsumer);
+
+ for (Map.Entry<String, String> e: Preconditions.checkNotNull(peerAddresses).entrySet()) {
+ peerInfoMap.put(e.getKey(), new PeerInfo(e.getKey(), e.getValue(), VotingState.VOTING));
+ }
}
- void setConfigParams(ConfigParams configParams) {
+ @VisibleForTesting
+ public void setPayloadVersion(short payloadVersion) {
+ this.payloadVersion = payloadVersion;
+ }
+
+ @Override
+ public short getPayloadVersion() {
+ return payloadVersion;
+ }
+
+ public void setConfigParams(ConfigParams configParams) {
this.configParams = configParams;
}
@Override
- public ActorRef actorOf(Props props){
+ public ActorRef actorOf(Props props) {
return context.actorOf(props);
}
@Override
- public ActorSelection actorSelection(String path){
+ public ActorSelection actorSelection(String path) {
return context.actorSelection(path);
}
return actor;
}
+ @Override
+ @SuppressWarnings("checkstyle:IllegalCatch")
+ public Optional<Cluster> getCluster() {
+ if (cluster == null) {
+ try {
+ cluster = Optional.of(Cluster.get(getActorSystem()));
+ } catch (Exception e) {
+ // An exception means there's no cluster configured. This will only happen in unit tests.
+ log.debug("{}: Could not obtain Cluster: {}", getId(), e);
+ cluster = Optional.empty();
+ }
+ }
+
+ return cluster;
+ }
+
@Override
public ElectionTerm getTermInformation() {
return termInformation;
return lastApplied;
}
- @Override public void setLastApplied(long lastApplied) {
+ @Override
+ public void setLastApplied(long lastApplied) {
this.lastApplied = lastApplied;
}
- @Override public void setReplicatedLog(ReplicatedLog replicatedLog) {
+ @Override
+ public void setReplicatedLog(ReplicatedLog replicatedLog) {
this.replicatedLog = replicatedLog;
}
- @Override public ReplicatedLog getReplicatedLog() {
+ @Override
+ public ReplicatedLog getReplicatedLog() {
return replicatedLog;
}
}
@Override public Logger getLogger() {
- return this.LOG;
+ return this.log;
}
- @Override public Map<String, String> getPeerAddresses() {
- return peerAddresses;
+ @Override
+ public Collection<String> getPeerIds() {
+ return peerInfoMap.keySet();
+ }
+
+ @Override
+ public Collection<PeerInfo> getPeers() {
+ return peerInfoMap.values();
+ }
+
+ @Override
+ public PeerInfo getPeerInfo(String peerId) {
+ return peerInfoMap.get(peerId);
}
- @Override public String getPeerAddress(String peerId) {
- return peerAddresses.get(peerId);
+ @Override
+ public String getPeerAddress(String peerId) {
+ String peerAddress;
+ PeerInfo peerInfo = peerInfoMap.get(peerId);
+ if (peerInfo != null) {
+ peerAddress = peerInfo.getAddress();
+ if (peerAddress == null) {
+ 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;
}
- @Override public void addToPeers(String name, String address) {
- peerAddresses.put(name, address);
+ @Override
+ public void addToPeers(String peerId, String address, VotingState votingState) {
+ peerInfoMap.put(peerId, new PeerInfo(peerId, address, votingState));
+ numVotingPeers = -1;
}
- @Override public void removePeer(String name) {
- peerAddresses.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) {
String peerAddress = getPeerAddress(peerId);
- if(peerAddress != null){
+ if (peerAddress != null) {
return actorSelection(peerAddress);
}
return null;
}
- @Override public void setPeerAddress(String peerId, String peerAddress) {
- LOG.info("Peer address for peer {} set to {}", peerId, peerAddress);
- checkState(peerAddresses.containsKey(peerId), peerId + " is unknown");
-
- peerAddresses.put(peerId, peerAddress);
+ @Override
+ public void setPeerAddress(String peerId, String peerAddress) {
+ PeerInfo peerInfo = peerInfoMap.get(peerId);
+ if (peerInfo != null) {
+ log.info("Peer address for peer {} set to {}", peerId, peerAddress);
+ peerInfo.setAddress(peerAddress);
+ }
}
+ @Override
public SnapshotManager getSnapshotManager() {
- if(snapshotManager == null){
- snapshotManager = new SnapshotManager(this, LOG);
+ if (snapshotManager == null) {
+ snapshotManager = new SnapshotManager(this, log);
}
return snapshotManager;
}
+
+ @Override
+ public long getTotalMemory() {
+ return totalMemoryRetriever.getAsLong();
+ }
+
+ @Override
+ public void setTotalMemoryRetriever(LongSupplier retriever) {
+ totalMemoryRetriever = retriever == null ? JVM_MEMORY_RETRIEVER : retriever;
+ }
+
+ @Override
+ public boolean hasFollowers() {
+ return !getPeerIds().isEmpty();
+ }
+
+ @Override
+ public DataPersistenceProvider getPersistenceProvider() {
+ return persistenceProvider;
+ }
+
+
+ @Override
+ 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);
+ }
+
+ @Override
+ public Consumer<ApplyState> getApplyStateConsumer() {
+ return applyStateConsumer;
+ }
+
+ @Override
+ public FileBackedOutputStream newFileBackedOutputStream() {
+ return new FileBackedOutputStream(configParams.getFileBackedStreamingThreshold(),
+ configParams.getTempFileDirectory());
+ }
+
+ @SuppressWarnings("checkstyle:IllegalCatch")
+ void close() {
+ if (currentBehavior != null) {
+ try {
+ currentBehavior.close();
+ } catch (Exception e) {
+ log.debug("{}: Error closing behavior {}", getId(), currentBehavior.state(), e);
+ }
+ }
+ }
}
Code Review / controller.git / blobdiff