import akka.actor.ActorRef;
import akka.actor.ActorSelection;
+import akka.actor.PoisonPill;
import akka.actor.Props;
import akka.event.Logging;
import akka.event.LoggingAdapter;
import akka.japi.Creator;
+import akka.persistence.RecoveryFailure;
import akka.serialization.Serialization;
+import com.google.common.annotations.VisibleForTesting;
import com.google.common.base.Optional;
+import com.google.common.base.Preconditions;
+import com.google.common.util.concurrent.CheckedFuture;
+import com.google.common.util.concurrent.FutureCallback;
+import com.google.common.util.concurrent.Futures;
import com.google.common.util.concurrent.ListenableFuture;
-import com.google.common.util.concurrent.ListeningExecutorService;
-import com.google.common.util.concurrent.MoreExecutors;
+import com.google.protobuf.ByteString;
+import com.google.protobuf.InvalidProtocolBufferException;
+import org.opendaylight.controller.cluster.common.actor.CommonConfig;
+import org.opendaylight.controller.cluster.common.actor.MeteringBehavior;
+import org.opendaylight.controller.cluster.datastore.identifiers.ShardIdentifier;
+import org.opendaylight.controller.cluster.datastore.identifiers.ShardTransactionIdentifier;
import org.opendaylight.controller.cluster.datastore.jmx.mbeans.shard.ShardMBeanFactory;
import org.opendaylight.controller.cluster.datastore.jmx.mbeans.shard.ShardStats;
+import org.opendaylight.controller.cluster.datastore.messages.CloseTransactionChain;
import org.opendaylight.controller.cluster.datastore.messages.CommitTransactionReply;
import org.opendaylight.controller.cluster.datastore.messages.CreateTransaction;
-import org.opendaylight.controller.cluster.datastore.messages.CreateTransactionChain;
import org.opendaylight.controller.cluster.datastore.messages.CreateTransactionChainReply;
import org.opendaylight.controller.cluster.datastore.messages.CreateTransactionReply;
import org.opendaylight.controller.cluster.datastore.messages.EnableNotification;
import org.opendaylight.controller.cluster.datastore.messages.ForwardedCommitTransaction;
import org.opendaylight.controller.cluster.datastore.messages.PeerAddressResolved;
+import org.opendaylight.controller.cluster.datastore.messages.ReadData;
+import org.opendaylight.controller.cluster.datastore.messages.ReadDataReply;
import org.opendaylight.controller.cluster.datastore.messages.RegisterChangeListener;
import org.opendaylight.controller.cluster.datastore.messages.RegisterChangeListenerReply;
import org.opendaylight.controller.cluster.datastore.messages.UpdateSchemaContext;
import org.opendaylight.controller.cluster.datastore.modification.Modification;
import org.opendaylight.controller.cluster.datastore.modification.MutableCompositeModification;
+import org.opendaylight.controller.cluster.datastore.node.NormalizedNodeToNodeCodec;
import org.opendaylight.controller.cluster.raft.ConfigParams;
import org.opendaylight.controller.cluster.raft.DefaultConfigParamsImpl;
import org.opendaylight.controller.cluster.raft.RaftActor;
+import org.opendaylight.controller.cluster.raft.ReplicatedLogEntry;
+import org.opendaylight.controller.cluster.raft.base.messages.CaptureSnapshotReply;
+import org.opendaylight.controller.cluster.raft.protobuff.client.messages.CompositeModificationPayload;
import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeListener;
+import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
import org.opendaylight.controller.md.sal.dom.store.impl.InMemoryDOMDataStore;
-import org.opendaylight.controller.sal.core.spi.data.DOMStoreReadWriteTransaction;
+import org.opendaylight.controller.md.sal.dom.store.impl.InMemoryDOMDataStoreFactory;
+import org.opendaylight.controller.protobuff.messages.common.NormalizedNodeMessages;
+import org.opendaylight.controller.sal.core.spi.data.DOMStoreReadTransaction;
import org.opendaylight.controller.sal.core.spi.data.DOMStoreThreePhaseCommitCohort;
import org.opendaylight.controller.sal.core.spi.data.DOMStoreTransactionChain;
+import org.opendaylight.controller.sal.core.spi.data.DOMStoreTransactionFactory;
+import org.opendaylight.controller.sal.core.spi.data.DOMStoreWriteTransaction;
+import org.opendaylight.yangtools.concepts.ListenerRegistration;
import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
import org.opendaylight.yangtools.yang.model.api.SchemaContext;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ExecutionException;
-import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;
/**
public static final String DEFAULT_NAME = "default";
- private final ListeningExecutorService storeExecutor =
- MoreExecutors.listeningDecorator(Executors.newFixedThreadPool(2));
-
+ // The state of this Shard
private final InMemoryDOMDataStore store;
private final Map<Object, DOMStoreThreePhaseCommitCohort>
Logging.getLogger(getContext().system(), this);
// By default persistent will be true and can be turned off using the system
- // property persistent
+ // property shard.persistent
private final boolean persistent;
- private final String name;
-
- private volatile SchemaContext schemaContext;
+ /// The name of this shard
+ private final ShardIdentifier name;
private final ShardStats shardMBean;
private final List<ActorSelection> dataChangeListeners = new ArrayList<>();
- private Shard(String name, Map<String, String> peerAddresses) {
- super(name, peerAddresses, Optional.of(configParams));
+ private final DatastoreContext datastoreContext;
+
+ private SchemaContext schemaContext;
+
+ private ActorRef createSnapshotTransaction;
+
+ private final Map<String, DOMStoreTransactionChain> transactionChains = new HashMap<>();
+
+ private Shard(ShardIdentifier name, Map<ShardIdentifier, String> peerAddresses,
+ DatastoreContext datastoreContext, SchemaContext schemaContext) {
+ super(name.toString(), mapPeerAddresses(peerAddresses), Optional.of(configParams));
this.name = name;
+ this.datastoreContext = datastoreContext;
+ this.schemaContext = schemaContext;
String setting = System.getProperty("shard.persistent");
this.persistent = !"false".equals(setting);
- LOG.info("Creating shard : {} persistent : {}", name, persistent);
+ LOG.info("Shard created : {} persistent : {}", name, persistent);
+
+ store = InMemoryDOMDataStoreFactory.create(name.toString(), null,
+ datastoreContext.getDataStoreProperties());
- store = new InMemoryDOMDataStore(name, storeExecutor);
+ if(schemaContext != null) {
+ store.onGlobalContextUpdated(schemaContext);
+ }
- shardMBean = ShardMBeanFactory.getShardStatsMBean(name);
+ shardMBean = ShardMBeanFactory.getShardStatsMBean(name.toString(),
+ datastoreContext.getDataStoreMXBeanType());
+ shardMBean.setDataStoreExecutor(store.getDomStoreExecutor());
+ shardMBean.setNotificationManager(store.getDataChangeListenerNotificationManager());
+ if (isMetricsCaptureEnabled()) {
+ getContext().become(new MeteringBehavior(this));
+ }
}
- public static Props props(final String name, final Map<String, String> peerAddresses) {
- return Props.create(new Creator<Shard>() {
+ private static Map<String, String> mapPeerAddresses(
+ Map<ShardIdentifier, String> peerAddresses) {
+ Map<String, String> map = new HashMap<>();
- @Override
- public Shard create() throws Exception {
- return new Shard(name, peerAddresses);
- }
+ for (Map.Entry<ShardIdentifier, String> entry : peerAddresses
+ .entrySet()) {
+ map.put(entry.getKey().toString(), entry.getValue());
+ }
- });
+ return map;
}
+ public static Props props(final ShardIdentifier name,
+ final Map<ShardIdentifier, String> peerAddresses,
+ DatastoreContext datastoreContext, SchemaContext schemaContext) {
+ Preconditions.checkNotNull(name, "name should not be null");
+ Preconditions.checkNotNull(peerAddresses, "peerAddresses should not be null");
+ Preconditions.checkNotNull(datastoreContext, "dataStoreContext should not be null");
+ Preconditions.checkNotNull(schemaContext, "schemaContext should not be null");
- @Override public void onReceiveCommand(Object message){
- LOG.debug("Received message {} from {}", message.getClass().toString(), getSender());
+ return Props.create(new ShardCreator(name, peerAddresses, datastoreContext, schemaContext));
+ }
- if (message.getClass().equals(CreateTransactionChain.SERIALIZABLE_CLASS)) {
- if(isLeader()) {
- createTransactionChain();
- } else if(getLeader() != null){
- getLeader().forward(message, getContext());
- }
+ @Override public void onReceiveRecover(Object message) {
+ LOG.debug("onReceiveRecover: Received message {} from {}", message.getClass().toString(),
+ getSender());
+
+ if (message instanceof RecoveryFailure){
+ LOG.error(((RecoveryFailure) message).cause(), "Recovery failed because of this cause");
+ } else {
+ super.onReceiveRecover(message);
+ }
+ }
+
+ @Override public void onReceiveCommand(Object message) {
+ LOG.debug("onReceiveCommand: Received message {} from {}", message.getClass().toString(),
+ getSender());
+
+ if(message.getClass().equals(ReadDataReply.SERIALIZABLE_CLASS)) {
+ // This must be for install snapshot. Don't want to open this up and trigger
+ // deSerialization
+ self()
+ .tell(new CaptureSnapshotReply(ReadDataReply.getNormalizedNodeByteString(message)),
+ self());
+
+ createSnapshotTransaction = null;
+ // Send a PoisonPill instead of sending close transaction because we do not really need
+ // a response
+ getSender().tell(PoisonPill.getInstance(), self());
+
+ } else if (message.getClass().equals(CloseTransactionChain.SERIALIZABLE_CLASS)){
+ closeTransactionChain(CloseTransactionChain.fromSerializable(message));
} else if (message instanceof RegisterChangeListener) {
registerChangeListener((RegisterChangeListener) message);
} else if (message instanceof UpdateSchemaContext) {
updateSchemaContext((UpdateSchemaContext) message);
} else if (message instanceof ForwardedCommitTransaction) {
handleForwardedCommit((ForwardedCommitTransaction) message);
- } else if (message.getClass().equals(CreateTransaction.SERIALIZABLE_CLASS)) {
- if(isLeader()) {
+ } else if (message.getClass()
+ .equals(CreateTransaction.SERIALIZABLE_CLASS)) {
+ if (isLeader()) {
createTransaction(CreateTransaction.fromSerializable(message));
- } else if(getLeader() != null){
+ } else if (getLeader() != null) {
getLeader().forward(message, getContext());
+ } else {
+ getSender().tell(new akka.actor.Status.Failure(new IllegalStateException(
+ "Could not find leader so transaction cannot be created")), getSelf());
}
- } else if (message instanceof PeerAddressResolved){
+ } else if (message instanceof PeerAddressResolved) {
PeerAddressResolved resolved = (PeerAddressResolved) message;
- setPeerAddress(resolved.getPeerId(), resolved.getPeerAddress());
+ setPeerAddress(resolved.getPeerId().toString(),
+ resolved.getPeerAddress());
} else {
- super.onReceiveCommand(message);
+ super.onReceiveCommand(message);
}
}
- private ActorRef createTypedTransactionActor(CreateTransaction createTransaction,String transactionId){
- if(createTransaction.getTransactionType()== TransactionProxy.TransactionType.READ_ONLY.ordinal()){
- return getContext().actorOf(
- ShardTransaction.props( store.newReadOnlyTransaction(), getSelf(), schemaContext), transactionId);
+ private void closeTransactionChain(CloseTransactionChain closeTransactionChain) {
+ DOMStoreTransactionChain chain =
+ transactionChains.remove(closeTransactionChain.getTransactionChainId());
- }else if (createTransaction.getTransactionType()== TransactionProxy.TransactionType.READ_WRITE.ordinal()){
- return getContext().actorOf(
- ShardTransaction.props( store.newReadWriteTransaction(), getSelf(), schemaContext), transactionId);
+ if(chain != null) {
+ chain.close();
+ }
+ }
+ private ActorRef createTypedTransactionActor(
+ int transactionType,
+ ShardTransactionIdentifier transactionId,
+ String transactionChainId ) {
- }else if (createTransaction.getTransactionType()== TransactionProxy.TransactionType.WRITE_ONLY.ordinal()){
- return getContext().actorOf(
- ShardTransaction.props( store.newWriteOnlyTransaction(), getSelf(), schemaContext), transactionId);
- }else{
- throw new IllegalArgumentException ("CreateTransaction message has unidentified transaction type="+createTransaction.getTransactionType()) ;
- }
- }
+ DOMStoreTransactionFactory factory = store;
+
+ if(!transactionChainId.isEmpty()) {
+ factory = transactionChains.get(transactionChainId);
+ if(factory == null){
+ DOMStoreTransactionChain transactionChain = store.createTransactionChain();
+ transactionChains.put(transactionChainId, transactionChain);
+ factory = transactionChain;
+ }
+ }
+
+ if(this.schemaContext == null){
+ throw new NullPointerException("schemaContext should not be null");
+ }
+
+ if (transactionType
+ == TransactionProxy.TransactionType.READ_ONLY.ordinal()) {
+
+ shardMBean.incrementReadOnlyTransactionCount();
+
+ return getContext().actorOf(
+ ShardTransaction.props(factory.newReadOnlyTransaction(), getSelf(),
+ schemaContext,datastoreContext, shardMBean), transactionId.toString());
+
+ } else if (transactionType
+ == TransactionProxy.TransactionType.READ_WRITE.ordinal()) {
+
+ shardMBean.incrementReadWriteTransactionCount();
+
+ return getContext().actorOf(
+ ShardTransaction.props(factory.newReadWriteTransaction(), getSelf(),
+ schemaContext, datastoreContext, shardMBean), transactionId.toString());
+
+
+ } else if (transactionType
+ == TransactionProxy.TransactionType.WRITE_ONLY.ordinal()) {
+
+ shardMBean.incrementWriteOnlyTransactionCount();
+
+ return getContext().actorOf(
+ ShardTransaction.props(factory.newWriteOnlyTransaction(), getSelf(),
+ schemaContext, datastoreContext, shardMBean), transactionId.toString());
+ } else {
+ throw new IllegalArgumentException(
+ "Shard="+name + ":CreateTransaction message has unidentified transaction type="
+ + transactionType);
+ }
+ }
private void createTransaction(CreateTransaction createTransaction) {
+ createTransaction(createTransaction.getTransactionType(),
+ createTransaction.getTransactionId(), createTransaction.getTransactionChainId());
+ }
+
+ private ActorRef createTransaction(int transactionType, String remoteTransactionId, String transactionChainId) {
- String transactionId = "shard-" + createTransaction.getTransactionId();
- LOG.info("Creating transaction : {} " , transactionId);
- ActorRef transactionActor = createTypedTransactionActor(createTransaction,transactionId);
+ ShardTransactionIdentifier transactionId =
+ ShardTransactionIdentifier.builder()
+ .remoteTransactionId(remoteTransactionId)
+ .build();
+ LOG.debug("Creating transaction : {} ", transactionId);
+ ActorRef transactionActor =
+ createTypedTransactionActor(transactionType, transactionId, transactionChainId);
getSender()
- .tell(new CreateTransactionReply(Serialization.serializedActorPath(transactionActor), createTransaction.getTransactionId()).toSerializable(),
+ .tell(new CreateTransactionReply(
+ Serialization.serializedActorPath(transactionActor),
+ remoteTransactionId).toSerializable(),
getSelf());
+
+ return transactionActor;
+ }
+
+ private void syncCommitTransaction(DOMStoreWriteTransaction transaction)
+ throws ExecutionException, InterruptedException {
+ DOMStoreThreePhaseCommitCohort commitCohort = transaction.ready();
+ commitCohort.preCommit().get();
+ commitCohort.commit().get();
}
+
private void commit(final ActorRef sender, Object serialized) {
- Modification modification = MutableCompositeModification.fromSerializable(serialized, schemaContext);
+ Modification modification = MutableCompositeModification
+ .fromSerializable(serialized, schemaContext);
DOMStoreThreePhaseCommitCohort cohort =
modificationToCohort.remove(serialized);
if (cohort == null) {
- LOG.error(
- "Could not find cohort for modification : {}", modification);
- LOG.info("Writing modification using a new transaction");
- DOMStoreReadWriteTransaction transaction =
- store.newReadWriteTransaction();
+ LOG.debug(
+ "Could not find cohort for modification : {}. Writing modification using a new transaction",
+ modification);
+ DOMStoreWriteTransaction transaction =
+ store.newWriteOnlyTransaction();
+
+ LOG.debug("Created new transaction {}", transaction.getIdentifier().toString());
+
modification.apply(transaction);
- DOMStoreThreePhaseCommitCohort commitCohort = transaction.ready();
- ListenableFuture<Void> future =
- commitCohort.preCommit();
try {
- future.get();
- future = commitCohort.commit();
- future.get();
- } catch (InterruptedException e) {
- LOG.error("Failed to commit", e);
- } catch (ExecutionException e) {
+ syncCommitTransaction(transaction);
+ } catch (InterruptedException | ExecutionException e) {
+ shardMBean.incrementFailedTransactionsCount();
LOG.error("Failed to commit", e);
+ return;
}
+ //we want to just apply the recovery commit and return
+ shardMBean.incrementCommittedTransactionCount();
+ return;
+ }
+
+
+ if(sender == null){
+ LOG.error("Commit failed. Sender cannot be null");
+ return;
}
final ListenableFuture<Void> future = cohort.commit();
- shardMBean.incrementCommittedTransactionCount();
final ActorRef self = getSelf();
- future.addListener(new Runnable() {
+
+ Futures.addCallback(future, new FutureCallback<Void>() {
@Override
- public void run() {
- try {
- future.get();
-
- if(sender != null) {
- sender
- .tell(new CommitTransactionReply().toSerializable(),
- self);
- } else {
- LOG.error("sender is null ???");
- }
- } catch (InterruptedException | ExecutionException e) {
- // FIXME : Handle this properly
- LOG.error(e, "An exception happened when committing");
- }
+ public void onSuccess(Void v) {
+ sender.tell(new CommitTransactionReply().toSerializable(), self);
+ shardMBean.incrementCommittedTransactionCount();
+ shardMBean.setLastCommittedTransactionTime(System.currentTimeMillis());
}
- }, getContext().dispatcher());
+
+ @Override
+ public void onFailure(Throwable t) {
+ LOG.error(t, "An exception happened during commit");
+ shardMBean.incrementFailedTransactionsCount();
+ sender.tell(new akka.actor.Status.Failure(t), self);
+ }
+ });
+
}
private void handleForwardedCommit(ForwardedCommitTransaction message) {
- Object serializedModification = message.getModification().toSerializable();
+ Object serializedModification =
+ message.getModification().toSerializable();
modificationToCohort
- .put(serializedModification , message.getCohort());
+ .put(serializedModification, message.getCohort());
- if(persistent) {
- this.persistData(getSender(), "identifier", new CompositeModificationPayload(serializedModification));
+ if (persistent) {
+ this.persistData(getSender(), "identifier",
+ new CompositeModificationPayload(serializedModification));
} else {
this.commit(getSender(), serializedModification);
}
private void updateSchemaContext(UpdateSchemaContext message) {
this.schemaContext = message.getSchemaContext();
+ updateSchemaContext(message.getSchemaContext());
store.onGlobalContextUpdated(message.getSchemaContext());
}
+ @VisibleForTesting void updateSchemaContext(SchemaContext schemaContext) {
+ store.onGlobalContextUpdated(schemaContext);
+ }
+
private void registerChangeListener(
RegisterChangeListener registerChangeListener) {
- LOG.debug("registerDataChangeListener for " + registerChangeListener.getPath());
+ LOG.debug("registerDataChangeListener for {}", registerChangeListener
+ .getPath());
ActorSelection dataChangeListenerPath = getContext()
// Notify the listener if notifications should be enabled or not
// If this shard is the leader then it will enable notifications else
// it will not
- dataChangeListenerPath.tell(new EnableNotification(isLeader()), getSelf());
+ dataChangeListenerPath
+ .tell(new EnableNotification(isLeader()), getSelf());
// Now store a reference to the data change listener so it can be notified
// at a later point if notifications should be enabled or disabled
dataChangeListeners.add(dataChangeListenerPath);
AsyncDataChangeListener<YangInstanceIdentifier, NormalizedNode<?, ?>>
- listener = new DataChangeListenerProxy(schemaContext,dataChangeListenerPath);
+ listener = new DataChangeListenerProxy(schemaContext, dataChangeListenerPath);
- org.opendaylight.yangtools.concepts.ListenerRegistration<AsyncDataChangeListener<YangInstanceIdentifier, NormalizedNode<?, ?>>>
- registration =
- store.registerChangeListener(registerChangeListener.getPath(),
+ ListenerRegistration<AsyncDataChangeListener<YangInstanceIdentifier, NormalizedNode<?, ?>>>
+ registration = store.registerChangeListener(registerChangeListener.getPath(),
listener, registerChangeListener.getScope());
ActorRef listenerRegistration =
getContext().actorOf(
DataChangeListenerRegistration.props(registration));
- LOG.debug("registerDataChangeListener sending reply, listenerRegistrationPath = " + listenerRegistration.path().toString());
+ LOG.debug(
+ "registerDataChangeListener sending reply, listenerRegistrationPath = {} "
+ , listenerRegistration.path().toString());
getSender()
.tell(new RegisterChangeListenerReply(listenerRegistration.path()),
private void createTransactionChain() {
DOMStoreTransactionChain chain = store.createTransactionChain();
- ActorRef transactionChain =
- getContext().actorOf(
- ShardTransactionChain.props(chain, schemaContext));
- getSender()
- .tell(new CreateTransactionChainReply(transactionChain.path())
- .toSerializable(),
+ ActorRef transactionChain = getContext().actorOf(
+ ShardTransactionChain.props(chain, schemaContext, datastoreContext, shardMBean));
+ getSender().tell(new CreateTransactionChainReply(transactionChain.path()).toSerializable(),
getSelf());
}
+ private boolean isMetricsCaptureEnabled(){
+ CommonConfig config = new CommonConfig(getContext().system().settings().config());
+ return config.isMetricCaptureEnabled();
+ }
+
@Override protected void applyState(ActorRef clientActor, String identifier,
Object data) {
- if(data instanceof CompositeModificationPayload){
+ if (data instanceof CompositeModificationPayload) {
Object modification =
((CompositeModificationPayload) data).getModification();
- if(modification != null){
+ if (modification != null) {
commit(clientActor, modification);
} else {
- LOG.error("modification is null - this is very unexpected");
+ LOG.error(
+ "modification is null - this is very unexpected, clientActor = {}, identifier = {}",
+ identifier, clientActor.path().toString());
}
-
} else {
- LOG.error("Unknown state received {}", data);
+ LOG.error("Unknown state received {} Class loader = {} CompositeNodeMod.ClassLoader = {}", data, data.getClass().getClassLoader(), CompositeModificationPayload.class.getClassLoader());
+ }
+
+ // Update stats
+ ReplicatedLogEntry lastLogEntry = getLastLogEntry();
+
+ if (lastLogEntry != null) {
+ shardMBean.setLastLogIndex(lastLogEntry.getIndex());
+ shardMBean.setLastLogTerm(lastLogEntry.getTerm());
}
+ shardMBean.setCommitIndex(getCommitIndex());
+ shardMBean.setLastApplied(getLastApplied());
+
}
- @Override protected Object createSnapshot() {
- throw new UnsupportedOperationException("createSnapshot");
+ @Override protected void createSnapshot() {
+ if (createSnapshotTransaction == null) {
+
+ // Create a transaction. We are really going to treat the transaction as a worker
+ // so that this actor does not get block building the snapshot
+ createSnapshotTransaction = createTransaction(
+ TransactionProxy.TransactionType.READ_ONLY.ordinal(),
+ "createSnapshot", "");
+
+ createSnapshotTransaction.tell(
+ new ReadData(YangInstanceIdentifier.builder().build()).toSerializable(), self());
+
+ }
}
- @Override protected void applySnapshot(Object snapshot) {
- throw new UnsupportedOperationException("applySnapshot");
+ @VisibleForTesting @Override protected void applySnapshot(ByteString snapshot) {
+ // Since this will be done only on Recovery or when this actor is a Follower
+ // we can safely commit everything in here. We not need to worry about event notifications
+ // as they would have already been disabled on the follower
+
+ LOG.info("Applying snapshot");
+ try {
+ DOMStoreWriteTransaction transaction = store.newWriteOnlyTransaction();
+ NormalizedNodeMessages.Node serializedNode = NormalizedNodeMessages.Node.parseFrom(snapshot);
+ NormalizedNode<?, ?> node = new NormalizedNodeToNodeCodec(schemaContext)
+ .decode(YangInstanceIdentifier.builder().build(), serializedNode);
+
+ // delete everything first
+ transaction.delete(YangInstanceIdentifier.builder().build());
+
+ // Add everything from the remote node back
+ transaction.write(YangInstanceIdentifier.builder().build(), node);
+ syncCommitTransaction(transaction);
+ } catch (InvalidProtocolBufferException | InterruptedException | ExecutionException e) {
+ LOG.error(e, "An exception occurred when applying snapshot");
+ } finally {
+ LOG.info("Done applying snapshot");
+ }
}
@Override protected void onStateChanged() {
- for(ActorSelection dataChangeListener : dataChangeListeners){
- dataChangeListener.tell(new EnableNotification(isLeader()), getSelf());
+ for (ActorSelection dataChangeListener : dataChangeListeners) {
+ dataChangeListener
+ .tell(new EnableNotification(isLeader()), getSelf());
}
- if(getLeaderId() != null){
- shardMBean.setLeader(getLeaderId());
- }
shardMBean.setRaftState(getRaftState().name());
+ shardMBean.setCurrentTerm(getCurrentTerm());
+
+ // If this actor is no longer the leader close all the transaction chains
+ if(!isLeader()){
+ for(Map.Entry<String, DOMStoreTransactionChain> entry : transactionChains.entrySet()){
+ LOG.debug("onStateChanged: Closing transaction chain {} because shard {} is no longer the leader", entry.getKey(), getId());
+ entry.getValue().close();
+ }
+
+ transactionChains.clear();
+ }
+ }
+
+ @Override protected void onLeaderChanged(String oldLeader, String newLeader) {
+ shardMBean.setLeader(newLeader);
}
@Override public String persistenceId() {
- return this.name;
+ return this.name.toString();
}
return HEART_BEAT_INTERVAL;
}
}
+
+ private static class ShardCreator implements Creator<Shard> {
+
+ private static final long serialVersionUID = 1L;
+
+ final ShardIdentifier name;
+ final Map<ShardIdentifier, String> peerAddresses;
+ final DatastoreContext datastoreContext;
+ final SchemaContext schemaContext;
+
+ ShardCreator(ShardIdentifier name, Map<ShardIdentifier, String> peerAddresses,
+ DatastoreContext datastoreContext, SchemaContext schemaContext) {
+ this.name = name;
+ this.peerAddresses = peerAddresses;
+ this.datastoreContext = datastoreContext;
+ this.schemaContext = schemaContext;
+ }
+
+ @Override
+ public Shard create() throws Exception {
+ return new Shard(name, peerAddresses, datastoreContext, schemaContext);
+ }
+ }
+
+ @VisibleForTesting NormalizedNode readStore() throws ExecutionException, InterruptedException {
+ DOMStoreReadTransaction transaction = store.newReadOnlyTransaction();
+
+ CheckedFuture<Optional<NormalizedNode<?, ?>>, ReadFailedException> future =
+ transaction.read(YangInstanceIdentifier.builder().build());
+
+ NormalizedNode<?, ?> node = future.get().get();
+
+ transaction.close();
+
+ return node;
+ }
+
+ @VisibleForTesting void writeToStore(YangInstanceIdentifier id, NormalizedNode node)
+ throws ExecutionException, InterruptedException {
+ DOMStoreWriteTransaction transaction = store.newWriteOnlyTransaction();
+
+ transaction.write(id, node);
+
+ syncCommitTransaction(transaction);
+ }
+
}
Code Review / controller.git / blobdiff