X-Git-Url: https://git.opendaylight.org/gerrit/gitweb?a=blobdiff_plain;f=opendaylight%2Fmd-sal%2Fsal-distributed-datastore%2Fsrc%2Fmain%2Fjava%2Forg%2Fopendaylight%2Fcontroller%2Fcluster%2Fdatastore%2FShard.java;h=abcde747b93b132f8c492f25ac8af43f96c84a26;hb=9cd4e7995210f8381892004373acc71c8b3ae7af;hp=3425608d235ddce1555dac19f6bc3e985b65f7f9;hpb=c1362c86eb19e92e6c64d10099a45deb499c6db1;p=controller.git
diff --git a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/Shard.java b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/Shard.java
index 3425608d23..abcde747b9 100644
--- a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/Shard.java
+++ b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/Shard.java
@@ -14,34 +14,55 @@ import akka.actor.Props;
import akka.event.Logging;
import akka.event.LoggingAdapter;
import akka.japi.Creator;
-import akka.persistence.Persistent;
-import akka.persistence.UntypedProcessor;
+import akka.serialization.Serialization;
+
+import com.google.common.base.Optional;
+import com.google.common.base.Preconditions;
+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 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.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.NonPersistent;
+import org.opendaylight.controller.cluster.datastore.messages.PeerAddressResolved;
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.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.md.sal.common.api.data.AsyncDataChangeListener;
import org.opendaylight.controller.md.sal.dom.store.impl.InMemoryDOMDataStore;
+import org.opendaylight.controller.md.sal.dom.store.impl.InMemoryDOMDataStoreFactory;
import org.opendaylight.controller.sal.core.spi.data.DOMStoreReadWriteTransaction;
import org.opendaylight.controller.sal.core.spi.data.DOMStoreThreePhaseCommitCohort;
import org.opendaylight.controller.sal.core.spi.data.DOMStoreTransactionChain;
-import org.opendaylight.yangtools.yang.data.api.InstanceIdentifier;
+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 scala.concurrent.duration.FiniteDuration;
+import java.util.ArrayList;
+import java.util.Date;
import java.util.HashMap;
+import java.util.List;
import java.util.Map;
import java.util.concurrent.ExecutionException;
-import java.util.concurrent.Executors;
+import java.util.concurrent.TimeUnit;
/**
* A Shard represents a portion of the logical data tree
@@ -49,135 +70,271 @@ import java.util.concurrent.Executors;
* Our Shard uses InMemoryDataStore as it's internal representation and delegates all requests it
*
*/
-public class Shard extends UntypedProcessor {
+public class Shard extends RaftActor {
- public static final String DEFAULT_NAME = "default";
+ private static final ConfigParams configParams = new ShardConfigParams();
- private final ListeningExecutorService storeExecutor =
- MoreExecutors.listeningDecorator(Executors.newFixedThreadPool(2));
+ public static final String DEFAULT_NAME = "default";
+ // The state of this Shard
private final InMemoryDOMDataStore store;
- private final Map
+ private final Map
modificationToCohort = new HashMap<>();
- private final LoggingAdapter log =
+ private final LoggingAdapter LOG =
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 Shard(String name) {
+ /// The name of this shard
+ private final ShardIdentifier name;
+
+ private final ShardStats shardMBean;
+
+ private final List dataChangeListeners = new ArrayList<>();
+
+ private final ShardContext shardContext;
+
+ private SchemaContext schemaContext;
+
+ private Shard(ShardIdentifier name, Map peerAddresses,
+ ShardContext shardContext) {
+ super(name.toString(), mapPeerAddresses(peerAddresses), Optional.of(configParams));
+
+ this.name = name;
+ this.shardContext = shardContext;
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,
+ shardContext.getDataStoreProperties());
+
+ shardMBean = ShardMBeanFactory.getShardStatsMBean(name.toString());
- store = new InMemoryDOMDataStore(name, storeExecutor);
}
- public static Props props(final String name) {
- return Props.create(new Creator() {
+ private static Map mapPeerAddresses(
+ Map peerAddresses) {
+ Map map = new HashMap<>();
- @Override
- public Shard create() throws Exception {
- return new Shard(name);
- }
+ for (Map.Entry entry : peerAddresses
+ .entrySet()) {
+ map.put(entry.getKey().toString(), entry.getValue());
+ }
- });
+ return map;
}
+ public static Props props(final ShardIdentifier name,
+ final Map peerAddresses,
+ ShardContext shardContext) {
+ Preconditions.checkNotNull(name, "name should not be null");
+ Preconditions.checkNotNull(peerAddresses, "peerAddresses should not be null");
+ Preconditions.checkNotNull(shardContext, "shardContext should not be null");
- @Override
- public void onReceive(Object message) throws Exception {
- log.debug("Received message {}", message);
+ return Props.create(new ShardCreator(name, peerAddresses, shardContext));
+ }
+
+ @Override public void onReceiveCommand(Object message) {
+ LOG.debug("Received message {} from {}", message.getClass().toString(),
+ getSender());
- if (message instanceof CreateTransactionChain) {
- createTransactionChain();
+ if (message.getClass()
+ .equals(CreateTransactionChain.SERIALIZABLE_CLASS)) {
+ if (isLeader()) {
+ createTransactionChain();
+ } else if (getLeader() != null) {
+ getLeader().forward(message, getContext());
+ }
} 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 instanceof Persistent) {
- commit((Modification) ((Persistent) message).payload());
- } else if (message instanceof CreateTransaction) {
- createTransaction((CreateTransaction) message);
- } else if(message instanceof NonPersistent){
- commit((Modification) ((NonPersistent) message).payload());
+ } else if (message.getClass()
+ .equals(CreateTransaction.SERIALIZABLE_CLASS)) {
+ if (isLeader()) {
+ createTransaction(CreateTransaction.fromSerializable(message));
+ } else if (getLeader() != null) {
+ getLeader().forward(message, getContext());
+ }
+ } else if (message instanceof PeerAddressResolved) {
+ PeerAddressResolved resolved = (PeerAddressResolved) message;
+ setPeerAddress(resolved.getPeerId().toString(),
+ resolved.getPeerAddress());
+ } else {
+ super.onReceiveCommand(message);
+ }
+ }
+
+ private ActorRef createTypedTransactionActor(
+ CreateTransaction createTransaction,
+ ShardTransactionIdentifier transactionId) {
+ if (createTransaction.getTransactionType()
+ == TransactionProxy.TransactionType.READ_ONLY.ordinal()) {
+
+ shardMBean.incrementReadOnlyTransactionCount();
+
+ return getContext().actorOf(
+ ShardTransaction.props(store.newReadOnlyTransaction(), getSelf(),
+ schemaContext, shardContext), transactionId.toString());
+
+ } else if (createTransaction.getTransactionType()
+ == TransactionProxy.TransactionType.READ_WRITE.ordinal()) {
+
+ shardMBean.incrementReadWriteTransactionCount();
+
+ return getContext().actorOf(
+ ShardTransaction.props(store.newReadWriteTransaction(), getSelf(),
+ schemaContext, shardContext), transactionId.toString());
+
+
+ } else if (createTransaction.getTransactionType()
+ == TransactionProxy.TransactionType.WRITE_ONLY.ordinal()) {
+
+ shardMBean.incrementWriteOnlyTransactionCount();
+
+ return getContext().actorOf(
+ ShardTransaction.props(store.newWriteOnlyTransaction(), getSelf(),
+ schemaContext, shardContext), transactionId.toString());
+ } else {
+ throw new IllegalArgumentException(
+ "Shard="+name + ":CreateTransaction message has unidentified transaction type="
+ + createTransaction.getTransactionType());
}
}
private void createTransaction(CreateTransaction createTransaction) {
- DOMStoreReadWriteTransaction transaction =
- store.newReadWriteTransaction();
- ActorRef transactionActor = getContext().actorOf(
- ShardTransaction.props(transaction, getSelf()), "shard-" + createTransaction.getTransactionId());
+
+ ShardTransactionIdentifier transactionId =
+ ShardTransactionIdentifier.builder()
+ .remoteTransactionId(createTransaction.getTransactionId())
+ .build();
+ LOG.debug("Creating transaction : {} ", transactionId);
+ ActorRef transactionActor =
+ createTypedTransactionActor(createTransaction, transactionId);
+
getSender()
- .tell(new CreateTransactionReply(transactionActor.path(), createTransaction.getTransactionId()),
+ .tell(new CreateTransactionReply(
+ Serialization.serializedActorPath(transactionActor),
+ createTransaction.getTransactionId()).toSerializable(),
getSelf());
}
- private void commit(Modification modification) {
+ private void commit(final ActorRef sender, Object serialized) {
+ Modification modification = MutableCompositeModification
+ .fromSerializable(serialized, schemaContext);
DOMStoreThreePhaseCommitCohort cohort =
- modificationToCohort.remove(modification);
+ modificationToCohort.remove(serialized);
if (cohort == null) {
- log.error(
- "Could not find cohort for modification : " + modification);
+ LOG.debug(
+ "Could not find cohort for modification : {}. Writing modification using a new transaction",
+ modification);
+ DOMStoreReadWriteTransaction transaction =
+ store.newReadWriteTransaction();
+ modification.apply(transaction);
+ DOMStoreThreePhaseCommitCohort commitCohort = transaction.ready();
+ ListenableFuture future =
+ commitCohort.preCommit();
+ try {
+ future.get();
+ future = commitCohort.commit();
+ future.get();
+ } 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;
}
+
final ListenableFuture future = cohort.commit();
- final ActorRef sender = getSender();
final ActorRef self = getSelf();
- future.addListener(new Runnable() {
+
+ Futures.addCallback(future, new FutureCallback() {
+ @Override
+ public void onSuccess(Void v) {
+ sender.tell(new CommitTransactionReply().toSerializable(),self);
+ shardMBean.incrementCommittedTransactionCount();
+ shardMBean.setLastCommittedTransactionTime(new Date());
+ }
+
@Override
- public void run() {
- try {
- future.get();
- sender.tell(new CommitTransactionReply(), self);
- } catch (InterruptedException | ExecutionException e) {
- // FIXME : Handle this properly
- log.error(e, "An exception happened when committing");
- }
+ public void onFailure(Throwable t) {
+ LOG.error(t, "An exception happened during commit");
+ shardMBean.incrementFailedTransactionsCount();
+ sender.tell(new akka.actor.Status.Failure(t), self);
}
- }, getContext().dispatcher());
+ });
+
}
private void handleForwardedCommit(ForwardedCommitTransaction message) {
+ Object serializedModification =
+ message.getModification().toSerializable();
+
modificationToCohort
- .put(message.getModification(), message.getCohort());
- if(persistent) {
- getSelf().forward(Persistent.create(message.getModification()),
- getContext());
+ .put(serializedModification, message.getCohort());
+
+ if (persistent) {
+ this.persistData(getSender(), "identifier",
+ new CompositeModificationPayload(serializedModification));
} else {
- getSelf().forward(NonPersistent.create(message.getModification()),
- getContext());
+ this.commit(getSender(), serializedModification);
}
}
private void updateSchemaContext(UpdateSchemaContext message) {
+ this.schemaContext = message.getSchemaContext();
store.onGlobalContextUpdated(message.getSchemaContext());
}
private void registerChangeListener(
RegisterChangeListener registerChangeListener) {
+ LOG.debug("registerDataChangeListener for {}", registerChangeListener
+ .getPath());
+
+
ActorSelection dataChangeListenerPath = getContext()
- .system().actorSelection(registerChangeListener.getDataChangeListenerPath());
+ .system().actorSelection(
+ registerChangeListener.getDataChangeListenerPath());
+
- AsyncDataChangeListener>
- listener = new DataChangeListenerProxy(dataChangeListenerPath);
+ // 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());
- org.opendaylight.yangtools.concepts.ListenerRegistration>>
- registration =
- store.registerChangeListener(registerChangeListener.getPath(),
+ // 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>
+ listener = new DataChangeListenerProxy(schemaContext, dataChangeListenerPath);
+
+ ListenerRegistration>>
+ registration = store.registerChangeListener(registerChangeListener.getPath(),
listener, registerChangeListener.getScope());
ActorRef listenerRegistration =
getContext().actorOf(
DataChangeListenerRegistration.props(registration));
+
+ LOG.debug(
+ "registerDataChangeListener sending reply, listenerRegistrationPath = {} "
+ , listenerRegistration.path().toString());
+
getSender()
.tell(new RegisterChangeListenerReply(listenerRegistration.path()),
getSelf());
@@ -185,10 +342,99 @@ public class Shard extends UntypedProcessor {
private void createTransactionChain() {
DOMStoreTransactionChain chain = store.createTransactionChain();
- ActorRef transactionChain =
- getContext().actorOf(ShardTransactionChain.props(chain));
- getSender()
- .tell(new CreateTransactionChainReply(transactionChain.path()),
+ ActorRef transactionChain = getContext().actorOf(
+ ShardTransactionChain.props(chain, schemaContext, shardContext));
+ getSender().tell(new CreateTransactionChainReply(transactionChain.path()).toSerializable(),
getSelf());
}
+
+ @Override protected void applyState(ActorRef clientActor, String identifier,
+ Object data) {
+
+ if (data instanceof CompositeModificationPayload) {
+ Object modification =
+ ((CompositeModificationPayload) data).getModification();
+
+ if (modification != null) {
+ commit(clientActor, modification);
+ } else {
+ LOG.error(
+ "modification is null - this is very unexpected, clientActor = {}, identifier = {}",
+ identifier, clientActor.path().toString());
+ }
+
+
+ } else {
+ LOG.error("Unknown state received {}", data);
+ }
+
+ // 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 applySnapshot(Object snapshot) {
+ throw new UnsupportedOperationException("applySnapshot");
+ }
+
+ @Override protected void onStateChanged() {
+ for (ActorSelection dataChangeListener : dataChangeListeners) {
+ dataChangeListener
+ .tell(new EnableNotification(isLeader()), getSelf());
+ }
+
+ if (getLeaderId() != null) {
+ shardMBean.setLeader(getLeaderId());
+ }
+
+ shardMBean.setRaftState(getRaftState().name());
+ shardMBean.setCurrentTerm(getCurrentTerm());
+ }
+
+ @Override public String persistenceId() {
+ return this.name.toString();
+ }
+
+
+ private static class ShardConfigParams extends DefaultConfigParamsImpl {
+ public static final FiniteDuration HEART_BEAT_INTERVAL =
+ new FiniteDuration(500, TimeUnit.MILLISECONDS);
+
+ @Override public FiniteDuration getHeartBeatInterval() {
+ return HEART_BEAT_INTERVAL;
+ }
+ }
+
+ private static class ShardCreator implements Creator {
+
+ private static final long serialVersionUID = 1L;
+
+ final ShardIdentifier name;
+ final Map peerAddresses;
+ final ShardContext shardContext;
+
+ ShardCreator(ShardIdentifier name, Map peerAddresses,
+ ShardContext shardContext) {
+ this.name = name;
+ this.peerAddresses = peerAddresses;
+ this.shardContext = shardContext;
+ }
+
+ @Override
+ public Shard create() throws Exception {
+ return new Shard(name, peerAddresses, shardContext);
+ }
+ }
}