X-Git-Url: https://git.opendaylight.org/gerrit/gitweb?p=controller.git;a=blobdiff_plain;f=opendaylight%2Fmd-sal%2Fsal-distributed-datastore%2Fsrc%2Fmain%2Fjava%2Forg%2Fopendaylight%2Fcontroller%2Fcluster%2Fdatastore%2FShard.java;h=63b26331a510835ae623a9feade7893938d81f84;hp=09ad00598fedb0730cb520740d4f4588a058446e;hb=886fe1a50077d9dc9c4c36f938fc7c86317cb149;hpb=18a4539ad844c05fcd30373efa43f873aca4c142 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 09ad00598f..63b26331a5 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 @@ -14,33 +14,49 @@ 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.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.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.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
@@ -48,120 +64,273 @@ 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); - private Shard(String name) { - log.info("Creating shard : {}", name ); + // By default persistent will be true and can be turned off using the system + // property shard.persistent + private final boolean persistent; + + /// The name of this shard + private final ShardIdentifier name; + + private volatile SchemaContext schemaContext; + + private final ShardStats shardMBean; + + private final List dataChangeListeners = new ArrayList<>(); + + private Shard(ShardIdentifier name, Map peerAddresses) { + super(name.toString(), mapPeerAddresses(peerAddresses), Optional.of(configParams)); + + this.name = name; + + String setting = System.getProperty("shard.persistent"); + + this.persistent = !"false".equals(setting); + + LOG.info("Shard created : {} persistent : {}", name, persistent); - store = new InMemoryDOMDataStore(name, storeExecutor); + store = InMemoryDOMDataStoreFactory.create(name.toString(), null); + + shardMBean = ShardMBeanFactory.getShardStatsMBean(name.toString()); + + } + + private static Map mapPeerAddresses(Map peerAddresses){ + Map map = new HashMap<>(); + + for(Map.Entry entry : peerAddresses.entrySet()){ + map.put(entry.getKey().toString(), entry.getValue()); + } + + return map; } - public static Props props(final String name) { + + + + public static Props props(final ShardIdentifier name, + final Map peerAddresses) { + Preconditions.checkNotNull(name, "name should not be null"); + Preconditions.checkNotNull(peerAddresses, "peerAddresses should not be null"); + return Props.create(new Creator() { @Override public Shard create() throws Exception { - return new Shard(name); + return new Shard(name, peerAddresses); } }); } - @Override - public void onReceive(Object message) throws Exception { - log.debug("Received message {}", message); - if (message instanceof CreateTransactionChain) { - createTransactionChain(); + @Override public void onReceiveCommand(Object message) { + LOG.debug("Received message {} from {}", message.getClass().toString(), + getSender()); + + 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((Persistent) message); - } else if (message instanceof CreateTransaction) { - createTransaction(); + } 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), transactionId.toString()); + + } else if (createTransaction.getTransactionType() + == TransactionProxy.TransactionType.READ_WRITE.ordinal()) { + + shardMBean.incrementReadWriteTransactionCount(); + + return getContext().actorOf( + ShardTransaction + .props(store.newReadWriteTransaction(), getSelf(), + schemaContext), transactionId.toString()); + + + } else if (createTransaction.getTransactionType() + == TransactionProxy.TransactionType.WRITE_ONLY.ordinal()) { + + shardMBean.incrementWriteOnlyTransactionCount(); + + return getContext().actorOf( + ShardTransaction + .props(store.newWriteOnlyTransaction(), getSelf(), + schemaContext), transactionId.toString()); + } else { + // FIXME: This does not seem right + throw new IllegalArgumentException( + "CreateTransaction message has unidentified transaction type=" + + createTransaction.getTransactionType()); } } - private void createTransaction() { - DOMStoreReadWriteTransaction transaction = - store.newReadWriteTransaction(); - ActorRef transactionActor = getContext().actorOf( - ShardTransaction.props(transaction, getSelf())); + private void createTransaction(CreateTransaction createTransaction) { + + ShardTransactionIdentifier transactionId = ShardTransactionIdentifier.builder().remoteTransactionId(createTransaction.getTransactionId()).build(); + LOG.debug("Creating transaction : {} ", transactionId); + ActorRef transactionActor = + createTypedTransactionActor(createTransaction, transactionId); + getSender() - .tell(new CreateTransactionReply(transactionActor.path()), + .tell(new CreateTransactionReply( + Serialization.serializedActorPath(transactionActor), + createTransaction.getTransactionId()).toSerializable(), getSelf()); } - private void commit(Persistent message) { - Modification modification = (Modification) message.payload(); + 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() { @Override public void run() { try { future.get(); - sender.tell(new CommitTransactionReply(), self); + sender + .tell(new CommitTransactionReply().toSerializable(), + self); + shardMBean.incrementCommittedTransactionCount(); + shardMBean.setLastCommittedTransactionTime(new Date()); } catch (InterruptedException | ExecutionException e) { - log.error(e, "An exception happened when committing"); + shardMBean.incrementFailedTransactionsCount(); + sender.tell(new akka.actor.Status.Failure(e),self); } } }, getContext().dispatcher()); } private void handleForwardedCommit(ForwardedCommitTransaction message) { - log.info("received forwarded transaction"); + Object serializedModification = + message.getModification().toSerializable(); + modificationToCohort - .put(message.getModification(), message.getCohort()); - getSelf().forward(Persistent.create(message.getModification()), - getContext()); + .put(serializedModification, message.getCohort()); + + if (persistent) { + this.persistData(getSender(), "identifier", + new CompositeModificationPayload(serializedModification)); + } else { + 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>> + // 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); + + org.opendaylight.yangtools.concepts.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()); @@ -170,9 +339,80 @@ public class Shard extends UntypedProcessor { private void createTransactionChain() { DOMStoreTransactionChain chain = store.createTransactionChain(); ActorRef transactionChain = - getContext().actorOf(ShardTransactionChain.props(chain)); + getContext().actorOf( + ShardTransactionChain.props(chain, schemaContext)); getSender() - .tell(new CreateTransactionChainReply(transactionChain.path()), + .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; + } + } }