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=999d0f8bafca9639baa70ea7c893656f87704ae7;hp=8365328669587b5e083c8e53ca819eb63857cd40;hb=17d82f582a6bc13c78be3b19954ff8c021180e93;hpb=bef0749bb2517eaae6a501be501e16a7d3905045 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 8365328669..999d0f8baf 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 @@ -9,63 +9,261 @@ package org.opendaylight.controller.cluster.datastore; import akka.actor.ActorRef; +import akka.actor.ActorSelection; +import akka.actor.Props; import akka.event.Logging; import akka.event.LoggingAdapter; -import akka.persistence.UntypedProcessor; +import akka.japi.Creator; +import akka.serialization.Serialization; +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.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.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.RaftActor; import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeListener; import org.opendaylight.controller.md.sal.dom.store.impl.InMemoryDOMDataStore; +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 java.util.HashMap; +import java.util.Map; +import java.util.concurrent.ExecutionException; import java.util.concurrent.Executors; /** - * A Shard represents a portion of the logical data tree - *

+ * A Shard represents a portion of the logical data tree
+ *

* 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 final ListeningExecutorService storeExecutor = + MoreExecutors.listeningDecorator(Executors.newFixedThreadPool(2)); + + private final InMemoryDOMDataStore store; + + private final Map + modificationToCohort = new HashMap<>(); + + 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 + private final boolean persistent; + + private final String name; + + private SchemaContext schemaContext; + + private final ShardStats shardMBean; + + private Shard(String name, Map peerAddresses) { + super(name, peerAddresses); + + this.name = name; + + String setting = System.getProperty("shard.persistent"); + + this.persistent = !"false".equals(setting); + + LOG.info("Creating shard : {} persistent : {}", name, persistent); + + store = new InMemoryDOMDataStore(name, storeExecutor); + + shardMBean = ShardMBeanFactory.getShardStatsMBean(name); + + } + + public static Props props(final String name, final Map peerAddresses) { + return Props.create(new Creator() { + + @Override + public Shard create() throws Exception { + return new Shard(name, peerAddresses); + } + + }); + } + + + @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.getClass().equals(RegisterChangeListener.SERIALIZABLE_CLASS)) { + registerChangeListener(RegisterChangeListener.fromSerializable(getContext().system(), 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()) { + createTransaction(CreateTransaction.fromSerializable(message)); + } else if(getLeader() != null){ + getLeader().forward(message, getContext()); + } + } else if (message instanceof PeerAddressResolved){ + PeerAddressResolved resolved = (PeerAddressResolved) message; + setPeerAddress(resolved.getPeerId(), resolved.getPeerAddress()); + } else { + super.onReceiveCommand(message); + } + } + + private void createTransaction(CreateTransaction createTransaction) { + DOMStoreReadWriteTransaction transaction = + store.newReadWriteTransaction(); + String transactionId = "shard-" + createTransaction.getTransactionId(); + LOG.info("Creating transaction : {} " , transactionId); + ActorRef transactionActor = getContext().actorOf( + ShardTransaction.props(transaction, getSelf(), schemaContext), transactionId); + + getSender() + .tell(new CreateTransactionReply(Serialization.serializedActorPath(transactionActor), createTransaction.getTransactionId()).toSerializable(), + getSelf()); + } + + private void commit(final ActorRef sender, Object serialized) { + 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"); + modification.apply(store.newReadWriteTransaction()); + return; + } + + final ListenableFuture future = cohort.commit(); + shardMBean.incrementCommittedTransactionCount(); + final ActorRef self = getSelf(); + future.addListener(new Runnable() { + @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"); + } + } + }, getContext().dispatcher()); + } + + private void handleForwardedCommit(ForwardedCommitTransaction message) { + Object serializedModification = message.getModification().toSerializable(); + + modificationToCohort + .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()); - ListeningExecutorService storeExecutor = MoreExecutors.listeningDecorator(Executors.newFixedThreadPool(2)); - private final InMemoryDOMDataStore store = new InMemoryDOMDataStore("OPER", storeExecutor); + ActorSelection dataChangeListenerPath = getContext() + .system().actorSelection( + registerChangeListener.getDataChangeListenerPath()); - LoggingAdapter log = Logging.getLogger(getContext().system(), this); + 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()).toSerializable(), + getSelf()); + } + + private void createTransactionChain() { + DOMStoreTransactionChain chain = store.createTransactionChain(); + ActorRef transactionChain = + getContext().actorOf( + ShardTransactionChain.props(chain, schemaContext)); + 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(); + commit(clientActor, modification); + } else { + LOG.error("Unknown state received {}", data); + } + + } + + @Override protected Object createSnapshot() { + throw new UnsupportedOperationException("createSnapshot"); + } + + @Override protected void applySnapshot(Object snapshot) { + throw new UnsupportedOperationException("applySnapshot"); + } - @Override - public void onReceive(Object message) throws Exception { - if (message instanceof CreateTransactionChain) { - createTransactionChain(); - } else if(message instanceof RegisterChangeListener){ - registerChangeListener((RegisterChangeListener) message); - } else if(message instanceof UpdateSchemaContext){ - updateSchemaContext((UpdateSchemaContext) message); + @Override public String persistenceId() { + return this.name; } - } - - private void updateSchemaContext(UpdateSchemaContext message) { - store.onGlobalContextUpdated(message.getSchemaContext()); - } - - private void registerChangeListener(RegisterChangeListener registerChangeListener) { - org.opendaylight.yangtools.concepts.ListenerRegistration>> registration = - store.registerChangeListener(registerChangeListener.getPath(), registerChangeListener.getListener(), registerChangeListener.getScope()); - ActorRef listenerRegistration = getContext().actorOf(ListenerRegistration.props(registration)); - getSender().tell(new RegisterChangeListenerReply(listenerRegistration.path()), getSelf()); - } - - private void createTransactionChain() { - DOMStoreTransactionChain chain = store.createTransactionChain(); - ActorRef transactionChain = getContext().actorOf(ShardTransactionChain.props(chain)); - getSender().tell(new CreateTransactionChainReply(transactionChain.path()), getSelf()); - } }