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=10dbbc84d873ee54b5421643c00b046043e58114;hb=8e42b08cb626a60919c145b2a46d94114c3905d6;hp=d75edc7922f54ea46d72e4fd62fc4bc0e0aa3143;hpb=da6ca13e3f8ecb73a62f7e8f9ae3bdcae9d851f8;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 d75edc7922..10dbbc84d8 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 @@ -9,34 +9,51 @@ 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.japi.Creator; -import akka.persistence.Persistent; -import akka.persistence.UntypedProcessor; +import akka.serialization.Serialization; +import com.google.common.base.Optional; 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.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.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 scala.concurrent.duration.FiniteDuration; +import java.util.ArrayList; 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
@@ -44,91 +61,289 @@ 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"; - private final InMemoryDOMDataStore store; + private final ListeningExecutorService storeExecutor = + MoreExecutors.listeningDecorator(Executors.newFixedThreadPool(2)); - private final Map modificationToCohort = new HashMap<>(); + private final InMemoryDOMDataStore store; - private final LoggingAdapter log = Logging.getLogger(getContext().system(), this); + private final Map + modificationToCohort = new HashMap<>(); - private Shard(String name){ - store = new InMemoryDOMDataStore(name, storeExecutor); - } + private final LoggingAdapter LOG = + Logging.getLogger(getContext().system(), this); - public static Props props(final String name) { - return Props.create(new Creator() { + // By default persistent will be true and can be turned off using the system + // property persistent + private final boolean persistent; - @Override - public Shard create() throws Exception { - return new Shard(name); - } + private final String name; + + private volatile SchemaContext schemaContext; + + private final ShardStats shardMBean; + + private final List dataChangeListeners = new ArrayList<>(); + + private Shard(String name, Map peerAddresses) { + super(name, peerAddresses, Optional.of(configParams)); + + 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); - }); - } - - @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); - } else if (message instanceof ForwardedCommitTransaction ) { - handleForwardedCommit((ForwardedCommitTransaction) message); - } else if (message instanceof Persistent){ - commit((Persistent) message); } - } - - private void commit(Persistent message) { - Modification modification = (Modification) message.payload(); - DOMStoreThreePhaseCommitCohort cohort = modificationToCohort.remove(modification); - if(cohort == null){ - log.error("Could not find cohort for modification : " + modification); - return; + + 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); + } + + }); } - 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); - } catch (InterruptedException | ExecutionException e) { - log.error(e, "An exception happened when committing"); + + + @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.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 ActorRef createTypedTransactionActor(CreateTransaction createTransaction,String transactionId){ + if(createTransaction.getTransactionType()== TransactionProxy.TransactionType.READ_ONLY.ordinal()){ + return getContext().actorOf( + ShardTransaction.props( store.newReadOnlyTransaction(), getSelf(), schemaContext), transactionId); + + }else if (createTransaction.getTransactionType()== TransactionProxy.TransactionType.READ_WRITE.ordinal()){ + return getContext().actorOf( + ShardTransaction.props( store.newReadWriteTransaction(), getSelf(), schemaContext), transactionId); + + + }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()) ; } - }, getContext().dispatcher()); - } - - private void handleForwardedCommit(ForwardedCommitTransaction message) { - log.info("received forwarded transaction"); - modificationToCohort.put(message.getModification(), message.getCohort()); - getSelf().forward(Persistent.create(message.getModification()), getContext()); - } - - 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()); - } + } + + private void createTransaction(CreateTransaction createTransaction) { + + String transactionId = "shard-" + createTransaction.getTransactionId(); + LOG.info("Creating transaction : {} " , transactionId); + ActorRef transactionActor = createTypedTransactionActor(createTransaction,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"); + 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 e) { + LOG.error("Failed to commit", e); + } catch (ExecutionException e) { + LOG.error("Failed to commit", e); + } + } + + 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()); + + + ActorSelection dataChangeListenerPath = getContext() + .system().actorSelection( + registerChangeListener.getDataChangeListenerPath()); + + + // 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()); + + // 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()); + } + + 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(); + + if(modification != null){ + commit(clientActor, modification); + } else { + LOG.error("modification is null - this is very unexpected"); + } + + + } 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 protected void onStateChanged() { + for(ActorSelection dataChangeListener : dataChangeListeners){ + dataChangeListener.tell(new EnableNotification(isLeader()), getSelf()); + } + + if(getLeaderId() != null){ + shardMBean.setLeader(getLeaderId()); + } + + shardMBean.setRaftState(getRaftState().name()); + } + + @Override public String persistenceId() { + return this.name; + } + + + 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; + } + } }