/*
- * Copyright (c) 2016 Cisco Systems, Inc. and others. All rights reserved.
+ * Copyright (c) 2016, 2017 Cisco Systems, Inc. and others. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0 which accompanies this distribution,
* and is available at http://www.eclipse.org/legal/epl-v10.html
*/
-
package org.opendaylight.controller.cluster.sharding;
import static akka.actor.ActorRef.noSender;
+import static com.google.common.base.Preconditions.checkArgument;
+import static com.google.common.base.Preconditions.checkState;
+import static java.util.Objects.requireNonNull;
import akka.actor.ActorRef;
import akka.actor.ActorSystem;
import akka.pattern.Patterns;
import akka.util.Timeout;
import com.google.common.base.Optional;
-import com.google.common.base.Preconditions;
import com.google.common.base.Throwables;
+import com.google.common.collect.ClassToInstanceMap;
import com.google.common.collect.ForwardingObject;
+import com.google.common.collect.ImmutableClassToInstanceMap;
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.MoreExecutors;
import com.google.common.util.concurrent.SettableFuture;
import com.google.common.util.concurrent.Uninterruptibles;
import java.util.AbstractMap.SimpleEntry;
-import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
+import java.util.Comparator;
import java.util.EnumMap;
import java.util.HashMap;
import java.util.List;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
-import javax.annotation.Nonnull;
-import javax.annotation.Nullable;
import javax.annotation.concurrent.GuardedBy;
import org.opendaylight.controller.cluster.ActorSystemProvider;
import org.opendaylight.controller.cluster.access.concepts.MemberName;
import org.opendaylight.controller.cluster.databroker.actors.dds.DataStoreClient;
import org.opendaylight.controller.cluster.databroker.actors.dds.SimpleDataStoreClientActor;
-import org.opendaylight.controller.cluster.datastore.DistributedDataStore;
+import org.opendaylight.controller.cluster.datastore.AbstractDataStore;
import org.opendaylight.controller.cluster.datastore.Shard;
import org.opendaylight.controller.cluster.datastore.config.Configuration;
import org.opendaylight.controller.cluster.datastore.config.ModuleShardConfiguration;
import org.opendaylight.controller.cluster.datastore.messages.CreateShard;
import org.opendaylight.controller.cluster.datastore.shardstrategy.ModuleShardStrategy;
-import org.opendaylight.controller.cluster.datastore.utils.ActorContext;
+import org.opendaylight.controller.cluster.datastore.utils.ActorUtils;
import org.opendaylight.controller.cluster.datastore.utils.ClusterUtils;
import org.opendaylight.controller.cluster.dom.api.CDSDataTreeProducer;
import org.opendaylight.controller.cluster.dom.api.CDSShardAccess;
import org.opendaylight.mdsal.dom.api.DOMDataTreeProducer;
import org.opendaylight.mdsal.dom.api.DOMDataTreeProducerException;
import org.opendaylight.mdsal.dom.api.DOMDataTreeService;
+import org.opendaylight.mdsal.dom.api.DOMDataTreeServiceExtension;
import org.opendaylight.mdsal.dom.api.DOMDataTreeShard;
import org.opendaylight.mdsal.dom.api.DOMDataTreeShardingConflictException;
import org.opendaylight.mdsal.dom.api.DOMDataTreeShardingService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import scala.compat.java8.FutureConverters;
-import scala.concurrent.Await;
import scala.concurrent.Future;
import scala.concurrent.Promise;
import scala.concurrent.duration.FiniteDuration;
private final ShardedDOMDataTree shardedDOMDataTree;
private final ActorSystem actorSystem;
- private final DistributedDataStore distributedOperDatastore;
- private final DistributedDataStore distributedConfigDatastore;
+ private final AbstractDataStore distributedOperDatastore;
+ private final AbstractDataStore distributedConfigDatastore;
private final ActorRef shardedDataTreeActor;
private final MemberName memberName;
private final DOMDataTreePrefixTable<DOMDataTreeShardRegistration<DOMDataTreeShard>> shards =
DOMDataTreePrefixTable.create();
- private final EnumMap<LogicalDatastoreType, DistributedShardRegistration> defaultShardRegistrations =
- new EnumMap<>(LogicalDatastoreType.class);
-
private final EnumMap<LogicalDatastoreType, Entry<DataStoreClient, ActorRef>> configurationShardMap =
new EnumMap<>(LogicalDatastoreType.class);
private final PrefixedShardConfigUpdateHandler updateHandler;
public DistributedShardedDOMDataTree(final ActorSystemProvider actorSystemProvider,
- final DistributedDataStore distributedOperDatastore,
- final DistributedDataStore distributedConfigDatastore) {
- this.actorSystem = Preconditions.checkNotNull(actorSystemProvider).getActorSystem();
- this.distributedOperDatastore = Preconditions.checkNotNull(distributedOperDatastore);
- this.distributedConfigDatastore = Preconditions.checkNotNull(distributedConfigDatastore);
+ final AbstractDataStore distributedOperDatastore,
+ final AbstractDataStore distributedConfigDatastore) {
+ this.actorSystem = requireNonNull(actorSystemProvider).getActorSystem();
+ this.distributedOperDatastore = requireNonNull(distributedOperDatastore);
+ this.distributedConfigDatastore = requireNonNull(distributedConfigDatastore);
shardedDOMDataTree = new ShardedDOMDataTree();
shardedDataTreeActor = createShardedDataTreeActor(actorSystem,
new ShardedDataTreeActorCreator()
.setShardingService(this)
.setActorSystem(actorSystem)
- .setClusterWrapper(distributedConfigDatastore.getActorContext().getClusterWrapper())
+ .setClusterWrapper(distributedConfigDatastore.getActorUtils().getClusterWrapper())
.setDistributedConfigDatastore(distributedConfigDatastore)
.setDistributedOperDatastore(distributedOperDatastore)
.setLookupTaskMaxRetries(LOOKUP_TASK_MAX_RETRIES),
ACTOR_ID);
- this.memberName = distributedConfigDatastore.getActorContext().getCurrentMemberName();
+ this.memberName = distributedConfigDatastore.getActorUtils().getCurrentMemberName();
updateHandler = new PrefixedShardConfigUpdateHandler(shardedDataTreeActor,
- distributedConfigDatastore.getActorContext().getCurrentMemberName());
+ distributedConfigDatastore.getActorUtils().getCurrentMemberName());
LOG.debug("{} - Starting prefix configuration shards", memberName);
createPrefixConfigShard(distributedConfigDatastore);
createPrefixConfigShard(distributedOperDatastore);
}
- private void createPrefixConfigShard(final DistributedDataStore dataStore) {
- Configuration configuration = dataStore.getActorContext().getConfiguration();
+ private static void createPrefixConfigShard(final AbstractDataStore dataStore) {
+ Configuration configuration = dataStore.getActorUtils().getConfiguration();
Collection<MemberName> memberNames = configuration.getUniqueMemberNamesForAllShards();
CreateShard createShardMessage =
new CreateShard(new ModuleShardConfiguration(PrefixShards.QNAME.getNamespace(),
"prefix-shard-configuration", ClusterUtils.PREFIX_CONFIG_SHARD_ID, ModuleShardStrategy.NAME,
memberNames),
- Shard.builder(), dataStore.getActorContext().getDatastoreContext());
+ Shard.builder(), dataStore.getActorUtils().getDatastoreContext());
- dataStore.getActorContext().getShardManager().tell(createShardMessage, noSender());
+ dataStore.getActorUtils().getShardManager().tell(createShardMessage, noSender());
}
/**
public void init() {
// create our writers to the configuration
try {
- LOG.debug("{} - starting config shard lookup.",
- distributedConfigDatastore.getActorContext().getCurrentMemberName());
+ LOG.debug("{} - starting config shard lookup.", memberName);
// We have to wait for prefix config shards to be up and running
// so we can create datastore clients for them
handleConfigShardLookup().get(SHARD_FUTURE_TIMEOUT_DURATION.length(), SHARD_FUTURE_TIMEOUT_DURATION.unit());
-
- LOG.debug("Prefix configuration shards ready - creating clients");
-
} catch (InterruptedException | ExecutionException | TimeoutException e) {
throw new IllegalStateException("Prefix config shards not found", e);
}
try {
- LOG.debug("Prefix configuration shards ready - creating clients");
+ LOG.debug("{}: Prefix configuration shards ready - creating clients", memberName);
configurationShardMap.put(LogicalDatastoreType.CONFIGURATION,
createDatastoreClient(ClusterUtils.PREFIX_CONFIG_SHARD_ID,
- distributedConfigDatastore.getActorContext()));
+ distributedConfigDatastore.getActorUtils()));
} catch (final DOMDataTreeShardCreationFailedException e) {
throw new IllegalStateException(
"Unable to create datastoreClient for config DS prefix configuration shard.", e);
try {
configurationShardMap.put(LogicalDatastoreType.OPERATIONAL,
createDatastoreClient(ClusterUtils.PREFIX_CONFIG_SHARD_ID,
- distributedOperDatastore.getActorContext()));
+ distributedOperDatastore.getActorUtils()));
} catch (final DOMDataTreeShardCreationFailedException e) {
throw new IllegalStateException(
updateHandler.initListener(distributedConfigDatastore, LogicalDatastoreType.CONFIGURATION);
updateHandler.initListener(distributedOperDatastore, LogicalDatastoreType.OPERATIONAL);
- distributedConfigDatastore.getActorContext().getShardManager().tell(InitConfigListener.INSTANCE, noSender());
- distributedOperDatastore.getActorContext().getShardManager().tell(InitConfigListener.INSTANCE, noSender());
+ distributedConfigDatastore.getActorUtils().getShardManager().tell(InitConfigListener.INSTANCE, noSender());
+ distributedOperDatastore.getActorUtils().getShardManager().tell(InitConfigListener.INSTANCE, noSender());
//create shard registration for DEFAULT_SHARD
- try {
- defaultShardRegistrations.put(LogicalDatastoreType.CONFIGURATION,
- initDefaultShard(LogicalDatastoreType.CONFIGURATION));
- } catch (final InterruptedException | ExecutionException e) {
- throw new IllegalStateException("Unable to create default shard frontend for config shard", e);
- }
-
- try {
- defaultShardRegistrations.put(LogicalDatastoreType.OPERATIONAL,
- initDefaultShard(LogicalDatastoreType.OPERATIONAL));
- } catch (final InterruptedException | ExecutionException e) {
- throw new IllegalStateException("Unable to create default shard frontend for operational shard", e);
- }
+ initDefaultShard(LogicalDatastoreType.CONFIGURATION);
+ initDefaultShard(LogicalDatastoreType.OPERATIONAL);
}
private ListenableFuture<List<Void>> handleConfigShardLookup() {
ask.onComplete(new OnComplete<Object>() {
@Override
- public void onComplete(final Throwable throwable, final Object result) throws Throwable {
+ public void onComplete(final Throwable throwable, final Object result) {
if (throwable != null) {
future.setException(throwable);
} else {
return future;
}
- @Nonnull
@Override
public <T extends DOMDataTreeListener> ListenerRegistration<T> registerListener(
final T listener, final Collection<DOMDataTreeIdentifier> subtrees,
return shardedDOMDataTree.registerListener(listener, subtrees, allowRxMerges, producers);
}
- @Nonnull
@Override
- public DOMDataTreeProducer createProducer(@Nonnull final Collection<DOMDataTreeIdentifier> subtrees) {
- LOG.debug("{} - Creating producer for {}",
- distributedConfigDatastore.getActorContext().getClusterWrapper().getCurrentMemberName(), subtrees);
+ public ClassToInstanceMap<DOMDataTreeServiceExtension> getExtensions() {
+ return ImmutableClassToInstanceMap.of();
+ }
+
+ @Override
+ public DOMDataTreeProducer createProducer(final Collection<DOMDataTreeIdentifier> subtrees) {
+ LOG.debug("{} - Creating producer for {}", memberName, subtrees);
final DOMDataTreeProducer producer = shardedDOMDataTree.createProducer(subtrees);
- final Object response = distributedConfigDatastore.getActorContext()
+ final Object response = distributedConfigDatastore.getActorUtils()
.executeOperation(shardedDataTreeActor, new ProducerCreated(subtrees));
if (response == null) {
- LOG.debug("{} - Received success from remote nodes, creating producer:{}",
- distributedConfigDatastore.getActorContext().getClusterWrapper().getCurrentMemberName(), subtrees);
+ LOG.debug("{} - Received success from remote nodes, creating producer:{}", memberName, subtrees);
return new ProxyProducer(producer, subtrees, shardedDataTreeActor,
- distributedConfigDatastore.getActorContext());
- } else if (response instanceof Exception) {
- closeProducer(producer);
- throw Throwables.propagate((Exception) response);
- } else {
- closeProducer(producer);
- throw new RuntimeException("Unexpected response to create producer received." + response);
+ distributedConfigDatastore.getActorUtils(), shards);
+ }
+
+ closeProducer(producer);
+
+ if (response instanceof Throwable) {
+ Throwables.throwIfUnchecked((Throwable) response);
+ throw new RuntimeException((Throwable) response);
}
+ throw new RuntimeException("Unexpected response to create producer received." + response);
}
@Override
final Promise<DistributedShardRegistration> shardRegistrationPromise = akka.dispatch.Futures.promise();
Futures.addCallback(writeFuture, new FutureCallback<Void>() {
@Override
- public void onSuccess(@Nullable final Void result) {
+ public void onSuccess(final Void result) {
final Future<Object> ask =
Patterns.ask(shardedDataTreeActor, new LookupPrefixShard(prefix), SHARD_FUTURE_TIMEOUT);
shardRegistrationPromise.failure(
new DOMDataTreeShardCreationFailedException("Unable to create a cds shard.", throwable));
}
- });
+ }, MoreExecutors.directExecutor());
return FutureConverters.toJava(shardRegistrationPromise.future());
}
void resolveShardAdditions(final Set<DOMDataTreeIdentifier> additions) {
- LOG.debug("Member {}: Resolving additions : {}", memberName, additions);
- final ArrayList<DOMDataTreeIdentifier> list = new ArrayList<>(additions);
+ LOG.debug("{}: Resolving additions : {}", memberName, additions);
// we need to register the shards from top to bottom, so we need to atleast make sure the ordering reflects that
- Collections.sort(list, (o1, o2) -> {
- if (o1.getRootIdentifier().getPathArguments().size() < o2.getRootIdentifier().getPathArguments().size()) {
- return -1;
- } else if (o1.getRootIdentifier().getPathArguments().size()
- == o2.getRootIdentifier().getPathArguments().size()) {
- return 0;
- } else {
- return 1;
- }
- });
- list.forEach(this::createShardFrontend);
+ additions
+ .stream()
+ .sorted(Comparator.comparingInt(o -> o.getRootIdentifier().getPathArguments().size()))
+ .forEachOrdered(this::createShardFrontend);
}
void resolveShardRemovals(final Set<DOMDataTreeIdentifier> removals) {
- LOG.debug("Member {}: Resolving removals : {}", memberName, removals);
+ LOG.debug("{}: Resolving removals : {}", memberName, removals);
// do we need to go from bottom to top?
removals.forEach(this::despawnShardFrontend);
}
private void createShardFrontend(final DOMDataTreeIdentifier prefix) {
- LOG.debug("Member {}: Creating CDS shard for prefix: {}", memberName, prefix);
+ LOG.debug("{}: Creating CDS shard for prefix: {}", memberName, prefix);
final String shardName = ClusterUtils.getCleanShardName(prefix.getRootIdentifier());
- final DistributedDataStore distributedDataStore =
+ final AbstractDataStore distributedDataStore =
prefix.getDatastoreType().equals(org.opendaylight.mdsal.common.api.LogicalDatastoreType.CONFIGURATION)
? distributedConfigDatastore : distributedOperDatastore;
- try (final DOMDataTreeProducer producer = localCreateProducer(Collections.singletonList(prefix))) {
+ try (DOMDataTreeProducer producer = localCreateProducer(Collections.singletonList(prefix))) {
final Entry<DataStoreClient, ActorRef> entry =
- createDatastoreClient(shardName, distributedDataStore.getActorContext());
+ createDatastoreClient(shardName, distributedDataStore.getActorUtils());
final DistributedShardFrontend shard =
new DistributedShardFrontend(distributedDataStore, entry.getKey(), prefix);
- @SuppressWarnings("unchecked")
final DOMDataTreeShardRegistration<DOMDataTreeShard> reg =
- (DOMDataTreeShardRegistration) shardedDOMDataTree.registerDataTreeShard(prefix, shard, producer);
+ shardedDOMDataTree.registerDataTreeShard(prefix, shard, producer);
synchronized (shards) {
shards.store(prefix, reg);
} catch (final DOMDataTreeShardingConflictException e) {
LOG.error("{}: Prefix {} is already occupied by another shard",
- distributedConfigDatastore.getActorContext().getClusterWrapper().getCurrentMemberName(), prefix, e);
+ distributedConfigDatastore.getActorUtils().getClusterWrapper().getCurrentMemberName(), prefix, e);
} catch (DOMDataTreeProducerException e) {
LOG.error("Unable to close producer", e);
} catch (DOMDataTreeShardCreationFailedException e) {
}
private void despawnShardFrontend(final DOMDataTreeIdentifier prefix) {
- LOG.debug("Member {}: Removing CDS shard for prefix: {}", memberName, prefix);
+ LOG.debug("{}: Removing CDS shard for prefix: {}", memberName, prefix);
final DOMDataTreePrefixTableEntry<DOMDataTreeShardRegistration<DOMDataTreeShard>> lookup;
synchronized (shards) {
lookup = shards.lookup(prefix);
}
if (lookup == null || !lookup.getValue().getPrefix().equals(prefix)) {
- LOG.debug("Member {}: Received despawn for non-existing CDS shard frontend, prefix: {}, ignoring..",
+ LOG.debug("{}: Received despawn for non-existing CDS shard frontend, prefix: {}, ignoring..",
memberName, prefix);
return;
}
Futures.addCallback(future, new FutureCallback<Void>() {
@Override
- public void onSuccess(@Nullable Void result) {
+ public void onSuccess(final Void result) {
LOG.debug("{} - Succesfuly removed shard for {}", memberName, prefix);
}
@Override
- public void onFailure(Throwable throwable) {
+ public void onFailure(final Throwable throwable) {
LOG.error("Removal of shard {} from configuration failed.", prefix, throwable);
}
- });
+ }, MoreExecutors.directExecutor());
}
DOMDataTreePrefixTableEntry<DOMDataTreeShardRegistration<DOMDataTreeShard>> lookupShardFrontend(
final DOMDataTreeIdentifier prefix) {
- return shards.lookup(prefix);
-
+ synchronized (shards) {
+ return shards.lookup(prefix);
+ }
}
DOMDataTreeProducer localCreateProducer(final Collection<DOMDataTreeIdentifier> prefix) {
return shardedDOMDataTree.createProducer(prefix);
}
- @Nonnull
@Override
public <T extends DOMDataTreeShard> ListenerRegistration<T> registerDataTreeShard(
- @Nonnull final DOMDataTreeIdentifier prefix,
- @Nonnull final T shard,
- @Nonnull final DOMDataTreeProducer producer)
- throws DOMDataTreeShardingConflictException {
+ final DOMDataTreeIdentifier prefix, final T shard, final DOMDataTreeProducer producer)
+ throws DOMDataTreeShardingConflictException {
LOG.debug("Registering shard[{}] at prefix: {}", shard, prefix);
}
@SuppressWarnings("checkstyle:IllegalCatch")
- private Entry<DataStoreClient, ActorRef> createDatastoreClient(
- final String shardName, final ActorContext actorContext)
+ private Entry<DataStoreClient, ActorRef> createDatastoreClient(final String shardName, final ActorUtils actorUtils)
throws DOMDataTreeShardCreationFailedException {
- LOG.debug("Creating distributed datastore client for shard {}", shardName);
+ LOG.debug("{}: Creating distributed datastore client for shard {}", memberName, shardName);
final Props distributedDataStoreClientProps =
- SimpleDataStoreClientActor.props(memberName, "Shard-" + shardName, actorContext, shardName);
+ SimpleDataStoreClientActor.props(memberName, "Shard-" + shardName, actorUtils, shardName);
final ActorRef clientActor = actorSystem.actorOf(distributedDataStoreClientProps);
try {
return new SimpleEntry<>(SimpleDataStoreClientActor
.getDistributedDataStoreClient(clientActor, 30, TimeUnit.SECONDS), clientActor);
} catch (final Exception e) {
- LOG.error("Failed to get actor for {}", distributedDataStoreClientProps, e);
+ LOG.error("{}: Failed to get actor for {}", distributedDataStoreClientProps, memberName, e);
clientActor.tell(PoisonPill.getInstance(), noSender());
throw new DOMDataTreeShardCreationFailedException(
"Unable to create datastore client for shard{" + shardName + "}", e);
}
@SuppressWarnings("checkstyle:IllegalCatch")
- private DistributedShardRegistration initDefaultShard(final LogicalDatastoreType logicalDatastoreType)
- throws ExecutionException, InterruptedException {
- final Collection<MemberName> names =
- distributedConfigDatastore.getActorContext().getConfiguration().getUniqueMemberNamesForAllShards();
+ private void initDefaultShard(final LogicalDatastoreType logicalDatastoreType) {
final PrefixedShardConfigWriter writer = writerMap.get(logicalDatastoreType);
if (writer.checkDefaultIsPresent()) {
- LOG.debug("Default shard for {} is already present in the config. Possibly saved in snapshot.",
- logicalDatastoreType);
- return new DistributedShardRegistrationImpl(
- new DOMDataTreeIdentifier(logicalDatastoreType, YangInstanceIdentifier.EMPTY),
- shardedDataTreeActor, this);
+ LOG.debug("{}: Default shard for {} is already present in the config. Possibly saved in snapshot.",
+ memberName, logicalDatastoreType);
} else {
try {
- // There can be situation when there is already started default shard
- // because it is present in modules.conf. In that case we have to create
- // just frontend for default shard, but not shard itself
- // TODO we don't have to do it for config and operational default shard
- // separately. Just one of them should be enough
- final ActorContext actorContext = logicalDatastoreType == LogicalDatastoreType.CONFIGURATION
- ? distributedConfigDatastore.getActorContext() : distributedOperDatastore.getActorContext();
+ // Currently the default shard configuration is present in the out-of-box modules.conf and is
+ // expected to be present. So look up the local default shard here and create the frontend.
+
+ // TODO we don't have to do it for config and operational default shard separately. Just one of them
+ // should be enough
+ final ActorUtils actorUtils = logicalDatastoreType == LogicalDatastoreType.CONFIGURATION
+ ? distributedConfigDatastore.getActorUtils() : distributedOperDatastore.getActorUtils();
final Optional<ActorRef> defaultLocalShardOptional =
- actorContext.findLocalShard(ClusterUtils.getCleanShardName(YangInstanceIdentifier.EMPTY));
+ actorUtils.findLocalShard(ClusterUtils.getCleanShardName(YangInstanceIdentifier.EMPTY));
if (defaultLocalShardOptional.isPresent()) {
- LOG.debug("{} Default shard is already started, creating just frontend", logicalDatastoreType);
+ LOG.debug("{}: Default shard for {} is already started, creating just frontend", memberName,
+ logicalDatastoreType);
createShardFrontend(new DOMDataTreeIdentifier(logicalDatastoreType, YangInstanceIdentifier.EMPTY));
- return new DistributedShardRegistrationImpl(
- new DOMDataTreeIdentifier(logicalDatastoreType, YangInstanceIdentifier.EMPTY),
- shardedDataTreeActor, this);
}
- // we should probably only have one node create the default shards
- return Await.result(FutureConverters.toScala(createDistributedShard(
- new DOMDataTreeIdentifier(logicalDatastoreType, YangInstanceIdentifier.EMPTY), names)),
- SHARD_FUTURE_TIMEOUT_DURATION);
- } catch (DOMDataTreeShardingConflictException e) {
- LOG.debug("Default shard already registered, possibly due to other node doing it faster");
- return new DistributedShardRegistrationImpl(
- new DOMDataTreeIdentifier(logicalDatastoreType, YangInstanceIdentifier.EMPTY),
- shardedDataTreeActor, this);
+ // The local shard isn't present - we assume that means the local member isn't in the replica list
+ // and will be dynamically created later via an explicit add-shard-replica request. This is the
+ // bootstrapping mechanism to add a new node into an existing cluster. The following code to create
+ // the default shard as a prefix shard is problematic in this scenario so it is commented out. Since
+ // the default shard is a module-based shard by default, it makes sense to always treat it as such,
+ // ie bootstrap it in the same manner as the special prefix-configuration and EOS shards.
+// final Collection<MemberName> names = distributedConfigDatastore.getActorUtils().getConfiguration()
+// .getUniqueMemberNamesForAllShards();
+// Await.result(FutureConverters.toScala(createDistributedShard(
+// new DOMDataTreeIdentifier(logicalDatastoreType, YangInstanceIdentifier.EMPTY), names)),
+// SHARD_FUTURE_TIMEOUT_DURATION);
+// } catch (DOMDataTreeShardingConflictException e) {
+// LOG.debug("{}: Default shard for {} already registered, possibly due to other node doing it faster",
+// memberName, logicalDatastoreType);
} catch (Exception e) {
- LOG.error("{} default shard initialization failed", logicalDatastoreType, e);
+ LOG.error("{}: Default shard initialization for {} failed", memberName, logicalDatastoreType, e);
throw new RuntimeException(e);
}
}
private final DOMDataTreeProducer delegate;
private final Collection<DOMDataTreeIdentifier> subtrees;
private final ActorRef shardDataTreeActor;
- private final ActorContext actorContext;
+ private final ActorUtils actorUtils;
@GuardedBy("shardAccessMap")
private final Map<DOMDataTreeIdentifier, CDSShardAccessImpl> shardAccessMap = new HashMap<>();
+ // We don't have to guard access to shardTable in ProxyProducer.
+ // ShardTable's entries relevant to this ProxyProducer shouldn't
+ // change during producer's lifetime.
+ private final DOMDataTreePrefixTable<DOMDataTreeShardRegistration<DOMDataTreeShard>> shardTable;
+
ProxyProducer(final DOMDataTreeProducer delegate,
final Collection<DOMDataTreeIdentifier> subtrees,
final ActorRef shardDataTreeActor,
- final ActorContext actorContext) {
- this.delegate = Preconditions.checkNotNull(delegate);
- this.subtrees = Preconditions.checkNotNull(subtrees);
- this.shardDataTreeActor = Preconditions.checkNotNull(shardDataTreeActor);
- this.actorContext = Preconditions.checkNotNull(actorContext);
+ final ActorUtils actorUtils,
+ final DOMDataTreePrefixTable<DOMDataTreeShardRegistration<DOMDataTreeShard>> shardLayout) {
+ this.delegate = requireNonNull(delegate);
+ this.subtrees = requireNonNull(subtrees);
+ this.shardDataTreeActor = requireNonNull(shardDataTreeActor);
+ this.actorUtils = requireNonNull(actorUtils);
+ this.shardTable = requireNonNull(shardLayout);
}
- @Nonnull
@Override
public DOMDataTreeCursorAwareTransaction createTransaction(final boolean isolated) {
return delegate.createTransaction(isolated);
}
- @Nonnull
@Override
- public DOMDataTreeProducer createProducer(@Nonnull final Collection<DOMDataTreeIdentifier> subtrees) {
+ @SuppressWarnings("checkstyle:hiddenField")
+ public DOMDataTreeProducer createProducer(final Collection<DOMDataTreeIdentifier> subtrees) {
// TODO we probably don't need to distribute this on the remote nodes since once we have this producer
// open we surely have the rights to all the subtrees.
return delegate.createProducer(subtrees);
@SuppressWarnings("checkstyle:IllegalCatch")
public void close() throws DOMDataTreeProducerException {
delegate.close();
+
synchronized (shardAccessMap) {
shardAccessMap.values().forEach(CDSShardAccessImpl::close);
}
- final Object o = actorContext.executeOperation(shardDataTreeActor, new ProducerRemoved(subtrees));
+ final Object o = actorUtils.executeOperation(shardDataTreeActor, new ProducerRemoved(subtrees));
if (o instanceof DOMDataTreeProducerException) {
- throw ((DOMDataTreeProducerException) o);
+ throw (DOMDataTreeProducerException) o;
} else if (o instanceof Throwable) {
throw new DOMDataTreeProducerException("Unable to close producer", (Throwable) o);
}
return delegate;
}
- @Nonnull
@Override
- public CDSShardAccess getShardAccess(@Nonnull final DOMDataTreeIdentifier subtree) {
+ public CDSShardAccess getShardAccess(final DOMDataTreeIdentifier subtree) {
+ checkArgument(subtrees.stream().anyMatch(dataTreeIdentifier -> dataTreeIdentifier.contains(subtree)),
+ "Subtree %s is not controlled by this producer %s", subtree, this);
+
+ final DOMDataTreePrefixTableEntry<DOMDataTreeShardRegistration<DOMDataTreeShard>> lookup =
+ shardTable.lookup(subtree);
+ checkState(lookup != null, "Subtree %s is not contained in any registered shard.", subtree);
+
+ final DOMDataTreeIdentifier lookupId = lookup.getValue().getPrefix();
+
synchronized (shardAccessMap) {
- Preconditions.checkArgument(subtrees.contains(subtree),
- "Subtree {} is not controlled by this producer {}", subtree, this);
- if (shardAccessMap.get(subtree) != null) {
- return shardAccessMap.get(subtree);
+ if (shardAccessMap.get(lookupId) != null) {
+ return shardAccessMap.get(lookupId);
}
// TODO Maybe we can have static factory method and return the same instance
// for same subtrees. But maybe it is not needed since there can be only one
// producer attached to some subtree at a time. And also how we can close ShardAccess
// then
- final CDSShardAccessImpl shardAccess = new CDSShardAccessImpl(subtree, actorContext);
- return shardAccessMap.put(subtree, shardAccess);
+ final CDSShardAccessImpl shardAccess = new CDSShardAccessImpl(lookupId, actorUtils);
+ shardAccessMap.put(lookupId, shardAccess);
+ return shardAccess;
}
}
}