* 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.datastore.shardmanager;
-import static akka.pattern.Patterns.ask;
import static java.util.Objects.requireNonNull;
import akka.actor.ActorRef;
import akka.persistence.SnapshotSelectionCriteria;
import akka.util.Timeout;
import com.google.common.annotations.VisibleForTesting;
+import com.google.common.util.concurrent.SettableFuture;
import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
import java.util.ArrayList;
import java.util.Collection;
-import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
-import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
import java.util.function.Consumer;
import org.opendaylight.controller.cluster.access.concepts.MemberName;
import org.opendaylight.controller.cluster.common.actor.AbstractUntypedPersistentActorWithMetering;
import org.opendaylight.controller.cluster.common.actor.Dispatchers;
-import org.opendaylight.controller.cluster.datastore.AbstractDataStore;
import org.opendaylight.controller.cluster.datastore.ClusterWrapper;
import org.opendaylight.controller.cluster.datastore.DatastoreContext;
-import org.opendaylight.controller.cluster.datastore.DatastoreContext.Builder;
import org.opendaylight.controller.cluster.datastore.DatastoreContextFactory;
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.config.PrefixShardConfiguration;
import org.opendaylight.controller.cluster.datastore.exceptions.AlreadyExistsException;
import org.opendaylight.controller.cluster.datastore.exceptions.NoShardLeaderException;
import org.opendaylight.controller.cluster.datastore.exceptions.NotInitializedException;
import org.opendaylight.controller.cluster.datastore.exceptions.PrimaryNotFoundException;
import org.opendaylight.controller.cluster.datastore.identifiers.ShardIdentifier;
import org.opendaylight.controller.cluster.datastore.messages.ActorInitialized;
-import org.opendaylight.controller.cluster.datastore.messages.AddPrefixShardReplica;
import org.opendaylight.controller.cluster.datastore.messages.AddShardReplica;
import org.opendaylight.controller.cluster.datastore.messages.ChangeShardMembersVotingStatus;
import org.opendaylight.controller.cluster.datastore.messages.CreateShard;
import org.opendaylight.controller.cluster.datastore.messages.LocalShardNotFound;
import org.opendaylight.controller.cluster.datastore.messages.RemoteFindPrimary;
import org.opendaylight.controller.cluster.datastore.messages.RemotePrimaryShardFound;
-import org.opendaylight.controller.cluster.datastore.messages.RemovePrefixShardReplica;
import org.opendaylight.controller.cluster.datastore.messages.RemoveShardReplica;
import org.opendaylight.controller.cluster.datastore.messages.ShardLeaderStateChanged;
import org.opendaylight.controller.cluster.datastore.messages.UpdateSchemaContext;
import org.opendaylight.controller.cluster.datastore.persisted.DatastoreSnapshot;
import org.opendaylight.controller.cluster.datastore.persisted.ShardManagerSnapshot;
-import org.opendaylight.controller.cluster.datastore.utils.ClusterUtils;
import org.opendaylight.controller.cluster.datastore.utils.CompositeOnComplete;
import org.opendaylight.controller.cluster.datastore.utils.PrimaryShardInfoFutureCache;
import org.opendaylight.controller.cluster.notifications.RegisterRoleChangeListener;
import org.opendaylight.controller.cluster.raft.messages.ServerChangeStatus;
import org.opendaylight.controller.cluster.raft.messages.ServerRemoved;
import org.opendaylight.controller.cluster.raft.policy.DisableElectionsRaftPolicy;
-import org.opendaylight.controller.cluster.sharding.PrefixedShardConfigUpdateHandler;
-import org.opendaylight.controller.cluster.sharding.messages.InitConfigListener;
-import org.opendaylight.controller.cluster.sharding.messages.PrefixShardCreated;
-import org.opendaylight.controller.cluster.sharding.messages.PrefixShardRemoved;
-import org.opendaylight.mdsal.dom.api.DOMDataTreeIdentifier;
import org.opendaylight.yangtools.concepts.Registration;
-import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
-import org.opendaylight.yangtools.yang.model.api.SchemaContext;
+import org.opendaylight.yangtools.yang.common.Empty;
+import org.opendaylight.yangtools.yang.model.api.EffectiveModelContext;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import scala.concurrent.ExecutionContext;
private DatastoreContextFactory datastoreContextFactory;
- private final CountDownLatch waitTillReadyCountdownLatch;
+ private final SettableFuture<Empty> readinessFuture;
private final PrimaryShardInfoFutureCache primaryShardInfoCache;
@VisibleForTesting
final ShardPeerAddressResolver peerAddressResolver;
- private SchemaContext schemaContext;
+ private EffectiveModelContext modelContext;
private DatastoreSnapshot restoreFromSnapshot;
private final Set<Consumer<String>> shardAvailabilityCallbacks = new HashSet<>();
private final String persistenceId;
- private final AbstractDataStore dataStore;
-
- private PrefixedShardConfigUpdateHandler configUpdateHandler;
+ @SuppressFBWarnings(value = "MC_OVERRIDABLE_METHOD_CALL_IN_CONSTRUCTOR", justification = "Akka class design")
ShardManager(final AbstractShardManagerCreator<?> builder) {
- this.cluster = builder.getCluster();
- this.configuration = builder.getConfiguration();
- this.datastoreContextFactory = builder.getDatastoreContextFactory();
- this.type = datastoreContextFactory.getBaseDatastoreContext().getDataStoreName();
- this.shardDispatcherPath =
- new Dispatchers(context().system().dispatchers()).getDispatcherPath(Dispatchers.DispatcherType.Shard);
- this.waitTillReadyCountdownLatch = builder.getWaitTillReadyCountDownLatch();
- this.primaryShardInfoCache = builder.getPrimaryShardInfoCache();
- this.restoreFromSnapshot = builder.getRestoreFromSnapshot();
+ cluster = builder.getCluster();
+ configuration = builder.getConfiguration();
+ datastoreContextFactory = builder.getDatastoreContextFactory();
+ type = datastoreContextFactory.getBaseDatastoreContext().getDataStoreName();
+ shardDispatcherPath = new Dispatchers(context().system().dispatchers())
+ .getDispatcherPath(Dispatchers.DispatcherType.Shard);
+ readinessFuture = builder.getReadinessFuture();
+ primaryShardInfoCache = builder.getPrimaryShardInfoCache();
+ restoreFromSnapshot = builder.getRestoreFromSnapshot();
String possiblePersistenceId = datastoreContextFactory.getBaseDatastoreContext().getShardManagerPersistenceId();
persistenceId = possiblePersistenceId != null ? possiblePersistenceId : "shard-manager-" + type;
cluster.subscribeToMemberEvents(getSelf());
shardManagerMBean = new ShardManagerInfo(getSelf(), cluster.getCurrentMemberName(),
- "shard-manager-" + this.type,
+ "shard-manager-" + type,
datastoreContextFactory.getBaseDatastoreContext().getDataStoreMXBeanType());
shardManagerMBean.registerMBean();
-
- dataStore = builder.getDistributedDataStore();
}
@Override
@Override
public void handleCommand(final Object message) throws Exception {
- if (message instanceof FindPrimary) {
- findPrimary((FindPrimary)message);
- } else if (message instanceof FindLocalShard) {
- findLocalShard((FindLocalShard) message);
- } else if (message instanceof UpdateSchemaContext) {
- updateSchemaContext(message);
- } else if (message instanceof ActorInitialized) {
- onActorInitialized(message);
- } else if (message instanceof ClusterEvent.MemberUp) {
- memberUp((ClusterEvent.MemberUp) message);
- } else if (message instanceof ClusterEvent.MemberWeaklyUp) {
- memberWeaklyUp((ClusterEvent.MemberWeaklyUp) message);
- } else if (message instanceof ClusterEvent.MemberExited) {
- memberExited((ClusterEvent.MemberExited) message);
- } else if (message instanceof ClusterEvent.MemberRemoved) {
- memberRemoved((ClusterEvent.MemberRemoved) message);
- } else if (message instanceof ClusterEvent.UnreachableMember) {
- memberUnreachable((ClusterEvent.UnreachableMember) message);
- } else if (message instanceof ClusterEvent.ReachableMember) {
- memberReachable((ClusterEvent.ReachableMember) message);
- } else if (message instanceof DatastoreContextFactory) {
- onDatastoreContextFactory((DatastoreContextFactory) message);
- } else if (message instanceof RoleChangeNotification) {
- onRoleChangeNotification((RoleChangeNotification) message);
- } else if (message instanceof FollowerInitialSyncUpStatus) {
- onFollowerInitialSyncStatus((FollowerInitialSyncUpStatus) message);
- } else if (message instanceof ShardNotInitializedTimeout) {
- onShardNotInitializedTimeout((ShardNotInitializedTimeout) message);
- } else if (message instanceof ShardLeaderStateChanged) {
- onLeaderStateChanged((ShardLeaderStateChanged) message);
- } else if (message instanceof SwitchShardBehavior) {
- onSwitchShardBehavior((SwitchShardBehavior) message);
- } else if (message instanceof CreateShard) {
- onCreateShard((CreateShard)message);
- } else if (message instanceof AddShardReplica) {
- onAddShardReplica((AddShardReplica) message);
- } else if (message instanceof AddPrefixShardReplica) {
- onAddPrefixShardReplica((AddPrefixShardReplica) message);
- } else if (message instanceof PrefixShardCreated) {
- onPrefixShardCreated((PrefixShardCreated) message);
- } else if (message instanceof PrefixShardRemoved) {
- onPrefixShardRemoved((PrefixShardRemoved) message);
- } else if (message instanceof InitConfigListener) {
- onInitConfigListener();
- } else if (message instanceof ForwardedAddServerReply) {
- ForwardedAddServerReply msg = (ForwardedAddServerReply)message;
- onAddServerReply(msg.shardInfo, msg.addServerReply, getSender(), msg.leaderPath,
- msg.removeShardOnFailure);
- } else if (message instanceof ForwardedAddServerFailure) {
- ForwardedAddServerFailure msg = (ForwardedAddServerFailure)message;
+ if (message instanceof FindPrimary msg) {
+ findPrimary(msg);
+ } else if (message instanceof FindLocalShard msg) {
+ findLocalShard(msg);
+ } else if (message instanceof UpdateSchemaContext msg) {
+ updateSchemaContext(msg);
+ } else if (message instanceof ActorInitialized msg) {
+ onActorInitialized(msg);
+ } else if (message instanceof ClusterEvent.MemberUp msg) {
+ memberUp(msg);
+ } else if (message instanceof ClusterEvent.MemberWeaklyUp msg) {
+ memberWeaklyUp(msg);
+ } else if (message instanceof ClusterEvent.MemberExited msg) {
+ memberExited(msg);
+ } else if (message instanceof ClusterEvent.MemberRemoved msg) {
+ memberRemoved(msg);
+ } else if (message instanceof ClusterEvent.UnreachableMember msg) {
+ memberUnreachable(msg);
+ } else if (message instanceof ClusterEvent.ReachableMember msg) {
+ memberReachable(msg);
+ } else if (message instanceof DatastoreContextFactory msg) {
+ onDatastoreContextFactory(msg);
+ } else if (message instanceof RoleChangeNotification msg) {
+ onRoleChangeNotification(msg);
+ } else if (message instanceof FollowerInitialSyncUpStatus msg) {
+ onFollowerInitialSyncStatus(msg);
+ } else if (message instanceof ShardNotInitializedTimeout msg) {
+ onShardNotInitializedTimeout(msg);
+ } else if (message instanceof ShardLeaderStateChanged msg) {
+ onLeaderStateChanged(msg);
+ } else if (message instanceof SwitchShardBehavior msg) {
+ onSwitchShardBehavior(msg);
+ } else if (message instanceof CreateShard msg) {
+ onCreateShard(msg);
+ } else if (message instanceof AddShardReplica msg) {
+ onAddShardReplica(msg);
+ } else if (message instanceof ForwardedAddServerReply msg) {
+ onAddServerReply(msg.shardInfo, msg.addServerReply, getSender(), msg.leaderPath, msg.removeShardOnFailure);
+ } else if (message instanceof ForwardedAddServerFailure msg) {
onAddServerFailure(msg.shardName, msg.failureMessage, msg.failure, getSender(), msg.removeShardOnFailure);
- } else if (message instanceof RemoveShardReplica) {
- onRemoveShardReplica((RemoveShardReplica) message);
- } else if (message instanceof RemovePrefixShardReplica) {
- onRemovePrefixShardReplica((RemovePrefixShardReplica) message);
- } else if (message instanceof WrappedShardResponse) {
- onWrappedShardResponse((WrappedShardResponse) message);
- } else if (message instanceof GetSnapshot) {
- onGetSnapshot();
- } else if (message instanceof ServerRemoved) {
- onShardReplicaRemoved((ServerRemoved) message);
- } else if (message instanceof ChangeShardMembersVotingStatus) {
- onChangeShardServersVotingStatus((ChangeShardMembersVotingStatus) message);
- } else if (message instanceof FlipShardMembersVotingStatus) {
- onFlipShardMembersVotingStatus((FlipShardMembersVotingStatus) message);
- } else if (message instanceof SaveSnapshotSuccess) {
- onSaveSnapshotSuccess((SaveSnapshotSuccess) message);
- } else if (message instanceof SaveSnapshotFailure) {
- LOG.error("{}: SaveSnapshotFailure received for saving snapshot of shards", persistenceId(),
- ((SaveSnapshotFailure) message).cause());
+ } else if (message instanceof RemoveShardReplica msg) {
+ onRemoveShardReplica(msg);
+ } else if (message instanceof WrappedShardResponse msg) {
+ onWrappedShardResponse(msg);
+ } else if (message instanceof GetSnapshot msg) {
+ onGetSnapshot(msg);
+ } else if (message instanceof ServerRemoved msg) {
+ onShardReplicaRemoved(msg);
+ } else if (message instanceof ChangeShardMembersVotingStatus msg) {
+ onChangeShardServersVotingStatus(msg);
+ } else if (message instanceof FlipShardMembersVotingStatus msg) {
+ onFlipShardMembersVotingStatus(msg);
+ } else if (message instanceof SaveSnapshotSuccess msg) {
+ onSaveSnapshotSuccess(msg);
+ } else if (message instanceof SaveSnapshotFailure msg) {
+ LOG.error("{}: SaveSnapshotFailure received for saving snapshot of shards", persistenceId(), msg.cause());
} else if (message instanceof Shutdown) {
onShutDown();
} else if (message instanceof GetLocalShardIds) {
onGetLocalShardIds();
- } else if (message instanceof GetShardRole) {
- onGetShardRole((GetShardRole) message);
- } else if (message instanceof RunnableMessage) {
- ((RunnableMessage)message).run();
- } else if (message instanceof RegisterForShardAvailabilityChanges) {
- onRegisterForShardAvailabilityChanges((RegisterForShardAvailabilityChanges)message);
- } else if (message instanceof DeleteSnapshotsFailure) {
- LOG.warn("{}: Failed to delete prior snapshots", persistenceId(),
- ((DeleteSnapshotsFailure) message).cause());
+ } else if (message instanceof GetShardRole msg) {
+ onGetShardRole(msg);
+ } else if (message instanceof RunnableMessage msg) {
+ msg.run();
+ } else if (message instanceof RegisterForShardAvailabilityChanges msg) {
+ onRegisterForShardAvailabilityChanges(msg);
+ } else if (message instanceof DeleteSnapshotsFailure msg) {
+ LOG.warn("{}: Failed to delete prior snapshots", persistenceId(), msg.cause());
} else if (message instanceof DeleteSnapshotsSuccess) {
LOG.debug("{}: Successfully deleted prior snapshots", persistenceId());
} else if (message instanceof RegisterRoleChangeListenerReply) {
LOG.trace("{}: Received RegisterRoleChangeListenerReply", persistenceId());
- } else if (message instanceof ClusterEvent.MemberEvent) {
- LOG.trace("{}: Received other ClusterEvent.MemberEvent: {}", persistenceId(), message);
+ } else if (message instanceof ClusterEvent.MemberEvent msg) {
+ LOG.trace("{}: Received other ClusterEvent.MemberEvent: {}", persistenceId(), msg);
} else {
unknownMessage(message);
}
getSender().tell(new GetShardRoleReply(shardInformation.getRole()), ActorRef.noSender());
}
- private void onInitConfigListener() {
- LOG.debug("{}: Initializing config listener on {}", persistenceId(), cluster.getCurrentMemberName());
-
- final org.opendaylight.mdsal.common.api.LogicalDatastoreType datastoreType =
- org.opendaylight.mdsal.common.api.LogicalDatastoreType
- .valueOf(datastoreContextFactory.getBaseDatastoreContext().getLogicalStoreType().name());
-
- if (configUpdateHandler != null) {
- configUpdateHandler.close();
- }
-
- configUpdateHandler = new PrefixedShardConfigUpdateHandler(self(), cluster.getCurrentMemberName());
- configUpdateHandler.initListener(dataStore, datastoreType);
- }
-
- private void onShutDown() {
+ void onShutDown() {
List<Future<Boolean>> stopFutures = new ArrayList<>(localShards.size());
for (ShardInformation info : localShards.values()) {
if (info.getActor() != null) {
}
}
- @SuppressFBWarnings(value = "UPM_UNCALLED_PRIVATE_METHOD",
- justification = "https://github.com/spotbugs/spotbugs/issues/811")
- private void removePrefixShardReplica(final RemovePrefixShardReplica contextMessage, final String shardName,
- final String primaryPath, final ActorRef sender) {
- if (isShardReplicaOperationInProgress(shardName, sender)) {
- return;
- }
-
- shardReplicaOperationsInProgress.add(shardName);
-
- final ShardIdentifier shardId = getShardIdentifier(contextMessage.getMemberName(), shardName);
-
- final DatastoreContext datastoreContext = newShardDatastoreContextBuilder(shardName).build();
-
- //inform ShardLeader to remove this shard as a replica by sending an RemoveServer message
- LOG.debug("{}: Sending RemoveServer message to peer {} for shard {}", persistenceId(),
- primaryPath, shardId);
-
- Timeout removeServerTimeout = new Timeout(datastoreContext.getShardLeaderElectionTimeout().duration());
- Future<Object> futureObj = ask(getContext().actorSelection(primaryPath),
- new RemoveServer(shardId.toString()), removeServerTimeout);
-
- futureObj.onComplete(new OnComplete<Object>() {
- @Override
- public void onComplete(final Throwable failure, final Object response) {
- if (failure != null) {
- shardReplicaOperationsInProgress.remove(shardName);
-
- LOG.debug("{}: RemoveServer request to leader {} for shard {} failed", persistenceId(), primaryPath,
- shardName, failure);
-
- // FAILURE
- sender.tell(new Status.Failure(new RuntimeException(
- String.format("RemoveServer request to leader %s for shard %s failed", primaryPath, shardName),
- failure)), self());
- } else {
- // SUCCESS
- self().tell(new WrappedShardResponse(shardId, response, primaryPath), sender);
- }
- }
- }, new Dispatchers(context().system().dispatchers()).getDispatcher(Dispatchers.DispatcherType.Client));
- }
-
- @SuppressFBWarnings(value = "UPM_UNCALLED_PRIVATE_METHOD",
- justification = "https://github.com/spotbugs/spotbugs/issues/811")
private void removeShardReplica(final RemoveShardReplica contextMessage, final String shardName,
final String primaryPath, final ActorRef sender) {
if (isShardReplicaOperationInProgress(shardName, sender)) {
primaryPath, shardId);
Timeout removeServerTimeout = new Timeout(datastoreContext.getShardLeaderElectionTimeout().duration());
- Future<Object> futureObj = ask(getContext().actorSelection(primaryPath),
+ Future<Object> futureObj = Patterns.ask(getContext().actorSelection(primaryPath),
new RemoveServer(shardId.toString()), removeServerTimeout);
- futureObj.onComplete(new OnComplete<Object>() {
+ futureObj.onComplete(new OnComplete<>() {
@Override
public void onComplete(final Throwable failure, final Object response) {
if (failure != null) {
final Future<Boolean> stopFuture = Patterns.gracefulStop(shardActor,
FiniteDuration.apply(timeoutInMS, TimeUnit.MILLISECONDS), Shutdown.INSTANCE);
- final CompositeOnComplete<Boolean> onComplete = new CompositeOnComplete<Boolean>() {
+ final CompositeOnComplete<Boolean> onComplete = new CompositeOnComplete<>() {
@Override
public void onComplete(final Throwable failure, final Boolean result) {
if (failure == null) {
persistShardList();
}
- private void onGetSnapshot() {
+ private void onGetSnapshot(final GetSnapshot getSnapshot) {
LOG.debug("{}: onGetSnapshot", persistenceId());
List<String> notInitialized = null;
datastoreContextFactory.getBaseDatastoreContext().getShardInitializationTimeout().duration()));
for (ShardInformation shardInfo: localShards.values()) {
- shardInfo.getActor().tell(GetSnapshot.INSTANCE, replyActor);
+ shardInfo.getActor().tell(getSnapshot, replyActor);
}
}
}
}
- private void onPrefixShardCreated(final PrefixShardCreated message) {
- LOG.debug("{}: onPrefixShardCreated: {}", persistenceId(), message);
-
- final PrefixShardConfiguration config = message.getConfiguration();
- final ShardIdentifier shardId = getShardIdentifier(cluster.getCurrentMemberName(),
- ClusterUtils.getCleanShardName(config.getPrefix().getRootIdentifier()));
- final String shardName = shardId.getShardName();
-
- if (isPreviousShardActorStopInProgress(shardName, message)) {
- return;
- }
-
- if (localShards.containsKey(shardName)) {
- LOG.debug("{}: Received create for an already existing shard {}", persistenceId(), shardName);
- final PrefixShardConfiguration existing =
- configuration.getAllPrefixShardConfigurations().get(config.getPrefix());
-
- if (existing != null && existing.equals(config)) {
- // we don't have to do nothing here
- return;
- }
- }
-
- doCreatePrefixShard(config, shardId, shardName);
- }
-
private boolean isPreviousShardActorStopInProgress(final String shardName, final Object messageToDefer) {
final CompositeOnComplete<Boolean> stopOnComplete = shardActorsStopping.get(shardName);
if (stopOnComplete == null) {
return true;
}
- private void doCreatePrefixShard(final PrefixShardConfiguration config, final ShardIdentifier shardId,
- final String shardName) {
- configuration.addPrefixShardConfiguration(config);
-
- final Builder builder = newShardDatastoreContextBuilder(shardName);
- builder.logicalStoreType(config.getPrefix().getDatastoreType())
- .storeRoot(config.getPrefix().getRootIdentifier());
- DatastoreContext shardDatastoreContext = builder.build();
-
- final Map<String, String> peerAddresses = getPeerAddresses(shardName);
- final boolean isActiveMember = true;
-
- LOG.debug("{} doCreatePrefixShard: shardId: {}, memberNames: {}, peerAddresses: {}, isActiveMember: {}",
- persistenceId(), shardId, config.getShardMemberNames(), peerAddresses, isActiveMember);
-
- final ShardInformation info = new ShardInformation(shardName, shardId, peerAddresses,
- shardDatastoreContext, Shard.builder(), peerAddressResolver);
- info.setActiveMember(isActiveMember);
- localShards.put(info.getShardName(), info);
-
- if (schemaContext != null) {
- info.setSchemaContext(schemaContext);
- info.setActor(newShardActor(info));
- }
- }
-
- private void onPrefixShardRemoved(final PrefixShardRemoved message) {
- LOG.debug("{}: onPrefixShardRemoved : {}", persistenceId(), message);
-
- final DOMDataTreeIdentifier prefix = message.getPrefix();
- final ShardIdentifier shardId = getShardIdentifier(cluster.getCurrentMemberName(),
- ClusterUtils.getCleanShardName(prefix.getRootIdentifier()));
-
- configuration.removePrefixShardConfiguration(prefix);
- removeShard(shardId);
- }
-
private void doCreateShard(final CreateShard createShard) {
final ModuleShardConfiguration moduleShardConfig = createShard.getModuleShardConfig();
final String shardName = moduleShardConfig.getShardName();
// the shard with no peers and with elections disabled so it stays as follower. A
// subsequent AddServer request will be needed to make it an active member.
isActiveMember = false;
- peerAddresses = Collections.emptyMap();
+ peerAddresses = Map.of();
shardDatastoreContext = DatastoreContext.newBuilderFrom(shardDatastoreContext)
.customRaftPolicyImplementation(DisableElectionsRaftPolicy.class.getName()).build();
}
info.setActiveMember(isActiveMember);
localShards.put(info.getShardName(), info);
- if (schemaContext != null) {
- info.setSchemaContext(schemaContext);
+ if (modelContext != null) {
+ info.setSchemaContext(modelContext);
info.setActor(newShardActor(info));
}
}
private void checkReady() {
if (isReadyWithLeaderId()) {
- LOG.info("{}: All Shards are ready - data store {} is ready, available count is {}",
- persistenceId(), type, waitTillReadyCountdownLatch.getCount());
-
- waitTillReadyCountdownLatch.countDown();
+ LOG.info("{}: All Shards are ready - data store {} is ready", persistenceId(), type);
+ readinessFuture.set(Empty.value());
}
}
ShardInformation shardInformation = findShardInformation(leaderStateChanged.getMemberId());
if (shardInformation != null) {
- shardInformation.setLocalDataTree(leaderStateChanged.getLocalShardDataTree());
+ shardInformation.setLocalDataTree(leaderStateChanged.localShardDataTree());
shardInformation.setLeaderVersion(leaderStateChanged.getLeaderPayloadVersion());
if (shardInformation.setLeaderId(leaderStateChanged.getLeaderId())) {
primaryShardInfoCache.remove(shardInformation.getShardName());
return true;
}
- private void onActorInitialized(final Object message) {
- final ActorRef sender = getSender();
-
- if (sender == null) {
- // why is a non-actor sending this message? Just ignore.
- return;
- }
+ private void onActorInitialized(final ActorInitialized message) {
+ final var sender = message.actorRef();
String actorName = sender.path().name();
//find shard name from actor name; actor name is stringified shardId
protected void handleRecover(final Object message) throws Exception {
if (message instanceof RecoveryCompleted) {
onRecoveryCompleted();
- } else if (message instanceof SnapshotOffer) {
- applyShardManagerSnapshot((ShardManagerSnapshot)((SnapshotOffer) message).snapshot());
+ } else if (message instanceof SnapshotOffer msg) {
+ applyShardManagerSnapshot((ShardManagerSnapshot) msg.snapshot());
}
}
message.member().address());
peerAddressResolver.removePeerAddress(memberName);
-
- for (ShardInformation info : localShards.values()) {
- info.peerDown(memberName, getShardIdentifier(memberName, info.getShardName()).toString(), getSelf());
- }
}
private void memberExited(final ClusterEvent.MemberExited message) {
message.member().address());
peerAddressResolver.removePeerAddress(memberName);
-
- for (ShardInformation info : localShards.values()) {
- info.peerDown(memberName, getShardIdentifier(memberName, info.getShardName()).toString(), getSelf());
- }
}
private void memberUp(final ClusterEvent.MemberUp message) {
String shardName = info.getShardName();
String peerId = getShardIdentifier(memberName, shardName).toString();
info.updatePeerAddress(peerId, peerAddressResolver.getShardActorAddress(shardName, memberName), getSelf());
-
- info.peerUp(memberName, peerId, getSelf());
}
}
notifyShardAvailabilityCallbacks(info);
}
-
- info.peerDown(memberName, getShardIdentifier(memberName, info.getShardName()).toString(), getSelf());
}
}
LOG.debug("Marking Leader {} as available.", leaderId);
info.setLeaderAvailable(true);
}
-
- info.peerUp(memberName, getShardIdentifier(memberName, info.getShardName()).toString(), getSelf());
}
}
*
* @param message the message to send
*/
- private void updateSchemaContext(final Object message) {
- schemaContext = ((UpdateSchemaContext) message).getSchemaContext();
+ private void updateSchemaContext(final UpdateSchemaContext message) {
+ modelContext = message.modelContext();
- LOG.debug("Got updated SchemaContext: # of modules {}", schemaContext.getModules().size());
+ LOG.debug("Got updated SchemaContext: # of modules {}", modelContext.getModules().size());
for (ShardInformation info : localShards.values()) {
- info.setSchemaContext(schemaContext);
+ info.setSchemaContext(modelContext);
if (info.getActor() == null) {
LOG.debug("Creating Shard {}", info.getShardId());
String peerId = getShardIdentifier(memberName, shardName).toString() ;
String peerAddress = peerAddressResolver.getShardActorAddress(shardName, memberName);
info.updatePeerAddress(peerId, peerAddress, getSelf());
- info.peerUp(memberName, peerId, getSelf());
LOG.debug("{}: updated peer {} on member {} with address {} on shard {} whose actor address is {}",
persistenceId(), peerId, memberName, peerAddress, info.getShardId(), info.getActor());
}
sendResponse(info, message.isWaitUntilReady(), true, () -> {
String primaryPath = info.getSerializedLeaderActor();
Object found = canReturnLocalShardState && info.isLeader()
- ? new LocalPrimaryShardFound(primaryPath, info.getLocalShardDataTree().get()) :
+ ? new LocalPrimaryShardFound(primaryPath, info.getLocalShardDataTree().orElseThrow()) :
new RemotePrimaryShardFound(primaryPath, info.getLeaderVersion());
LOG.debug("{}: Found primary for {}: {}", persistenceId(), shardName, found);
Timeout findPrimaryTimeout = new Timeout(datastoreContextFactory.getBaseDatastoreContext()
.getShardInitializationTimeout().duration().$times(2));
- Future<Object> futureObj = ask(getSelf(), new FindPrimary(shardName, true), findPrimaryTimeout);
- futureObj.onComplete(new OnComplete<Object>() {
+ Future<Object> futureObj = Patterns.ask(getSelf(), new FindPrimary(shardName, true), findPrimaryTimeout);
+ futureObj.onComplete(new OnComplete<>() {
@Override
public void onComplete(final Throwable failure, final Object response) {
if (failure != null) {
handler.onFailure(failure);
+ } else if (response instanceof RemotePrimaryShardFound msg) {
+ handler.onRemotePrimaryShardFound(msg);
+ } else if (response instanceof LocalPrimaryShardFound msg) {
+ handler.onLocalPrimaryFound(msg);
} else {
- if (response instanceof RemotePrimaryShardFound) {
- handler.onRemotePrimaryShardFound((RemotePrimaryShardFound) response);
- } else if (response instanceof LocalPrimaryShardFound) {
- handler.onLocalPrimaryFound((LocalPrimaryShardFound) response);
- } else {
- handler.onUnknownResponse(response);
- }
+ handler.onUnknownResponse(response);
}
}
}, new Dispatchers(context().system().dispatchers()).getDispatcher(Dispatchers.DispatcherType.Client));
* Create shards that are local to the member on which the ShardManager runs.
*/
private void createLocalShards() {
- MemberName memberName = this.cluster.getCurrentMemberName();
- Collection<String> memberShardNames = this.configuration.getMemberShardNames(memberName);
+ MemberName memberName = cluster.getCurrentMemberName();
+ Collection<String> memberShardNames = configuration.getMemberShardNames(memberName);
Map<String, DatastoreSnapshot.ShardSnapshot> shardSnapshots = new HashMap<>();
if (restoreFromSnapshot != null) {
private Map<String, String> getPeerAddresses(final String shardName, final Collection<MemberName> members) {
Map<String, String> peerAddresses = new HashMap<>();
- MemberName currentMemberName = this.cluster.getCurrentMemberName();
+ MemberName currentMemberName = cluster.getCurrentMemberName();
for (MemberName memberName : members) {
if (!currentMemberName.equals(memberName)) {
return false;
}
- private void onAddPrefixShardReplica(final AddPrefixShardReplica message) {
- LOG.debug("{}: onAddPrefixShardReplica: {}", persistenceId(), message);
-
- final ShardIdentifier shardId = getShardIdentifier(cluster.getCurrentMemberName(),
- ClusterUtils.getCleanShardName(message.getShardPrefix()));
- final String shardName = shardId.getShardName();
-
- // Create the localShard
- if (schemaContext == null) {
- LOG.debug("{}: No SchemaContext is available in order to create a local shard instance for {}",
- persistenceId(), shardName);
- getSender().tell(new Status.Failure(new IllegalStateException(
- "No SchemaContext is available in order to create a local shard instance for " + shardName)),
- getSelf());
- return;
- }
-
- findPrimary(shardName, new AutoFindPrimaryFailureResponseHandler(getSender(), shardName, persistenceId(),
- getSelf()) {
- @Override
- public void onRemotePrimaryShardFound(final RemotePrimaryShardFound response) {
- final RunnableMessage runnable = (RunnableMessage) () -> addPrefixShard(getShardName(),
- message.getShardPrefix(), response, getSender());
- if (!isPreviousShardActorStopInProgress(getShardName(), runnable)) {
- getSelf().tell(runnable, getTargetActor());
- }
- }
-
- @Override
- public void onLocalPrimaryFound(final LocalPrimaryShardFound message) {
- sendLocalReplicaAlreadyExistsReply(getShardName(), getTargetActor());
- }
- });
- }
-
private void onAddShardReplica(final AddShardReplica shardReplicaMsg) {
final String shardName = shardReplicaMsg.getShardName();
LOG.debug("{}: onAddShardReplica: {}", persistenceId(), shardReplicaMsg);
// verify the shard with the specified name is present in the cluster configuration
- if (!this.configuration.isShardConfigured(shardName)) {
+ if (!configuration.isShardConfigured(shardName)) {
LOG.debug("{}: No module configuration exists for shard {}", persistenceId(), shardName);
getSender().tell(new Status.Failure(new IllegalArgumentException(
"No module configuration exists for shard " + shardName)), getSelf());
}
// Create the localShard
- if (schemaContext == null) {
+ if (modelContext == null) {
LOG.debug("{}: No SchemaContext is available in order to create a local shard instance for {}",
persistenceId(), shardName);
getSender().tell(new Status.Failure(new IllegalStateException(
});
}
- @SuppressFBWarnings(value = "UPM_UNCALLED_PRIVATE_METHOD",
- justification = "https://github.com/spotbugs/spotbugs/issues/811")
private void sendLocalReplicaAlreadyExistsReply(final String shardName, final ActorRef sender) {
LOG.debug("{}: Local shard {} already exists", persistenceId(), shardName);
sender.tell(new Status.Failure(new AlreadyExistsException(
String.format("Local shard %s already exists", shardName))), getSelf());
}
- @SuppressFBWarnings(value = "UPM_UNCALLED_PRIVATE_METHOD",
- justification = "https://github.com/spotbugs/spotbugs/issues/811")
- private void addPrefixShard(final String shardName, final YangInstanceIdentifier shardPrefix,
- final RemotePrimaryShardFound response, final ActorRef sender) {
- if (isShardReplicaOperationInProgress(shardName, sender)) {
- return;
- }
-
- shardReplicaOperationsInProgress.add(shardName);
-
- final ShardInformation shardInfo;
- final boolean removeShardOnFailure;
- ShardInformation existingShardInfo = localShards.get(shardName);
- if (existingShardInfo == null) {
- removeShardOnFailure = true;
- ShardIdentifier shardId = getShardIdentifier(cluster.getCurrentMemberName(), shardName);
-
- final Builder builder = newShardDatastoreContextBuilder(shardName);
- builder.storeRoot(shardPrefix).customRaftPolicyImplementation(DisableElectionsRaftPolicy.class.getName());
-
- DatastoreContext datastoreContext = builder.build();
-
- shardInfo = new ShardInformation(shardName, shardId, getPeerAddresses(shardName), datastoreContext,
- Shard.builder(), peerAddressResolver);
- shardInfo.setActiveMember(false);
- shardInfo.setSchemaContext(schemaContext);
- localShards.put(shardName, shardInfo);
- shardInfo.setActor(newShardActor(shardInfo));
- } else {
- removeShardOnFailure = false;
- shardInfo = existingShardInfo;
- }
-
- execAddShard(shardName, shardInfo, response, removeShardOnFailure, sender);
- }
-
- @SuppressFBWarnings(value = "UPM_UNCALLED_PRIVATE_METHOD",
- justification = "https://github.com/spotbugs/spotbugs/issues/811")
private void addShard(final String shardName, final RemotePrimaryShardFound response, final ActorRef sender) {
if (isShardReplicaOperationInProgress(shardName, sender)) {
return;
shardInfo = new ShardInformation(shardName, shardId, getPeerAddresses(shardName), datastoreContext,
Shard.builder(), peerAddressResolver);
shardInfo.setActiveMember(false);
- shardInfo.setSchemaContext(schemaContext);
+ shardInfo.setSchemaContext(modelContext);
localShards.put(shardName, shardInfo);
shardInfo.setActor(newShardActor(shardInfo));
} else {
final Timeout addServerTimeout = new Timeout(shardInfo.getDatastoreContext()
.getShardLeaderElectionTimeout().duration());
- final Future<Object> futureObj = ask(getContext().actorSelection(response.getPrimaryPath()),
+ final Future<Object> futureObj = Patterns.ask(getContext().actorSelection(response.getPrimaryPath()),
new AddServer(shardInfo.getShardId().toString(), localShardAddress, true), addServerTimeout);
- futureObj.onComplete(new OnComplete<Object>() {
+ futureObj.onComplete(new OnComplete<>() {
@Override
public void onComplete(final Throwable failure, final Object addServerResponse) {
if (failure != null) {
private static Exception getServerChangeException(final Class<?> serverChange,
final ServerChangeStatus serverChangeStatus, final String leaderPath, final ShardIdentifier shardId) {
- switch (serverChangeStatus) {
- case TIMEOUT:
- return new TimeoutException(String.format(
- "The shard leader %s timed out trying to replicate the initial data to the new shard %s."
- + "Possible causes - there was a problem replicating the data or shard leadership changed "
- + "while replicating the shard data", leaderPath, shardId.getShardName()));
- case NO_LEADER:
- return new NoShardLeaderException(shardId);
- case NOT_SUPPORTED:
- return new UnsupportedOperationException(String.format("%s request is not supported for shard %s",
- serverChange.getSimpleName(), shardId.getShardName()));
- default :
- return new RuntimeException(String.format("%s request to leader %s for shard %s failed with status %s",
- serverChange.getSimpleName(), leaderPath, shardId.getShardName(), serverChangeStatus));
- }
+ return switch (serverChangeStatus) {
+ case TIMEOUT -> new TimeoutException("""
+ The shard leader %s timed out trying to replicate the initial data to the new shard %s. Possible \
+ causes - there was a problem replicating the data or shard leadership changed while replicating the \
+ shard data""".formatted(leaderPath, shardId.getShardName()));
+ case NO_LEADER -> new NoShardLeaderException(shardId);
+ case NOT_SUPPORTED -> new UnsupportedOperationException(
+ "%s request is not supported for shard %s".formatted(
+ serverChange.getSimpleName(), shardId.getShardName()));
+ default -> new RuntimeException("%s request to leader %s for shard %s failed with status %s".formatted(
+ serverChange.getSimpleName(), leaderPath, shardId.getShardName(), serverChangeStatus));
+ };
}
private void onRemoveShardReplica(final RemoveShardReplica shardReplicaMsg) {
});
}
- private void onRemovePrefixShardReplica(final RemovePrefixShardReplica message) {
- LOG.debug("{}: onRemovePrefixShardReplica: {}", persistenceId(), message);
-
- final ShardIdentifier shardId = getShardIdentifier(cluster.getCurrentMemberName(),
- ClusterUtils.getCleanShardName(message.getShardPrefix()));
- final String shardName = shardId.getShardName();
-
- findPrimary(shardName, new AutoFindPrimaryFailureResponseHandler(getSender(),
- shardName, persistenceId(), getSelf()) {
- @Override
- public void onRemotePrimaryShardFound(final RemotePrimaryShardFound response) {
- doRemoveShardReplicaAsync(response.getPrimaryPath());
- }
-
- @Override
- public void onLocalPrimaryFound(final LocalPrimaryShardFound response) {
- doRemoveShardReplicaAsync(response.getPrimaryPath());
- }
-
- private void doRemoveShardReplicaAsync(final String primaryPath) {
- getSelf().tell((RunnableMessage) () -> removePrefixShardReplica(message, getShardName(),
- primaryPath, getSender()), getTargetActor());
- }
- });
- }
-
private void persistShardList() {
List<String> shardList = new ArrayList<>(localShards.keySet());
for (ShardInformation shardInfo : localShards.values()) {
}
}
LOG.debug("{}: persisting the shard list {}", persistenceId(), shardList);
- saveSnapshot(updateShardManagerSnapshot(shardList, configuration.getAllPrefixShardConfigurations()));
+ saveSnapshot(updateShardManagerSnapshot(shardList));
}
- private ShardManagerSnapshot updateShardManagerSnapshot(
- final List<String> shardList,
- final Map<DOMDataTreeIdentifier, PrefixShardConfiguration> allPrefixShardConfigurations) {
- currentSnapshot = new ShardManagerSnapshot(shardList, allPrefixShardConfigurations);
+ private ShardManagerSnapshot updateShardManagerSnapshot(final List<String> shardList) {
+ currentSnapshot = new ShardManagerSnapshot(shardList);
return currentSnapshot;
}
ActorRef sender = getSender();
final String shardName = flipMembersVotingStatus.getShardName();
findLocalShard(shardName, sender, localShardFound -> {
- Future<Object> future = ask(localShardFound.getPath(), GetOnDemandRaftState.INSTANCE,
+ Future<Object> future = Patterns.ask(localShardFound.getPath(), GetOnDemandRaftState.INSTANCE,
Timeout.apply(30, TimeUnit.SECONDS));
- future.onComplete(new OnComplete<Object>() {
+ future.onComplete(new OnComplete<>() {
@Override
public void onComplete(final Throwable failure, final Object response) {
if (failure != null) {
Timeout findLocalTimeout = new Timeout(datastoreContextFactory.getBaseDatastoreContext()
.getShardInitializationTimeout().duration().$times(2));
- Future<Object> futureObj = ask(getSelf(), new FindLocalShard(shardName, true), findLocalTimeout);
- futureObj.onComplete(new OnComplete<Object>() {
+ Future<Object> futureObj = Patterns.ask(getSelf(), new FindLocalShard(shardName, true), findLocalTimeout);
+ futureObj.onComplete(new OnComplete<>() {
@Override
public void onComplete(final Throwable failure, final Object response) {
if (failure != null) {
LOG.debug("{}: Received failure from FindLocalShard for shard {}", persistenceId, shardName,
- failure);
+ failure);
sender.tell(new Status.Failure(new RuntimeException(
- String.format("Failed to find local shard %s", shardName), failure)), self());
+ String.format("Failed to find local shard %s", shardName), failure)), self());
+ } if (response instanceof LocalShardFound msg) {
+ getSelf().tell((RunnableMessage) () -> onLocalShardFound.accept(msg), sender);
+ } else if (response instanceof LocalShardNotFound) {
+ LOG.debug("{}: Local shard {} does not exist", persistenceId, shardName);
+ sender.tell(new Status.Failure(new IllegalArgumentException(
+ String.format("Local shard %s does not exist", shardName))), self());
} else {
- if (response instanceof LocalShardFound) {
- getSelf().tell((RunnableMessage) () -> onLocalShardFound.accept((LocalShardFound) response),
- sender);
- } else if (response instanceof LocalShardNotFound) {
- LOG.debug("{}: Local shard {} does not exist", persistenceId, shardName);
- sender.tell(new Status.Failure(new IllegalArgumentException(
- String.format("Local shard %s does not exist", shardName))), self());
- } else {
- LOG.debug("{}: Failed to find local shard {}: received response: {}", persistenceId, shardName,
- response);
- sender.tell(new Status.Failure(response instanceof Throwable ? (Throwable) response
- : new RuntimeException(
- String.format("Failed to find local shard %s: received response: %s", shardName,
- response))), self());
- }
+ LOG.debug("{}: Failed to find local shard {}: received response: {}", persistenceId, shardName,
+ response);
+ sender.tell(new Status.Failure(response instanceof Throwable throwable ? throwable
+ : new RuntimeException(String.format("Failed to find local shard %s: received response: %s",
+ shardName, response))), self());
}
}
}, new Dispatchers(context().system().dispatchers()).getDispatcher(Dispatchers.DispatcherType.Client));
changeServersVotingStatus, shardActorRef.path());
Timeout timeout = new Timeout(datastoreContext.getShardLeaderElectionTimeout().duration().$times(2));
- Future<Object> futureObj = ask(shardActorRef, changeServersVotingStatus, timeout);
+ Future<Object> futureObj = Patterns.ask(shardActorRef, changeServersVotingStatus, timeout);
- futureObj.onComplete(new OnComplete<Object>() {
+ futureObj.onComplete(new OnComplete<>() {
@Override
public void onComplete(final Throwable failure, final Object response) {
shardReplicaOperationsInProgress.remove(shardName);
Code Review / controller.git / blobdiff