import akka.actor.Props;
import akka.actor.SupervisorStrategy;
import akka.cluster.ClusterEvent;
+import akka.event.Logging;
+import akka.event.LoggingAdapter;
import akka.japi.Creator;
import akka.japi.Function;
-
+import akka.japi.Procedure;
+import akka.persistence.RecoveryCompleted;
+import akka.persistence.RecoveryFailure;
+import com.google.common.annotations.VisibleForTesting;
import com.google.common.base.Preconditions;
-
+import org.opendaylight.controller.cluster.common.actor.AbstractUntypedPersistentActorWithMetering;
import org.opendaylight.controller.cluster.datastore.identifiers.ShardIdentifier;
import org.opendaylight.controller.cluster.datastore.identifiers.ShardManagerIdentifier;
import org.opendaylight.controller.cluster.datastore.jmx.mbeans.shardmanager.ShardManagerInfo;
import org.opendaylight.controller.cluster.datastore.jmx.mbeans.shardmanager.ShardManagerInfoMBean;
+import org.opendaylight.controller.cluster.datastore.messages.ActorInitialized;
+import org.opendaylight.controller.cluster.datastore.messages.ActorNotInitialized;
import org.opendaylight.controller.cluster.datastore.messages.FindLocalShard;
import org.opendaylight.controller.cluster.datastore.messages.FindPrimary;
import org.opendaylight.controller.cluster.datastore.messages.LocalShardFound;
import org.opendaylight.controller.cluster.datastore.messages.PrimaryFound;
import org.opendaylight.controller.cluster.datastore.messages.PrimaryNotFound;
import org.opendaylight.controller.cluster.datastore.messages.UpdateSchemaContext;
-
-import org.opendaylight.controller.cluster.datastore.utils.ActorContext;
+import org.opendaylight.yangtools.yang.model.api.ModuleIdentifier;
+import org.opendaylight.yangtools.yang.model.api.SchemaContext;
import scala.concurrent.duration.Duration;
+import java.io.Serializable;
import java.util.ArrayList;
+import java.util.Collection;
import java.util.HashMap;
+import java.util.HashSet;
import java.util.List;
import java.util.Map;
+import java.util.Set;
/**
* The ShardManager has the following jobs,
* <li> Monitor the cluster members and store their addresses
* <ul>
*/
-public class ShardManager extends AbstractUntypedActor {
+public class ShardManager extends AbstractUntypedPersistentActorWithMetering {
+
+ protected final LoggingAdapter LOG =
+ Logging.getLogger(getContext().system(), this);
// Stores a mapping between a member name and the address of the member
// Member names look like "member-1", "member-2" etc and are as specified
private final DatastoreContext datastoreContext;
+ private final Collection<String> knownModules = new HashSet<>(128);
+
/**
* @param type defines the kind of data that goes into shards created by this shard manager. Examples of type would be
* configuration or operational
// Subscribe this actor to cluster member events
cluster.subscribeToMemberEvents(getSelf());
- // Create all the local Shards and make them a child of the ShardManager
- // TODO: This may need to be initiated when we first get the schema context
- createLocalShards();
+ //createLocalShards(null);
}
public static Props props(final String type,
}
@Override
- public void handleReceive(Object message) throws Exception {
+ public void handleCommand(Object message) throws Exception {
if (message.getClass().equals(FindPrimary.SERIALIZABLE_CLASS)) {
findPrimary(
FindPrimary.fromSerializable(message));
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.MemberRemoved) {
}
+ private void onActorInitialized(Object message) {
+ final ActorRef sender = getSender();
+
+ if (sender == null) {
+ return; //why is a non-actor sending this message? Just ignore.
+ }
+
+ String actorName = sender.path().name();
+ //find shard name from actor name; actor name is stringified shardId
+ ShardIdentifier shardId = ShardIdentifier.builder().fromShardIdString(actorName).build();
+
+ if (shardId.getShardName() == null) {
+ return;
+ }
+ markShardAsInitialized(shardId.getShardName());
+ }
+
+ @VisibleForTesting protected void markShardAsInitialized(String shardName) {
+ LOG.debug("Initializing shard [{}]", shardName);
+ ShardInformation shardInformation = localShards.get(shardName);
+ if (shardInformation != null) {
+ shardInformation.setShardInitialized(true);
+ }
+ }
+
+ @Override protected void handleRecover(Object message) throws Exception {
+
+ if(message instanceof SchemaContextModules){
+ SchemaContextModules msg = (SchemaContextModules) message;
+ knownModules.clear();
+ knownModules.addAll(msg.getModules());
+ } else if(message instanceof RecoveryFailure){
+ RecoveryFailure failure = (RecoveryFailure) message;
+ LOG.error(failure.cause(), "Recovery failed");
+ } else if(message instanceof RecoveryCompleted){
+ LOG.info("Recovery complete : {}", persistenceId());
+
+ // Delete all the messages from the akka journal except the last one
+ deleteMessages(lastSequenceNr() - 1);
+ }
+ }
+
private void findLocalShard(FindLocalShard message) {
- ShardInformation shardInformation =
- localShards.get(message.getShardName());
+ ShardInformation shardInformation = localShards.get(message.getShardName());
+
+ if(shardInformation == null){
+ getSender().tell(new LocalShardNotFound(message.getShardName()), getSelf());
+ return;
+ }
- if(shardInformation != null){
- getSender().tell(new LocalShardFound(shardInformation.getActor()), getSelf());
+ sendResponse(shardInformation, new LocalShardFound(shardInformation.getActor()));
+ }
+
+ private void sendResponse(ShardInformation shardInformation, Object message) {
+ if (!shardInformation.isShardInitialized()) {
+ getSender().tell(new ActorNotInitialized(), getSelf());
return;
}
- getSender().tell(new LocalShardNotFound(message.getShardName()),
- getSelf());
+ getSender().tell(message, getSelf());
}
private void memberRemoved(ClusterEvent.MemberRemoved message) {
private void memberUp(ClusterEvent.MemberUp message) {
String memberName = message.member().roles().head();
- memberNameToAddress.put(memberName , message.member().address());
+ memberNameToAddress.put(memberName, message.member().address());
for(ShardInformation info : localShards.values()){
String shardName = info.getShardName();
*
* @param message
*/
- private void updateSchemaContext(Object message) {
- for(ShardInformation info : localShards.values()){
- info.getActor().tell(message,getSelf());
+ private void updateSchemaContext(final Object message) {
+ final SchemaContext schemaContext = ((UpdateSchemaContext) message).getSchemaContext();
+
+ Set<ModuleIdentifier> allModuleIdentifiers = schemaContext.getAllModuleIdentifiers();
+ Set<String> newModules = new HashSet<>(128);
+
+ for(ModuleIdentifier moduleIdentifier : allModuleIdentifiers){
+ String s = moduleIdentifier.getNamespace().toString();
+ newModules.add(s);
}
+
+ if(newModules.containsAll(knownModules)) {
+
+ LOG.info("New SchemaContext has a super set of current knownModules - persisting info");
+
+ knownModules.clear();
+ knownModules.addAll(newModules);
+
+ persist(new SchemaContextModules(newModules), new Procedure<SchemaContextModules>() {
+
+ @Override public void apply(SchemaContextModules param) throws Exception {
+ LOG.info("Sending new SchemaContext to Shards");
+ if (localShards.size() == 0) {
+ createLocalShards(schemaContext);
+ } else {
+ for (ShardInformation info : localShards.values()) {
+ info.getActor().tell(message, getSelf());
+ }
+ }
+ }
+
+ });
+ } else {
+ LOG.info("Rejecting schema context update because it is not a super set of previously known modules");
+ }
+
}
private void findPrimary(FindPrimary message) {
+ final ActorRef sender = getSender();
String shardName = message.getShardName();
// First see if the there is a local replica for the shard
ShardInformation info = localShards.get(shardName);
- if(info != null) {
+ if (info != null) {
ActorPath shardPath = info.getActorPath();
- if (shardPath != null) {
- getSender()
- .tell(
- new PrimaryFound(shardPath.toString()).toSerializable(),
- getSelf());
- return;
- }
+ sendResponse(info, new PrimaryFound(shardPath.toString()).toSerializable());
+ return;
}
- List<String> members =
- configuration.getMembersFromShardName(shardName);
+ List<String> members = configuration.getMembersFromShardName(shardName);
if(cluster.getCurrentMemberName() != null) {
members.remove(cluster.getCurrentMemberName());
}
+ /**
+ * FIXME: Instead of sending remote shard actor path back to sender,
+ * forward FindPrimary message to remote shard manager
+ */
// There is no way for us to figure out the primary (for now) so assume
// that one of the remote nodes is a primary
for(String memberName : members) {
* runs
*
*/
- private void createLocalShards() {
+ private void createLocalShards(SchemaContext schemaContext) {
String memberName = this.cluster.getCurrentMemberName();
List<String> memberShardNames =
this.configuration.getMemberShardNames(memberName);
ShardIdentifier shardId = getShardIdentifier(memberName, shardName);
Map<ShardIdentifier, String> peerAddresses = getPeerAddresses(shardName);
ActorRef actor = getContext()
- .actorOf(Shard.props(shardId, peerAddresses, datastoreContext).
- withMailbox(ActorContext.MAILBOX), shardId.toString());
-
+ .actorOf(Shard.props(shardId, peerAddresses, datastoreContext, schemaContext),
+ shardId.toString());
localShardActorNames.add(shardId.toString());
localShards.put(shardName, new ShardInformation(shardName, actor, peerAddresses));
}
- mBean = ShardManagerInfo
- .createShardManagerMBean("shard-manager-" + this.type, localShardActorNames);
-
+ mBean = ShardManagerInfo.createShardManagerMBean("shard-manager-" + this.type,
+ datastoreContext.getDataStoreMXBeanType(), localShardActorNames);
}
/**
}
+ @Override public String persistenceId() {
+ return "shard-manager-" + type;
+ }
+
+ @VisibleForTesting public Collection<String> getKnownModules() {
+ return knownModules;
+ }
+
private class ShardInformation {
private final String shardName;
private final ActorRef actor;
private final ActorPath actorPath;
private final Map<ShardIdentifier, String> peerAddresses;
+ private boolean shardInitialized = false; //flag that determines if the actor is ready for business
private ShardInformation(String shardName, ActorRef actor,
Map<ShardIdentifier, String> peerAddresses) {
peerAddress);
if(peerAddresses.containsKey(peerId)){
peerAddresses.put(peerId, peerAddress);
-
- LOG.debug(
- "Sending PeerAddressResolved for peer {} with address {} to {}",
- peerId, peerAddress, actor.path());
-
+ if(LOG.isDebugEnabled()) {
+ LOG.debug(
+ "Sending PeerAddressResolved for peer {} with address {} to {}",
+ peerId, peerAddress, actor.path());
+ }
actor
.tell(new PeerAddressResolved(peerId, peerAddress),
getSelf());
}
}
+
+ public boolean isShardInitialized() {
+ return shardInitialized;
+ }
+
+ public void setShardInitialized(boolean shardInitialized) {
+ this.shardInitialized = shardInitialized;
+ }
}
private static class ShardManagerCreator implements Creator<ShardManager> {
return new ShardManager(type, cluster, configuration, datastoreContext);
}
}
+
+ static class SchemaContextModules implements Serializable {
+ private final Set<String> modules;
+
+ SchemaContextModules(Set<String> modules){
+ this.modules = modules;
+ }
+
+ public Set<String> getModules() {
+ return modules;
+ }
+ }
}
Code Review / controller.git / blobdiff