import akka.persistence.RecoveryFailure;
import com.google.common.annotations.VisibleForTesting;
import com.google.common.base.Preconditions;
-import org.opendaylight.controller.cluster.common.actor.AbstractUntypedPersistentActor;
+import com.google.common.base.Supplier;
+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.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;
* <li> Monitor the cluster members and store their addresses
* <ul>
*/
-public class ShardManager extends AbstractUntypedPersistentActor {
+public class ShardManager extends AbstractUntypedPersistentActorWithMetering {
protected final LoggingAdapter LOG =
Logging.getLogger(getContext().system(), this);
* @param type defines the kind of data that goes into shards created by this shard manager. Examples of type would be
* configuration or operational
*/
- private ShardManager(String type, ClusterWrapper cluster, Configuration configuration,
+ protected ShardManager(String type, ClusterWrapper cluster, Configuration configuration,
DatastoreContext datastoreContext) {
this.type = Preconditions.checkNotNull(type, "type should not be null");
// Subscribe this actor to cluster member events
cluster.subscribeToMemberEvents(getSelf());
- //createLocalShards(null);
+ createLocalShards();
}
public static Props props(final String type,
@Override
public void handleCommand(Object message) throws Exception {
if (message.getClass().equals(FindPrimary.SERIALIZABLE_CLASS)) {
- findPrimary(
- FindPrimary.fromSerializable(message));
+ findPrimary(FindPrimary.fromSerializable(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.MemberRemoved) {
}
- @Override protected void handleRecover(Object message) throws Exception {
+ 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());
+ }
+
+ private 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();
}
private void findLocalShard(FindLocalShard message) {
- ShardInformation shardInformation =
- localShards.get(message.getShardName());
+ final ShardInformation shardInformation = localShards.get(message.getShardName());
- if(shardInformation != null){
- getSender().tell(new LocalShardFound(shardInformation.getActor()), getSelf());
+ if(shardInformation == null){
+ getSender().tell(new LocalShardNotFound(message.getShardName()), getSelf());
return;
}
- getSender().tell(new LocalShardNotFound(message.getShardName()),
- getSelf());
+ sendResponse(shardInformation, new Supplier<Object>() {
+ @Override
+ public Object get() {
+ return new LocalShardFound(shardInformation.getActor());
+ }
+ });
+ }
+
+ private void sendResponse(ShardInformation shardInformation, Supplier<Object> messageSupplier) {
+ if (shardInformation.getActor() == null || !shardInformation.isShardInitialized()) {
+ getSender().tell(new ActorNotInitialized(), getSelf());
+ return;
+ }
+
+ getSender().tell(messageSupplier.get(), 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();
persist(new SchemaContextModules(newModules), new Procedure<SchemaContextModules>() {
- @Override public void apply(SchemaContextModules param) throws Exception {
+ @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()) {
+ for (ShardInformation info : localShards.values()) {
+ if(info.getActor() == null) {
+ info.setActor(getContext().actorOf(Shard.props(info.getShardId(),
+ info.getPeerAddresses(), datastoreContext, schemaContext),
+ info.getShardId().toString()));
+ } else {
info.getActor().tell(message, getSelf());
}
}
String shardName = message.getShardName();
// First see if the there is a local replica for the shard
- ShardInformation info = localShards.get(shardName);
- if(info != null) {
- ActorPath shardPath = info.getActorPath();
- if (shardPath != null) {
- getSender()
- .tell(
- new PrimaryFound(shardPath.toString()).toSerializable(),
- getSelf());
- return;
- }
+ final ShardInformation info = localShards.get(shardName);
+ if (info != null) {
+ sendResponse(info, new Supplier<Object>() {
+ @Override
+ public Object get() {
+ return new PrimaryFound(info.getActorPath().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(SchemaContext schemaContext) {
+ private void createLocalShards() {
String memberName = this.cluster.getCurrentMemberName();
List<String> memberShardNames =
this.configuration.getMemberShardNames(memberName);
for(String shardName : memberShardNames){
ShardIdentifier shardId = getShardIdentifier(memberName, shardName);
Map<ShardIdentifier, String> peerAddresses = getPeerAddresses(shardName);
- ActorRef actor = getContext()
- .actorOf(Shard.props(shardId, peerAddresses, datastoreContext, schemaContext),
- shardId.toString());
localShardActorNames.add(shardId.toString());
- localShards.put(shardName, new ShardInformation(shardName, actor, peerAddresses));
+ localShards.put(shardName, new ShardInformation(shardName, shardId, peerAddresses));
}
mBean = ShardManagerInfo.createShardManagerMBean("shard-manager-" + this.type,
}
- @Override public String persistenceId() {
+ @Override
+ public String persistenceId() {
return "shard-manager-" + type;
}
- @VisibleForTesting public Collection<String> getKnownModules() {
+ @VisibleForTesting
+ Collection<String> getKnownModules() {
return knownModules;
}
private class ShardInformation {
+ private final ShardIdentifier shardId;
private final String shardName;
- private final ActorRef actor;
- private final ActorPath actorPath;
+ private ActorRef actor;
+ private 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) {
+ private ShardInformation(String shardName, ShardIdentifier shardId,
+ Map<ShardIdentifier, String> peerAddresses) {
this.shardName = shardName;
- this.actor = actor;
- this.actorPath = actor.path();
+ this.shardId = shardId;
this.peerAddresses = peerAddresses;
}
- public String getShardName() {
+ String getShardName() {
return shardName;
}
- public ActorRef getActor(){
+ ActorRef getActor(){
return actor;
}
- public ActorPath getActorPath() {
+ ActorPath getActorPath() {
return actorPath;
}
- public void updatePeerAddress(ShardIdentifier peerId, String peerAddress){
+ void setActor(ActorRef actor) {
+ this.actor = actor;
+ this.actorPath = actor.path();
+ }
+
+ ShardIdentifier getShardId() {
+ return shardId;
+ }
+
+ Map<ShardIdentifier, String> getPeerAddresses() {
+ return peerAddresses;
+ }
+
+ void updatePeerAddress(ShardIdentifier peerId, String peerAddress){
LOG.info("updatePeerAddress for peer {} with address {}", peerId,
peerAddress);
if(peerAddresses.containsKey(peerId)){
peerAddresses.put(peerId, peerAddress);
- if(LOG.isDebugEnabled()) {
- LOG.debug(
- "Sending PeerAddressResolved for peer {} with address {} to {}",
- peerId, peerAddress, actor.path());
- }
- actor
- .tell(new PeerAddressResolved(peerId, peerAddress),
- getSelf());
+ if(actor != null) {
+ if(LOG.isDebugEnabled()) {
+ LOG.debug("Sending PeerAddressResolved for peer {} with address {} to {}",
+ peerId, peerAddress, actor.path());
+ }
+
+ actor.tell(new PeerAddressResolved(peerId, peerAddress), getSelf());
+ }
}
}
+
+ boolean isShardInitialized() {
+ return shardInitialized;
+ }
+
+ void setShardInitialized(boolean shardInitialized) {
+ this.shardInitialized = shardInitialized;
+ }
}
private static class ShardManagerCreator implements Creator<ShardManager> {
}
static class SchemaContextModules implements Serializable {
+ private static final long serialVersionUID = 1L;
+
private final Set<String> modules;
SchemaContextModules(Set<String> modules){