package org.opendaylight.controller.cluster.datastore;
-import akka.actor.ActorRef;
import akka.actor.ActorSystem;
-import akka.dispatch.OnComplete;
-import akka.util.Timeout;
+import com.google.common.annotations.VisibleForTesting;
import com.google.common.base.Preconditions;
+import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.TimeUnit;
import org.opendaylight.controller.cluster.datastore.identifiers.ShardManagerIdentifier;
-import org.opendaylight.controller.cluster.datastore.messages.RegisterChangeListener;
-import org.opendaylight.controller.cluster.datastore.messages.RegisterChangeListenerReply;
+import org.opendaylight.controller.cluster.datastore.jmx.mbeans.DatastoreConfigurationMXBeanImpl;
import org.opendaylight.controller.cluster.datastore.shardstrategy.ShardStrategyFactory;
import org.opendaylight.controller.cluster.datastore.utils.ActorContext;
+import org.opendaylight.controller.cluster.datastore.utils.Dispatchers;
import org.opendaylight.controller.md.sal.common.api.data.AsyncDataBroker;
import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeListener;
import org.opendaylight.controller.sal.core.spi.data.DOMStore;
import org.opendaylight.yangtools.yang.model.api.SchemaContextListener;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
-import scala.concurrent.Future;
/**
*
*/
-public class DistributedDataStore implements DOMStore, SchemaContextListener, AutoCloseable {
+public class DistributedDataStore implements DOMStore, SchemaContextListener,
+ DatastoreContextConfigAdminOverlay.Listener, AutoCloseable {
private static final Logger LOG = LoggerFactory.getLogger(DistributedDataStore.class);
- public static final int REGISTER_DATA_CHANGE_LISTENER_TIMEOUT_FACTOR = 24; // 24 times the usual operation timeout
+ private static final String UNKNOWN_TYPE = "unknown";
+
+ private static final long READY_WAIT_FACTOR = 3;
private final ActorContext actorContext;
+ private final long waitTillReadyTimeInMillis;
+
+
+ private AutoCloseable closeable;
+
+ private DatastoreConfigurationMXBeanImpl datastoreConfigMXBean;
- public DistributedDataStore(ActorSystem actorSystem, String type, ClusterWrapper cluster,
+ private CountDownLatch waitTillReadyCountDownLatch = new CountDownLatch(1);
+
+ private final String type;
+
+ public DistributedDataStore(ActorSystem actorSystem, ClusterWrapper cluster,
Configuration configuration, DatastoreContext datastoreContext) {
Preconditions.checkNotNull(actorSystem, "actorSystem should not be null");
- Preconditions.checkNotNull(type, "type should not be null");
Preconditions.checkNotNull(cluster, "cluster should not be null");
Preconditions.checkNotNull(configuration, "configuration should not be null");
Preconditions.checkNotNull(datastoreContext, "datastoreContext should not be null");
+ this.type = datastoreContext.getDataStoreType();
+
String shardManagerId = ShardManagerIdentifier.builder().type(type).build().toString();
LOG.info("Creating ShardManager : {}", shardManagerId);
+ String shardDispatcher =
+ new Dispatchers(actorSystem.dispatchers()).getDispatcherPath(Dispatchers.DispatcherType.Shard);
+
actorContext = new ActorContext(actorSystem, actorSystem.actorOf(
- ShardManager.props(type, cluster, configuration, datastoreContext)
- .withMailbox(ActorContext.MAILBOX), shardManagerId ), cluster, configuration);
+ ShardManager.props(cluster, configuration, datastoreContext, waitTillReadyCountDownLatch)
+ .withDispatcher(shardDispatcher).withMailbox(ActorContext.MAILBOX), shardManagerId ),
+ cluster, configuration, datastoreContext);
- actorContext.setOperationTimeout(datastoreContext.getOperationTimeoutInSeconds());
+ this.waitTillReadyTimeInMillis =
+ actorContext.getDatastoreContext().getShardLeaderElectionTimeout().duration().toMillis() * READY_WAIT_FACTOR;
+
+
+ datastoreConfigMXBean = new DatastoreConfigurationMXBeanImpl(datastoreContext.getDataStoreMXBeanType());
+ datastoreConfigMXBean.setContext(datastoreContext);
+ datastoreConfigMXBean.registerMBean();
}
public DistributedDataStore(ActorContext actorContext) {
this.actorContext = Preconditions.checkNotNull(actorContext, "actorContext should not be null");
+ this.type = UNKNOWN_TYPE;
+ this.waitTillReadyTimeInMillis =
+ actorContext.getDatastoreContext().getShardLeaderElectionTimeout().duration().toMillis() * READY_WAIT_FACTOR;
+
+ }
+
+ public void setCloseable(AutoCloseable closeable) {
+ this.closeable = closeable;
}
@SuppressWarnings("unchecked")
LOG.debug("Registering listener: {} for path: {} scope: {}", listener, path, scope);
- ActorRef dataChangeListenerActor = actorContext.getActorSystem().actorOf(
- DataChangeListener.props(listener ));
-
String shardName = ShardStrategyFactory.getStrategy(path).findShard(path);
- Future future = actorContext.executeLocalShardOperationAsync(shardName,
- new RegisterChangeListener(path, dataChangeListenerActor.path(), scope),
- new Timeout(actorContext.getOperationDuration().$times(
- REGISTER_DATA_CHANGE_LISTENER_TIMEOUT_FACTOR)));
-
- if (future != null) {
- final DataChangeListenerRegistrationProxy listenerRegistrationProxy =
- new DataChangeListenerRegistrationProxy(listener, dataChangeListenerActor);
-
- future.onComplete(new OnComplete(){
-
- @Override public void onComplete(Throwable failure, Object result)
- throws Throwable {
- if(failure != null){
- LOG.error("Failed to register listener at path " + path.toString(), failure);
- return;
- }
- RegisterChangeListenerReply reply = (RegisterChangeListenerReply) result;
- listenerRegistrationProxy.setListenerRegistrationActor(actorContext
- .actorSelection(reply.getListenerRegistrationPath()));
- }
- }, actorContext.getActorSystem().dispatcher());
- return listenerRegistrationProxy;
- }
+ final DataChangeListenerRegistrationProxy listenerRegistrationProxy =
+ new DataChangeListenerRegistrationProxy(shardName, actorContext, listener);
+ listenerRegistrationProxy.init(path, scope);
- LOG.debug(
- "No local shard for shardName {} was found so returning a noop registration",
- shardName);
-
- return new NoOpDataChangeListenerRegistration(listener);
+ return listenerRegistrationProxy;
}
@Override
@Override
public DOMStoreWriteTransaction newWriteOnlyTransaction() {
+ actorContext.acquireTxCreationPermit();
return new TransactionProxy(actorContext, TransactionProxy.TransactionType.WRITE_ONLY);
}
@Override
public DOMStoreReadWriteTransaction newReadWriteTransaction() {
+ actorContext.acquireTxCreationPermit();
return new TransactionProxy(actorContext, TransactionProxy.TransactionType.READ_WRITE);
}
}
@Override
- public void close() throws Exception {
+ public void onDatastoreContextUpdated(DatastoreContext context) {
+ LOG.info("DatastoreContext updated for data store {}", actorContext.getDataStoreType());
+
+ actorContext.setDatastoreContext(context);
+ datastoreConfigMXBean.setContext(context);
+ }
+
+ @Override
+ public void close() {
+ datastoreConfigMXBean.unregisterMBean();
+
+ if(closeable != null) {
+ try {
+ closeable.close();
+ } catch (Exception e) {
+ LOG.debug("Error closing insance", e);
+ }
+ }
+
actorContext.shutdown();
}
+
+ @VisibleForTesting
+ ActorContext getActorContext() {
+ return actorContext;
+ }
+
+ public void waitTillReady(){
+ LOG.info("Beginning to wait for data store to become ready : {}", type);
+
+ try {
+ if (waitTillReadyCountDownLatch.await(waitTillReadyTimeInMillis, TimeUnit.MILLISECONDS)) {
+ LOG.debug("Data store {} is now ready", type);
+ } else {
+ LOG.error("Shared leaders failed to settle in {} seconds, giving up", TimeUnit.MILLISECONDS.toSeconds(waitTillReadyTimeInMillis));
+ }
+ } catch (InterruptedException e) {
+ LOG.error("Interrupted while waiting for shards to settle", e);
+ }
+ }
+
+ @VisibleForTesting
+ public CountDownLatch getWaitTillReadyCountDownLatch() {
+ return waitTillReadyCountDownLatch;
+ }
}