package org.opendaylight.controller.cluster.datastore;
-import akka.actor.ActorRef;
import akka.actor.ActorSystem;
import com.google.common.annotations.VisibleForTesting;
-import com.google.common.base.Preconditions;
-import com.google.common.util.concurrent.Uninterruptibles;
-import java.util.concurrent.CountDownLatch;
-import java.util.concurrent.TimeUnit;
+import org.opendaylight.controller.cluster.access.concepts.ClientIdentifier;
import org.opendaylight.controller.cluster.datastore.config.Configuration;
-import org.opendaylight.controller.cluster.datastore.identifiers.ShardManagerIdentifier;
-import org.opendaylight.controller.cluster.datastore.jmx.mbeans.DatastoreConfigurationMXBeanImpl;
-import org.opendaylight.controller.cluster.datastore.jmx.mbeans.DatastoreInfoMXBeanImpl;
-import org.opendaylight.controller.cluster.datastore.messages.DatastoreSnapshot;
+import org.opendaylight.controller.cluster.datastore.persisted.DatastoreSnapshot;
import org.opendaylight.controller.cluster.datastore.utils.ActorContext;
-import org.opendaylight.controller.cluster.datastore.utils.Dispatchers;
-import org.opendaylight.controller.cluster.datastore.utils.PrimaryShardInfoFutureCache;
-import org.opendaylight.controller.md.sal.common.api.data.AsyncDataBroker;
-import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeListener;
-import org.opendaylight.controller.md.sal.dom.api.DOMDataTreeChangeListener;
-import org.opendaylight.controller.sal.core.spi.data.DOMStore;
import org.opendaylight.controller.sal.core.spi.data.DOMStoreReadTransaction;
import org.opendaylight.controller.sal.core.spi.data.DOMStoreReadWriteTransaction;
import org.opendaylight.controller.sal.core.spi.data.DOMStoreTransactionChain;
-import org.opendaylight.controller.sal.core.spi.data.DOMStoreTreeChangePublisher;
import org.opendaylight.controller.sal.core.spi.data.DOMStoreWriteTransaction;
-import org.opendaylight.yangtools.concepts.ListenerRegistration;
-import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
-import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
-import org.opendaylight.yangtools.yang.model.api.SchemaContext;
-import org.opendaylight.yangtools.yang.model.api.SchemaContextListener;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
/**
- *
+ * Implements a distributed DOMStore using Akka Patterns.ask().
*/
-public class DistributedDataStore implements DOMStore, SchemaContextListener,
- DatastoreContextConfigAdminOverlay.Listener, DOMStoreTreeChangePublisher, AutoCloseable {
-
- private static final Logger LOG = LoggerFactory.getLogger(DistributedDataStore.class);
- 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;
-
- private DatastoreInfoMXBeanImpl datastoreInfoMXBean;
-
- private final CountDownLatch waitTillReadyCountDownLatch = new CountDownLatch(1);
-
- private final String type;
+public class DistributedDataStore extends AbstractDataStore {
private final TransactionContextFactory txContextFactory;
- public DistributedDataStore(ActorSystem actorSystem, ClusterWrapper cluster,
- Configuration configuration, DatastoreContextFactory datastoreContextFactory,
- DatastoreSnapshot restoreFromSnapshot) {
- Preconditions.checkNotNull(actorSystem, "actorSystem should not be null");
- Preconditions.checkNotNull(cluster, "cluster should not be null");
- Preconditions.checkNotNull(configuration, "configuration should not be null");
- Preconditions.checkNotNull(datastoreContextFactory, "datastoreContextFactory should not be null");
-
- this.type = datastoreContextFactory.getBaseDatastoreContext().getDataStoreName();
-
- String shardManagerId = ShardManagerIdentifier.builder().type(type).build().toString();
-
- LOG.info("Creating ShardManager : {}", shardManagerId);
-
- String shardDispatcher =
- new Dispatchers(actorSystem.dispatchers()).getDispatcherPath(Dispatchers.DispatcherType.Shard);
-
- PrimaryShardInfoFutureCache primaryShardInfoCache = new PrimaryShardInfoFutureCache();
-
- ShardManager.Builder builder = ShardManager.builder().cluster(cluster).configuration(configuration).
- datastoreContextFactory(datastoreContextFactory).waitTillReadyCountdownLatch(waitTillReadyCountDownLatch).
- primaryShardInfoCache(primaryShardInfoCache).restoreFromSnapshot(restoreFromSnapshot);
-
- actorContext = new ActorContext(actorSystem, createShardManager(actorSystem, builder, shardDispatcher,
- shardManagerId), cluster, configuration, datastoreContextFactory.getBaseDatastoreContext(), primaryShardInfoCache);
-
- this.waitTillReadyTimeInMillis =
- actorContext.getDatastoreContext().getShardLeaderElectionTimeout().duration().toMillis() * READY_WAIT_FACTOR;
-
- this.txContextFactory = TransactionContextFactory.create(actorContext);
-
- datastoreConfigMXBean = new DatastoreConfigurationMXBeanImpl(
- datastoreContextFactory.getBaseDatastoreContext().getDataStoreMXBeanType());
- datastoreConfigMXBean.setContext(datastoreContextFactory.getBaseDatastoreContext());
- datastoreConfigMXBean.registerMBean();
-
- datastoreInfoMXBean = new DatastoreInfoMXBeanImpl(datastoreContextFactory.getBaseDatastoreContext().
- getDataStoreMXBeanType(), actorContext);
- datastoreInfoMXBean.registerMBean();
+ public DistributedDataStore(final ActorSystem actorSystem, final ClusterWrapper cluster,
+ final Configuration configuration, final DatastoreContextFactory datastoreContextFactory,
+ final DatastoreSnapshot restoreFromSnapshot) {
+ super(actorSystem, cluster, configuration, datastoreContextFactory, restoreFromSnapshot);
+ this.txContextFactory = new TransactionContextFactory(getActorContext(), getIdentifier());
}
@VisibleForTesting
- DistributedDataStore(ActorContext actorContext) {
- this.actorContext = Preconditions.checkNotNull(actorContext, "actorContext should not be null");
- this.txContextFactory = TransactionContextFactory.create(actorContext);
- this.type = UNKNOWN_TYPE;
- this.waitTillReadyTimeInMillis =
- actorContext.getDatastoreContext().getShardLeaderElectionTimeout().duration().toMillis() * READY_WAIT_FACTOR;
- }
-
- public void setCloseable(AutoCloseable closeable) {
- this.closeable = closeable;
- }
-
- @SuppressWarnings("unchecked")
- @Override
- public <L extends AsyncDataChangeListener<YangInstanceIdentifier, NormalizedNode<?, ?>>>
- ListenerRegistration<L> registerChangeListener(
- final YangInstanceIdentifier path, L listener,
- AsyncDataBroker.DataChangeScope scope) {
-
- Preconditions.checkNotNull(path, "path should not be null");
- Preconditions.checkNotNull(listener, "listener should not be null");
-
- LOG.debug("Registering listener: {} for path: {} scope: {}", listener, path, scope);
-
- String shardName = actorContext.getShardStrategyFactory().getStrategy(path).findShard(path);
-
- final DataChangeListenerRegistrationProxy listenerRegistrationProxy =
- new DataChangeListenerRegistrationProxy(shardName, actorContext, listener);
- listenerRegistrationProxy.init(path, scope);
-
- return listenerRegistrationProxy;
+ DistributedDataStore(final ActorContext actorContext, final ClientIdentifier identifier) {
+ super(actorContext, identifier);
+ this.txContextFactory = new TransactionContextFactory(getActorContext(), getIdentifier());
}
- @Override
- public <L extends DOMDataTreeChangeListener> ListenerRegistration<L> registerTreeChangeListener(YangInstanceIdentifier treeId, L listener) {
- Preconditions.checkNotNull(treeId, "treeId should not be null");
- Preconditions.checkNotNull(listener, "listener should not be null");
-
- final String shardName = actorContext.getShardStrategyFactory().getStrategy(treeId).findShard(treeId);
- LOG.debug("Registering tree listener: {} for tree: {} shard: {}", listener, treeId, shardName);
-
- final DataTreeChangeListenerProxy<L> listenerRegistrationProxy =
- new DataTreeChangeListenerProxy<L>(actorContext, listener);
- listenerRegistrationProxy.init(shardName, treeId);
-
- return listenerRegistrationProxy;
- }
@Override
public DOMStoreTransactionChain createTransactionChain() {
@Override
public DOMStoreReadTransaction newReadOnlyTransaction() {
- return new TransactionProxy(txContextFactory, TransactionType.READ_ONLY);
+ return new TransactionProxy(txContextFactory, TransactionType.READ_ONLY);
}
@Override
public DOMStoreWriteTransaction newWriteOnlyTransaction() {
- actorContext.acquireTxCreationPermit();
+ getActorContext().acquireTxCreationPermit();
return new TransactionProxy(txContextFactory, TransactionType.WRITE_ONLY);
}
@Override
public DOMStoreReadWriteTransaction newReadWriteTransaction() {
- actorContext.acquireTxCreationPermit();
+ getActorContext().acquireTxCreationPermit();
return new TransactionProxy(txContextFactory, TransactionType.READ_WRITE);
}
- @Override
- public void onGlobalContextUpdated(SchemaContext schemaContext) {
- actorContext.setSchemaContext(schemaContext);
- }
-
- @Override
- public void onDatastoreContextUpdated(DatastoreContextFactory contextFactory) {
- LOG.info("DatastoreContext updated for data store {}", actorContext.getDataStoreType());
-
- actorContext.setDatastoreContext(contextFactory);
- datastoreConfigMXBean.setContext(contextFactory.getBaseDatastoreContext());
- }
-
@Override
public void close() {
- if (datastoreConfigMXBean != null) {
- datastoreConfigMXBean.unregisterMBean();
- }
- if (datastoreInfoMXBean != null) {
- datastoreInfoMXBean.unregisterMBean();
- }
-
- if (closeable != null) {
- try {
- closeable.close();
- } catch (Exception e) {
- LOG.debug("Error closing instance", e);
- }
- }
-
txContextFactory.close();
- actorContext.shutdown();
- }
-
- public 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);
- }
- }
-
- private ActorRef createShardManager(ActorSystem actorSystem, ShardManager.Builder builder, String shardDispatcher,
- String shardManagerId){
- Exception lastException = null;
-
- for(int i=0;i<100;i++) {
- try {
- return actorSystem.actorOf(builder.props().withDispatcher(shardDispatcher).withMailbox(
- ActorContext.MAILBOX), shardManagerId);
- } catch (Exception e){
- lastException = e;
- Uninterruptibles.sleepUninterruptibly(100, TimeUnit.MILLISECONDS);
- LOG.debug(String.format("Could not create actor %s because of %s - waiting for sometime before retrying (retry count = %d)", shardManagerId, e.getMessage(), i));
- }
- }
-
- throw new IllegalStateException("Failed to create Shard Manager", lastException);
- }
-
- @VisibleForTesting
- public CountDownLatch getWaitTillReadyCountDownLatch() {
- return waitTillReadyCountDownLatch;
+ super.close();
}
}
Code Review / controller.git / blobdiff