X-Git-Url: https://git.opendaylight.org/gerrit/gitweb?p=controller.git;a=blobdiff_plain;f=opendaylight%2Fmd-sal%2Fsal-distributed-datastore%2Fsrc%2Fmain%2Fjava%2Forg%2Fopendaylight%2Fcontroller%2Fcluster%2Fdatastore%2FDistributedDataStore.java;h=18266658d3de421f592a5892b06b7a8baeec07f5;hp=930c5f7257dc6c061f23f54868a55f8da68b4acb;hb=daaef05cbf70e6cbec9af181258faead6d9620a6;hpb=c7636ed2c99ab891dbecb719db53c1a4ce1b54b8 diff --git a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/DistributedDataStore.java b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/DistributedDataStore.java index 930c5f7257..18266658d3 100644 --- a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/DistributedDataStore.java +++ b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/DistributedDataStore.java @@ -8,18 +8,27 @@ 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.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.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.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; @@ -32,33 +41,72 @@ import org.slf4j.LoggerFactory; /** * */ -public class DistributedDataStore implements DOMStore, SchemaContextListener, AutoCloseable { +public class DistributedDataStore implements DOMStore, SchemaContextListener, + DatastoreContextConfigAdminOverlay.Listener, DOMStoreTreeChangePublisher, 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; + + private DatastoreInfoMXBeanImpl datastoreInfoMXBean; - public DistributedDataStore(ActorSystem actorSystem, String type, ClusterWrapper cluster, + private final CountDownLatch waitTillReadyCountDownLatch = new CountDownLatch(1); + + private final String type; + + private final TransactionContextFactory txContextFactory; + + 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); - actorContext = new ActorContext(actorSystem, actorSystem.actorOf( - ShardManager.props(type, cluster, configuration, datastoreContext) - .withMailbox(ActorContext.MAILBOX), shardManagerId ), - cluster, configuration, datastoreContext); + String shardDispatcher = + new Dispatchers(actorSystem.dispatchers()).getDispatcherPath(Dispatchers.DispatcherType.Shard); + + actorContext = new ActorContext(actorSystem, createShardManager(actorSystem, cluster, configuration, + datastoreContext, shardDispatcher, shardManagerId ), cluster, configuration, datastoreContext); + + this.waitTillReadyTimeInMillis = + actorContext.getDatastoreContext().getShardLeaderElectionTimeout().duration().toMillis() * READY_WAIT_FACTOR; + + this.txContextFactory = TransactionContextFactory.create(actorContext); + + datastoreConfigMXBean = new DatastoreConfigurationMXBeanImpl(datastoreContext.getDataStoreMXBeanType()); + datastoreConfigMXBean.setContext(datastoreContext); + datastoreConfigMXBean.registerMBean(); + + datastoreInfoMXBean = new DatastoreInfoMXBeanImpl(datastoreContext.getDataStoreMXBeanType(), actorContext); + datastoreInfoMXBean.registerMBean(); } public 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") @@ -82,24 +130,41 @@ public class DistributedDataStore implements DOMStore, SchemaContextListener, Au return listenerRegistrationProxy; } + @Override + public ListenerRegistration registerTreeChangeListener(YangInstanceIdentifier treeId, L listener) { + Preconditions.checkNotNull(treeId, "treeId should not be null"); + Preconditions.checkNotNull(listener, "listener should not be null"); + + final String shardName = ShardStrategyFactory.getStrategy(treeId).findShard(treeId); + LOG.debug("Registering tree listener: {} for tree: {} shard: {}", listener, treeId, shardName); + + final DataTreeChangeListenerProxy listenerRegistrationProxy = + new DataTreeChangeListenerProxy(actorContext, listener); + listenerRegistrationProxy.init(shardName, treeId); + + return listenerRegistrationProxy; + } + @Override public DOMStoreTransactionChain createTransactionChain() { - return new TransactionChainProxy(actorContext); + return txContextFactory.createTransactionChain(); } @Override public DOMStoreReadTransaction newReadOnlyTransaction() { - return new TransactionProxy(actorContext, TransactionProxy.TransactionType.READ_ONLY); + return new TransactionProxy(txContextFactory, TransactionType.READ_ONLY); } @Override public DOMStoreWriteTransaction newWriteOnlyTransaction() { - return new TransactionProxy(actorContext, TransactionProxy.TransactionType.WRITE_ONLY); + actorContext.acquireTxCreationPermit(); + return new TransactionProxy(txContextFactory, TransactionType.WRITE_ONLY); } @Override public DOMStoreReadWriteTransaction newReadWriteTransaction() { - return new TransactionProxy(actorContext, TransactionProxy.TransactionType.READ_WRITE); + actorContext.acquireTxCreationPermit(); + return new TransactionProxy(txContextFactory, TransactionType.READ_WRITE); } @Override @@ -108,12 +173,71 @@ public class DistributedDataStore implements DOMStore, SchemaContextListener, Au } @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(); + datastoreInfoMXBean.unregisterMBean(); + + if (closeable != null) { + try { + closeable.close(); + } catch (Exception e) { + LOG.debug("Error closing instance", e); + } + } + + txContextFactory.close(); actorContext.shutdown(); + DistributedDataStoreFactory.destroyInstance(this); } @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); + } + } + + private ActorRef createShardManager(ActorSystem actorSystem, ClusterWrapper cluster, Configuration configuration, + DatastoreContext datastoreContext, String shardDispatcher, String shardManagerId){ + Exception lastException = null; + + for(int i=0;i<100;i++) { + try { + return actorSystem.actorOf( + ShardManager.props(cluster, configuration, datastoreContext, waitTillReadyCountDownLatch) + .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; + } }