X-Git-Url: https://git.opendaylight.org/gerrit/gitweb?a=blobdiff_plain;ds=sidebyside;f=opendaylight%2Fmd-sal%2Fsal-distributed-datastore%2Fsrc%2Fmain%2Fjava%2Forg%2Fopendaylight%2Fcontroller%2Fcluster%2Fdatastore%2FShard.java;h=f9f4350e9eec1b3f8d8071e35c246b55a03f1003;hb=23472d531aca7f695082a3d57719894bfa34d0ac;hp=474c794b46eb238d81d06320f87e77b0fb057aef;hpb=2e75f2a8df84ff50d2b608c3346978d81378ee98;p=controller.git diff --git a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/Shard.java b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/Shard.java index 474c794b46..f9f4350e9e 100644 --- a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/Shard.java +++ b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/Shard.java @@ -16,6 +16,7 @@ import akka.serialization.Serialization; import com.google.common.annotations.VisibleForTesting; import com.google.common.base.Optional; import com.google.common.base.Preconditions; +import com.google.common.base.Throwables; import java.io.IOException; import java.util.Collection; import java.util.Collections; @@ -23,14 +24,13 @@ import java.util.Map; import java.util.concurrent.ExecutionException; import java.util.concurrent.TimeUnit; import javax.annotation.Nonnull; +import org.opendaylight.controller.cluster.access.concepts.TransactionIdentifier; import org.opendaylight.controller.cluster.common.actor.CommonConfig; import org.opendaylight.controller.cluster.common.actor.MessageTracker; import org.opendaylight.controller.cluster.common.actor.MessageTracker.Error; import org.opendaylight.controller.cluster.common.actor.MeteringBehavior; -import org.opendaylight.controller.cluster.datastore.ShardCommitCoordinator.CohortEntry; import org.opendaylight.controller.cluster.datastore.exceptions.NoShardLeaderException; import org.opendaylight.controller.cluster.datastore.identifiers.ShardIdentifier; -import org.opendaylight.controller.cluster.datastore.identifiers.ShardTransactionIdentifier; import org.opendaylight.controller.cluster.datastore.jmx.mbeans.shard.ShardMBeanFactory; import org.opendaylight.controller.cluster.datastore.jmx.mbeans.shard.ShardStats; import org.opendaylight.controller.cluster.datastore.messages.AbortTransaction; @@ -52,8 +52,8 @@ import org.opendaylight.controller.cluster.datastore.messages.RegisterChangeList import org.opendaylight.controller.cluster.datastore.messages.RegisterDataTreeChangeListener; import org.opendaylight.controller.cluster.datastore.messages.ShardLeaderStateChanged; import org.opendaylight.controller.cluster.datastore.messages.UpdateSchemaContext; -import org.opendaylight.controller.cluster.datastore.modification.Modification; -import org.opendaylight.controller.cluster.datastore.modification.MutableCompositeModification; +import org.opendaylight.controller.cluster.datastore.persisted.CommitTransactionPayload; +import org.opendaylight.controller.cluster.datastore.persisted.DataTreeCandidateSupplier; import org.opendaylight.controller.cluster.datastore.utils.Dispatchers; import org.opendaylight.controller.cluster.notifications.LeaderStateChanged; import org.opendaylight.controller.cluster.notifications.RegisterRoleChangeListener; @@ -65,9 +65,8 @@ import org.opendaylight.controller.cluster.raft.RaftState; import org.opendaylight.controller.cluster.raft.base.messages.FollowerInitialSyncUpStatus; import org.opendaylight.controller.cluster.raft.messages.AppendEntriesReply; import org.opendaylight.controller.cluster.raft.messages.ServerRemoved; -import org.opendaylight.controller.cluster.raft.protobuff.client.messages.CompositeModificationByteStringPayload; -import org.opendaylight.controller.cluster.raft.protobuff.client.messages.CompositeModificationPayload; -import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTree; +import org.opendaylight.controller.cluster.raft.protobuff.client.messages.Payload; +import org.opendaylight.yangtools.concepts.Identifier; import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeCandidate; import org.opendaylight.yangtools.yang.data.api.schema.tree.DataValidationFailedException; import org.opendaylight.yangtools.yang.data.api.schema.tree.ModificationType; @@ -84,10 +83,21 @@ import scala.concurrent.duration.FiniteDuration; */ public class Shard extends RaftActor { - protected static final Object TX_COMMIT_TIMEOUT_CHECK_MESSAGE = "txCommitTimeoutCheck"; + @VisibleForTesting + static final Object TX_COMMIT_TIMEOUT_CHECK_MESSAGE = new Object() { + @Override + public String toString() { + return "txCommitTimeoutCheck"; + } + }; @VisibleForTesting - static final Object GET_SHARD_MBEAN_MESSAGE = "getShardMBeanMessage"; + static final Object GET_SHARD_MBEAN_MESSAGE = new Object() { + @Override + public String toString() { + return "getShardMBeanMessage"; + } + }; // FIXME: shard names should be encapsulated in their own class and this should be exposed as a constant. public static final String DEFAULT_NAME = "default"; @@ -164,7 +174,8 @@ public class Shard extends RaftActor { new Dispatchers(context().system().dispatchers()).getDispatcherPath( Dispatchers.DispatcherType.Transaction), self(), getContext(), shardMBean); - snapshotCohort = new ShardSnapshotCohort(transactionActorFactory, store, LOG, this.name); + snapshotCohort = new ShardSnapshotCohort(builder.getId().getMemberName(), transactionActorFactory, store, + LOG, this.name); messageRetrySupport = new ShardTransactionMessageRetrySupport(this); } @@ -209,16 +220,14 @@ public class Shard extends RaftActor { } @Override - protected void handleCommand(final Object message) { - - final MessageTracker.Context context = appendEntriesReplyTracker.received(message); - final Optional maybeError = context.error(); - if (maybeError.isPresent()) { - LOG.trace("{} : AppendEntriesReply failed to arrive at the expected interval {}", persistenceId(), - maybeError.get()); - } + protected void handleNonRaftCommand(final Object message) { + try (final MessageTracker.Context context = appendEntriesReplyTracker.received(message)) { + final Optional maybeError = context.error(); + if (maybeError.isPresent()) { + LOG.trace("{} : AppendEntriesReply failed to arrive at the expected interval {}", persistenceId(), + maybeError.get()); + } - try { if (CreateTransaction.isSerializedType(message)) { handleCreateTransaction(message); } else if (message instanceof BatchedModifications) { @@ -245,7 +254,7 @@ public class Shard extends RaftActor { PeerAddressResolved resolved = (PeerAddressResolved) message; setPeerAddress(resolved.getPeerId().toString(), resolved.getPeerAddress()); - } else if (message.equals(TX_COMMIT_TIMEOUT_CHECK_MESSAGE)) { + } else if (TX_COMMIT_TIMEOUT_CHECK_MESSAGE.equals(message)) { commitCoordinator.checkForExpiredTransactions(transactionCommitTimeout, this); } else if(message instanceof DatastoreContext) { onDatastoreContext((DatastoreContext)message); @@ -262,11 +271,12 @@ public class Shard extends RaftActor { context().parent().forward(message, context()); } else if(ShardTransactionMessageRetrySupport.TIMER_MESSAGE_CLASS.isInstance(message)) { messageRetrySupport.onTimerMessage(message); + } else if (message instanceof DataTreeCohortActorRegistry.CohortRegistryCommand) { + commitCoordinator.processCohortRegistryCommand(getSender(), + (DataTreeCohortActorRegistry.CohortRegistryCommand) message); } else { - super.handleCommand(message); + super.handleNonRaftCommand(message); } - } finally { - context.done(); } } @@ -289,9 +299,8 @@ public class Shard extends RaftActor { @Override protected LeaderStateChanged newLeaderStateChanged(String memberId, String leaderId, short leaderPayloadVersion) { - return new ShardLeaderStateChanged(memberId, leaderId, - isLeader() ? Optional.of(store.getDataTree()) : Optional.absent(), - leaderPayloadVersion); + return isLeader() ? new ShardLeaderStateChanged(memberId, leaderId, store.getDataTree(), leaderPayloadVersion) + : new ShardLeaderStateChanged(memberId, leaderId, leaderPayloadVersion); } protected void onDatastoreContext(DatastoreContext context) { @@ -316,16 +325,27 @@ public class Shard extends RaftActor { void continueCommit(final CohortEntry cohortEntry) { final DataTreeCandidate candidate = cohortEntry.getCandidate(); + final TransactionIdentifier transactionId = cohortEntry.getTransactionID(); // If we do not have any followers and we are not using persistence // or if cohortEntry has no modifications // we can apply modification to the state immediately if ((!hasFollowers() && !persistence().isRecoveryApplicable()) || isEmptyCommit(candidate)) { - applyModificationToState(cohortEntry.getReplySender(), cohortEntry.getTransactionID(), candidate); - } else { - Shard.this.persistData(cohortEntry.getReplySender(), cohortEntry.getTransactionID(), - DataTreeCandidatePayload.create(candidate)); + applyModificationToState(cohortEntry.getReplySender(), transactionId, candidate); + return; } + + final Payload payload; + try { + payload = CommitTransactionPayload.create(transactionId, candidate); + } catch (IOException e) { + LOG.error("{}: failed to encode transaction {} candidate {}", persistenceId(), transactionId, candidate, + e); + // TODO: do we need to do something smarter here? + throw Throwables.propagate(e); + } + + persistData(cohortEntry.getReplySender(), cohortEntry.getTransactionID(), payload); } private void handleCommitTransaction(final CommitTransaction commit) { @@ -345,12 +365,13 @@ public class Shard extends RaftActor { } } - private void finishCommit(@Nonnull final ActorRef sender, @Nonnull final String transactionID, @Nonnull final CohortEntry cohortEntry) { + private void finishCommit(@Nonnull final ActorRef sender, @Nonnull final Identifier transactionID, + @Nonnull final CohortEntry cohortEntry) { LOG.debug("{}: Finishing commit for transaction {}", persistenceId(), cohortEntry.getTransactionID()); try { try { - cohortEntry.commit(); + cohortEntry.commit(); } catch(ExecutionException e) { // We may get a "store tree and candidate base differ" IllegalStateException from commit under // certain edge case scenarios so we'll try to re-apply the candidate from scratch as a last @@ -387,7 +408,7 @@ public class Shard extends RaftActor { } } - private void finishCommit(@Nonnull final ActorRef sender, final @Nonnull String transactionID) { + private void finishCommit(@Nonnull final ActorRef sender, final @Nonnull Identifier transactionID) { // With persistence enabled, this method is called via applyState by the leader strategy // after the commit has been replicated to a majority of the followers. @@ -428,7 +449,7 @@ public class Shard extends RaftActor { LOG.debug("{}: Can committing transaction {}", persistenceId(), canCommit.getTransactionID()); if (isLeader()) { - commitCoordinator.handleCanCommit(canCommit.getTransactionID(), getSender(), this); + commitCoordinator.handleCanCommit(canCommit.getTransactionID(), getSender(), this); } else { ActorSelection leader = getLeader(); if (leader == null) { @@ -536,7 +557,8 @@ public class Shard extends RaftActor { boolean isLeaderActive = isLeaderActive(); if (isLeader() && isLeaderActive) { - commitCoordinator.handleForwardedReadyTransaction(forwardedReady, getSender(), this); + commitCoordinator.handleForwardedReadyTransaction(forwardedReady, getSender(), this, + store.getSchemaContext()); } else { ActorSelection leader = getLeader(); if (!isLeaderActive || leader == null) { @@ -557,7 +579,7 @@ public class Shard extends RaftActor { doAbortTransaction(abort.getTransactionID(), getSender()); } - void doAbortTransaction(final String transactionID, final ActorRef sender) { + void doAbortTransaction(final TransactionIdentifier transactionID, final ActorRef sender) { commitCoordinator.handleAbort(transactionID, sender, this); } @@ -573,14 +595,7 @@ public class Shard extends RaftActor { } private void closeTransactionChain(final CloseTransactionChain closeTransactionChain) { - store.closeTransactionChain(closeTransactionChain.getTransactionChainId()); - } - - private ActorRef createTypedTransactionActor(int transactionType, - ShardTransactionIdentifier transactionId, String transactionChainId) { - - return transactionActorFactory.newShardTransaction(TransactionType.fromInt(transactionType), - transactionId, transactionChainId); + store.closeTransactionChain(closeTransactionChain.getIdentifier()); } private void createTransaction(CreateTransaction createTransaction) { @@ -591,7 +606,7 @@ public class Shard extends RaftActor { } ActorRef transactionActor = createTransaction(createTransaction.getTransactionType(), - createTransaction.getTransactionId(), createTransaction.getTransactionChainId()); + createTransaction.getTransactionId()); getSender().tell(new CreateTransactionReply(Serialization.serializedActorPath(transactionActor), createTransaction.getTransactionId(), createTransaction.getVersion()).toSerializable(), getSelf()); @@ -600,24 +615,14 @@ public class Shard extends RaftActor { } } - private ActorRef createTransaction(int transactionType, String remoteTransactionId, - String transactionChainId) { - - - ShardTransactionIdentifier transactionId = new ShardTransactionIdentifier(remoteTransactionId); - - if(LOG.isDebugEnabled()) { - LOG.debug("{}: Creating transaction : {} ", persistenceId(), transactionId); - } - - ActorRef transactionActor = createTypedTransactionActor(transactionType, transactionId, - transactionChainId); - - return transactionActor; + private ActorRef createTransaction(int transactionType, TransactionIdentifier transactionId) { + LOG.debug("{}: Creating transaction : {} ", persistenceId(), transactionId); + return transactionActorFactory.newShardTransaction(TransactionType.fromInt(transactionType), + transactionId); } - private void commitWithNewTransaction(final Modification modification) { - ReadWriteShardDataTreeTransaction tx = store.newReadWriteTransaction(modification.toString(), null); + private void commitWithNewTransaction(final BatchedModifications modification) { + ReadWriteShardDataTreeTransaction tx = store.newReadWriteTransaction(modification.getTransactionID()); modification.apply(tx.getSnapshot()); try { snapshotCohort.syncCommitTransaction(tx); @@ -675,12 +680,12 @@ public class Shard extends RaftActor { } @Override - protected void applyState(final ActorRef clientActor, final String identifier, final Object data) { - if (data instanceof DataTreeCandidatePayload) { + protected void applyState(final ActorRef clientActor, final Identifier identifier, final Object data) { + if (data instanceof DataTreeCandidateSupplier) { if (clientActor == null) { // No clientActor indicates a replica coming from the leader try { - store.applyForeignCandidate(identifier, ((DataTreeCandidatePayload)data).getCandidate()); + store.applyForeignCandidate(identifier, ((DataTreeCandidateSupplier)data).getCandidate().getValue()); } catch (DataValidationFailedException | IOException e) { LOG.error("{}: Error applying replica {}", persistenceId(), identifier, e); } @@ -688,22 +693,13 @@ public class Shard extends RaftActor { // Replication consensus reached, proceed to commit finishCommit(clientActor, identifier); } - } else if (data instanceof CompositeModificationPayload) { - Object modification = ((CompositeModificationPayload) data).getModification(); - - applyModificationToState(clientActor, identifier, modification); - } else if(data instanceof CompositeModificationByteStringPayload ){ - Object modification = ((CompositeModificationByteStringPayload) data).getModification(); - - applyModificationToState(clientActor, identifier, modification); } else { - LOG.error("{}: Unknown state received {} Class loader = {} CompositeNodeMod.ClassLoader = {}", - persistenceId(), data, data.getClass().getClassLoader(), - CompositeModificationPayload.class.getClassLoader()); + LOG.error("{}: Unknown state received {} ClassLoader {}", persistenceId(), data, + data.getClass().getClassLoader()); } } - private void applyModificationToState(ActorRef clientActor, String identifier, Object modification) { + private void applyModificationToState(ActorRef clientActor, Identifier identifier, Object modification) { if(modification == null) { LOG.error( "{}: modification is null - this is very unexpected, clientActor = {}, identifier = {}", @@ -711,7 +707,11 @@ public class Shard extends RaftActor { } else if(clientActor == null) { // There's no clientActor to which to send a commit reply so we must be applying // replicated state from the leader. - commitWithNewTransaction(MutableCompositeModification.fromSerializable(modification)); + + // The only implementation we know of is BatchedModifications, which also carries a transaction + // identifier -- which we really need that. + Preconditions.checkArgument(modification instanceof BatchedModifications); + commitWithNewTransaction((BatchedModifications)modification); } else { // This must be the OK to commit after replication consensus. finishCommit(clientActor, identifier);