X-Git-Url: https://git.opendaylight.org/gerrit/gitweb?a=blobdiff_plain;f=opendaylight%2Fmd-sal%2Fsal-distributed-datastore%2Fsrc%2Fmain%2Fjava%2Forg%2Fopendaylight%2Fcontroller%2Fcluster%2Fdatastore%2FTransactionProxy.java;h=a2a7a12044a74e23bc181f65e450e14548059bec;hb=e2d9f9c57e124d46e117f17c44b77c89222fdb99;hp=64b9086c250c16f759a417003d0cefc9839f688b;hpb=3ea96ea6cf7fb77ff3c984294c81f0997c667b1f;p=controller.git
diff --git a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/TransactionProxy.java b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/TransactionProxy.java
index 64b9086c25..a2a7a12044 100644
--- a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/TransactionProxy.java
+++ b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/TransactionProxy.java
@@ -18,7 +18,6 @@ import com.google.common.base.Optional;
import com.google.common.base.Preconditions;
import com.google.common.collect.Lists;
import com.google.common.util.concurrent.CheckedFuture;
-import com.google.common.util.concurrent.ListenableFuture;
import com.google.common.util.concurrent.SettableFuture;
import java.util.ArrayList;
import java.util.Collection;
@@ -41,6 +40,7 @@ import org.opendaylight.controller.cluster.datastore.messages.CreateTransactionR
import org.opendaylight.controller.cluster.datastore.shardstrategy.ShardStrategyFactory;
import org.opendaylight.controller.cluster.datastore.utils.ActorContext;
import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
+import org.opendaylight.controller.sal.core.spi.data.AbstractDOMStoreTransaction;
import org.opendaylight.controller.sal.core.spi.data.DOMStoreReadWriteTransaction;
import org.opendaylight.controller.sal.core.spi.data.DOMStoreThreePhaseCommitCohort;
import org.opendaylight.yangtools.util.concurrent.MappingCheckedFuture;
@@ -65,12 +65,29 @@ import scala.concurrent.duration.FiniteDuration;
* shards will be executed.
*
*/
-public class TransactionProxy implements DOMStoreReadWriteTransaction {
+public class TransactionProxy extends AbstractDOMStoreTransaction implements DOMStoreReadWriteTransaction {
public static enum TransactionType {
READ_ONLY,
WRITE_ONLY,
- READ_WRITE
+ READ_WRITE;
+
+ // Cache all values
+ private static final TransactionType[] VALUES = values();
+
+ public static TransactionType fromInt(final int type) {
+ try {
+ return VALUES[type];
+ } catch (IndexOutOfBoundsException e) {
+ throw new IllegalArgumentException("In TransactionType enum value " + type, e);
+ }
+ }
+ }
+
+ private static enum TransactionState {
+ OPEN,
+ READY,
+ CLOSED,
}
static final Mapper SAME_FAILURE_TRANSFORMER =
@@ -135,7 +152,7 @@ public class TransactionProxy implements DOMStoreReadWriteTransaction {
remoteTransactionActors = referent.remoteTransactionActors;
remoteTransactionActorsMB = referent.remoteTransactionActorsMB;
actorContext = referent.actorContext;
- identifier = referent.identifier;
+ identifier = referent.getIdentifier();
}
@Override
@@ -174,10 +191,9 @@ public class TransactionProxy implements DOMStoreReadWriteTransaction {
private final TransactionType transactionType;
private final ActorContext actorContext;
- private final TransactionIdentifier identifier;
private final String transactionChainId;
private final SchemaContext schemaContext;
- private boolean inReadyState;
+ private TransactionState state = TransactionState.OPEN;
private volatile boolean initialized;
private Semaphore operationLimiter;
@@ -187,8 +203,8 @@ public class TransactionProxy implements DOMStoreReadWriteTransaction {
this(actorContext, transactionType, "");
}
- public TransactionProxy(ActorContext actorContext, TransactionType transactionType,
- String transactionChainId) {
+ public TransactionProxy(ActorContext actorContext, TransactionType transactionType, String transactionChainId) {
+ super(createIdentifier(actorContext));
this.actorContext = Preconditions.checkNotNull(actorContext,
"actorContext should not be null");
this.transactionType = Preconditions.checkNotNull(transactionType,
@@ -197,14 +213,16 @@ public class TransactionProxy implements DOMStoreReadWriteTransaction {
"schemaContext should not be null");
this.transactionChainId = transactionChainId;
+ LOG.debug("Created txn {} of type {} on chain {}", getIdentifier(), transactionType, transactionChainId);
+ }
+
+ private static TransactionIdentifier createIdentifier(ActorContext actorContext) {
String memberName = actorContext.getCurrentMemberName();
- if(memberName == null){
+ if (memberName == null) {
memberName = "UNKNOWN-MEMBER";
}
- this.identifier = new TransactionIdentifier(memberName, counter.getAndIncrement());
-
- LOG.debug("Created txn {} of type {} on chain {}", identifier, transactionType, transactionChainId);
+ return new TransactionIdentifier(memberName, counter.getAndIncrement());
}
@VisibleForTesting
@@ -212,8 +230,8 @@ public class TransactionProxy implements DOMStoreReadWriteTransaction {
List> recordedOperationFutures = Lists.newArrayList();
for(TransactionFutureCallback txFutureCallback : txFutureCallbackMap.values()) {
TransactionContext transactionContext = txFutureCallback.getTransactionContext();
- if(transactionContext != null) {
- recordedOperationFutures.addAll(transactionContext.getRecordedOperationFutures());
+ if (transactionContext != null) {
+ transactionContext.copyRecordedOperationFutures(recordedOperationFutures);
}
}
@@ -238,7 +256,7 @@ public class TransactionProxy implements DOMStoreReadWriteTransaction {
Preconditions.checkState(transactionType != TransactionType.WRITE_ONLY,
"Read operation on write-only transaction is not allowed");
- LOG.debug("Tx {} read {}", identifier, path);
+ LOG.debug("Tx {} read {}", getIdentifier(), path);
throttleOperation();
@@ -261,7 +279,7 @@ public class TransactionProxy implements DOMStoreReadWriteTransaction {
Preconditions.checkState(transactionType != TransactionType.WRITE_ONLY,
"Exists operation on write-only transaction is not allowed");
- LOG.debug("Tx {} exists {}", identifier, path);
+ LOG.debug("Tx {} exists {}", getIdentifier(), path);
throttleOperation();
@@ -281,7 +299,7 @@ public class TransactionProxy implements DOMStoreReadWriteTransaction {
private void checkModificationState() {
Preconditions.checkState(transactionType != TransactionType.READ_ONLY,
"Modification operation on read-only transaction is not allowed");
- Preconditions.checkState(!inReadyState,
+ Preconditions.checkState(state == TransactionState.OPEN,
"Transaction is sealed - further modifications are not allowed");
}
@@ -314,13 +332,12 @@ public class TransactionProxy implements DOMStoreReadWriteTransaction {
}
}
-
@Override
public void write(final YangInstanceIdentifier path, final NormalizedNode, ?> data) {
checkModificationState();
- LOG.debug("Tx {} write {}", identifier, path);
+ LOG.debug("Tx {} write {}", getIdentifier(), path);
throttleOperation();
@@ -338,7 +355,7 @@ public class TransactionProxy implements DOMStoreReadWriteTransaction {
checkModificationState();
- LOG.debug("Tx {} merge {}", identifier, path);
+ LOG.debug("Tx {} merge {}", getIdentifier(), path);
throttleOperation();
@@ -356,7 +373,7 @@ public class TransactionProxy implements DOMStoreReadWriteTransaction {
checkModificationState();
- LOG.debug("Tx {} delete {}", identifier, path);
+ LOG.debug("Tx {} delete {}", getIdentifier(), path);
throttleOperation();
@@ -369,18 +386,29 @@ public class TransactionProxy implements DOMStoreReadWriteTransaction {
});
}
+ private boolean seal(final TransactionState newState) {
+ if (state == TransactionState.OPEN) {
+ state = newState;
+ return true;
+ } else {
+ return false;
+ }
+ }
+
@Override
public DOMStoreThreePhaseCommitCohort ready() {
+ Preconditions.checkState(transactionType != TransactionType.READ_ONLY,
+ "Read-only transactions cannot be readied");
- checkModificationState();
-
- inReadyState = true;
+ final boolean success = seal(TransactionState.READY);
+ Preconditions.checkState(success, "Transaction %s is %s, it cannot be readied", getIdentifier(), state);
- LOG.debug("Tx {} Readying {} transactions for commit", identifier,
+ LOG.debug("Tx {} Readying {} transactions for commit", getIdentifier(),
txFutureCallbackMap.size());
- if(txFutureCallbackMap.size() == 0) {
+ if (txFutureCallbackMap.isEmpty()) {
onTransactionReady(Collections.>emptyList());
+ TransactionRateLimitingCallback.adjustRateLimitForUnusedTransaction(actorContext);
return NoOpDOMStoreThreePhaseCommitCohort.INSTANCE;
}
@@ -390,7 +418,7 @@ public class TransactionProxy implements DOMStoreReadWriteTransaction {
for(TransactionFutureCallback txFutureCallback : txFutureCallbackMap.values()) {
- LOG.debug("Tx {} Readying transaction for shard {} chain {}", identifier,
+ LOG.debug("Tx {} Readying transaction for shard {} chain {}", getIdentifier(),
txFutureCallback.getShardName(), transactionChainId);
final TransactionContext transactionContext = txFutureCallback.getTransactionContext();
@@ -415,7 +443,7 @@ public class TransactionProxy implements DOMStoreReadWriteTransaction {
onTransactionReady(cohortFutures);
return new ThreePhaseCommitCohortProxy(actorContext, cohortFutures,
- identifier.toString());
+ getIdentifier().toString());
}
/**
@@ -426,13 +454,18 @@ public class TransactionProxy implements DOMStoreReadWriteTransaction {
protected void onTransactionReady(List> cohortFutures) {
}
- @Override
- public Object getIdentifier() {
- return this.identifier;
- }
-
@Override
public void close() {
+ if (!seal(TransactionState.CLOSED)) {
+ if (state == TransactionState.CLOSED) {
+ // Idempotent no-op as per AutoCloseable recommendation
+ return;
+ }
+
+ throw new IllegalStateException(String.format("Transaction %s is ready, it cannot be closed",
+ getIdentifier()));
+ }
+
for (TransactionFutureCallback txFutureCallback : txFutureCallbackMap.values()) {
txFutureCallback.enqueueTransactionOperation(new TransactionOperation() {
@Override
@@ -473,7 +506,7 @@ public class TransactionProxy implements DOMStoreReadWriteTransaction {
@Override
public void onComplete(Throwable failure, ActorSelection primaryShard) {
if(failure != null) {
- newTxFutureCallback.onComplete(failure, null);
+ newTxFutureCallback.createTransactionContext(failure, null);
} else {
newTxFutureCallback.setPrimaryShard(primaryShard);
}
@@ -492,13 +525,6 @@ public class TransactionProxy implements DOMStoreReadWriteTransaction {
return actorContext;
}
- /**
- * Interfaces for transaction operations to be invoked later.
- */
- private static interface TransactionOperation {
- void invoke(TransactionContext transactionContext);
- }
-
/**
* Implements a Future OnComplete callback for a CreateTransaction message. This class handles
* retries, up to a limit, if the shard doesn't have a leader yet. This is done by scheduling a
@@ -550,10 +576,21 @@ public class TransactionProxy implements DOMStoreReadWriteTransaction {
* Sets the target primary shard and initiates a CreateTransaction try.
*/
void setPrimaryShard(ActorSelection primaryShard) {
- LOG.debug("Tx {} Primary shard found - trying create transaction", identifier);
-
this.primaryShard = primaryShard;
- tryCreateTransaction();
+
+ if(transactionType == TransactionType.WRITE_ONLY &&
+ actorContext.getDatastoreContext().isWriteOnlyTransactionOptimizationsEnabled()) {
+ LOG.debug("Tx {} Primary shard {} found - creating WRITE_ONLY transaction context",
+ getIdentifier(), primaryShard);
+
+ // For write-only Tx's we prepare the transaction modifications directly on the shard actor
+ // to avoid the overhead of creating a separate transaction actor.
+ // FIXME: can't assume the shard version is LITHIUM_VERSION - need to obtain it somehow.
+ executeTxOperatonsOnComplete(createValidTransactionContext(this.primaryShard,
+ this.primaryShard.path().toString(), DataStoreVersions.LITHIUM_VERSION));
+ } else {
+ tryCreateTransaction();
+ }
}
/**
@@ -563,7 +600,7 @@ public class TransactionProxy implements DOMStoreReadWriteTransaction {
boolean invokeOperation = true;
synchronized(txOperationsOnComplete) {
if(transactionContext == null) {
- LOG.debug("Tx {} Adding operation on complete {}", identifier);
+ LOG.debug("Tx {} Adding operation on complete", getIdentifier());
invokeOperation = false;
txOperationsOnComplete.add(operation);
@@ -590,7 +627,11 @@ public class TransactionProxy implements DOMStoreReadWriteTransaction {
* Performs a CreateTransaction try async.
*/
private void tryCreateTransaction() {
- Object serializedCreateMessage = new CreateTransaction(identifier.toString(),
+ if(LOG.isDebugEnabled()) {
+ LOG.debug("Tx {} Primary shard {} found - trying create transaction", getIdentifier(), primaryShard);
+ }
+
+ Object serializedCreateMessage = new CreateTransaction(getIdentifier().toString(),
TransactionProxy.this.transactionType.ordinal(),
getTransactionChainId()).toSerializable();
@@ -608,7 +649,7 @@ public class TransactionProxy implements DOMStoreReadWriteTransaction {
// is ok.
if(--createTxTries > 0) {
LOG.debug("Tx {} Shard {} has no leader yet - scheduling create Tx retry",
- identifier, shardName);
+ getIdentifier(), shardName);
actorContext.getActorSystem().scheduler().scheduleOnce(CREATE_TX_TRY_INTERVAL,
new Runnable() {
@@ -621,6 +662,10 @@ public class TransactionProxy implements DOMStoreReadWriteTransaction {
}
}
+ createTransactionContext(failure, response);
+ }
+
+ private void createTransactionContext(Throwable failure, Object response) {
// Mainly checking for state violation here to perform a volatile read of "initialized" to
// ensure updates to operationLimter et al are visible to this thread (ie we're doing
// "piggy-back" synchronization here).
@@ -636,18 +681,17 @@ public class TransactionProxy implements DOMStoreReadWriteTransaction {
// TransactionContext until after we've executed all cached TransactionOperations.
TransactionContext localTransactionContext;
if(failure != null) {
- LOG.debug("Tx {} Creating NoOpTransaction because of error: {}", identifier,
- failure.getMessage());
+ LOG.debug("Tx {} Creating NoOpTransaction because of error", getIdentifier(), failure);
- localTransactionContext = new NoOpTransactionContext(failure, identifier, operationLimiter);
- } else if (response.getClass().equals(CreateTransactionReply.SERIALIZABLE_CLASS)) {
+ localTransactionContext = new NoOpTransactionContext(failure, getIdentifier(), operationLimiter);
+ } else if (CreateTransactionReply.SERIALIZABLE_CLASS.equals(response.getClass())) {
localTransactionContext = createValidTransactionContext(
CreateTransactionReply.fromSerializable(response));
} else {
IllegalArgumentException exception = new IllegalArgumentException(String.format(
"Invalid reply type %s for CreateTransaction", response.getClass()));
- localTransactionContext = new NoOpTransactionContext(exception, identifier, operationLimiter);
+ localTransactionContext = new NoOpTransactionContext(exception, getIdentifier(), operationLimiter);
}
executeTxOperatonsOnComplete(localTransactionContext);
@@ -687,11 +731,14 @@ public class TransactionProxy implements DOMStoreReadWriteTransaction {
}
private TransactionContext createValidTransactionContext(CreateTransactionReply reply) {
- String transactionPath = reply.getTransactionPath();
+ LOG.debug("Tx {} Received {}", getIdentifier(), reply);
- LOG.debug("Tx {} Received {}", identifier, reply);
+ return createValidTransactionContext(actorContext.actorSelection(reply.getTransactionPath()),
+ reply.getTransactionPath(), reply.getVersion());
+ }
- ActorSelection transactionActor = actorContext.actorSelection(transactionPath);
+ private TransactionContext createValidTransactionContext(ActorSelection transactionActor,
+ String transactionPath, short remoteTransactionVersion) {
if (transactionType == TransactionType.READ_ONLY) {
// Read-only Tx's aren't explicitly closed by the client so we create a PhantomReference
@@ -720,45 +767,18 @@ public class TransactionProxy implements DOMStoreReadWriteTransaction {
// Check if TxActor is created in the same node
boolean isTxActorLocal = actorContext.isPathLocal(transactionPath);
- if(reply.getVersion() >= DataStoreVersions.LITHIUM_VERSION) {
- return new TransactionContextImpl(transactionPath, transactionActor, identifier,
- actorContext, schemaContext, isTxActorLocal, reply.getVersion(), operationCompleter);
+ if(remoteTransactionVersion < DataStoreVersions.LITHIUM_VERSION) {
+ return new PreLithiumTransactionContextImpl(transactionPath, transactionActor, getIdentifier(),
+ transactionChainId, actorContext, schemaContext, isTxActorLocal, remoteTransactionVersion,
+ operationCompleter);
+ } else if (transactionType == TransactionType.WRITE_ONLY &&
+ actorContext.getDatastoreContext().isWriteOnlyTransactionOptimizationsEnabled()) {
+ return new WriteOnlyTransactionContextImpl(transactionActor, getIdentifier(), transactionChainId,
+ actorContext, schemaContext, isTxActorLocal, remoteTransactionVersion, operationCompleter);
} else {
- return new PreLithiumTransactionContextImpl(transactionPath, transactionActor, identifier,
- actorContext, schemaContext, isTxActorLocal, reply.getVersion(), operationCompleter);
+ return new TransactionContextImpl(transactionActor, getIdentifier(), transactionChainId,
+ actorContext, schemaContext, isTxActorLocal, remoteTransactionVersion, operationCompleter);
}
}
}
-
- private static class NoOpDOMStoreThreePhaseCommitCohort implements DOMStoreThreePhaseCommitCohort {
- static NoOpDOMStoreThreePhaseCommitCohort INSTANCE = new NoOpDOMStoreThreePhaseCommitCohort();
-
- private static final ListenableFuture IMMEDIATE_VOID_SUCCESS =
- com.google.common.util.concurrent.Futures.immediateFuture(null);
- private static final ListenableFuture IMMEDIATE_BOOLEAN_SUCCESS =
- com.google.common.util.concurrent.Futures.immediateFuture(Boolean.TRUE);
-
- private NoOpDOMStoreThreePhaseCommitCohort() {
- }
-
- @Override
- public ListenableFuture canCommit() {
- return IMMEDIATE_BOOLEAN_SUCCESS;
- }
-
- @Override
- public ListenableFuture preCommit() {
- return IMMEDIATE_VOID_SUCCESS;
- }
-
- @Override
- public ListenableFuture abort() {
- return IMMEDIATE_VOID_SUCCESS;
- }
-
- @Override
- public ListenableFuture commit() {
- return IMMEDIATE_VOID_SUCCESS;
- }
- }
}