import akka.actor.ActorRef;
import com.google.common.base.Preconditions;
import java.io.IOException;
-import java.util.Optional;
import org.opendaylight.controller.cluster.access.concepts.ClientIdentifier;
import org.opendaylight.controller.cluster.access.concepts.FrontendIdentifier;
import org.opendaylight.controller.cluster.access.concepts.FrontendType;
import org.opendaylight.controller.cluster.access.concepts.LocalHistoryIdentifier;
import org.opendaylight.controller.cluster.access.concepts.MemberName;
-import org.opendaylight.controller.cluster.access.concepts.TransactionIdentifier;
import org.opendaylight.controller.cluster.datastore.actors.ShardSnapshotActor;
import org.opendaylight.controller.cluster.datastore.persisted.ShardDataTreeSnapshot;
import org.opendaylight.controller.cluster.raft.RaftActorSnapshotCohort;
-import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
-import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
import org.slf4j.Logger;
/**
class ShardSnapshotCohort implements RaftActorSnapshotCohort {
private static final FrontendType SNAPSHOT_APPLY = FrontendType.forName("snapshot-apply");
- private final LocalHistoryIdentifier applyHistoryId;
private final ActorRef snapshotActor;
private final ShardDataTree store;
private final String logId;
private final Logger log;
- private long applyCounter;
-
private ShardSnapshotCohort(final LocalHistoryIdentifier applyHistoryId, final ActorRef snapshotActor,
final ShardDataTree store, final Logger log, final String logId) {
- this.applyHistoryId = Preconditions.checkNotNull(applyHistoryId);
this.snapshotActor = Preconditions.checkNotNull(snapshotActor);
this.store = Preconditions.checkNotNull(store);
this.log = log;
@Override
public void createSnapshot(final ActorRef actorRef) {
// Forward the request to the snapshot actor
- ShardSnapshotActor.requestSnapshot(snapshotActor, store.takeRecoverySnapshot(), actorRef);
+ ShardSnapshotActor.requestSnapshot(snapshotActor, store.takeStateSnapshot(), actorRef);
}
- private void deserializeAndApplySnapshot(final byte[] snapshotBytes) {
+ @Override
+ public void applySnapshot(final byte[] snapshotBytes) {
+ // Since this will be done only on Recovery or when this actor is a Follower
+ // we can safely commit everything in here. We not need to worry about event notifications
+ // as they would have already been disabled on the follower
+
+ log.info("{}: Applying snapshot", logId);
+
final ShardDataTreeSnapshot snapshot;
try {
snapshot = ShardDataTreeSnapshot.deserialize(snapshotBytes);
}
try {
- final ReadWriteShardDataTreeTransaction transaction = store.newReadWriteTransaction(
- new TransactionIdentifier(applyHistoryId, applyCounter++));
-
- // delete everything first
- transaction.getSnapshot().delete(YangInstanceIdentifier.EMPTY);
-
- final Optional<NormalizedNode<?, ?>> maybeNode = snapshot.getRootNode();
- if (maybeNode.isPresent()) {
- // Add everything from the remote node back
- transaction.getSnapshot().write(YangInstanceIdentifier.EMPTY, maybeNode.get());
- }
-
- store.applyRecoveryTransaction(transaction);
+ store.applySnapshot(snapshot);
} catch (Exception e) {
- log.error("{}: An exception occurred when applying snapshot", logId, e);
+ log.error("{}: Failed to apply snapshot {}", logId, snapshot, e);
+ return;
}
- }
-
- @Override
- public void applySnapshot(final byte[] snapshotBytes) {
- // Since this will be done only on Recovery or when this actor is a Follower
- // we can safely commit everything in here. We not need to worry about event notifications
- // as they would have already been disabled on the follower
-
- log.info("{}: Applying snapshot", logId);
- deserializeAndApplySnapshot(snapshotBytes);
log.info("{}: Done applying snapshot", logId);
}
}