import akka.japi.Procedure;
import akka.persistence.SnapshotSelectionCriteria;
+import com.google.common.annotations.VisibleForTesting;
import com.google.protobuf.ByteString;
import java.util.List;
-import org.opendaylight.controller.cluster.DataPersistenceProvider;
import org.opendaylight.controller.cluster.raft.base.messages.CaptureSnapshot;
import org.opendaylight.controller.cluster.raft.base.messages.SendInstallSnapshot;
import org.opendaylight.controller.cluster.raft.behaviors.RaftActorBehavior;
public class SnapshotManager implements SnapshotState {
private final SnapshotState IDLE = new Idle();
- private final SnapshotState CAPTURING = new Capturing();
private final SnapshotState PERSISTING = new Persisting();
private final SnapshotState CREATING = new Creating();
private CaptureSnapshot captureSnapshot;
private long lastSequenceNumber = -1;
+ private Procedure<Void> createSnapshotProcedure;
+
public SnapshotManager(RaftActorContext context, Logger logger) {
this.context = context;
this.LOG = logger;
}
@Override
- public void create(Procedure<Void> callback) {
- currentState.create(callback);
+ public void persist(byte[] snapshotBytes, RaftActorBehavior currentBehavior, long totalMemory) {
+ currentState.persist(snapshotBytes, currentBehavior, totalMemory);
}
@Override
- public void persist(DataPersistenceProvider persistenceProvider, byte[] snapshotBytes,
- RaftActorBehavior currentBehavior, long totalMemory) {
- currentState.persist(persistenceProvider, snapshotBytes, currentBehavior, totalMemory);
- }
-
- @Override
- public void commit(DataPersistenceProvider persistenceProvider, long sequenceNumber) {
- currentState.commit(persistenceProvider, sequenceNumber);
+ public void commit(long sequenceNumber) {
+ currentState.commit(sequenceNumber);
}
@Override
return currentState.trimLog(desiredTrimIndex, currentBehavior);
}
+ public void setCreateSnapshotCallable(Procedure<Void> createSnapshotProcedure) {
+ this.createSnapshotProcedure = createSnapshotProcedure;
+ }
+
+ @VisibleForTesting
+ public CaptureSnapshot getCaptureSnapshot() {
+ return captureSnapshot;
+ }
+
private boolean hasFollowers(){
return context.getPeerAddresses().keySet().size() > 0;
}
}
@Override
- public void create(Procedure<Void> callback) {
- LOG.debug("create should not be called in state {}", this);
- }
-
- @Override
- public void persist(DataPersistenceProvider persistenceProvider, byte[] snapshotBytes,
- RaftActorBehavior currentBehavior, long totalMemory) {
+ public void persist(byte[] snapshotBytes, RaftActorBehavior currentBehavior, long totalMemory) {
LOG.debug("persist should not be called in state {}", this);
}
@Override
- public void commit(DataPersistenceProvider persistenceProvider, long sequenceNumber) {
+ public void commit(long sequenceNumber) {
LOG.debug("commit should not be called in state {}", this);
}
lastLogEntry.getTerm(), lastAppliedIndex, lastAppliedTerm,
newReplicatedToAllIndex, newReplicatedToAllTerm, unAppliedEntries, targetFollower != null);
- SnapshotManager.this.currentState = CAPTURING;
-
if(captureSnapshot.isInstallSnapshotInitiated()) {
LOG.info("{}: Initiating snapshot capture {} to install on {}",
persistenceId(), captureSnapshot, targetFollower);
LOG.debug("lastSequenceNumber prior to capture: {}", lastSequenceNumber);
- context.getActor().tell(captureSnapshot, context.getActor());
+ SnapshotManager.this.currentState = CREATING;
+
+ try {
+ createSnapshotProcedure.apply(null);
+ } catch (Exception e) {
+ SnapshotManager.this.currentState = IDLE;
+ LOG.error("Error creating snapshot", e);
+ return false;
+ }
return true;
}
}
}
- private class Capturing extends AbstractSnapshotState {
-
- @Override
- public boolean isCapturing() {
- return true;
- }
-
- @Override
- public void create(Procedure<Void> callback) {
- try {
- callback.apply(null);
- SnapshotManager.this.currentState = CREATING;
- } catch (Exception e) {
- LOG.error("Unexpected error occurred", e);
- }
- }
-
- @Override
- public String toString() {
- return "Capturing";
- }
-
- }
-
private class Creating extends AbstractSnapshotState {
@Override
}
@Override
- public void persist(DataPersistenceProvider persistenceProvider, byte[] snapshotBytes,
- RaftActorBehavior currentBehavior, long totalMemory) {
+ public void persist(byte[] snapshotBytes, RaftActorBehavior currentBehavior, long totalMemory) {
// create a snapshot object from the state provided and save it
// when snapshot is saved async, SaveSnapshotSuccess is raised.
captureSnapshot.getLastIndex(), captureSnapshot.getLastTerm(),
captureSnapshot.getLastAppliedIndex(), captureSnapshot.getLastAppliedTerm());
- persistenceProvider.saveSnapshot(sn);
+ context.getPersistenceProvider().saveSnapshot(sn);
LOG.info("{}: Persisting of snapshot done:{}", persistenceId(), sn.getLogMessage());
private class Persisting extends AbstractSnapshotState {
@Override
- public void commit(DataPersistenceProvider persistenceProvider, long sequenceNumber) {
+ public void commit(long sequenceNumber) {
context.getReplicatedLog().snapshotCommit();
- persistenceProvider.deleteSnapshots(new SnapshotSelectionCriteria(
+ context.getPersistenceProvider().deleteSnapshots(new SnapshotSelectionCriteria(
sequenceNumber - context.getConfigParams().getSnapshotBatchCount(), 43200000));
- persistenceProvider.deleteMessages(lastSequenceNumber);
+ context.getPersistenceProvider().deleteMessages(lastSequenceNumber);
lastSequenceNumber = -1;
SnapshotManager.this.currentState = IDLE;