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%2FShardRecoveryCoordinator.java;h=a916ea6dead760219d536e0061ac01c35c99a879;hp=7e547d7257dc495dc34a796d1c7b7a0944cb0e76;hb=0acbc10a6c37b6faeaa4ce67701d90f18aa89bde;hpb=a681e6bec3bbd7b536302ee9e083ae04b7f5ebdd diff --git a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/ShardRecoveryCoordinator.java b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/ShardRecoveryCoordinator.java index 7e547d7257..a916ea6dea 100644 --- a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/ShardRecoveryCoordinator.java +++ b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/ShardRecoveryCoordinator.java @@ -7,19 +7,17 @@ */ package org.opendaylight.controller.cluster.datastore; -import com.google.common.collect.Lists; +import com.google.common.base.Preconditions; +import com.google.common.base.Throwables; +import java.io.File; import java.io.IOException; -import java.util.List; -import org.opendaylight.controller.cluster.datastore.modification.ModificationPayload; -import org.opendaylight.controller.cluster.datastore.modification.MutableCompositeModification; -import org.opendaylight.controller.cluster.datastore.utils.SerializationUtils; -import org.opendaylight.controller.cluster.raft.protobuff.client.messages.CompositeModificationByteStringPayload; -import org.opendaylight.controller.cluster.raft.protobuff.client.messages.CompositeModificationPayload; +import org.opendaylight.controller.cluster.datastore.persisted.ShardDataTreeSnapshot; +import org.opendaylight.controller.cluster.datastore.persisted.ShardSnapshotState; +import org.opendaylight.controller.cluster.datastore.utils.NormalizedNodeXMLOutput; +import org.opendaylight.controller.cluster.raft.RaftActorRecoveryCohort; +import org.opendaylight.controller.cluster.raft.persisted.Snapshot; +import org.opendaylight.controller.cluster.raft.persisted.Snapshot.State; import org.opendaylight.controller.cluster.raft.protobuff.client.messages.Payload; -import org.opendaylight.controller.md.sal.dom.store.impl.InMemoryDOMDataStore; -import org.opendaylight.controller.sal.core.spi.data.DOMStoreThreePhaseCommitCohort; -import org.opendaylight.controller.sal.core.spi.data.DOMStoreWriteTransaction; -import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier; import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode; import org.slf4j.Logger; @@ -30,90 +28,99 @@ import org.slf4j.Logger; * committed to the data store in the order the corresponding snapshot or log batch are received * to preserve data store integrity. * - * @author Thomas Panetelis + * @author Thomas Pantelis */ -class ShardRecoveryCoordinator { - - private final InMemoryDOMDataStore store; - private List currentLogRecoveryBatch; +class ShardRecoveryCoordinator implements RaftActorRecoveryCohort { + private final ShardDataTree store; private final String shardName; private final Logger log; + private final Snapshot restoreFromSnapshot; - ShardRecoveryCoordinator(InMemoryDOMDataStore store, String shardName, Logger log) { - this.store = store; - this.shardName = shardName; - this.log = log; - } + private boolean open; - void startLogRecoveryBatch(int maxBatchSize) { - currentLogRecoveryBatch = Lists.newArrayListWithCapacity(maxBatchSize); + ShardRecoveryCoordinator(final ShardDataTree store, final Snapshot restoreFromSnapshot, final String shardName, + final Logger log) { + this.store = Preconditions.checkNotNull(store); + this.shardName = Preconditions.checkNotNull(shardName); + this.log = Preconditions.checkNotNull(log); - log.debug("{}: starting log recovery batch with max size {}", shardName, maxBatchSize); + this.restoreFromSnapshot = restoreFromSnapshot; } - void appendRecoveredLogPayload(Payload payload) { - try { - if(payload instanceof ModificationPayload) { - currentLogRecoveryBatch.add((ModificationPayload) payload); - } else if (payload instanceof CompositeModificationPayload) { - currentLogRecoveryBatch.add(new ModificationPayload(MutableCompositeModification.fromSerializable( - ((CompositeModificationPayload) payload).getModification()))); - } else if (payload instanceof CompositeModificationByteStringPayload) { - currentLogRecoveryBatch.add(new ModificationPayload(MutableCompositeModification.fromSerializable( - ((CompositeModificationByteStringPayload) payload).getModification()))); - } else { - log.error("{}: Unknown payload {} received during recovery", shardName, payload); - } - } catch (IOException e) { - log.error("{}: Error extracting ModificationPayload", shardName, e); - } - + @Override + public void startLogRecoveryBatch(final int maxBatchSize) { + log.debug("{}: starting log recovery batch with max size {}", shardName, maxBatchSize); + open = true; } - private void commitTransaction(DOMStoreWriteTransaction transaction) { - DOMStoreThreePhaseCommitCohort commitCohort = transaction.ready(); + @Override + @SuppressWarnings("checkstyle:IllegalCatch") + public void appendRecoveredLogEntry(final Payload payload) { + Preconditions.checkState(open, "call startLogRecovery before calling appendRecoveredLogEntry"); + try { - commitCohort.preCommit().get(); - commitCohort.commit().get(); + store.applyRecoveryPayload(payload); } catch (Exception e) { - log.error("{}: Failed to commit Tx on recovery", shardName, e); + log.error("{}: failed to apply payload {}", shardName, payload, e); + throw new IllegalStateException(String.format("%s: Failed to apply recovery payload %s", + shardName, payload), e); } } /** * Applies the current batched log entries to the data store. */ - void applyCurrentLogRecoveryBatch() { - log.debug("{}: Applying current log recovery batch with size {}", shardName, currentLogRecoveryBatch.size()); - - DOMStoreWriteTransaction writeTx = store.newWriteOnlyTransaction(); - for(ModificationPayload payload: currentLogRecoveryBatch) { - try { - MutableCompositeModification.fromSerializable(payload.getModification()).apply(writeTx); - } catch (Exception e) { - log.error("{}: Error extracting ModificationPayload", shardName, e); - } - } - - commitTransaction(writeTx); + @Override + public void applyCurrentLogRecoveryBatch() { + Preconditions.checkState(open, "call startLogRecovery before calling applyCurrentLogRecoveryBatch"); + open = false; + } - currentLogRecoveryBatch = null; + private File writeRoot(final String kind, final NormalizedNode node) { + final File file = new File(System.getProperty("karaf.data", "."), + "failed-recovery-" + kind + "-" + shardName + ".xml"); + NormalizedNodeXMLOutput.toFile(file, node); + return file; } /** * Applies a recovered snapshot to the data store. * - * @param snapshotBytes the serialized snapshot + * @param snapshotState the serialized snapshot */ - void applyRecoveredSnapshot(final byte[] snapshotBytes) { - log.debug("{}: Applyng recovered sbapshot", shardName); + @Override + @SuppressWarnings("checkstyle:IllegalCatch") + public void applyRecoverySnapshot(final Snapshot.State snapshotState) { + if (!(snapshotState instanceof ShardSnapshotState)) { + log.debug("{}: applyRecoverySnapshot ignoring snapshot: {}", snapshotState); + } - DOMStoreWriteTransaction writeTx = store.newWriteOnlyTransaction(); + log.debug("{}: Applying recovered snapshot", shardName); - NormalizedNode node = SerializationUtils.deserializeNormalizedNode(snapshotBytes); + ShardDataTreeSnapshot shardSnapshot = ((ShardSnapshotState)snapshotState).getSnapshot(); + try { + store.applyRecoverySnapshot(shardSnapshot); + } catch (Exception e) { + final File f = writeRoot("snapshot", shardSnapshot.getRootNode().orElse(null)); + throw new IllegalStateException(String.format( + "%s: Failed to apply recovery snapshot %s. Node data was written to file %s", + shardName, shardSnapshot, f), e); + } + } - writeTx.write(YangInstanceIdentifier.builder().build(), node); + @Override + public Snapshot getRestoreFromSnapshot() { + return restoreFromSnapshot; + } - commitTransaction(writeTx); + @Override + @Deprecated + public State deserializePreCarbonSnapshot(final byte[] from) { + try { + return new ShardSnapshotState(ShardDataTreeSnapshot.deserializePreCarbon(from)); + } catch (IOException e) { + log.error("{}: failed to deserialize snapshot", shardName, e); + throw Throwables.propagate(e); + } } }