swamirishi commented on code in PR #7200: URL: https://github.com/apache/ozone/pull/7200#discussion_r1765850736
########## hadoop-ozone/ozone-manager/src/main/java/org/apache/hadoop/ozone/om/response/snapshot/OMSnapshotMoveTableKeysResponse.java: ########## @@ -0,0 +1,165 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + */ +package org.apache.hadoop.ozone.om.response.snapshot; + +import jakarta.annotation.Nonnull; +import org.apache.hadoop.hdds.protocol.proto.HddsProtos; +import org.apache.hadoop.hdds.utils.db.BatchOperation; +import org.apache.hadoop.hdds.utils.db.RDBStore; +import org.apache.hadoop.ozone.om.OMMetadataManager; +import org.apache.hadoop.ozone.om.OmMetadataManagerImpl; +import org.apache.hadoop.ozone.om.OmSnapshot; +import org.apache.hadoop.ozone.om.OmSnapshotManager; +import org.apache.hadoop.ozone.om.helpers.OmKeyInfo; +import org.apache.hadoop.ozone.om.helpers.RepeatedOmKeyInfo; +import org.apache.hadoop.ozone.om.helpers.SnapshotInfo; +import org.apache.hadoop.ozone.om.response.CleanupTableInfo; +import org.apache.hadoop.ozone.om.response.OMClientResponse; +import org.apache.hadoop.ozone.om.snapshot.ReferenceCounted; +import org.apache.hadoop.ozone.protocol.proto.OzoneManagerProtocolProtos.OMResponse; +import org.apache.hadoop.ozone.protocol.proto.OzoneManagerProtocolProtos.SnapshotMoveKeyInfos; + +import java.io.IOException; +import java.util.List; + +import static org.apache.hadoop.ozone.om.OmMetadataManagerImpl.SNAPSHOT_INFO_TABLE; +import static org.apache.hadoop.ozone.om.snapshot.SnapshotUtils.createMergedRepeatedOmKeyInfoFromDeletedTableEntry; + +/** + * Response for OMSnapshotMoveDeletedKeysRequest. + */ +@CleanupTableInfo(cleanupTables = {SNAPSHOT_INFO_TABLE}) +public class OMSnapshotMoveTableKeysResponse extends OMClientResponse { + + private SnapshotInfo fromSnapshot; + private SnapshotInfo nextSnapshot; + private List<SnapshotMoveKeyInfos> deletedKeys; + private List<HddsProtos.KeyValue> renamedKeysList; + private List<SnapshotMoveKeyInfos> deletedDirs; + + public OMSnapshotMoveTableKeysResponse(OMResponse omResponse, + @Nonnull SnapshotInfo fromSnapshot, SnapshotInfo nextSnapshot, + List<SnapshotMoveKeyInfos> deletedKeys, + List<SnapshotMoveKeyInfos> deletedDirs, + List<HddsProtos.KeyValue> renamedKeys) { + super(omResponse); + this.fromSnapshot = fromSnapshot; + this.nextSnapshot = nextSnapshot; + this.deletedKeys = deletedKeys; + this.renamedKeysList = renamedKeys; + this.deletedDirs = deletedDirs; + } + + /** + * For when the request is not successful. + * For a successful request, the other constructor should be used. + */ + public OMSnapshotMoveTableKeysResponse(@Nonnull OMResponse omResponse) { + super(omResponse); + checkStatusNotOK(); + } + + @Override + protected void addToDBBatch(OMMetadataManager omMetadataManager, BatchOperation batchOperation) throws IOException { + + // Note: a trick to get + // To do this properly, refactor OzoneManagerDoubleBuffer#addToBatch and + // add OmSnapshotManager as a parameter. + OmSnapshotManager omSnapshotManager = ((OmMetadataManagerImpl) omMetadataManager) + .getOzoneManager().getOmSnapshotManager(); + + try (ReferenceCounted<OmSnapshot> rcOmFromSnapshot = + omSnapshotManager.getSnapshot(fromSnapshot.getSnapshotId())) { + + OmSnapshot fromOmSnapshot = rcOmFromSnapshot.get(); + + if (nextSnapshot != null) { + try (ReferenceCounted<OmSnapshot> + rcOmNextSnapshot = omSnapshotManager.getSnapshot(nextSnapshot.getSnapshotId())) { + + OmSnapshot nextOmSnapshot = rcOmNextSnapshot.get(); + RDBStore nextSnapshotStore = (RDBStore) nextOmSnapshot.getMetadataManager().getStore(); + // Init Batch Operation for snapshot db. + try (BatchOperation writeBatch = nextSnapshotStore.initBatchOperation()) { + addKeysToNextSnapshot(writeBatch, nextOmSnapshot.getMetadataManager()); + nextSnapshotStore.commitBatchOperation(writeBatch); + nextSnapshotStore.getDb().flushWal(true); + nextSnapshotStore.getDb().flush(); + } + } + } else { + // Handle the case where there is no next Snapshot. + addKeysToNextSnapshot(batchOperation, omMetadataManager); + } + + // Update From Snapshot Deleted Table. + RDBStore fromSnapshotStore = (RDBStore) fromOmSnapshot.getMetadataManager().getStore(); + try (BatchOperation fromSnapshotBatchOp = fromSnapshotStore.initBatchOperation()) { + deleteKeysFromSnapshot(fromSnapshotBatchOp, fromOmSnapshot.getMetadataManager()); + fromSnapshotStore.commitBatchOperation(fromSnapshotBatchOp); + fromSnapshotStore.getDb().flushWal(true); + fromSnapshotStore.getDb().flush(); + } + } + + // Flush snapshot info to rocksDB. + omMetadataManager.getSnapshotInfoTable().putWithBatch(batchOperation, fromSnapshot.getTableKey(), fromSnapshot); + if (nextSnapshot != null) { + omMetadataManager.getSnapshotInfoTable().putWithBatch(batchOperation, nextSnapshot.getTableKey(), nextSnapshot); + } + } + + private void deleteKeysFromSnapshot(BatchOperation batchOp, OMMetadataManager fromSnapshotMetadataManager) + throws IOException { + for (SnapshotMoveKeyInfos deletedKey : deletedKeys) { + // Delete keys from current snapshot that are moved to next snapshot. + fromSnapshotMetadataManager.getDeletedTable().deleteWithBatch(batchOp, deletedKey.getKey()); + } + + // Delete renamed keys from current snapshot that are moved to next snapshot. + for (HddsProtos.KeyValue renamedKey: renamedKeysList) { + fromSnapshotMetadataManager.getSnapshotRenamedTable().deleteWithBatch(batchOp, renamedKey.getKey()); + } + + // Delete deletedDir from current snapshot that are moved to next snapshot. + for (SnapshotMoveKeyInfos deletedDir : deletedDirs) { + fromSnapshotMetadataManager.getDeletedDirTable().deleteWithBatch(batchOp, deletedDir.getKey()); + } + + } + + private void addKeysToNextSnapshot(BatchOperation batchOp, OMMetadataManager metadataManager) throws IOException { + + // Add renamed keys to the next snapshot or active DB. + for (HddsProtos.KeyValue renamedKey: renamedKeysList) { + metadataManager.getSnapshotRenamedTable().putWithBatch(batchOp, renamedKey.getKey(), renamedKey.getValue()); + } + // Add deleted keys to the next snapshot or active DB. + for (SnapshotMoveKeyInfos dBKey : deletedKeys) { Review Comment: done ########## hadoop-ozone/ozone-manager/src/main/java/org/apache/hadoop/ozone/om/response/snapshot/OMSnapshotMoveTableKeysResponse.java: ########## @@ -0,0 +1,165 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + */ +package org.apache.hadoop.ozone.om.response.snapshot; + +import jakarta.annotation.Nonnull; +import org.apache.hadoop.hdds.protocol.proto.HddsProtos; +import org.apache.hadoop.hdds.utils.db.BatchOperation; +import org.apache.hadoop.hdds.utils.db.RDBStore; +import org.apache.hadoop.ozone.om.OMMetadataManager; +import org.apache.hadoop.ozone.om.OmMetadataManagerImpl; +import org.apache.hadoop.ozone.om.OmSnapshot; +import org.apache.hadoop.ozone.om.OmSnapshotManager; +import org.apache.hadoop.ozone.om.helpers.OmKeyInfo; +import org.apache.hadoop.ozone.om.helpers.RepeatedOmKeyInfo; +import org.apache.hadoop.ozone.om.helpers.SnapshotInfo; +import org.apache.hadoop.ozone.om.response.CleanupTableInfo; +import org.apache.hadoop.ozone.om.response.OMClientResponse; +import org.apache.hadoop.ozone.om.snapshot.ReferenceCounted; +import org.apache.hadoop.ozone.protocol.proto.OzoneManagerProtocolProtos.OMResponse; +import org.apache.hadoop.ozone.protocol.proto.OzoneManagerProtocolProtos.SnapshotMoveKeyInfos; + +import java.io.IOException; +import java.util.List; + +import static org.apache.hadoop.ozone.om.OmMetadataManagerImpl.SNAPSHOT_INFO_TABLE; +import static org.apache.hadoop.ozone.om.snapshot.SnapshotUtils.createMergedRepeatedOmKeyInfoFromDeletedTableEntry; + +/** + * Response for OMSnapshotMoveDeletedKeysRequest. + */ +@CleanupTableInfo(cleanupTables = {SNAPSHOT_INFO_TABLE}) +public class OMSnapshotMoveTableKeysResponse extends OMClientResponse { + + private SnapshotInfo fromSnapshot; + private SnapshotInfo nextSnapshot; + private List<SnapshotMoveKeyInfos> deletedKeys; + private List<HddsProtos.KeyValue> renamedKeysList; + private List<SnapshotMoveKeyInfos> deletedDirs; + + public OMSnapshotMoveTableKeysResponse(OMResponse omResponse, + @Nonnull SnapshotInfo fromSnapshot, SnapshotInfo nextSnapshot, + List<SnapshotMoveKeyInfos> deletedKeys, + List<SnapshotMoveKeyInfos> deletedDirs, + List<HddsProtos.KeyValue> renamedKeys) { + super(omResponse); + this.fromSnapshot = fromSnapshot; + this.nextSnapshot = nextSnapshot; + this.deletedKeys = deletedKeys; + this.renamedKeysList = renamedKeys; + this.deletedDirs = deletedDirs; + } + + /** + * For when the request is not successful. + * For a successful request, the other constructor should be used. + */ + public OMSnapshotMoveTableKeysResponse(@Nonnull OMResponse omResponse) { + super(omResponse); + checkStatusNotOK(); + } + + @Override + protected void addToDBBatch(OMMetadataManager omMetadataManager, BatchOperation batchOperation) throws IOException { + + // Note: a trick to get + // To do this properly, refactor OzoneManagerDoubleBuffer#addToBatch and + // add OmSnapshotManager as a parameter. + OmSnapshotManager omSnapshotManager = ((OmMetadataManagerImpl) omMetadataManager) + .getOzoneManager().getOmSnapshotManager(); + + try (ReferenceCounted<OmSnapshot> rcOmFromSnapshot = + omSnapshotManager.getSnapshot(fromSnapshot.getSnapshotId())) { + + OmSnapshot fromOmSnapshot = rcOmFromSnapshot.get(); + + if (nextSnapshot != null) { + try (ReferenceCounted<OmSnapshot> + rcOmNextSnapshot = omSnapshotManager.getSnapshot(nextSnapshot.getSnapshotId())) { + + OmSnapshot nextOmSnapshot = rcOmNextSnapshot.get(); + RDBStore nextSnapshotStore = (RDBStore) nextOmSnapshot.getMetadataManager().getStore(); + // Init Batch Operation for snapshot db. + try (BatchOperation writeBatch = nextSnapshotStore.initBatchOperation()) { + addKeysToNextSnapshot(writeBatch, nextOmSnapshot.getMetadataManager()); + nextSnapshotStore.commitBatchOperation(writeBatch); + nextSnapshotStore.getDb().flushWal(true); + nextSnapshotStore.getDb().flush(); + } + } + } else { + // Handle the case where there is no next Snapshot. + addKeysToNextSnapshot(batchOperation, omMetadataManager); + } + + // Update From Snapshot Deleted Table. + RDBStore fromSnapshotStore = (RDBStore) fromOmSnapshot.getMetadataManager().getStore(); + try (BatchOperation fromSnapshotBatchOp = fromSnapshotStore.initBatchOperation()) { + deleteKeysFromSnapshot(fromSnapshotBatchOp, fromOmSnapshot.getMetadataManager()); + fromSnapshotStore.commitBatchOperation(fromSnapshotBatchOp); + fromSnapshotStore.getDb().flushWal(true); + fromSnapshotStore.getDb().flush(); + } + } + + // Flush snapshot info to rocksDB. + omMetadataManager.getSnapshotInfoTable().putWithBatch(batchOperation, fromSnapshot.getTableKey(), fromSnapshot); + if (nextSnapshot != null) { + omMetadataManager.getSnapshotInfoTable().putWithBatch(batchOperation, nextSnapshot.getTableKey(), nextSnapshot); + } + } + + private void deleteKeysFromSnapshot(BatchOperation batchOp, OMMetadataManager fromSnapshotMetadataManager) + throws IOException { + for (SnapshotMoveKeyInfos deletedKey : deletedKeys) { + // Delete keys from current snapshot that are moved to next snapshot. + fromSnapshotMetadataManager.getDeletedTable().deleteWithBatch(batchOp, deletedKey.getKey()); + } + + // Delete renamed keys from current snapshot that are moved to next snapshot. + for (HddsProtos.KeyValue renamedKey: renamedKeysList) { + fromSnapshotMetadataManager.getSnapshotRenamedTable().deleteWithBatch(batchOp, renamedKey.getKey()); + } + + // Delete deletedDir from current snapshot that are moved to next snapshot. + for (SnapshotMoveKeyInfos deletedDir : deletedDirs) { + fromSnapshotMetadataManager.getDeletedDirTable().deleteWithBatch(batchOp, deletedDir.getKey()); + } + + } + + private void addKeysToNextSnapshot(BatchOperation batchOp, OMMetadataManager metadataManager) throws IOException { + + // Add renamed keys to the next snapshot or active DB. + for (HddsProtos.KeyValue renamedKey: renamedKeysList) { Review Comment: done -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
