GeorgeJahad commented on code in PR #3746: URL: https://github.com/apache/ozone/pull/3746#discussion_r988410895
########## hadoop-ozone/recon/src/main/java/org/apache/hadoop/ozone/recon/tasks/NSSummaryTaskWithLegacy.java: ########## @@ -0,0 +1,309 @@ +/* + * 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 + * <p> + * http://www.apache.org/licenses/LICENSE-2.0 + * <p> + * 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.recon.tasks; +import org.apache.hadoop.hdds.conf.OzoneConfiguration; +import org.apache.hadoop.hdds.utils.db.Table; +import org.apache.hadoop.hdds.utils.db.TableIterator; +import org.apache.hadoop.ozone.om.OMConfigKeys; +import org.apache.hadoop.ozone.om.OMMetadataManager; +import org.apache.hadoop.ozone.om.helpers.OmDirectoryInfo; +import org.apache.hadoop.ozone.om.helpers.OmKeyInfo; +import org.apache.hadoop.ozone.om.helpers.OmBucketInfo; +import org.apache.hadoop.ozone.om.helpers.BucketLayout; +import org.apache.hadoop.ozone.om.helpers.WithParentObjectId; +import org.apache.hadoop.ozone.recon.api.types.NSSummary; +import org.apache.hadoop.ozone.recon.recovery.ReconOMMetadataManager; +import org.apache.hadoop.ozone.recon.spi.ReconNamespaceSummaryManager; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import java.io.IOException; +import java.util.Arrays; +import java.util.HashMap; +import java.util.Iterator; +import java.util.Map; + +import static org.apache.hadoop.ozone.OzoneConsts.OM_KEY_PREFIX; +import static org.apache.hadoop.ozone.om.OmMetadataManagerImpl.KEY_TABLE; + +/** + * Class for handling Legacy specific tasks. + */ +public class NSSummaryTaskWithLegacy extends NSSummaryTaskDbEventHandler { + + private static final BucketLayout BUCKET_LAYOUT = BucketLayout.LEGACY; + + private static final Logger LOG = + LoggerFactory.getLogger(NSSummaryTaskWithLegacy.class); + + private OzoneConfiguration ozoneConfiguration; + + public NSSummaryTaskWithLegacy(ReconNamespaceSummaryManager + reconNamespaceSummaryManager, + ReconOMMetadataManager + reconOMMetadataManager, + OzoneConfiguration + ozoneConfiguration) { + super(reconNamespaceSummaryManager, reconOMMetadataManager); + this.ozoneConfiguration = ozoneConfiguration; + } + + public boolean processWithLegacy(OMUpdateEventBatch events) { + Iterator<OMDBUpdateEvent> eventIterator = events.getIterator(); + Map<Long, NSSummary> nsSummaryMap = new HashMap<>(); + + while (eventIterator.hasNext()) { + OMDBUpdateEvent<String, ? extends + WithParentObjectId> omdbUpdateEvent = eventIterator.next(); + OMDBUpdateEvent.OMDBUpdateAction action = omdbUpdateEvent.getAction(); + + // we only process updates on OM's KeyTable + String table = omdbUpdateEvent.getTable(); + boolean updateOnKeyTable = table.equals(KEY_TABLE); + if (!updateOnKeyTable) { + continue; + } + + String updatedKey = omdbUpdateEvent.getKey(); + + try { + OMDBUpdateEvent<String, OmKeyInfo> keyTableUpdateEvent = + (OMDBUpdateEvent<String, OmKeyInfo>) omdbUpdateEvent; + OmKeyInfo updatedKeyInfo = keyTableUpdateEvent.getValue(); + OmKeyInfo oldKeyInfo = keyTableUpdateEvent.getOldValue(); + + // KeyTable entries belong to both Legacy and OBS buckets. + // Check bucket layout and if it's OBS + // continue to the next iteration. + // Check just for the current KeyInfo. + String volumeName = updatedKeyInfo.getVolumeName(); + String bucketName = updatedKeyInfo.getBucketName(); + String bucketDBKey = getReconOMMetadataManager() + .getBucketKey(volumeName, bucketName); + // Get bucket info from bucket table + OmBucketInfo omBucketInfo = getReconOMMetadataManager() + .getBucketTable().getSkipCache(bucketDBKey); + // True if FileSystemPaths enabled + boolean enableFileSystemPaths = + ozoneConfiguration.get(OMConfigKeys + .OZONE_OM_ENABLE_FILESYSTEM_PATHS).equals("true"); + + if (omBucketInfo.getBucketLayout() + .isObjectStore(enableFileSystemPaths)) { + continue; + } + + setKeyParentID(updatedKeyInfo); + + if (!updatedKeyInfo.getKeyName().endsWith(OM_KEY_PREFIX)) { + switch (action) { + case PUT: + handlePutKeyEvent(updatedKeyInfo, nsSummaryMap); + break; + + case DELETE: + handleDeleteKeyEvent(updatedKeyInfo, nsSummaryMap); + break; + + case UPDATE: + if (oldKeyInfo != null) { + // delete first, then put + setKeyParentID(oldKeyInfo); + handleDeleteKeyEvent(oldKeyInfo, nsSummaryMap); + } else { + LOG.warn("Update event does not have the old keyInfo for {}.", + updatedKey); + } + handlePutKeyEvent(updatedKeyInfo, nsSummaryMap); + break; + + default: + LOG.debug("Skipping DB update event : {}", + omdbUpdateEvent.getAction()); + } + } else { + OmDirectoryInfo updatedDirectoryInfo = + new OmDirectoryInfo.Builder() + .setName(updatedKeyInfo.getKeyName()) + .setObjectID(updatedKeyInfo.getObjectID()) + .setParentObjectID(updatedKeyInfo.getParentObjectID()) + .build(); + + OmDirectoryInfo oldDirectoryInfo = null; + + if (oldKeyInfo != null) { + oldDirectoryInfo = + new OmDirectoryInfo.Builder() + .setName(oldKeyInfo.getKeyName()) + .setObjectID(oldKeyInfo.getObjectID()) + .setParentObjectID(oldKeyInfo.getParentObjectID()) + .build(); + } + + switch (action) { + case PUT: + handlePutDirEvent(updatedDirectoryInfo, nsSummaryMap); + break; + + case DELETE: + handleDeleteDirEvent(updatedDirectoryInfo, nsSummaryMap); + break; + + case UPDATE: + if (oldDirectoryInfo != null) { + // delete first, then put + handleDeleteDirEvent(oldDirectoryInfo, nsSummaryMap); + } else { + LOG.warn("Update event does not have the old dirInfo for {}.", + updatedKey); + } + handlePutDirEvent(updatedDirectoryInfo, nsSummaryMap); + break; + + default: + LOG.debug("Skipping DB update event : {}", + omdbUpdateEvent.getAction()); + } + } + } catch (IOException ioEx) { + LOG.error("Unable to process Namespace Summary data in Recon DB. ", + ioEx); + return false; + } + } + + try { + writeNSSummariesToDB(nsSummaryMap); + } catch (IOException e) { + LOG.error("Unable to write Namespace Summary data in Recon DB.", e); + return false; + } + + LOG.info("Completed a process run of NSSummaryTaskWithLegacy"); + return true; + } + + public boolean reprocessWithLegacy(OMMetadataManager omMetadataManager) { + Map<Long, NSSummary> nsSummaryMap = new HashMap<>(); + + try { + Table<String, OmKeyInfo> keyTable = + omMetadataManager.getKeyTable(BUCKET_LAYOUT); + + try (TableIterator<String, ? extends Table.KeyValue<String, OmKeyInfo>> + keyTableIter = keyTable.iterator()) { + + while (keyTableIter.hasNext()) { + Table.KeyValue<String, OmKeyInfo> kv = keyTableIter.next(); + OmKeyInfo keyInfo = kv.getValue(); + + // KeyTable entries belong to both Legacy and OBS buckets. + // Check bucket layout and if it's OBS + // continue to the next iteration. + String volumeName = keyInfo.getVolumeName(); + String bucketName = keyInfo.getBucketName(); + String bucketDBKey = omMetadataManager + .getBucketKey(volumeName, bucketName); + // Get bucket info from bucket table + OmBucketInfo omBucketInfo = omMetadataManager + .getBucketTable().getSkipCache(bucketDBKey); + // True if FileSystemPaths enabled + boolean enableFileSystemPaths = Review Comment: same as above -- This is an automated message from the Apache Git Service. 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