xBis7 commented on code in PR #3746: URL: https://github.com/apache/ozone/pull/3746#discussion_r984678277
########## hadoop-ozone/recon/src/main/java/org/apache/hadoop/ozone/recon/tasks/NSSummaryTaskWithLegacy.java: ########## @@ -0,0 +1,255 @@ +/* + * 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.utils.db.Table; +import org.apache.hadoop.hdds.utils.db.TableIterator; +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 javax.inject.Inject; +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 NSSummaryTaskUtils { + + private static final BucketLayout BUCKET_LAYOUT = BucketLayout.LEGACY; + + private static final Logger LOG = + LoggerFactory.getLogger(NSSummaryTaskWithLegacy.class); + + public NSSummaryTaskWithLegacy(ReconNamespaceSummaryManager + reconNamespaceSummaryManager, + ReconOMMetadataManager + reconOMMetadataManager) { + super(reconNamespaceSummaryManager, reconOMMetadataManager); + } + + 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(); + + 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()) { Review Comment: The only way I see doing that, is for each OmKeyInfo, get the bucketName and using that, get the bucket info from the bucket table and then check the layout. -- 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. 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