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HIVE-27746: Hive Metastore should send single AlterPartitionEvent wit…
…h list of partitions (apache#4820) (Zhihua Deng, reviewed by Sai Hemanth Gantasala, John Sherman, Henri Biestro)
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ql/src/java/org/apache/hadoop/hive/ql/parse/repl/dump/events/AlterPartitionsHandler.java
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| /* | ||
| * 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.hive.ql.parse.repl.dump.events; | ||
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| import java.util.ArrayList; | ||
| import java.util.List; | ||
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| import org.apache.hadoop.fs.Path; | ||
| import org.apache.hadoop.hive.conf.HiveConf; | ||
| import org.apache.hadoop.hive.metastore.api.NotificationEvent; | ||
| import org.apache.hadoop.hive.metastore.messaging.AlterPartitionsMessage; | ||
| import org.apache.hadoop.hive.ql.metadata.Partition; | ||
| import org.apache.hadoop.hive.ql.metadata.Table; | ||
| import org.apache.hadoop.hive.ql.parse.EximUtil; | ||
| import org.apache.hadoop.hive.ql.parse.repl.DumpType; | ||
| import org.apache.hadoop.hive.ql.parse.repl.dump.Utils; | ||
| import org.apache.hadoop.hive.ql.parse.repl.load.DumpMetaData; | ||
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|
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| public class AlterPartitionsHandler extends AbstractEventHandler<AlterPartitionsMessage> { | ||
| private final boolean isTruncateOp; | ||
| private final org.apache.hadoop.hive.metastore.api.Table tableObject; | ||
| private final Iterable<org.apache.hadoop.hive.metastore.api.Partition> partitions; | ||
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|
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| AlterPartitionsHandler(NotificationEvent event) throws Exception { | ||
| super(event); | ||
| AlterPartitionsMessage apm = eventMessage; | ||
| isTruncateOp = apm.getIsTruncateOp(); | ||
| tableObject = apm.getTableObj(); | ||
| partitions = apm.getPartitionObjs(); | ||
| } | ||
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| @Override | ||
| AlterPartitionsMessage eventMessage(String stringRepresentation) { | ||
| return deserializer.getAlterPartitionsMessage(stringRepresentation); | ||
| } | ||
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| @Override | ||
| public void handle(Context withinContext) throws Exception { | ||
| LOG.info("Processing#{} ALTER_PARTITIONS message : {}", fromEventId(), eventMessageAsJSON); | ||
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| // We do not dump partitions during metadata only bootstrap dump (See TableExport | ||
| // .getPartitions(), for bootstrap dump we pass tableSpec with TABLE_ONLY set.). So don't | ||
| // dump partition related events for metadata-only dump. | ||
| if (withinContext.hiveConf.getBoolVar(HiveConf.ConfVars.REPL_DUMP_METADATA_ONLY)) { | ||
| return; | ||
| } | ||
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| Table qlMdTable = new Table(tableObject); | ||
| if (!Utils.shouldReplicate(withinContext.replicationSpec, qlMdTable, true, | ||
| withinContext.getTablesForBootstrap(), withinContext.oldReplScope, withinContext.hiveConf)) { | ||
| return; | ||
| } | ||
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| if (!isTruncateOp) { | ||
| withinContext.replicationSpec.setIsMetadataOnly(true); | ||
| List<Partition> partitionObjs = new ArrayList<>(); | ||
| for (org.apache.hadoop.hive.metastore.api.Partition part : partitions) { | ||
| partitionObjs.add(new Partition(qlMdTable, part)); | ||
| } | ||
| Path metaDataPath = new Path(withinContext.eventRoot, EximUtil.METADATA_NAME); | ||
| EximUtil.createExportDump( | ||
| metaDataPath.getFileSystem(withinContext.hiveConf), | ||
| metaDataPath, | ||
| qlMdTable, | ||
| partitionObjs, | ||
| withinContext.replicationSpec, | ||
| withinContext.hiveConf); | ||
| } | ||
| DumpMetaData dmd = withinContext.createDmd(this); | ||
| dmd.setPayload(eventMessageAsJSON); | ||
| dmd.write(); | ||
| } | ||
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| @Override | ||
| public DumpType dumpType() { | ||
| return isTruncateOp ? DumpType.EVENT_TRUNCATE_PARTITION : DumpType.EVENT_ALTER_PARTITION; | ||
| } | ||
| } |
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