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https://issues.apache.org/jira/browse/KYLIN-5141?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17475918#comment-17475918
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ASF GitHub Bot commented on KYLIN-5141:
---------------------------------------
zhangayqian commented on a change in pull request #1780:
URL: https://github.com/apache/kylin/pull/1780#discussion_r784476015
##########
File path:
source-hive/src/main/java/org/apache/kylin/source/hive/SparkHiveDictReplaceStep.java
##########
@@ -0,0 +1,125 @@
+/*
+ * 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.kylin.source.hive;
+
+import org.apache.commons.cli.Option;
+import org.apache.commons.cli.OptionBuilder;
+import org.apache.commons.cli.Options;
+import org.apache.kylin.common.KylinConfig;
+import org.apache.kylin.common.util.AbstractApplication;
+import org.apache.kylin.common.util.OptionsHelper;
+import org.apache.kylin.cube.CubeInstance;
+import org.apache.kylin.cube.CubeManager;
+import org.apache.kylin.cube.CubeSegment;
+import org.apache.kylin.engine.EngineFactory;
+import org.apache.kylin.engine.mr.common.AbstractHadoopJob;
+import org.apache.kylin.engine.mr.common.BatchConstants;
+import org.apache.kylin.engine.mr.common.SerializableConfiguration;
+import org.apache.kylin.metadata.model.IJoinedFlatTableDesc;
+import org.apache.spark.sql.SparkSession;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.Serializable;
+import java.util.Map;
+
+public class SparkHiveDictReplaceStep extends AbstractApplication implements
Serializable {
+
+ private static final Logger logger =
LoggerFactory.getLogger(SparkHiveDictReplaceStep.class);
+
+ public static final Option OPTION_CUBE_NAME =
OptionBuilder.withArgName(BatchConstants.ARG_CUBE_NAME).hasArg().isRequired(true).withDescription("Cube
Name").create(BatchConstants.ARG_CUBE_NAME);
+ public static final Option OPTION_META_URL =
OptionBuilder.withArgName("metaUrl").hasArg().isRequired(true).withDescription("Meta
Url").create("metaUrl");
+ public static final Option OPTION_SEGMENT_ID =
OptionBuilder.withArgName("segmentId").hasArg().isRequired(true).withDescription("Segment
Id").create("segmentId");
+ public static final Option OPTION_FLOW_JOB_ID =
OptionBuilder.withArgName("flowJobId").hasArg().isRequired(true).withDescription("Flow
Job Id").create("flowJobId");
+ public static final Option OPTION_WAREHOUSE_DIR =
OptionBuilder.withArgName("wareHouseDir").hasArg().isRequired(true).withDescription("WareHouse
Dir").create("wareHouseDir");
+ public static final Option OPTION_DICT_COLUMNS =
OptionBuilder.withArgName("dictColumns").hasArg().isRequired(true).withDescription("Dict
Columns").create("dictColumns");
+ public static final Option OPTION_GLOBAL_DICT_TABLE =
OptionBuilder.withArgName("globalDictTable").hasArg().isRequired(true).withDescription("Global
Dict Table").create("globalDictTable");
+ public static final Option OPTION_DICT_SUFFIX =
OptionBuilder.withArgName("dictSuffix").hasArg().isRequired(true).withDescription("Dict
Suffix").create("dictSuffix");
+
+ private String cubeName;
+ private String segmentId;
+ private String metaUrl;
+ private String wareHouseDir;
+ private String dictColumns;
+ private String globalDictTable;
+ private String dictSuffix;
+ private String flowJobId;
+
+ private Options options;
+
+ public SparkHiveDictReplaceStep() {
+ options = new Options();
+ options.addOption(OPTION_CUBE_NAME);
+ options.addOption(OPTION_DICT_COLUMNS);
+ options.addOption(OPTION_META_URL);
+ options.addOption(OPTION_SEGMENT_ID);
+ options.addOption(OPTION_FLOW_JOB_ID);
+ options.addOption(OPTION_WAREHOUSE_DIR);
+ options.addOption(OPTION_GLOBAL_DICT_TABLE);
+ options.addOption(OPTION_DICT_SUFFIX);
+ }
+
+ @Override
+ protected Options getOptions() {
+ return options;
+ }
+
+ @Override
+ protected void execute(OptionsHelper optionsHelper) throws Exception {
+ initParam(optionsHelper);
+
+ try {
+ SparkSession spark = SparkSession.builder().appName("Spark Hive
Global Dict").master("yarn").config("spark.sql.warehouse.dir",
wareHouseDir).enableHiveSupport().getOrCreate();
+
+ SerializableConfiguration sConf = new
SerializableConfiguration(spark.sparkContext().hadoopConfiguration());
+ KylinConfig envConfig =
AbstractHadoopJob.loadKylinConfigFromHdfs(sConf, metaUrl);
+
+ CubeInstance cubeInstance =
CubeManager.getInstance(envConfig).getCube(cubeName);
+ CubeSegment seg = cubeInstance.getSegmentById(segmentId);
+ IJoinedFlatTableDesc flatDesc =
EngineFactory.getJoinedFlatTableDesc(seg);
+
+ Map<String, String> dictRef =
seg.getConfig().getMrHiveDictRefColumns();
+ for (String dictColumn : dictColumns.split(",")) {
+ dictRef.put(dictColumn, "");
+ }
+
+ Map<String, String> replaceSqlMap =
MRHiveDictUtil.generateReplaceSql(flatDesc, dictRef,
seg.getConfig().getHiveDatabaseForIntermediateTable(),
seg.getConfig().getMrHiveDictDB(), globalDictTable, dictSuffix);
+ for (Map.Entry<String, String> entry : replaceSqlMap.entrySet()) {
+ logger.info("field:" + entry.getKey() + ":\n" +
entry.getValue());
+ String replaceSql = entry.getValue();
+ replaceSql = replaceSql.substring(0,
replaceSql.lastIndexOf(";"));
+ spark.sql(replaceSql);
+ }
+ } catch (Exception e) {
+ logger.error("", e);
Review comment:
Please improve this error reporting information.
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> hive global dict replace with spark
> -----------------------------------
>
> Key: KYLIN-5141
> URL: https://issues.apache.org/jira/browse/KYLIN-5141
> Project: Kylin
> Issue Type: New Feature
> Affects Versions: v3.1.1, v3.1.2, v3.1.3
> Reporter: fengpod
> Priority: Minor
> Attachments: image-2021-12-09-18-28-25-428.png
>
>
> use spark engine in build-hive-global-dict-replace-intermediate-table step
> !image-2021-12-09-18-28-25-428.png!
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