| /* |
| * 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; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.hdfs.MiniDFSCluster; |
| import org.apache.hadoop.hive.conf.HiveConf; |
| import org.apache.hadoop.hive.shims.Utils; |
| import org.junit.AfterClass; |
| import org.junit.Before; |
| import org.junit.BeforeClass; |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.junit.rules.TestName; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| import org.apache.hadoop.fs.FileSystem; |
| import org.apache.hadoop.fs.Path; |
| import java.io.IOException; |
| import java.util.HashMap; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertTrue; |
| |
| public class TestExportImport { |
| |
| protected static final Logger LOG = LoggerFactory.getLogger(TestExportImport.class); |
| private static WarehouseInstance srcHiveWarehouse; |
| private static WarehouseInstance destHiveWarehouse; |
| private static WarehouseInstance dumpExternalWarehouse; |
| |
| @Rule |
| public final TestName testName = new TestName(); |
| private String dbName; |
| private String replDbName; |
| |
| @BeforeClass |
| public static void classLevelSetup() throws Exception { |
| Configuration conf = new Configuration(); |
| conf.set("dfs.client.use.datanode.hostname", "true"); |
| conf.set("hadoop.proxyuser." + Utils.getUGI().getShortUserName() + ".hosts", "*"); |
| conf.set("hive.repl.include.external.tables", "false"); |
| conf.set(HiveConf.ConfVars.REPL_RUN_DATA_COPY_TASKS_ON_TARGET.varname, "false"); |
| MiniDFSCluster miniDFSCluster = |
| new MiniDFSCluster.Builder(conf).numDataNodes(1).format(true).build(); |
| HashMap<String, String> overridesForHiveConf = new HashMap<String, String>() {{ |
| put(HiveConf.ConfVars.HIVE_IN_TEST.varname, "true"); |
| }}; |
| HashMap<String, String> overridesForHiveConfDump = new HashMap<String, String>() {{ |
| put(HiveConf.ConfVars.HIVE_IN_TEST.varname, "false"); |
| put(HiveConf.ConfVars.REPL_INCLUDE_EXTERNAL_TABLES.varname, "true"); |
| }}; |
| srcHiveWarehouse = |
| new WarehouseInstance(LOG, miniDFSCluster, overridesForHiveConf); |
| destHiveWarehouse = new WarehouseInstance(LOG, miniDFSCluster, overridesForHiveConf); |
| dumpExternalWarehouse = |
| new WarehouseInstance(LOG, miniDFSCluster, overridesForHiveConfDump); |
| } |
| |
| @AfterClass |
| public static void classLevelTearDown() throws IOException { |
| srcHiveWarehouse.close(); |
| destHiveWarehouse.close(); |
| } |
| |
| @Before |
| public void setup() throws Throwable { |
| dbName = testName.getMethodName() + "_" + +System.currentTimeMillis(); |
| replDbName = dbName + "_dupe"; |
| srcHiveWarehouse.run("create database " + dbName); |
| destHiveWarehouse.run("create database " + replDbName); |
| } |
| |
| @Test |
| public void shouldExportImportATemporaryTable() throws Throwable { |
| String path = "hdfs:///tmp/" + dbName + "/"; |
| String exportPath = "'" + path + "'"; |
| String importDataPath = path + "/data"; |
| srcHiveWarehouse |
| .run("use " + dbName) |
| .run("create temporary table t1 (i int)") |
| .run("insert into table t1 values (1),(2)") |
| .run("export table t1 to " + exportPath) |
| .run("create temporary table t2 like t1") |
| .run("load data inpath '" + importDataPath + "' overwrite into table t2") |
| .run("select * from t2") |
| .verifyResults(new String[] { "1", "2" }); |
| } |
| |
| @Test |
| public void dataImportAfterMetadataOnlyImport() throws Throwable { |
| String path = "hdfs:///tmp/" + dbName + "/"; |
| String exportMDPath = "'" + path + "1/'"; |
| String exportDataPath = "'" + path + "2/'"; |
| srcHiveWarehouse.run("create table " + dbName + ".t1 (i int)") |
| .run("insert into table " + dbName + ".t1 values (1),(2)") |
| .run("export table " + dbName + ".t1 to " + exportMDPath + " for metadata replication('1')") |
| .run("export table " + dbName + ".t1 to " + exportDataPath + " for replication('2')"); |
| |
| destHiveWarehouse.run("import table " + replDbName + ".t1 from " + exportMDPath) |
| .run("import table " + replDbName + ".t1 from " + exportDataPath) |
| .run("select * from " + replDbName + ".t1") |
| .verifyResults(new String[] { "1", "2" }); |
| } |
| |
| @Test |
| public void testExportExternalTableSetFalse() throws Throwable { |
| String path = "hdfs:///tmp/" + dbName + "/"; |
| String exportMDPath = "'" + path + "1/'"; |
| String exportDataPath = "'" + path + "2/'"; |
| String exportDataPathRepl = "'" + path + "3/'"; |
| srcHiveWarehouse.run("create external table " + dbName + ".t1 (i int)") |
| .run("insert into table " + dbName + ".t1 values (1),(2)") |
| .run("export table " + dbName + ".t1 to " + exportMDPath + " for metadata replication('1')") |
| .run("export table " + dbName + ".t1 to " + exportDataPath) |
| .runFailure("export table " + dbName + ".t1 to " + exportDataPathRepl + " for replication('2')"); |
| |
| destHiveWarehouse.run("use " + replDbName) |
| .run("import table " + replDbName + ".t1 from " + exportMDPath) |
| .run("show tables like 't1'") |
| .verifyResult("t1") |
| .run("import table " + replDbName + ".t2 from " + exportDataPath) |
| .run("select * from " + replDbName + ".t2") |
| .verifyResults(new String[] {"1", "2" }) |
| .runFailure("import table " + replDbName + ".t3 from " + exportDataPathRepl) |
| .run("show tables like 't3'") |
| .verifyFailure(new String[] {"t3"}); |
| } |
| |
| @Test |
| public void testExportExternalTableSetTrue() throws Throwable { |
| String path = "hdfs:///tmp/" + dbName + "/"; |
| String exportMDPath = "'" + path + "1/'"; |
| String exportDataPath = "'" + path + "2/'"; |
| String exportDataPathRepl = "'" + path + "3/'"; |
| dumpExternalWarehouse.run("create external table " + dbName + ".t1 (i int)") |
| .run("insert into table " + dbName + ".t1 values (1),(2)") |
| .run("export table " + dbName + ".t1 to " + exportDataPathRepl + " for replication('2')") |
| .run("export table " + dbName + ".t1 to " + exportMDPath + " for metadata replication('1')") |
| .run("export table " + dbName + ".t1 to " + exportDataPath); |
| |
| destHiveWarehouse.run("use " + replDbName) |
| .run("import table " + replDbName + ".t1 from " + exportMDPath) |
| .run("show tables like 't1'") |
| .verifyResult("t1") |
| .run("import table " + replDbName + ".t2 from " + exportDataPath) |
| .run("select * from " + replDbName + ".t2") |
| .verifyResults(new String[] {"1", "2" }) |
| .run("import table " + replDbName + ".t3 from " + exportDataPathRepl) |
| .run("select * from " + replDbName + ".t3") |
| .verifyResults(new String[] {"1", "2" }); |
| } |
| |
| @Test |
| public void databaseTheTableIsImportedIntoShouldBeParsedFromCommandLine() throws Throwable { |
| String path = "hdfs:///tmp/" + dbName + "/"; |
| String exportPath = "'" + path + "1/'"; |
| |
| srcHiveWarehouse.run("create table " + dbName + ".t1 (i int)") |
| .run("insert into table " + dbName + ".t1 values (1),(2)") |
| .run("export table " + dbName + ".t1 to " + exportPath); |
| |
| destHiveWarehouse.run("create database test1") |
| .run("use default") |
| .run("import table test1.t1 from " + exportPath) |
| .run("select * from test1.t1") |
| .verifyResults(new String[] { "1", "2" }); |
| |
| } |
| |
| @Test |
| public void testExportNonNativeTable() throws Throwable { |
| String path = "hdfs:///tmp/" + dbName + "/"; |
| String exportPath = path + "1/"; |
| String exportMetaPath = exportPath + "/Meta"; |
| String tableName = testName.getMethodName(); |
| String createTableQuery = |
| "CREATE TABLE " + tableName + " ( serde_id bigint COMMENT 'from deserializer', name string " |
| + "COMMENT 'from deserializer', slib string COMMENT 'from deserializer') " |
| + "ROW FORMAT SERDE 'org.apache.hive.storage.jdbc.JdbcSerDe' " |
| + "STORED BY 'org.apache.hive.storage.jdbc.JdbcStorageHandler' " |
| + "WITH SERDEPROPERTIES ('serialization.format'='1') " |
| + "TBLPROPERTIES ( " |
| + "'hive.sql.database.type'='METASTORE', " |
| + "'hive.sql.query'='SELECT \"SERDE_ID\", \"NAME\", \"SLIB\" FROM \"SERDES\"')"; |
| |
| srcHiveWarehouse.run("use " + dbName) |
| .run(createTableQuery) |
| .runFailure("export table " + tableName + " to '" + exportPath + "'") |
| .run("export table " + tableName + " to '" + exportMetaPath + "'" + " for metadata replication('1')"); |
| |
| destHiveWarehouse.run("use " + replDbName) |
| .runFailure("import table " + tableName + " from '" + exportPath + "'") |
| .run("show tables") |
| .verifyFailure(new String[] {tableName}) |
| .run("import table " + tableName + " from '" + exportMetaPath + "'") |
| .run("show tables") |
| .verifyResult(tableName); |
| |
| // check physical path |
| Path checkPath = new Path(exportPath); |
| checkPath = new Path(checkPath, EximUtil.DATA_PATH_NAME); |
| FileSystem fs = checkPath.getFileSystem(srcHiveWarehouse.hiveConf); |
| assertFalse(fs.exists(checkPath)); |
| checkPath = new Path(exportMetaPath); |
| checkPath = new Path(checkPath, EximUtil.METADATA_NAME); |
| assertTrue(fs.exists(checkPath)); |
| } |
| } |