From 04c443cc039814d0e1f2ab2ec636ad00256d63fc Mon Sep 17 00:00:00 2001 From: lazyman Date: Tue, 17 Mar 2015 10:56:53 +0800 Subject: [PATCH] SPARK-5068: fix bug when partition path doesn't exists #2 --- .../apache/spark/sql/hive/TableReader.scala | 34 +++++++++- .../spark/sql/hive/QueryPartitionSuite.scala | 64 +++++++++++++++++++ 2 files changed, 97 insertions(+), 1 deletion(-) create mode 100644 sql/hive/src/test/scala/org/apache/spark/sql/hive/QueryPartitionSuite.scala diff --git a/sql/hive/src/main/scala/org/apache/spark/sql/hive/TableReader.scala b/sql/hive/src/main/scala/org/apache/spark/sql/hive/TableReader.scala index f22c9eaeedc7d..6963e7b6bc6d9 100644 --- a/sql/hive/src/main/scala/org/apache/spark/sql/hive/TableReader.scala +++ b/sql/hive/src/main/scala/org/apache/spark/sql/hive/TableReader.scala @@ -142,7 +142,39 @@ class HadoopTableReader( partitionToDeserializer: Map[HivePartition, Class[_ <: Deserializer]], filterOpt: Option[PathFilter]): RDD[Row] = { - val hivePartitionRDDs = partitionToDeserializer.map { case (partition, partDeserializer) => + // SPARK-5068:get FileStatus and do the filtering locally when the path is not exists + + var existPathSet =collection.mutable.Set[String]() + var pathPatternSet = collection.mutable.Set[String]() + + val hivePartitionRDDs = partitionToDeserializer.filter { + case (partition, partDeserializer) => + + def updateExistPathSetByPathPattern(pathPatternStr:String ){ + val pathPattern = new Path(pathPatternStr) + val fs = pathPattern.getFileSystem(sc.hiveconf) + val matchs = fs.globStatus(pathPattern); + matchs.map( fileStatus =>(existPathSet+= fileStatus.getPath.toString)) + } + // convert /demo/data/year/month/day to /demo/data/**/**/**/ + def getPathPatternByPath(parNum:Int,tpath:Path):String = { + var path = tpath + for (i <- (1 to parNum)) { path = path.getParent } + val tails = (1 to parNum).map(_ => "*").mkString("/","/","/") + path.toString + tails + } + + val partPath = HiveShim.getDataLocationPath(partition) + val partNum = Utilities.getPartitionDesc(partition).getPartSpec.size(); + var pathPatternStr = getPathPatternByPath(partNum,partPath) + if(!pathPatternSet.contains(pathPatternStr)){ + pathPatternSet+=pathPatternStr + updateExistPathSetByPathPattern(pathPatternStr) + } + existPathSet.contains(partPath.toString) + + } + .map { case (partition, partDeserializer) => val partDesc = Utilities.getPartitionDesc(partition) val partPath = HiveShim.getDataLocationPath(partition) val inputPathStr = applyFilterIfNeeded(partPath, filterOpt) diff --git a/sql/hive/src/test/scala/org/apache/spark/sql/hive/QueryPartitionSuite.scala b/sql/hive/src/test/scala/org/apache/spark/sql/hive/QueryPartitionSuite.scala new file mode 100644 index 0000000000000..8b90bfb19fde8 --- /dev/null +++ b/sql/hive/src/test/scala/org/apache/spark/sql/hive/QueryPartitionSuite.scala @@ -0,0 +1,64 @@ +/* + * 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.spark.sql.hive + +import java.io.File + +import com.google.common.io.Files +import org.apache.spark.sql.{QueryTest, _} +import org.apache.spark.sql.hive.test.TestHive +import org.apache.spark.util.Utils +/* Implicits */ +import org.apache.spark.sql.hive.test.TestHive._ + + + +class QueryPartitionSuite extends QueryTest { + import org.apache.spark.sql.hive.test.TestHive.implicits._ + + test("SPARK-5068: query data when path doesn't exists"){ + val testData = TestHive.sparkContext.parallelize( + (1 to 10).map(i => TestData(i, i.toString))).toDF() + testData.registerTempTable("testData") + + val tmpDir = Files.createTempDir() + //create the table for test + sql(s"CREATE TABLE table_with_partition(key int,value string) PARTITIONED by (ds string) location '${tmpDir.toURI.toString}' ") + sql("INSERT OVERWRITE TABLE table_with_partition partition (ds='1') SELECT key,value FROM testData") + sql("INSERT OVERWRITE TABLE table_with_partition partition (ds='2') SELECT key,value FROM testData") + sql("INSERT OVERWRITE TABLE table_with_partition partition (ds='3') SELECT key,value FROM testData") + sql("INSERT OVERWRITE TABLE table_with_partition partition (ds='4') SELECT key,value FROM testData") + + //test for the exist path + checkAnswer(sql("select key,value from table_with_partition"), + testData.toSchemaRDD.collect ++ testData.toSchemaRDD.collect + ++ testData.toSchemaRDD.collect ++ testData.toSchemaRDD.collect) + + //delect the path of one partition + val folders = tmpDir.listFiles.filter(_.isDirectory) + Utils.deleteRecursively(folders(0)) + + //test for affter delete the path + checkAnswer(sql("select key,value from table_with_partition"), + testData.toSchemaRDD.collect ++ testData.toSchemaRDD.collect + ++ testData.toSchemaRDD.collect) + + sql("DROP TABLE table_with_partition") + sql("DROP TABLE createAndInsertTest") + } +} \ No newline at end of file