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From chenghao-intel <...@git.apache.org>
Subject [GitHub] spark pull request: [Spark-5068][SQL]Fix bug query data when path ...
Date Mon, 06 Apr 2015 01:32:14 GMT
Github user chenghao-intel commented on a diff in the pull request:

    https://github.com/apache/spark/pull/5059#discussion_r27782363
  
    --- Diff: sql/hive/src/main/scala/org/apache/spark/sql/hive/TableReader.scala ---
    @@ -142,7 +142,46 @@ 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
    +    def verifyPartitionPath(
    +        partitionToDeserializer: Map[HivePartition, Class[_ <: Deserializer]]):
    +        Map[HivePartition, Class[_ <: Deserializer]] = {
    +      if (!sc.getConf("spark.sql.hive.verifyPartitionPath", "true").toBoolean) {
    +        partitionToDeserializer
    +      } else {
    +        var existPathSet = collection.mutable.Set[String]()
    +        var pathPatternSet = collection.mutable.Set[String]()
    +        partitionToDeserializer.filter {
    +          case (partition, partDeserializer) =>
    +            def updateExistPathSetByPathPattern(pathPatternStr: String) {
    +              val pathPattern = new Path(pathPatternStr)
    +              val fs = pathPattern.getFileSystem(sc.hiveconf)
    +              val matches = fs.globStatus(pathPattern)
    +              matches.map(fileStatus => existPathSet += fileStatus.getPath.toString)
    +            }
    +            // convert  /demo/data/year/month/day  to  /demo/data/**/**/**/
    --- End diff --
    
    to `/demo/data/*/*/*/`?


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