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From "Yin Huai (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SPARK-3390) sqlContext.jsonRDD fails on a complex structure of array and hashmap nesting
Date Fri, 05 Sep 2014 00:54:23 GMT

    [ https://issues.apache.org/jira/browse/SPARK-3390?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14122235#comment-14122235
] 

Yin Huai commented on SPARK-3390:
---------------------------------

Oh, I see the problem. I am out of town this week. Will fix it next week.

> sqlContext.jsonRDD fails on a complex structure of array and hashmap nesting
> ----------------------------------------------------------------------------
>
>                 Key: SPARK-3390
>                 URL: https://issues.apache.org/jira/browse/SPARK-3390
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 1.0.2
>            Reporter: Vida Ha
>            Assignee: Yin Huai
>            Priority: Critical
>
> I found a valid JSON string, but which Spark SQL fails to correctly parse:
> Try running these lines in a spark-shell to reproduce:
> {code:borderStyle=solid}
> val sqlContext = new org.apache.spark.sql.SQLContext(sc)
> val badJson = "{\"foo\": [[{\"bar\": 0}]]}"
> val rdd = sc.parallelize(badJson :: Nil)
> sqlContext.jsonRDD(rdd).count()
> {code}
> I've tried running these lines on the 1.0.2 release as well latest Spark1.1 release candidate,
and I get this stack trace:
> {panel}
> org.apache.spark.SparkException: Job aborted due to stage failure: Task 2.0:3 failed
1 times, most recent failure: Exception failure in TID 7 on host localhost: scala.MatchError:
StructType(List()) (of class org.apache.spark.sql.catalyst.types.StructType)
>         org.apache.spark.sql.json.JsonRDD$.enforceCorrectType(JsonRDD.scala:333)
>         org.apache.spark.sql.json.JsonRDD$$anonfun$enforceCorrectType$1.apply(JsonRDD.scala:335)
>         scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:244)
>         scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:244)
>         scala.collection.mutable.ResizableArray$class.foreach(ResizableArray.scala:59)
>         scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:47)
>         scala.collection.TraversableLike$class.map(TraversableLike.scala:244)
>         scala.collection.AbstractTraversable.map(Traversable.scala:105)
>         org.apache.spark.sql.json.JsonRDD$.enforceCorrectType(JsonRDD.scala:335)
>         org.apache.spark.sql.json.JsonRDD$$anonfun$enforceCorrectType$1.apply(JsonRDD.scala:335)
>         scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:244)
>         scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:244)
>         scala.collection.mutable.ResizableArray$class.foreach(ResizableArray.scala:59)
>         scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:47)
>         scala.collection.TraversableLike$class.map(TraversableLike.scala:244)
>         scala.collection.AbstractTraversable.map(Traversable.scala:105)
>         org.apache.spark.sql.json.JsonRDD$.enforceCorrectType(JsonRDD.scala:335)
>         org.apache.spark.sql.json.JsonRDD$$anonfun$org$apache$spark$sql$json$JsonRDD$$asRow$1$$anonfun$apply$12.apply(JsonRDD.scala:365)
>         scala.Option.map(Option.scala:145)
>         org.apache.spark.sql.json.JsonRDD$$anonfun$org$apache$spark$sql$json$JsonRDD$$asRow$1.apply(JsonRDD.scala:364)
>         org.apache.spark.sql.json.JsonRDD$$anonfun$org$apache$spark$sql$json$JsonRDD$$asRow$1.apply(JsonRDD.scala:349)
>         scala.collection.mutable.ResizableArray$class.foreach(ResizableArray.scala:59)
>         scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:47)
>         org.apache.spark.sql.json.JsonRDD$.org$apache$spark$sql$json$JsonRDD$$asRow(JsonRDD.scala:349)
>         org.apache.spark.sql.json.JsonRDD$$anonfun$createLogicalPlan$1.apply(JsonRDD.scala:51)
>         org.apache.spark.sql.json.JsonRDD$$anonfun$createLogicalPlan$1.apply(JsonRDD.scala:51)
>         scala.collection.Iterator$$anon$11.next(Iterator.scala:328)
>         scala.collection.Iterator$$anon$11.next(Iterator.scala:328)
> ....
> {panel}



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