Return-Path: X-Original-To: apmail-spark-issues-archive@minotaur.apache.org Delivered-To: apmail-spark-issues-archive@minotaur.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 22E4318895 for ; Fri, 2 Oct 2015 21:34:28 +0000 (UTC) Received: (qmail 93476 invoked by uid 500); 2 Oct 2015 21:34:27 -0000 Delivered-To: apmail-spark-issues-archive@spark.apache.org Received: (qmail 93316 invoked by uid 500); 2 Oct 2015 21:34:27 -0000 Mailing-List: contact issues-help@spark.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Delivered-To: mailing list issues@spark.apache.org Received: (qmail 93185 invoked by uid 99); 2 Oct 2015 21:34:27 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 02 Oct 2015 21:34:27 +0000 Date: Fri, 2 Oct 2015 21:34:27 +0000 (UTC) From: "Sean Owen (JIRA)" To: issues@spark.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (SPARK-10798) JsonMappingException with Spark Context Parallelize MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 [ https://issues.apache.org/jira/browse/SPARK-10798?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14941804#comment-14941804 ] Sean Owen commented on SPARK-10798: ----------------------------------- That's Java code, and you're pasting it in the scala shell. > JsonMappingException with Spark Context Parallelize > --------------------------------------------------- > > Key: SPARK-10798 > URL: https://issues.apache.org/jira/browse/SPARK-10798 > Project: Spark > Issue Type: Bug > Components: Spark Core > Affects Versions: 1.5.0 > Environment: Linux, Java 1.8.45 > Reporter: Dev Lakhani > > When trying to create an RDD of Rows using a Java Spark Context and if I serialize the rows with Kryo first, the sparkContext fails. > byte[] data= Kryo.serialize(List) > List fromKryoRows=Kryo.unserialize(data) > List rows= new Vector(); //using a new set of data. > rows.add(RowFactory.create("test")); > javaSparkContext.parallelize(rows); > OR > javaSparkContext.parallelize(fromKryoRows); //using deserialized rows > I get : > com.fasterxml.jackson.databind.JsonMappingException: (None,None) (of class scala.Tuple2) (through reference chain: org.apache.spark.rdd.RDDOperationScope["parent"]) > at com.fasterxml.jackson.databind.JsonMappingException.wrapWithPath(JsonMappingException.java:210) > at com.fasterxml.jackson.databind.JsonMappingException.wrapWithPath(JsonMappingException.java:177) > at com.fasterxml.jackson.databind.ser.std.StdSerializer.wrapAndThrow(StdSerializer.java:187) > at com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:647) > at com.fasterxml.jackson.databind.ser.BeanSerializer.serialize(BeanSerializer.java:152) > at com.fasterxml.jackson.databind.ser.DefaultSerializerProvider.serializeValue(DefaultSerializerProvider.java:128) > at com.fasterxml.jackson.databind.ObjectMapper._configAndWriteValue(ObjectMapper.java:2881) > at com.fasterxml.jackson.databind.ObjectMapper.writeValueAsString(ObjectMapper.java:2338) > at org.apache.spark.rdd.RDDOperationScope.toJson(RDDOperationScope.scala:50) > at org.apache.spark.rdd.RDDOperationScope$.withScope(RDDOperationScope.scala:141) > at org.apache.spark.rdd.RDDOperationScope$.withScope(RDDOperationScope.scala:108) > at org.apache.spark.SparkContext.withScope(SparkContext.scala:700) > at org.apache.spark.SparkContext.parallelize(SparkContext.scala:714) > at org.apache.spark.api.java.JavaSparkContext.parallelize(JavaSparkContext.scala:145) > at org.apache.spark.api.java.JavaSparkContext.parallelize(JavaSparkContext.scala:157) > ... > Caused by: scala.MatchError: (None,None) (of class scala.Tuple2) > at com.fasterxml.jackson.module.scala.ser.OptionSerializer$$anonfun$serialize$1.apply$mcV$sp(OptionSerializerModule.scala:32) > at com.fasterxml.jackson.module.scala.ser.OptionSerializer$$anonfun$serialize$1.apply(OptionSerializerModule.scala:32) > at com.fasterxml.jackson.module.scala.ser.OptionSerializer$$anonfun$serialize$1.apply(OptionSerializerModule.scala:32) > at scala.Option.getOrElse(Option.scala:120) > at com.fasterxml.jackson.module.scala.ser.OptionSerializer.serialize(OptionSerializerModule.scala:31) > at com.fasterxml.jackson.module.scala.ser.OptionSerializer.serialize(OptionSerializerModule.scala:22) > at com.fasterxml.jackson.databind.ser.BeanPropertyWriter.serializeAsField(BeanPropertyWriter.java:505) > at com.fasterxml.jackson.module.scala.ser.OptionPropertyWriter.serializeAsField(OptionSerializerModule.scala:128) > at com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:639) > ... 19 more > I've tried updating jackson module scala to 2.6.1 but same issue. This happens in local mode with java 1.8_45. I searched the web and this Jira for similar issues but found nothing of interest. > -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscribe@spark.apache.org For additional commands, e-mail: issues-help@spark.apache.org