How to access lookup(broadcast) RDD(or dataset) in
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: Iamnewtosparkandscalaandjuststartedlearning...Iamusingspark1.0.0onCDH5.1.3 Igotabroadcastedrddna......
Task not serializable while using custom dataframe
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: IamfacingastrangeissuewithScala/Spark(1.5)andZeppelin: IfIrunthefollowingScala/Sparkcode,itwillrunpr......
Array of JSON to Dataframe in Spark received by Ka
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: I'mwritingaSparkapplicationinScalausingSparkStructuredStreamingthatreceivesomedataformattedinJSONstyle......
Kafka + Spark Streaming: constant delay of 1 secon
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: EDIT2:FinallyIhavemademyownproducerusingJavaanditworkswell,sotheproblemisintheKafka-console-producer.......
spark.task.maxFailures not working as expected
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: IamrunningaSparkjobwithspark.task.maxFailuressetto1,andaccordingtotheofficialdocumentation: spark.task.m......
How to remove NULL and empty for a particular colu
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: Iwouldliketoremoverecordsfromadataframehavingdemo_nameasNULLanddemo_nameasempty. demo_nameisacolumni......
Submit an application property file with Spark typ
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: Please,Ineedyourhelp,I'mtryingtosubmitanexternalconfigurationfileformysparkapplicationusingtypesafecon......
How to refer broadcast variable in Spark DataFrame
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: IhavethefollowingSparkSQL: valresultDf=spark.sql("SELECTname,phone,countryFROMusers") I'dliketofilterr......
Why RDD calculating count take so much time
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: (Englishisnotmyfirstlanguagesopleaseexcuseanymistakes) IuseSparkSQLreading4.7TBdatafromhivetable,and......
Dropping the first and last row of an RDD with Spa
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: I'mreadinginatextfileusingsparkwithsc.textFile(fileLocation)andneedtobeabletoquicklydropthefirstandl......
How Spark internally works when reading HDFS files
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: SayIhaveafileof256KBisstoredonHDFSfilesystemofonenode(astwoblocksof128KBeach).Thisfileinternal......
filter spark dataframe based on maximum value of a
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: Iwanttodosomethinglikethis: df .withColumn("newCol",<someformula>) .filter(s"""newCol>${(math.min(max("ne...
How can I monitor memory and CPU usage by spark ap
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: Afterrunningmysparkapplication,Iwanttomonitoritsmemoryandcpuusagetoevaluateitsperformancebutcouldn'tf......
What is the maximum number of case class fields in
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: Itusedtobe22,Iheardsomeonesayit'snow512?Isthatcorrect?Cansomeoneprovideasource. 回答1: InScala......
Spark Structured Streaming + Kafka Integration: Mi
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: IamusingSparkStructuredStreamingtoprocesstheincomingandoutgoingdatastreamsfromandtoApacheKafkarespecti......
Convert a Spark Vector of features into an array
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: IhaveafeaturescolumnwhichispackagedintoaVectorofvectorsusingSpark'sVectorAssembler,asfollows.dataisth......
How to convert spark streaming output into datafra
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: Mycodeis: vallines=KafkaUtils.createStream(ssc,"localhost:2181","spark-streaming-consumer-group",Map("hello"->....
How to find an optimized join between 2 different
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: Ihavea2differentdatasets,Iwouldliketojointhem,butthereisnoeasywaytodoitbecausetheydon'thaveacom......
Expand array-of-structs into columns in PySpark
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: IhaveaSparkdataframe,originatingfromGoogleAnalytics,thatlookslikethefollowing: idcustomDimensions(Arr......
aws access s3 from spark using IAM role
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: Iwanttoaccesss3fromspark,Idon'twanttoconfigureanysecretandaccesskeys,Iwanttoaccesswithconfiguringt......
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