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2025-01-17 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Development >
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Editor to share with you spark how to achieve parquetfile write operation, I hope you have something to gain after reading this article, let's discuss it together!
The writing of parquetfile
Case class ParquetFormat (usr_id:BigInt, install_ids:String) val appRdd=sc.textFile ("hdfs://"). Map (_ .split ("\ t")) .map (r = > ParquetFormat (r (0). ToLong,r (1)) sqlContext.createDataFrame (appRdd) .repartition (1). Write.parquet ("hdfs://") after reading this article, I believe you have some understanding of "how spark implements parquetfile write operations". If you want to know more about it. Welcome to follow the industry information channel, thank you for reading!
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