Created
March 1, 2017 10:10
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spark read and write parquet files
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| // read | |
| val filePath = "file:///path/to/spark/examples/src/main/resources/users.parquet" | |
| val users = sqlContext.read.load(filePath) | |
| // write | |
| val personJsonFile = "file:///path/to/spark/examples/src/main/resources/people.json" | |
| val personDF = sqlContext.read.json(personJsonFile) | |
| personDF.select("name", "age").write.format("parquet").save("file:///tmp/new_people.parquet") |
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