2017-11-09 20 views

答えて

2

あなたの助けのラムのためのthis databricks article : Connecting to SQL Databases using JDBC.

import org.apache.spark.sql.SaveMode 

val df = spark.table("...") 
println(df.rdd.partitions.length) 
// given the number of partitions above, users can reduce the partition value by calling coalesce() or increase it by calling repartition() to manage the number of connections. 
df.repartition(10).write.mode(SaveMode.Append).jdbc(jdbcUrl, "product_mysql", connectionProperties) 
+0

感謝を参照してください! – adarsh16

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