SparkSQL External Datasource简易使用之AVRO

下载源码&编译：

git clone https://github.com/databricks/spark-avro.git

sbt/sbt package

 

Maven GAV：

groupId: com.databricks.spark

artifactId: spark-avro_2.10

version: 0.1

 

$SPARK_HOME/conf/spark-env.sh

export SPARK_CLASSPATH=/home/spark/software/source/spark_package/spark-avro/target/scala-2.10/spark-avro_2.10-0.1.jar:$SPARK_CLASSPATH

 

测试数据下载:

wget https://github.com/databricks/spark-avro/raw/master/src/test/resources/episodes.avro 

 

Scala API：

import org.apache.spark.sql.SQLContext

val sqlContext = new SQLContext(sc)

import com.databricks.spark.avro._

val episodes = sqlContext.avroFile("file:///home/spark/software/data/episodes.avro")

import sqlContext._

episodes.select('title).collect()

 

SQL:

CREATE TEMPORARY TABLE episodes

USING com.databricks.spark.avro

OPTIONS (path "file:///home/spark/software/data/episodes.avro");



select * from episodes;