-
-
Save mieitza/a4dfcd814f934e70499687e24d059992 to your computer and use it in GitHub Desktop.
Save RDD and/or DataFrame from Spark to Elasticsearch
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
# Elastic configs | |
es_read_conf = { | |
"es.nodes" : "localhost", | |
"es.port" : "9200", | |
"es.resource" : "twitter/tweet" | |
} | |
es_write_conf = { | |
"es.nodes" : "localhost", | |
"es.port" : "9200", | |
"es.resource" : "twitter/tweet" | |
} | |
df = sc.parallelize([Row(message="This is a message", user="mocopera", post_date="2017-03-11T14:12:12")]).toDF() | |
rdd = df.rdd.map(lambda row: (None, row.asDict())) | |
# Save RDD to Elastic | |
row_rdd.saveAsNewAPIHadoopFile( | |
path='-', | |
outputFormatClass="org.elasticsearch.hadoop.mr.EsOutputFormat", | |
keyClass="org.apache.hadoop.io.NullWritable", | |
valueClass="org.elasticsearch.hadoop.mr.LinkedMapWritable", | |
conf=es_conf | |
) | |
# Save DF to Elastic | |
df.write.format("org.elasticsearch.spark.sql").option("es.resource", "twitter/tweet").save(mode="append") | |
# Read from Elastic | |
es_rdd = sc.newAPIHadoopRDD( | |
inputFormatClass="org.elasticsearch.hadoop.mr.EsInputFormat", | |
keyClass="org.apache.hadoop.io.NullWritable", | |
valueClass="org.elasticsearch.hadoop.mr.LinkedMapWritable", | |
conf=es_read_conf | |
) |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment