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Pyspark settings to read various kinds of data from different sources from your local setup
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from pyspark.sql import SparkSession | |
# 1. Get the hadoop version used by your spark installation along with the spark version | |
spark = SparkSession.builder.master("local").getOrCreate() | |
print(f"Hadoop version: {spark._jvm.org.apache.hadoop.util.VersionInfo.getVersion()}") | |
print(f"Spark Version: {spark.version}") | |
# 2. Reading data from a a public S3 bucket without configuring AWS credentials, package could've been set with the pyspark job run | |
spark = ( | |
SparkSession.builder.master("local[*]") | |
.config("spark.jars.packages", "org.apache.hadoop:hadoop-aws:3.2.0") # Use hadoop version which you can find using 1. | |
.config("fs.s3a.aws.credentials.provider", "org.apache.hadoop.fs.s3a.AnonymousAWSCredentialsProvider") | |
.getOrCreate() | |
) | |
# 3. Reading avro data with the needed package | |
spark = ( | |
SparkSession.builder.master("local[*]") | |
.config("spark.jars.packages", "org.apache.spark:spark-avro_2.12:3.0.1") # Use spark version which you can find using 1. | |
.getOrCreate() | |
) | |
# 4. If you get one of the following errors: | |
# - Service 'sparkDriver' could not bind on a random free port. You may check whether configuring an appropriate binding address. | |
# - Can't assign requested address: Service 'sparkDriver' failed after 16 retries! | |
# Try to assign your localhost to host and bindAddress as shown below | |
spark = ( | |
SparkSession.builder | |
.master("local[*]") | |
.config("spark.driver.host", "127.0.0.1") | |
.config("spark.driver.bindAddress", "127.0.0.1") | |
.getOrCreate() | |
) |
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