Bugfixes in scripts.

[cdsc_reddit.git] / submissions_2_parquet_part2.py

diff --git a/submissions_2_parquet_part2.py b/submissions_2_parquet_part2.py
index bd538e28ef581864c53eaf650e87f67b44b3800c..b88764bb4d04b35fa84ccbbe88f906403dbed947 100644 (file)
--- a/submissions_2_parquet_part2.py
+++ b/submissions_2_parquet_part2.py
@@ -2,20 +2,22 @@
 
 # spark script to make sorted, and partitioned parquet files 
 
 
 # spark script to make sorted, and partitioned parquet files 
 

+import pyspark

 from pyspark.sql import functions as f
 from pyspark.sql import SparkSession
 from pyspark.sql import functions as f
 from pyspark.sql import SparkSession

+import os

 
 spark = SparkSession.builder.getOrCreate()
 
 sc = spark.sparkContext
 
 
 spark = SparkSession.builder.getOrCreate()
 
 sc = spark.sparkContext
 

-conf = SparkConf().setAppName("Reddit submissions to parquet")
+conf = pyspark.SparkConf().setAppName("Reddit submissions to parquet")

 conf = conf.set("spark.sql.shuffle.partitions",2000)
 conf = conf.set('spark.sql.crossJoin.enabled',"true")
 conf = conf.set('spark.debug.maxToStringFields',200)
 sqlContext = pyspark.SQLContext(sc)
 
 conf = conf.set("spark.sql.shuffle.partitions",2000)
 conf = conf.set('spark.sql.crossJoin.enabled',"true")
 conf = conf.set('spark.debug.maxToStringFields',200)
 sqlContext = pyspark.SQLContext(sc)
 

-df = spark.read.parquet("/gscratch/comdata/output/reddit_submissions.parquet_temp")
+df = spark.read.parquet("/gscratch/comdata/output/reddit_submissions_by_subreddit.parquet")

 
 df = df.withColumn("subreddit_2", f.lower(f.col('subreddit')))
 df = df.drop('subreddit')
 
 df = df.withColumn("subreddit_2", f.lower(f.col('subreddit')))
 df = df.drop('subreddit')


@@ -30,13 +32,13 @@ df = df.withColumn("subreddit_hash",f.sha2(f.col("subreddit"), 256)[0:3])
 df = df.repartition("subreddit")
 df2 = df.sort(["subreddit","CreatedAt","id"],ascending=True)
 df2 = df.sortWithinPartitions(["subreddit","CreatedAt","id"],ascending=True)
 df = df.repartition("subreddit")
 df2 = df.sort(["subreddit","CreatedAt","id"],ascending=True)
 df2 = df.sortWithinPartitions(["subreddit","CreatedAt","id"],ascending=True)

-df2.write.parquet("/gscratch/comdata/output/reddit_submissions_by_subreddit.parquet", partitionBy=["Year",'Month'], mode='overwrite')
+df2.write.parquet("/gscratch/comdata/output/reddit_submissions_by_subreddit.parquet2", mode='overwrite',compression='snappy')

 
 
 # # we also want to have parquet files sorted by author then reddit. 
 df = df.repartition("author")
 df3 = df.sort(["author","CreatedAt","id"],ascending=True)
 df3 = df.sortWithinPartitions(["author","CreatedAt","id"],ascending=True)
 
 
 # # we also want to have parquet files sorted by author then reddit. 
 df = df.repartition("author")
 df3 = df.sort(["author","CreatedAt","id"],ascending=True)
 df3 = df.sortWithinPartitions(["author","CreatedAt","id"],ascending=True)

-df3.write.parquet("/gscratch/comdata/output/reddit_submissions_by_author.parquet", partitionBy=["Year",'Month'], mode='overwrite')
+df3.write.parquet("/gscratch/comdata/output/reddit_submissions_by_author.parquet2", mode='overwrite',compression='snappy')

 
 os.remove("/gscratch/comdata/output/reddit_submissions.parquet_temp")
 
 os.remove("/gscratch/comdata/output/reddit_submissions.parquet_temp")