How to access global temp view in another pyspark application? - apache-spark

Question

I have a spark shell which invokes pyscript and has created a global temp view
This is what I am doing in first spark shell script
from pyspark.sql import SparkSession
spark = SparkSession \
.builder \
.appName("Spark SQL Parllel load example") \
.config("spark.jars","/u/user/graghav6/sqljdbc4.jar") \
.config("spark.dynamicAllocation.enabled","true") \
.config("spark.shuffle.service.enabled","true") \
.config("hive.exec.dynamic.partition", "true") \
.config("hive.exec.dynamic.partition.mode", "nonstrict") \
.config("spark.sql.shuffle.partitions","50") \
.config("hive.metastore.uris", "thrift://xxxxx:9083") \
.config("spark.sql.join.preferSortMergeJoin","true") \
.config("spark.sql.autoBroadcastJoinThreshold", "-1") \
.enableHiveSupport() \
.getOrCreate()
#after doing some transformation I am trying to create a global temp view of dataframe as:
df1.createGlobalTempView("df1_global_view")
spark.stop()
exit()
This is my second spark shell script:
from pyspark.sql import SparkSession
spark = SparkSession \
.builder \
.appName("Spark SQL Parllel load example") \
.config("spark.jars","/u/user/graghav6/sqljdbc4.jar") \
.config("spark.dynamicAllocation.enabled","true") \
.config("spark.shuffle.service.enabled","true") \
.config("hive.exec.dynamic.partition", "true") \
.config("hive.exec.dynamic.partition.mode", "nonstrict") \
.config("spark.sql.shuffle.partitions","50") \
.config("hive.metastore.uris", "thrift://xxxx:9083") \
.config("spark.sql.join.preferSortMergeJoin","true") \
.config("spark.sql.autoBroadcastJoinThreshold", "-1") \
.enableHiveSupport() \
.getOrCreate()
newSparkSession = spark.newSession()
#reading dta from the global temp view
data_df_save = newSparkSession.sql(""" select * from global_temp.df1_global_view""")
data_df_save.show()
newSparkSession.close()
exit()
I am getting below error:
Stdoutput pyspark.sql.utils.AnalysisException: u"Table or view not found: `global_temp`.`df1_global_view`; line 1 pos 15;\n'Project [*]\n+- 'UnresolvedRelation `global_temp`.`df1_global_view`\n"
Looks like I am missing something. How can I shared the same global temp view across multiple sessions?
Am I closing the spark session incorrectly in first spark shell?
I have found couple of answers already on stack-overflow but was not able to figure out the cause.

Answer 1

You're using createGlobalTempView so it's a temporary view and won't be available after you close the app.
In other words, it will be available in another SparkSession, but not in another PySpark application.