when i am import this >from pyspark_llap import HiveWarehouseSession
i had faced the error like
ImportError: No module named pyspark_llap.
how to install this module .Is there any step by step user guide?
If you are facing this issue, as you said it's because you do not have imported the module.
I believe you should check this documentation on how to import HWC and use it :
If you are using Zeppelin, please check this :
Note that, in Zeppelin pysark configuration could not work, so a work around is to set (via Ambari) in Zeppelin-env.sh section, this configuration :
export SPARK_SUBMIT_OTPIONS="--jars usr/hdp/current/hive_warehouse_connector/hive-warehouse-connector-assembly-<version>.jar --py-files usr/hdp/current/hive_warehouse_connector/hive-warehouse-connector-assembly-<version>.zip"
Then to start a pyspark shell on your machines, launch this command :
pyspark --jars /usr/hdp/current/hive_warehouse_connector/hive-warehouse-connector-assembly-jar --py-files /usr/hdp/current/hive_warehouse_connector/pyspark_hwc-.zip