Google Cloud Storage Java not storing file to storage space

should help you out So the problem was that app engine was not authorized to read/write to the bucket created in the cloud store.

Hope that helps App Engine request limit is 32Mb. That's why your uploads are failing when you send a file > 32Mb. Checkout Quotas and Limits section.
You have two options for uploading files > 32Mb:

Does that help The lxml.etree.parse() function expects a string as a filename. If you want to pass it file contents instead, you need to wrap it in a StringIO or BytesIO (in this case, the latter):

from io import BytesIO
from google.cloud import storage
import lxml.etree as ET

client = storage.Client()
bucket = client.get_bucket('customerfile02')
xmlblob = bucket.blob('testprofile.xml')
inputxml = xmlblob.download_as_string()
xmldom = ET.parse(BytesIO(inputxml))

I wish this helpful for you You're asking several questions, so lets take them one at a time.
my code imports quite a few external modules which I have copied to my master and import works fine in master. What is the best practice to copy it over all other worker nodes so that when Pyspark runs in those workers I don't get the import error.