I've run into an error when trying to create a dataframe. Here's the code:
--
from pyspark import StorageLevel
from pyspark.sql import Row
table = 'blah'
ssc = HiveContext(sc)
data = sc.textFile('s3://bucket/some.tsv')
def deserialize(s):
p = s.strip().split('\t')
p[-1] = float(p[-1])
return Row(normalized_page_sha1=p[0], name=p[1], phrase=p[2],
created_at=p[3], layer_id=p[4], score=p[5])
blah = data.map(deserialize)
df = sqlContext.inferSchema(blah)
---
I've also tried s3n and using createDataFrame. Our setup is on EMR
instances, using the setup script Amazon provides. After lots of debugging,
I suspect there'll be a problem with this setup.
What's weird is that if I run this on pyspark shell, and re-run the last
line (inferSchema/createDataFrame), it actually works.
We're getting warnings like this:
http://pastebin.ca/3016476
Here's the actual error:
http://www.pastebin.ca/3016473
Any help would be greatly appreciated.
Thanks,
Ignacio
