How can I pass datasets between %pyspark interpreter and %python interpreters in Zeppelin?

问题

I'm writing a code where I'm fetching a dataset using an internal library and %pyspark interpreter. However I am unable to pass the dataset to %python interpreter. I tried using string variables and it is working fine, but with dataset I'm using the following code to put dataset in a zeppelin context- z.put("input_data",input_data)

and it is throwing the following error:

AttributeError: 'DataFrame' object has no attribute '_get_object_id'.

Can you please tell me how can I do this? Thanks in advance.

回答1:

You can put the result in ResourcePool via print it to %table.

%python
print('%table a\tb\n408+\t+408\n0001\t++99\n40817810300001453030\t0000040817810300001453030')

Then get in such way.

%spark.pyspark
ic = z.getInterpreterContext()
pool = ic.getResourcePool()
paragraphId = "20180828-093109_1491500809"
t = pool.get(ic.getNoteId(), paragraphId, "zeppelin.paragraph.result.table").get().toString()

print(t)

This way allows to transfer up to 50-100 megabytes of raw data.

Anyway I recommend to follow @zjffdu to use only one of these interpreters.

来源：https://stackoverflow.com/questions/51915908/how-can-i-pass-datasets-between-pyspark-interpreter-and-python-interpreters-in