Brian Hulette created BEAM-10708:
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Summary: InteractiveRunner cannot execute pipeline with
cross-language transform
Key: BEAM-10708
URL: https://issues.apache.org/jira/browse/BEAM-10708
Project: Beam
Issue Type: Bug
Components: cross-language
Reporter: Brian Hulette
The InteractiveRunner crashes when given a pipeline that includes a
cross-language transform.
Here's the example I tried to run in a jupyter notebook:
{code:python}
p = beam.Pipeline(InteractiveRunner())
pc = (p | SqlTransform("""SELECT
CAST(1 AS INT) AS `id`,
CAST('foo' AS VARCHAR) AS `str`,
CAST(3.14 AS DOUBLE) AS `flt`"""))
df = interactive_beam.collect(pc)
{code}
The problem occurs when
[pipeline_fragment.py|https://github.com/apache/beam/blob/dce1eb83b8d5137c56ac58568820c24bd8fda526/sdks/python/apache_beam/runners/interactive/pipeline_fragment.py#L66]
creates a copy of the pipeline by [writing it to proto and reading it
back|https://github.com/apache/beam/blob/dce1eb83b8d5137c56ac58568820c24bd8fda526/sdks/python/apache_beam/runners/interactive/pipeline_fragment.py#L120].
Reading it back fails because some of the pipeline is not written in Python.
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