def test_able_to_cache_intermediate_unbounded_source_pcollection(self):
"""Tests being able to cache an intermediate source PCollection.
In the following pipeline, the source doesn't have a reference and so is
not automatically cached in the watch() command. This tests that this case
is taken care of.
"""
# Create a new interactive environment to make the test idempotent.
ie.new_env(cache_manager=streaming_cache.StreamingCache(
cache_dir=None))
# Create the pipeline that will be instrumented.
from apache_beam.options.pipeline_options import StandardOptions
options = StandardOptions(streaming=True)
p_original = beam.Pipeline(interactive_runner.InteractiveRunner(),
options)
# pylint: disable=possibly-unused-variable
source_1 = (
p_original
| 'source1' >> beam.io.ReadFromPubSub(
subscription='projects/fake-project/subscriptions/fake_sub')
| beam.Map(lambda e: e))
# Watch but do not cache the PCollections.
ib.watch(locals())
def cache_key_of(name, pcoll):
return name + '_' + str(id(pcoll)) + '_' + str(id(pcoll.producer))
# Make sure that sources without a user reference are still cached.
instr.watch_sources(p_original)
intermediate_source_pcoll = None
for watching in ie.current_env().watching():
watching = list(watching)
for var, watchable in watching:
if 'synthetic' in var:
intermediate_source_pcoll = watchable
break
# Instrument the original pipeline to create the pipeline the user will see.
p_copy = beam.Pipeline.from_runner_api(
p_original.to_runner_api(),
runner=interactive_runner.InteractiveRunner(),
options=options)
instrumenter = instr.build_pipeline_instrument(p_copy)
actual_pipeline = beam.Pipeline.from_runner_api(
proto=instrumenter.instrumented_pipeline_proto(),
runner=interactive_runner.InteractiveRunner(),
options=options)
# Now, build the expected pipeline which replaces the unbounded source with
# a TestStream.
intermediate_source_pcoll_cache_key = \
cache_key_of('synthetic_var_' + str(id(intermediate_source_pcoll)),
intermediate_source_pcoll)
p_expected = beam.Pipeline()
test_stream = (
p_expected
| TestStream(output_tags=[intermediate_source_pcoll_cache_key]))
# pylint: disable=expression-not-assigned
(test_stream
| 'square1' >> beam.Map(lambda e: e)
| 'reify' >> beam.Map(lambda _: _)
| cache.WriteCache(ie.current_env().cache_manager(), 'unused'))
# Test that the TestStream is outputting to the correct PCollection.
class TestStreamVisitor(PipelineVisitor):
def __init__(self):
self.output_tags = set()
def enter_composite_transform(self, transform_node):
self.visit_transform(transform_node)
def visit_transform(self, transform_node):
transform = transform_node.transform
if isinstance(transform, TestStream):
self.output_tags = transform.output_tags
v = TestStreamVisitor()
actual_pipeline.visit(v)
expected_output_tags = set([intermediate_source_pcoll_cache_key])
actual_output_tags = v.output_tags
self.assertSetEqual(expected_output_tags, actual_output_tags)
# Test that the pipeline is as expected.
assert_pipeline_proto_equal(
self, p_expected.to_runner_api(use_fake_coders=True),
instrumenter.instrumented_pipeline_proto())
def setUp(self):
ie.new_env(cache_manager=InMemoryCache())
def setUp(self):
ie.new_env(cache_manager=cache.FileBasedCacheManager())
def setUp(self): ie.new_env()
def test_display_plain_text_when_kernel_has_no_frontend(
self, _mocked_sample):
ie.new_env(
) # Resets the notebook check. Should be False in unit tests.
self.assertIsNone(pv.visualize(self._pcoll))
_mocked_sample.assert_called_once()
def test_instrument_mixed_streaming_batch(self):
"""Tests caching for both batch and streaming sources in the same pipeline.
This ensures that cached bounded and unbounded sources are read from the
TestStream.
"""
# Create a new interactive environment to make the test idempotent.
ie.new_env(cache_manager=streaming_cache.StreamingCache(cache_dir=None))
# Create the pipeline that will be instrumented.
from apache_beam.options.pipeline_options import StandardOptions
options = StandardOptions(streaming=True)
p_original = beam.Pipeline(interactive_runner.InteractiveRunner(), options)
source_1 = p_original | 'source1' >> beam.io.ReadFromPubSub(
subscription='projects/fake-project/subscriptions/fake_sub')
source_2 = p_original | 'source2' >> beam.Create([1, 2, 3, 4, 5])
# pylint: disable=possibly-unused-variable
pcoll_1 = ((source_1, source_2)
| beam.Flatten()
| 'square1' >> beam.Map(lambda x: x * x))
# Watch but do not cache the PCollections.
ib.watch(locals())
self._mock_write_cache([b''], self.cache_key_of('source_2', source_2))
ie.current_env().mark_pcollection_computed([source_2])
# Instrument the original pipeline to create the pipeline the user will see.
p_copy = beam.Pipeline.from_runner_api(
p_original.to_runner_api(),
runner=interactive_runner.InteractiveRunner(),
options=options)
instrumenter = instr.build_pipeline_instrument(p_copy)
actual_pipeline = beam.Pipeline.from_runner_api(
proto=instrumenter.instrumented_pipeline_proto(),
runner=interactive_runner.InteractiveRunner(),
options=options)
# Now, build the expected pipeline which replaces the unbounded source with
# a TestStream.
source_1_cache_key = self.cache_key_of('source_1', source_1)
source_2_cache_key = self.cache_key_of('source_2', source_2)
p_expected = beam.Pipeline()
test_stream = (
p_expected
| TestStream(output_tags=[source_1_cache_key, source_2_cache_key]))
# pylint: disable=expression-not-assigned
((
test_stream[self.cache_key_of('source_1', source_1)],
test_stream[self.cache_key_of('source_2', source_2)])
| beam.Flatten()
| 'square1' >> beam.Map(lambda x: x * x)
| 'reify' >> beam.Map(lambda _: _)
| cache.WriteCache(ie.current_env().cache_manager(), 'unused'))
# Test that the TestStream is outputting to the correct PCollection.
class TestStreamVisitor(PipelineVisitor):
def __init__(self):
self.output_tags = set()
def enter_composite_transform(self, transform_node):
self.visit_transform(transform_node)
def visit_transform(self, transform_node):
transform = transform_node.transform
if isinstance(transform, TestStream):
self.output_tags = transform.output_tags
v = TestStreamVisitor()
actual_pipeline.visit(v)
expected_output_tags = set([source_1_cache_key, source_2_cache_key])
actual_output_tags = v.output_tags
self.assertSetEqual(expected_output_tags, actual_output_tags)
# Test that the pipeline is as expected.
assert_pipeline_proto_equal(
self,
p_expected.to_runner_api(use_fake_coders=True),
instrumenter.instrumented_pipeline_proto())
def test_cleanup_invoked_when_cm_changed(self, mocked_cleanup): ie._interactive_beam_env = None ie.new_env(cache.FileBasedCacheManager()) ie.current_env().set_cache_manager(cache.FileBasedCacheManager()) mocked_cleanup.assert_called_once()
def setUp(self):
self._var_in_class_instance = 'a var in class instance, not directly used'
ie.new_env()
def test_no_cleanup_when_cm_none(self, mocked_atexit): ie.new_env(None) mocked_atexit.assert_not_called()
def test_cleanup_when_cm_not_none(self, mocked_atexit): ie.new_env(cache.FileBasedCacheManager()) mocked_atexit.assert_called_once()
def test_get_cache_manager_creates_cache_manager_if_absent(self):
ie.new_env()
dummy_pipeline = 'dummy'
self.assertIsNone(ie.current_env().get_cache_manager(dummy_pipeline))
self.assertIsNotNone(ie.current_env().get_cache_manager(
dummy_pipeline, create_if_absent=True))
def tearDown(self):
for _, job in ie.current_env()._background_caching_jobs.items():
job.cancel()
ie.new_env()
def tearDown(self): ie.new_env()
def test_instrument_example_unbounded_pipeline_to_read_cache_not_cached(
self):
"""Tests that the instrumenter works when the PCollection is not cached.
"""
# Create a new interactive environment to make the test idempotent.
ie.new_env(cache_manager=streaming_cache.StreamingCache(
cache_dir=None))
# Create the pipeline that will be instrumented.
from apache_beam.options.pipeline_options import StandardOptions
options = StandardOptions(streaming=True)
p_original = beam.Pipeline(interactive_runner.InteractiveRunner(),
options)
source_1 = p_original | 'source1' >> beam.io.ReadFromPubSub(
subscription='projects/fake-project/subscriptions/fake_sub')
# pylint: disable=possibly-unused-variable
pcoll_1 = source_1 | 'square1' >> beam.Map(lambda x: x * x)
# Watch but do not cache the PCollections.
ib.watch(locals())
def cache_key_of(name, pcoll):
return name + '_' + str(id(pcoll)) + '_' + str(id(pcoll.producer))
# Instrument the original pipeline to create the pipeline the user will see.
p_copy = beam.Pipeline.from_runner_api(
p_original.to_runner_api(),
runner=interactive_runner.InteractiveRunner(),
options=options)
instrumenter = instr.build_pipeline_instrument(p_copy)
actual_pipeline = beam.Pipeline.from_runner_api(
proto=instrumenter.instrumented_pipeline_proto(),
runner=interactive_runner.InteractiveRunner(),
options=options)
# Now, build the expected pipeline which replaces the unbounded source with
# a TestStream.
source_1_cache_key = cache_key_of('source_1', source_1)
p_expected = beam.Pipeline()
test_stream = (
p_expected
| TestStream(output_tags=[cache_key_of('source_1', source_1)]))
# pylint: disable=expression-not-assigned
(test_stream
| 'square1' >> beam.Map(lambda x: x * x)
| 'reify' >> beam.Map(lambda _: _)
| cache.WriteCache(ie.current_env().cache_manager(), 'unused'))
# Test that the TestStream is outputting to the correct PCollection.
class TestStreamVisitor(PipelineVisitor):
def __init__(self):
self.output_tags = set()
def enter_composite_transform(self, transform_node):
self.visit_transform(transform_node)
def visit_transform(self, transform_node):
transform = transform_node.transform
if isinstance(transform, TestStream):
self.output_tags = transform.output_tags
v = TestStreamVisitor()
actual_pipeline.visit(v)
expected_output_tags = set([source_1_cache_key])
actual_output_tags = v.output_tags
self.assertSetEqual(expected_output_tags, actual_output_tags)
# Test that the pipeline is as expected.
assert_pipeline_proto_equal(
self, p_expected.to_runner_api(use_fake_coders=True),
instrumenter.instrumented_pipeline_proto())
def setUp(self): self._p = beam.Pipeline() self._var_in_class_instance = 'a var in class instance' ie.new_env()
def test_instrument_example_unbounded_pipeline_to_multiple_read_cache(
self):
"""Tests that the instrumenter works for multiple unbounded sources.
"""
# Create a new interactive environment to make the test idempotent.
ie.new_env(cache_manager=streaming_cache.StreamingCache(
cache_dir=None))
# Create the pipeline that will be instrumented.
p_original = beam.Pipeline(interactive_runner.InteractiveRunner())
source_1 = p_original | 'source1' >> beam.io.ReadFromPubSub(
subscription='projects/fake-project/subscriptions/fake_sub')
source_2 = p_original | 'source2' >> beam.io.ReadFromPubSub(
subscription='projects/fake-project/subscriptions/fake_sub')
# pylint: disable=possibly-unused-variable
pcoll_1 = source_1 | 'square1' >> beam.Map(lambda x: x * x)
# pylint: disable=possibly-unused-variable
pcoll_2 = source_2 | 'square2' >> beam.Map(lambda x: x * x)
# Mock as if cacheable PCollections are cached.
ib.watch(locals())
def cache_key_of(name, pcoll):
return name + '_' + str(id(pcoll)) + '_' + str(id(pcoll.producer))
for name, pcoll in locals().items():
if not isinstance(pcoll, beam.pvalue.PCollection):
continue
cache_key = cache_key_of(name, pcoll)
self._mock_write_cache([b''], cache_key)
# Instrument the original pipeline to create the pipeline the user will see.
instrumenter = instr.build_pipeline_instrument(p_original)
actual_pipeline = beam.Pipeline.from_runner_api(
proto=instrumenter.instrumented_pipeline_proto(),
runner=interactive_runner.InteractiveRunner(),
options=None)
# Now, build the expected pipeline which replaces the unbounded source with
# a TestStream.
source_1_cache_key = cache_key_of('source_1', source_1)
source_2_cache_key = cache_key_of('source_2', source_2)
p_expected = beam.Pipeline()
test_stream = (p_expected
| TestStream(output_tags=[
cache_key_of('source_1', source_1),
cache_key_of('source_2', source_2)
]))
# pylint: disable=expression-not-assigned
test_stream[source_1_cache_key] | 'square1' >> beam.Map(
lambda x: x * x)
# pylint: disable=expression-not-assigned
test_stream[source_2_cache_key] | 'square2' >> beam.Map(
lambda x: x * x)
# Test that the TestStream is outputting to the correct PCollection.
class TestStreamVisitor(PipelineVisitor):
def __init__(self):
self.output_tags = set()
def enter_composite_transform(self, transform_node):
self.visit_transform(transform_node)
def visit_transform(self, transform_node):
transform = transform_node.transform
if isinstance(transform, TestStream):
self.output_tags = transform.output_tags
v = TestStreamVisitor()
actual_pipeline.visit(v)
expected_output_tags = set([source_1_cache_key, source_2_cache_key])
actual_output_tags = v.output_tags
self.assertSetEqual(expected_output_tags, actual_output_tags)
# Test that the pipeline is as expected.
assert_pipeline_proto_equal(self, p_expected.to_runner_api(),
instrumenter.instrumented_pipeline_proto())
def setUp(self):
self._var_in_class_instance = 'a var in class instance'
ie.new_env()
