+user@, bcc: dev@ https://issues.apache.org/jira/browse/BEAM-6158 may be contributing to this issue, although we saw instances of this bug in exactly opposite scenarios - when pipeline was defined *in one file*, but not in multiple files.
Could you try replacing instances of super() in aggregation_transform.py as done in https://github.com/apache/beam/pull/9513 and see if this issue is still reproducible? If that doesn't work, I would try to get the dump of serialized_fn, and try to reproduce the issue in isolated environment, such as: form apache_beam.internal import pickler serialized_fn = "..content.." pickler.loads(serialized_fn) then I would try to trim the doFn in the example to a minimally-reproducible example. It could be another issue with dill dependency. On Mon, Oct 28, 2019 at 2:48 PM Rakesh Kumar <rakeshku...@lyft.com> wrote: > Hi All, > > We have noticed a weird intermittent issue on Python3 but we don't run > into this issue on python2. Sometimes when we are trying to submit the > pipeline, we get AttributeError (Check the stack trace below). we have > double-checked and we do find the attribute/methods are present in the > right module and in right place but somehow the pipeline still complains > about it. In some cases, we refer methods before their definition. We tried > to reorder the method definition but that didn't help at all. > > We don't see the same issue when the entire pipeline is defined in one > file. Also, note that this doesn't happen all the time when we submit the > pipeline, so I feel it is some kind of race condition. When we enable the > worker recycle logic it happens most of the time when sdk worker is > recycled. > > Some more information about the environment: > Python version: 3 > Beam version: 2.16 > Flink version: 1.8 > > *Stack trace: * > > - : > > TimerException{java.lang.RuntimeException: Failed to finish remote bundle} > at > org.apache.flink.streaming.runtime.tasks.SystemProcessingTimeService$RepeatedTriggerTask.run(SystemProcessingTimeService.java:335) > at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) > at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308) > at > java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) > at > java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) > at java.lang.Thread.run(Thread.java:748) > Caused by: java.lang.RuntimeException: Failed to finish remote bundle > at > org.apache.beam.runners.flink.translation.wrappers.streaming.ExecutableStageDoFnOperator$SdkHarnessDoFnRunner.finishBundle(ExecutableStageDoFnOperator.java:667) > at > org.apache.beam.runners.core.StatefulDoFnRunner.finishBundle(StatefulDoFnRunner.java:144) > at > org.apache.beam.runners.flink.translation.wrappers.streaming.ExecutableStageDoFnOperator$2.finishBundle(ExecutableStageDoFnOperator.java:754) > at > org.apache.beam.runners.flink.metrics.DoFnRunnerWithMetricsUpdate.finishBundle(DoFnRunnerWithMetricsUpdate.java:86) > at > org.apache.beam.runners.core.SimplePushbackSideInputDoFnRunner.finishBundle(SimplePushbackSideInputDoFnRunner.java:118) > at > org.apache.beam.runners.flink.translation.wrappers.streaming.DoFnOperator.invokeFinishBundle(DoFnOperator.java:750) > at > org.apache.beam.runners.flink.translation.wrappers.streaming.DoFnOperator.checkInvokeFinishBundleByTime(DoFnOperator.java:744) > at > org.apache.beam.runners.flink.translation.wrappers.streaming.DoFnOperator.lambda$open$1(DoFnOperator.java:460) > at > org.apache.flink.streaming.runtime.tasks.SystemProcessingTimeService$RepeatedTriggerTask.run(SystemProcessingTimeService.java:330) > ... 7 more > Caused by: java.util.concurrent.ExecutionException: > java.lang.RuntimeException: Error received from SDK harness for instruction > 6: Traceback (most recent call last): > File > "/srv/venvs/service/trusty/service_venv_python3.6/lib/python3.6/site-packages/apache_beam/runners/worker/sdk_worker.py", > line 307, in get > processor = self.cached_bundle_processors[bundle_descriptor_id].pop() > IndexError: pop from empty list > > During handling of the above exception, another exception occurred: > > Traceback (most recent call last): > File > "/srv/venvs/service/trusty/service_venv_python3.6/lib/python3.6/site-packages/apache_beam/internal/pickler.py", > line 261, in loads > return dill.loads(s) > File > "/srv/venvs/service/trusty/service_venv_python3.6/lib/python3.6/site-packages/dill/_dill.py", > line 317, in loads > return load(file, ignore) > File > "/srv/venvs/service/trusty/service_venv_python3.6/lib/python3.6/site-packages/dill/_dill.py", > line 305, in load > obj = pik.load() > File > "/srv/venvs/service/trusty/service_venv_python3.6/lib/python3.6/site-packages/dill/_dill.py", > line 474, in find_class > return StockUnpickler.find_class(self, module, name) > *AttributeError: Can't get attribute '_timestamp_keyed_result' on <module > 'pricingrealtime.aggregation.aggregation_transform' from > '/srv/testpricingrt/7e5425fc4400bf14e80a98fb13461530c7867891/pricingrealtime/aggregation/aggregation_transform.py'>* > > During handling of the above exception, another exception occurred: > > Traceback (most recent call last): > File > "/srv/venvs/service/trusty/service_venv_python3.6/lib/python3.6/site-packages/apache_beam/runners/worker/sdk_worker.py", > line 165, in _execute > response = task() > File > "/srv/venvs/service/trusty/service_venv_python3.6/lib/python3.6/site-packages/apache_beam/runners/worker/sdk_worker.py", > line 198, in <lambda> > self._execute(lambda: worker.do_instruction(work), work) > File > "/srv/venvs/service/trusty/service_venv_python3.6/lib/python3.6/site-packages/apache_beam/runners/worker/sdk_worker.py", > line 351, in do_instruction > request.instruction_id) > File > "/srv/venvs/service/trusty/service_venv_python3.6/lib/python3.6/site-packages/apache_beam/runners/worker/sdk_worker.py", > line 371, in process_bundle > instruction_id, request.process_bundle_descriptor_reference) > File > "/srv/venvs/service/trusty/service_venv_python3.6/lib/python3.6/site-packages/apache_beam/runners/worker/sdk_worker.py", > line 313, in get > self.data_channel_factory) > File > "/srv/venvs/service/trusty/service_venv_python3.6/lib/python3.6/site-packages/apache_beam/runners/worker/bundle_processor.py", > line 576, in __init__ > self.ops = self.create_execution_tree(self.process_bundle_descriptor) > File > "/srv/venvs/service/trusty/service_venv_python3.6/lib/python3.6/site-packages/apache_beam/runners/worker/bundle_processor.py", > line 620, in create_execution_tree > descriptor.transforms, key=topological_height, reverse=True)]) > File > "/srv/venvs/service/trusty/service_venv_python3.6/lib/python3.6/site-packages/apache_beam/runners/worker/bundle_processor.py", > line 619, in <listcomp> > for transform_id in sorted( > File > "/srv/venvs/service/trusty/service_venv_python3.6/lib/python3.6/site-packages/apache_beam/runners/worker/bundle_processor.py", > line 544, in wrapper > result = cache[args] = func(*args) > File > "/srv/venvs/service/trusty/service_venv_python3.6/lib/python3.6/site-packages/apache_beam/runners/worker/bundle_processor.py", > line 603, in get_operation > in descriptor.transforms[transform_id].outputs.items() > File > "/srv/venvs/service/trusty/service_venv_python3.6/lib/python3.6/site-packages/apache_beam/runners/worker/bundle_processor.py", > line 602, in <dictcomp> > for tag, pcoll_id > File > "/srv/venvs/service/trusty/service_venv_python3.6/lib/python3.6/site-packages/apache_beam/runners/worker/bundle_processor.py", > line 601, in <listcomp> > tag: [get_operation(op) for op in pcoll_consumers[pcoll_id]] > File > "/srv/venvs/service/trusty/service_venv_python3.6/lib/python3.6/site-packages/apache_beam/runners/worker/bundle_processor.py", > line 544, in wrapper > result = cache[args] = func(*args) > File > "/srv/venvs/service/trusty/service_venv_python3.6/lib/python3.6/site-packages/apache_beam/runners/worker/bundle_processor.py", > line 603, in get_operation > in descriptor.transforms[transform_id].outputs.items() > File > "/srv/venvs/service/trusty/service_venv_python3.6/lib/python3.6/site-packages/apache_beam/runners/worker/bundle_processor.py", > line 602, in <dictcomp> > for tag, pcoll_id > File > "/srv/venvs/service/trusty/service_venv_python3.6/lib/python3.6/site-packages/apache_beam/runners/worker/bundle_processor.py", > line 601, in <listcomp> > tag: [get_operation(op) for op in pcoll_consumers[pcoll_id]] > File > "/srv/venvs/service/trusty/service_venv_python3.6/lib/python3.6/site-packages/apache_beam/runners/worker/bundle_processor.py", > line 544, in wrapper > result = cache[args] = func(*args) > File > "/srv/venvs/service/trusty/service_venv_python3.6/lib/python3.6/site-packages/apache_beam/runners/worker/bundle_processor.py", > line 606, in get_operation > transform_id, transform_consumers) > File > "/srv/venvs/service/trusty/service_venv_python3.6/lib/python3.6/site-packages/apache_beam/runners/worker/bundle_processor.py", > line 865, in create_operation > return creator(self, transform_id, transform_proto, payload, consumers) > File > "/srv/venvs/service/trusty/service_venv_python3.6/lib/python3.6/site-packages/apache_beam/runners/worker/bundle_processor.py", > line 1108, in create > serialized_fn, parameter) > File > "/srv/venvs/service/trusty/service_venv_python3.6/lib/python3.6/site-packages/apache_beam/runners/worker/bundle_processor.py", > line 1146, in _create_pardo_operation > dofn_data = pickler.loads(serialized_fn) > File > "/srv/venvs/service/trusty/service_venv_python3.6/lib/python3.6/site-packages/apache_beam/internal/pickler.py", > line 265, in loads > return dill.loads(s) > File > "/srv/venvs/service/trusty/service_venv_python3.6/lib/python3.6/site-packages/dill/_dill.py", > line 317, in loads > return load(file, ignore) > File > "/srv/venvs/service/trusty/service_venv_python3.6/lib/python3.6/site-packages/dill/_dill.py", > line 305, in load > obj = pik.load() > File > "/srv/venvs/service/trusty/service_venv_python3.6/lib/python3.6/site-packages/dill/_dill.py", > line 474, in find_class > return StockUnpickler.find_class(self, module, name) > AttributeError: Can't get attribute '_timestamp_keyed_result' on <module > 'pricingrealtime.aggregation.aggregation_transform' from > '/srv/testpricingrt/7e5425fc4400bf14e80a98fb13461530c7867891/pricingrealtime/aggregation/aggregation_transform.py'> > >
