[
https://issues.apache.org/jira/browse/BEAM-10054?focusedWorklogId=436073&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-436073
]
ASF GitHub Bot logged work on BEAM-10054:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 21/May/20 16:06
Start Date: 21/May/20 16:06
Worklog Time Spent: 10m
Work Description: mxm opened a new pull request #11777:
URL: https://github.com/apache/beam/pull/11777
We have a test pipeline which runs with the DirectRunner. When upgrading
from 2.18.0 to 2.21.0 the test failed with the following exception:
```
tp = Exception('Monitor task detected a pipeline stall.',), value = None, tb
= None
def raise_(tp, value=None, tb=None):
"""
A function that matches the Python 2.x ``raise`` statement. This
allows re-raising exceptions with the cls value and traceback on
Python 2 and 3.
"""
if value is not None and isinstance(tp, Exception):
raise TypeError("instance exception may not have a separate
value")
if value is not None:
exc = tp(value)
else:
exc = tp
if exc.__traceback__ is not tb:
raise exc.with_traceback(tb)
> raise exc
E Exception: Monitor task detected a pipeline stall.
```
I was able to bisect the error. This commit introduced the failure:
ea9b1f350b88c2996cafb4d24351869e82857731
The fix lets to the pipeline running correctly.
Post-Commit Tests Status (on master branch)
------------------------------------------------------------------------------------------------
Lang | SDK | Apex | Dataflow | Flink | Gearpump | Samza | Spark
--- | --- | --- | --- | --- | --- | --- | ---
Go | [](https://builds.apache.org/job/beam_PostCommit_Go/lastCompletedBuild/)
| --- | --- | [](https://builds.apache.org/job/beam_PostCommit_Go_VR_Flink/lastCompletedBuild/)
| --- | --- | [](https://builds.apache.org/job/beam_PostCommit_Go_VR_Spark/lastCompletedBuild/)
Java | [](https://builds.apache.org/job/beam_PostCommit_Java/lastCompletedBuild/)
| [](https://builds.apache.org/job/beam_PostCommit_Java_ValidatesRunner_Apex/lastCompletedBuild/)
| [](https://builds.apache.org/job/beam_PostCommit_Java_ValidatesRunner_Dataflow/lastCompletedBuild/)<br>[](https://builds.apache.org/job/beam_PostCommit_Java_ValidatesRunner_Dataflow_Java11/lastCompletedBuild/)
| [](https://builds.apache.org/job/beam_PostCommit_Java_ValidatesRunner_Flink/lastCompletedBuild/)<br>[](https://builds.apache.org/job/beam_PostCommit_Java_ValidatesRunner_Flink_Java11/lastCompletedBuild/)<br>[](https://builds.apache.org/job/beam_PostCommit_Java_PVR_Flink_Batch/lastCompletedBuild/)<br>[](https://builds.apache.org/job/beam_PostCommit_Java_PVR_Flink_Streaming/lastCompletedBuild/)
| [](https://builds.apache.org/job/beam_PostCommit_Java_ValidatesRunner_Gearpump/lastCompletedBuild/)
| [](https://builds.apache.org/job/beam_PostCommit_Java_ValidatesRunner_Samza/lastCompletedBuild/)
| [](https://builds.apache.org/job/beam_PostCommit_Java_ValidatesRunner_Spark/lastCompletedBuild/)<br>[](https://builds.apache.org/job/beam_PostCommit_Java_PVR_Spark_Batch/lastCompletedBuild/)<br>[](https://builds.apache.org/job/beam_PostCommit_Java_ValidatesRunner_SparkStructuredStreaming/lastCompletedBuild/)
Python | [](https://builds.apache.org/job/beam_PostCommit_Python2/lastCompletedBuild/)<br>[](https://builds.apache.org/job/beam_PostCommit_Python35/lastCompletedBuild/)<br>[](https://builds.apache.org/job/beam_PostCommit_Python36/lastCompletedBuild/)<br>[](https://builds.apache.org/job/beam_PostCommit_Python37/lastCompletedBuild/)
| --- | [](https://builds.apache.org/job/beam_PostCommit_Py_VR_Dataflow/lastCompletedBuild/)<br>[](https://builds.apache.org/job/beam_PostCommit_Py_VR_Dataflow_V2/lastCompletedBuild/)<br>[](https://builds.apache.org/job/beam_PostCommit_Py_ValCont/lastCompletedBuild/)
| [](https://builds.apache.org/job/beam_PreCommit_Python2_PVR_Flink_Cron/lastCompletedBuild/)<br>[](https://builds.apache.org/job/beam_PostCommit_Python35_VR_Flink/lastCompletedBuild/)
| --- | --- | [](https://builds.apache.org/job/beam_PostCommit_Python_VR_Spark/lastCompletedBuild/)
XLang | --- | --- | --- | [](https://builds.apache.org/job/beam_PostCommit_XVR_Flink/lastCompletedBuild/)
| --- | --- | [](https://builds.apache.org/job/beam_PostCommit_XVR_Spark/lastCompletedBuild/)
Pre-Commit Tests Status (on master branch)
------------------------------------------------------------------------------------------------
--- |Java | Python | Go | Website
--- | --- | --- | --- | ---
Non-portable | [](https://builds.apache.org/job/beam_PreCommit_Java_Cron/lastCompletedBuild/)
| [](https://builds.apache.org/job/beam_PreCommit_Python_Cron/lastCompletedBuild/)<br>[](https://builds.apache.org/job/beam_PreCommit_PythonLint_Cron/lastCompletedBuild/)
| [](https://builds.apache.org/job/beam_PreCommit_Go_Cron/lastCompletedBuild/)
| [](https://builds.apache.org/job/beam_PreCommit_Website_Cron/lastCompletedBuild/)
Portable | --- | [](https://builds.apache.org/job/beam_PreCommit_Portable_Python_Cron/lastCompletedBuild/)
| --- | ---
See
[.test-infra/jenkins/README](https://github.com/apache/beam/blob/master/.test-infra/jenkins/README.md)
for trigger phrase, status and link of all Jenkins jobs.
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Issue Time Tracking
-------------------
Worklog Id: (was: 436073)
Remaining Estimate: 0h
Time Spent: 10m
> Direct Runner execution stalls with test pipeline
> -------------------------------------------------
>
> Key: BEAM-10054
> URL: https://issues.apache.org/jira/browse/BEAM-10054
> Project: Beam
> Issue Type: Bug
> Components: sdk-py-core
> Reporter: Maximilian Michels
> Assignee: Maximilian Michels
> Priority: P2
> Time Spent: 10m
> Remaining Estimate: 0h
>
> Internally, we have a test pipeline which runs with the DirectRunner. When
> upgrading from 2.18.0 to 2.21.0 the test failed with the following exception:
> {noformat}
> tp = Exception('Monitor task detected a pipeline stall.',), value = None, tb
> = None
> def raise_(tp, value=None, tb=None):
> """
> A function that matches the Python 2.x ``raise`` statement. This
> allows re-raising exceptions with the cls value and traceback on
> Python 2 and 3.
> """
> if value is not None and isinstance(tp, Exception):
> raise TypeError("instance exception may not have a separate
> value")
> if value is not None:
> exc = tp(value)
> else:
> exc = tp
> if exc.__traceback__ is not tb:
> raise exc.with_traceback(tb)
> > raise exc
> E Exception: Monitor task detected a pipeline stall.
> {noformat}
> I was able to bisect the error. This commit introduced the failure:
> https://github.com/apache/beam/commit/ea9b1f350b88c2996cafb4d24351869e82857731
> If the following conditions evaluates to False, the pipeline runs correctly:
> https://github.com/apache/beam/commit/ea9b1f350b88c2996cafb4d24351869e82857731#diff-2bb845e226f3a97c0f0f737d0558c5dbR1273
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