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https://issues.apache.org/jira/browse/AIRFLOW-502?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16686194#comment-16686194
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ASF GitHub Bot commented on AIRFLOW-502:
----------------------------------------
ron819 closed pull request #4075: [AIRFLOW-502] BashOperator success/failure
conditions not documented
URL: https://github.com/apache/incubator-airflow/pull/4075
This is a PR merged from a forked repository.
As GitHub hides the original diff on merge, it is displayed below for
the sake of provenance:
As this is a foreign pull request (from a fork), the diff is supplied
below (as it won't show otherwise due to GitHub magic):
diff --git a/airflow/operators/bash_operator.py
b/airflow/operators/bash_operator.py
index f9c2e1bbc0..1cdf8ed717 100644
--- a/airflow/operators/bash_operator.py
+++ b/airflow/operators/bash_operator.py
@@ -49,6 +49,16 @@ class BashOperator(BaseOperator):
:type env: dict
:param output_encoding: Output encoding of bash command
:type output_encoding: str
+
+ On execution of the operator the task will up for retry when exception is
raised.
+ However if a sub-command exists with non-zero value Airflow will not
recognize
+ it as failure unless the whole shell exits with a failure. The easiest way
of
+ achieving this is to prefix the command with ``set -e;``
+ Example:
+ bash_command = "python3 script.py '{{ next_execution_date }}'"
+ when executing command exit(1) the task will be marked as success.
+ bash_command = "set -e; python3 script.py '{{ next_execution_date }}'"
+ when executing command ``exit(1)`` the task will be marked as up for
retry.
"""
template_fields = ('bash_command', 'env')
template_ext = ('.sh', '.bash',)
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> BashOperator success/failure conditions not documented
> ------------------------------------------------------
>
> Key: AIRFLOW-502
> URL: https://issues.apache.org/jira/browse/AIRFLOW-502
> Project: Apache Airflow
> Issue Type: Improvement
> Components: docs
> Reporter: Li Xuanji
> Assignee: Li Xuanji
> Priority: Major
>
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