Rodrigo Martins de Oliveira created AIRFLOW-5039:
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Summary: xcom_push execution_date setting is broken when
core.enable_xcom_pickling=False
Key: AIRFLOW-5039
URL: https://issues.apache.org/jira/browse/AIRFLOW-5039
Project: Apache Airflow
Issue Type: Bug
Components: xcom
Affects Versions: 1.10.3, 1.10.2
Reporter: Rodrigo Martins de Oliveira
Function [xcom_push from airflow.models.taskinstance automatically sets the
execution_date to
XCOM|https://github.com/apache/airflow/blob/7f66d0a6dc13a790b4d2d31694cb50737983f82e/airflow/models/taskinstance.py#L1336],
while this is fine when pickling is enabled it just won't work when it isn't
as [XCOM will attempt to JSON serialize a `datetime`
object|https://github.com/apache/airflow/blob/7f66d0a6dc13a790b4d2d31694cb50737983f82e/airflow/models/xcom.py#L229],
which is unsupported.
This issue is critical as having pickle enabled poses security risks and [in
environments such as Google Cloud Composer pickling is disabled for
good|[https://cloud.google.com/composer/docs/concepts/airflow-configurations]].
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