ashb opened a new pull request #14456:
URL: https://github.com/apache/airflow/pull/14456
If the JSON logging mode for Elasticsearch logs is enabled, the
handle_failure function would fail, as it tried to treat the exception
object as the message and try to JSON serialize it (it expected a
string) -- which fails with:
```
TypeError: Object of type type is not JSON serializable
...
File
"/usr/local/lib/python3.7/site-packages/airflow/models/taskinstance.py", line
1150, in handle_failure
self.log.exception(error)
...
File
"/usr/local/lib/python3.7/site-packages/airflow/utils/log/file_task_handler.py",
line 63, in emit
self.handler.emit(record)
```
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