[GitHub] [airflow] kevlubkcm edited a comment on issue #15279: Error on logging empty line to Cloudwatch

[GitBox <gi...@apache.org>]

kevlubkcm edited a comment on issue #15279:
URL: https://github.com/apache/airflow/issues/15279#issuecomment-909509739


   i am also seeing this error even with apparently the latest versions:
   
   ```
   apache-airflow==2.1.3
   apache-airflow-providers-amazon==2.1.0
   ...
   watchtower==1.0.6
   ```
   
   ```
   [2021-08-31 18:33:50,305] /<home dir>/lib/python3.9/site-packages/watchtower/__init__.py:201 WatchtowerWarning: Failed to deliver logs: Parameter validation failed:
   Invalid length for parameter logEvents[19].message, value: 0, valid min length: 1
   Invalid length for parameter logEvents[21].message, value: 0, valid min length: 1
   [2021-08-31 18:33:50,308] /<home dir>/lib/python3.9/site-packages/watchtower/__init__.py:205 WatchtowerWarning: Failed to deliver logs: None
   ```
   
   it is difficult to debug as the log gets truncated. not sure where the blanks are coming from. the underlying `BashOperator` `TaskInstance` should not be generating any blank log lines.
   
   is it easy to setup airflow to log to two locations simultaneously?


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