phani8996 opened a new pull request #3988: [AIRFLOW-620] Add a dropdown and 
refresh button to tail selected number of lines from worker log
URL: https://github.com/apache/incubator-airflow/pull/3988
 
 
   Dear Airflow Maintainers,
   
   This is a change in the way we render logs. This PR will give a dropdown of 
number of lines to be tailed with a refresh button. On refresh webserver fetch 
selected number of lines from local worker logs or remote worker logs. On can 
toggle this feature using config variable `tail_logs` in `webserver`, default 
number of lines to tail via config variable `num_lines ` in `webserver` and 
items in dropdown can be controlled via config variable `tail_lines_list ` in 
`webserver` in csv format
   
   Please accept this PR that addresses the following issues:
   https://issues.apache.org/jira/browse/AIRFLOW-620
   
   **Testing Done:**
   
   Manually tested on all major browsers.
   `This will add a dropdown of number of lines to be tailed and refresh button 
to get latest logs instead of refreshing the whole page.`

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