[GitHub] [airflow] jithin97 opened a new pull request #7159: [AIRFLOW-6553] [UI] Add upstream_failed in instance state filter

[GitBox]

jithin97 opened a new pull request #7159: [AIRFLOW-6553] [UI] Add 
upstream_failed in instance state filter
URL: https://github.com/apache/airflow/pull/7159
 
 
   ### Description
   Current Airflow Web UI doesn't show `upstream_failed` failed filter in graph 
and tree view of the executed task.
   
   **Example**:
   <img width="488" alt="Screen Shot 2020-01-13 at 15 03 50" 
src="https://user-images.githubusercontent.com/13610191/72310195-7dc87300-36c4-11ea-9146-cce59e58c389.png";>
   
   ---
   Issue link: WILL BE INSERTED BY 
[boring-cyborg](https://github.com/kaxil/boring-cyborg)
   
   Make sure to mark the boxes below before creating PR: [x]
   
   - [x] Description above provides context of the change
   - [x] Commit message/PR title starts with `[AIRFLOW-NNNN]`. AIRFLOW-NNNN = 
JIRA ID<sup>*</sup>
   - [x] Unit tests coverage for changes (not needed for documentation changes)
   - [x] Commits follow "[How to write a good git commit 
message](http://chris.beams.io/posts/git-commit/)"
   - [x] Relevant documentation is updated including usage instructions.
   - [x] I will engage committers as explained in [Contribution Workflow 
Example](https://github.com/apache/airflow/blob/master/CONTRIBUTING.rst#contribution-workflow-example).
   
   <sup>*</sup> For document-only changes commit message can start with 
`[AIRFLOW-XXXX]`.
   
   ---
   In case of fundamental code change, Airflow Improvement Proposal 
([AIP](https://cwiki.apache.org/confluence/display/AIRFLOW/Airflow+Improvements+Proposals))
 is needed.
   In case of a new dependency, check compliance with the [ASF 3rd Party 
License Policy](https://www.apache.org/legal/resolved.html#category-x).
   In case of backwards incompatible changes please leave a note in 
[UPDATING.md](https://github.com/apache/airflow/blob/master/UPDATING.md).
   Read the [Pull Request 
Guidelines](https://github.com/apache/airflow/blob/master/CONTRIBUTING.rst#pull-request-guidelines)
 for more information.
   

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