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Posted to commits@airflow.apache.org by GitBox <gi...@apache.org> on 2020/05/08 12:31:07 UTC

[GitHub] [airflow] mshalak-nix commented on issue #8760: Webserver becomes unusable after 100,000 tasks were completed

mshalak-nix commented on issue #8760:
URL: https://github.com/apache/airflow/issues/8760#issuecomment-625792761


   Looks like I figured it out. The issue was with prometheus exporter I used, here is the fix: https://github.com/robinhood/airflow-prometheus-exporter/pull/25
   It generated wrong joins, which lead to one metric repetition multiple times. Since the Prometheus endpoint was server by a web server, it constantly had to execute DB query which produced thousands of metric duplicates (depending on amount of tasks in DB), that's why web server was so slow.
   So closing this issue.


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