[jira] [Resolved] (AIRFLOW-2895) Prevent scheduler from spamming heartbeats/logs

["Ash Berlin-Taylor (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/AIRFLOW-2895?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ash Berlin-Taylor resolved AIRFLOW-2895.
----------------------------------------
       Resolution: Fixed
    Fix Version/s: 1.10.1

> Prevent scheduler from spamming heartbeats/logs
> -----------------------------------------------
>
>                 Key: AIRFLOW-2895
>                 URL: https://issues.apache.org/jira/browse/AIRFLOW-2895
>             Project: Apache Airflow
>          Issue Type: Bug
>          Components: scheduler
>            Reporter: Dan Davydov
>            Assignee: Dan Davydov
>            Priority: Major
>             Fix For: 1.10.1
>
>
> There seems to be a couple of problems with [https://github.com/apache/incubator-airflow/pull/2986] that cause the sleep to not trigger and Scheduler heartbeating/logs to be spammed:
>  # If all of the files are being processed in the queue, there is no sleep (can be fixed by sleeping for min_sleep even if there are no files)
>  # I have heard reports that some files can return a parsing time that is monotonically increasing for some reason (e.g. file actually parses in 1s each loop, but the reported duration seems to use the very time the file was parsed as the start time instead of the last time), I haven't confirmed this but it sounds problematic.
> To unblock the release I'm reverting this PR for now. It should be re-added with tests/mocking.



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