[jira] [Commented] (AIRFLOW-4484) CeleryExecutor#sync timesout when fetching celery task state

["Teresa Martyny (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/AIRFLOW-4484?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16837582#comment-16837582 ] 

Teresa Martyny commented on AIRFLOW-4484:
-----------------------------------------

[~yrqls21] Any insight would be very welcome :) Thanks!

> CeleryExecutor#sync timesout when fetching celery task state
> ------------------------------------------------------------
>
>                 Key: AIRFLOW-4484
>                 URL: https://issues.apache.org/jira/browse/AIRFLOW-4484
>             Project: Apache Airflow
>          Issue Type: Bug
>          Components: celery
>    Affects Versions: 1.10.3
>            Reporter: Teresa Martyny
>            Priority: Major
>
> We're seeing a quite a few process time outs raising during our core pipeline run. We traced it back to CeleryExecutor#sync calling #fetch_celery_task_state and timing out here:
>  
> airflow/utils/timeout.py:
> ```
> def handle_timeout(self, signum, frame):
>  self.log.error("Process timed out, PID: %s", str(os.getpid()))
>  raise AirflowTaskTimeout(self.error_message)
> ```
> called from here: airflow/executors/celery_executor.py#fetch_celery_task_state
> ```
> with timeout(seconds=2):
>  # Accessing state property of celery task will make actual network request
>  # to get the current state of the task.
>  res = (celery_task[0], celery_task[1].state) 
> ```
> along with an AirflowTaskTimeout raising here: airflow/executors/celery_executor.py#heartbeat
> ```
> if isinstance(result, ExceptionWithTraceback): 
> self.log.error(
> CELERY_SEND_ERR_MSG_HEADER + ":{}\n{}\n".format(
> result.exception, result.traceback))
> ```
>  
> This code was introduced in this new feature:
> https://issues.apache.org/jira/browse/AIRFLOW-2761
> Are there configuration settings that we need to set as a result of this new code to avoid these timeouts?



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