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https://issues.apache.org/jira/browse/AIRFLOW-4463?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16863040#comment-16863040
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ASF subversion and git services commented on AIRFLOW-4463:
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Commit b0a0dc96c340c068a70ea8e877ba137101403606 in airflow's branch
refs/heads/v1-10-stable from Chris Mitchell
[ https://gitbox.apache.org/repos/asf?p=airflow.git;h=b0a0dc9 ]
[AIRFLOW-4463] Handle divide-by-zero errors in short retry intervals (#5243)
(cherry picked from commit d1dceff69ab15f9ce28ea04215a693b81c8a93a2)
> Short DAG retries lead to a divide by zero-error
> ------------------------------------------------
>
> Key: AIRFLOW-4463
> URL: https://issues.apache.org/jira/browse/AIRFLOW-4463
> Project: Apache Airflow
> Issue Type: Bug
> Components: core
> Affects Versions: 1.10.3
> Reporter: Chris Mitchell
> Assignee: Chris Mitchell
> Priority: Minor
> Fix For: 1.10.4
>
>
> A short retry interval leads to a divide by zero error. To replicate, create
> a DAG with a short retry interval (1 second), and eventually the following
> error will appear:
> ```
> Traceback (most recent call last):
> ...
> File "/app/airflow/models/taskinstance.py", line 630, in next_retry_datetime
> modded_hash = min_backoff + hash % min_backoff
> ZeroDivisionError: integer division or modulo by zero
> ```
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