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Posted to commits@airflow.apache.org by "Jarek Potiuk (Jira)" <ji...@apache.org> on 2019/09/05 15:55:00 UTC

[jira] [Resolved] (AIRFLOW-5072) gcs_hook causes out-of-memory error when downloading huge files

     [ https://issues.apache.org/jira/browse/AIRFLOW-5072?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jarek Potiuk resolved AIRFLOW-5072.
-----------------------------------
    Fix Version/s: 2.0.0
       Resolution: Fixed

> gcs_hook causes out-of-memory error when downloading huge files
> ---------------------------------------------------------------
>
>                 Key: AIRFLOW-5072
>                 URL: https://issues.apache.org/jira/browse/AIRFLOW-5072
>             Project: Apache Airflow
>          Issue Type: Bug
>          Components: gcp
>    Affects Versions: 1.10.3
>            Reporter: Tobias Kaymak
>            Assignee: Tobias Kaymak
>            Priority: Major
>             Fix For: 2.0.0
>
>
> Possibly there is an "else" missing here, but the gcs_hook's `download` method *always* downloads a blob as a string even when a filename was supplied. This causes the method to take twice as long when a filename is supplied and for huge blobs it can even cause out-of-memory errors.
> I think that there is an else missing?
> [https://github.com/apache/airflow/blob/05c01a97497e992c7d8b05a39a7855343dee1603/airflow/contrib/hooks/gcs_hook.py#L176]



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