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https://issues.apache.org/jira/browse/AIRFLOW-2222?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Work on AIRFLOW-2222 started by Berislav Lopac.
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> GoogleCloudStorageHook.copy fails for large files between locations
> -------------------------------------------------------------------
>
> Key: AIRFLOW-2222
> URL: https://issues.apache.org/jira/browse/AIRFLOW-2222
> Project: Apache Airflow
> Issue Type: Bug
> Reporter: Berislav Lopac
> Assignee: Berislav Lopac
> Priority: Major
>
> When copying large files (confirmed for around 3GB) between buckets in
> different projects, the operation fails and the Google API returns error
> [413—Payload Too
> Large|https://cloud.google.com/storage/docs/json_api/v1/status-codes#413_Payload_Too_Large].
> The documentation for the error says:
> {quote}The Cloud Storage JSON API supports up to 5 TB objects.
> This error may, alternatively, arise if copying objects between locations
> and/or storage classes can not complete within 30 seconds. In this case, use
> the
> [Rewrite|https://cloud.google.com/storage/docs/json_api/v1/objects/rewrite]
> method instead.{quote}
> The reason seems to be that the {{GoogleCloudStorageHook.copy}} is using the
> API {{copy}} method.
> h3. Proposed Solution
> There are two potential solutions:
> # Implement {{GoogleCloudStorageHook.rewrite}} method which can be called
> from operators and other objects to ensure successful execution. This method
> is more flexible but requires changes both in the {{GoogleCloudStorageHook}}
> class and any other classes that use it for copying files to ensure that they
> explicitly call {{rewrite}} when needed.
> # Modify {{GoogleCloudStorageHook.copy}} to determine when to use {{rewrite}}
> instead of {{copy}} underneath. This requires updating only the
> {{GoogleCloudStorageHook}} class, but the logic might not cover all the edge
> cases and could be difficult to implement.
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