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https://issues.apache.org/jira/browse/AIRFLOW-2247?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16414413#comment-16414413
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ASF subversion and git services commented on AIRFLOW-2247:
----------------------------------------------------------
Commit 9b42fc9a1a036a63aeec22a7c7ab310447b376f2 in incubator-airflow's branch
refs/heads/master from [~sekikn]
[ https://git-wip-us.apache.org/repos/asf?p=incubator-airflow.git;h=9b42fc9 ]
[AIRFLOW-2247] Fix RedshiftToS3Transfer not to fail with ValueError
RedshiftToS3Transfer calls
S3Hook.get_credentials() and tries
to take the return value as a tuple with two
elements but fails.
This is because the return value is
ReadOnlyCredentials, which
should be handled as a single object or a tuple
with tree elements.
This PR fixes the above problem.
Closes #3158 from sekikn/AIRFLOW-2247
> Fix RedshiftToS3Transfer not to fail with ValueError
> ----------------------------------------------------
>
> Key: AIRFLOW-2247
> URL: https://issues.apache.org/jira/browse/AIRFLOW-2247
> Project: Apache Airflow
> Issue Type: Bug
> Components: aws, redshift
> Reporter: Kengo Seki
> Assignee: Kengo Seki
> Priority: Major
> Fix For: 2.0.0
>
>
> I tried to use RedshiftToS3Transfer but it failed with:
> {code}
> /path/to/incubator-airflow/airflow/operators/redshift_to_s3_operator.py in
> execute(self, context)
> 69 self.hook =
> PostgresHook(postgres_conn_id=self.redshift_conn_id)
> 70 self.s3 = S3Hook(aws_conn_id=self.aws_conn_id)
> ---> 71 a_key, s_key = self.s3.get_credentials()
> 72 unload_options = '\n\t\t\t'.join(self.unload_options)
> 73
> ValueError: too many values to unpack
> {code}
> This is occurred by unmatch between the number of variables and return
> values. As AwsHook.get_credentials' docstring says, it returns three values:
> {code}
> def get_credentials(self, region_name=None):
> """Get the underlying `botocore.Credentials` object.
> This contains the attributes: access_key, secret_key and token.
> """
> {code}
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