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https://issues.apache.org/jira/browse/HADOOP-13972?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16276919#comment-16276919
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Steve Loughran commented on HADOOP-13972:
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The S3A code should be pulled up to hadoop common for this; we don't want
different semantics of per4-bucket options
including the (as yet uncommitted) work on jceks support, where getPassword()
looks for the bucket keys ahead of any more general ones: HADOOP-14507
> ADLS to support per-store configuration
> ---------------------------------------
>
> Key: HADOOP-13972
> URL: https://issues.apache.org/jira/browse/HADOOP-13972
> Project: Hadoop Common
> Issue Type: Improvement
> Components: fs/adl
> Affects Versions: 3.0.0-alpha2
> Reporter: John Zhuge
>
> Useful when distcp needs to access 2 Data Lake stores with different SPIs.
> Of course, a workaround is to grant the same SPI access permission to both
> stores, but sometimes it might not be feasible.
> One idea is to embed the store name in the configuration property names,
> e.g., {{dfs.adls.oauth2.<store>.client.id}}. Per-store keys will be consulted
> first, then fall back to the global keys.
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