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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-13972) ADLS to support per-store configuration
Date Tue, 13 Feb 2018 13:27:00 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-13972?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16362309#comment-16362309

ASF GitHub Bot commented on HADOOP-13972:

Github user steveloughran commented on a diff in the pull request:

    --- Diff: hadoop-tools/hadoop-azure-datalake/src/main/java/org/apache/hadoop/fs/adl/AdlFileSystem.java
    @@ -65,6 +66,8 @@
     import org.apache.hadoop.util.Progressable;
     import org.apache.hadoop.util.ReflectionUtils;
     import org.apache.hadoop.util.VersionInfo;
    +import org.slf4j.Logger;
    --- End diff --
    should be ordered according to the hadoop import ordering. I know we get this wrong, and
once its wrong we don't like to fix (it breaks all patches and cherry picking), but it's good
to try

> 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
>            Priority: Major
> 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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