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From "Apache Spark (Jira)" <j...@apache.org>
Subject [jira] [Commented] (SPARK-31935) Hadoop file system config should be effective in data source options
Date Thu, 02 Jul 2020 04:08:00 GMT

    [ https://issues.apache.org/jira/browse/SPARK-31935?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17149799#comment-17149799
] 

Apache Spark commented on SPARK-31935:
--------------------------------------

User 'cloud-fan' has created a pull request for this issue:
https://github.com/apache/spark/pull/28973

> Hadoop file system config should be effective in data source options 
> ---------------------------------------------------------------------
>
>                 Key: SPARK-31935
>                 URL: https://issues.apache.org/jira/browse/SPARK-31935
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 2.4.6, 3.0.0
>            Reporter: Gengliang Wang
>            Assignee: Gengliang Wang
>            Priority: Major
>             Fix For: 2.4.7, 3.0.1, 3.1.0
>
>
> Data source options should be propagated into the hadoop configuration of method `checkAndGlobPathIfNecessary`
> From org.apache.hadoop.fs.FileSystem.java:
> {code:java}
>   public static FileSystem get(URI uri, Configuration conf) throws IOException {
>     String scheme = uri.getScheme();
>     String authority = uri.getAuthority();
>     if (scheme == null && authority == null) {     // use default FS
>       return get(conf);
>     }
>     if (scheme != null && authority == null) {     // no authority
>       URI defaultUri = getDefaultUri(conf);
>       if (scheme.equals(defaultUri.getScheme())    // if scheme matches default
>           && defaultUri.getAuthority() != null) {  // & default has authority
>         return get(defaultUri, conf);              // return default
>       }
>     }
>     
>     String disableCacheName = String.format("fs.%s.impl.disable.cache", scheme);
>     if (conf.getBoolean(disableCacheName, false)) {
>       return createFileSystem(uri, conf);
>     }
>     return CACHE.get(uri, conf);
>   }
> {code}
> With this, we can specify URI schema and authority related configurations for scanning
file systems.



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