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From "Venki Korukanti (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DRILL-2413) FileSystemPlugin refactoring: avoid sharing DrillFileSystem across schemas
Date Fri, 20 Mar 2015 21:26:38 GMT

    [ https://issues.apache.org/jira/browse/DRILL-2413?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14372151#comment-14372151
] 

Venki Korukanti commented on DRILL-2413:
----------------------------------------

Review Board link: https://reviews.apache.org/r/32331/

> FileSystemPlugin refactoring: avoid sharing DrillFileSystem across schemas
> --------------------------------------------------------------------------
>
>                 Key: DRILL-2413
>                 URL: https://issues.apache.org/jira/browse/DRILL-2413
>             Project: Apache Drill
>          Issue Type: Sub-task
>          Components: Metadata, Storage - Information Schema
>            Reporter: Venki Korukanti
>            Assignee: Venki Korukanti
>             Fix For: 0.9.0
>
>         Attachments: DRILL-2413-1.patch
>
>
> Currently we create one DrillFileSystem (an extension of hadoop FileSystem) instance
and share it across all Workspaces created for all queries, FormatPlugins and FormatMatcher.
Remove the shared DrillFileSystem instead share the DrillFileSystem configuration and create
a DrillFileSystem in each Schema (WorkspaceSchema) using the current user credentials in Schema.
The same DrillFileSystem instances to passed to FormatPlugins and FormatMatchers whenever
Schemas need to access the file system.



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