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From "Steve Loughran (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-13140) GlobalStorageStatistics should check null FileSystem scheme to avoid NPE
Date Fri, 13 May 2016 09:52:12 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-13140?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15282579#comment-15282579
] 

Steve Loughran commented on HADOOP-13140:
-----------------------------------------

It's probably something just done in tests. Why not have a special schema for those without
schemas, say "schemaless" which they can all share?

> GlobalStorageStatistics should check null FileSystem scheme to avoid NPE
> ------------------------------------------------------------------------
>
>                 Key: HADOOP-13140
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13140
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: fs
>    Affects Versions: 2.8.0
>            Reporter: Brahma Reddy Battula
>            Assignee: Mingliang Liu
>         Attachments: HADOOP-13140.000.patch
>
>
> {{org.apache.hadoop.fs.GlobalStorageStatistics#put}} is not checking the null scheme,
and the internal map will complain NPE. This was reported by a flaky test {{TestFileSystemApplicationHistoryStore}}.
Thanks [~brahmareddy] for reporting.
> To address this,
> # Fix the test by providing a valid URI, e.g. {{file:///}}
> # Guard the null scheme in {{GlobalStorageStatistics#put}}



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