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Date: Wed, 26 Mar 2008 13:51:25 -0700 (PDT)
From: "Tsz Wo (Nicholas), SZE (JIRA)" <jira@apache.org>
To: core-dev@hadoop.apache.org
Subject: [jira] Commented: (HADOOP-3064) Exception with file globbing
 closures
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    [ https://issues.apache.org/jira/browse/HADOOP-3064?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12582424#action_12582424 ] 

Tsz Wo (Nicholas), SZE commented on HADOOP-3064:
------------------------------------------------

FYI, all of the following return an empty array:
{code}
    System.out.println(Arrays.asList("".split(",")));
    System.out.println(Arrays.asList(",".split(",")));
    System.out.println(Arrays.asList(",,".split(",")));
{code}

> Exception with file globbing closures
> -------------------------------------
>
>                 Key: HADOOP-3064
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3064
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: mapred
>    Affects Versions: 0.16.1
>            Reporter: Tom White
>            Assignee: Hairong Kuang
>         Attachments: inputPath.patch, inputPath1.patch, inputPath2.patch
>
>
> Using file globbing to select various input paths, like so:
> conf.setInputPath(new Path("mr/input/glob/2008/02/{02,08}"));
> gives an exception:
> Exception in thread "main" java.io.IOException: Illegal file pattern:
> Expecting set closure character or end of range, or } for glob {02 at
> 3
>        at org.apache.hadoop.fs.FileSystem$GlobFilter.error(FileSystem.java:1023)
>        at org.apache.hadoop.fs.FileSystem$GlobFilter.setRegex(FileSystem.java:1008)
>        at org.apache.hadoop.fs.FileSystem$GlobFilter.<init>(FileSystem.java:926)
>        at org.apache.hadoop.fs.FileSystem.globStatus(FileSystem.java:826)
>        at org.apache.hadoop.fs.FileSystem.globPaths(FileSystem.java:873)
>        at org.apache.hadoop.mapred.FileInputFormat.validateInput(FileInputFormat.java:131)
>        at org.apache.hadoop.mapred.JobClient.submitJob(JobClient.java:541)
>        at org.apache.hadoop.mapred.JobClient.runJob(JobClient.java:809)
> The code for JobConf.getInputPaths tokenizes using
> a comma as the delimiter, producing two paths
> "mr/input/glob/2008/02/{02" and "08}".

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