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Date: Mon, 18 Apr 2011 19:48:06 +0000 (UTC)
From: "stack (JIRA)" <jira@apache.org>
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Subject: [jira] [Commented] (HBASE-3781) hbase shell cannot start
 "NoMethodError: undefined method `close' for nil:NilClass"
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    [ https://issues.apache.org/jira/browse/HBASE-3781?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13021207#comment-13021207 ] 

stack commented on HBASE-3781:
------------------------------

Oh, you seem to not use the DEV_NULL you've worked out in the patch... on commit I fix this.

> hbase shell cannot start "NoMethodError: undefined method `close' for nil:NilClass"
> -----------------------------------------------------------------------------------
>
>                 Key: HBASE-3781
>                 URL: https://issues.apache.org/jira/browse/HBASE-3781
>             Project: HBase
>          Issue Type: Bug
>          Components: shell
>    Affects Versions: 0.90.2
>         Environment: windows 7, cygwin
>            Reporter: Mikael Sitruk
>             Fix For: 0.92.0
>
>         Attachments: HBASE-3781-0.90.2.patch
>
>
> After following the instruction for installing hbase on windows with cygwin, and trying to run the hbase shell i got the following error
> NoMethodError: undefined method `close' for nil:NilClass
>   initialize at C:/_servers/db/hbase/V090~1.2//bin/../lib/ruby/irb/hirb.rb:39
>        start at C:\_servers\db\hbase\V090~1.2\/bin/hirb.rb:171
>       (root) at C:\_servers\db\hbase\V090~1.2\/bin/hirb.rb:183
> After a while of investigation it seems that the error comes from the fact that "/dev/null" is not functioning as expected. When changing to "NUL" (in lib/ruby/irb/hirb.rb line 34), which is window equivalent, the shell worked ok.
> The fix 
> change:  f = File.open("/dev/null", "w") to f = File.open("NUL", "w")

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