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From Ramakishore Yelamanchilli <kyela...@cisco.com>
Subject RE: hwo to read a text file in Map function until reaching specific line
Date Fri, 26 Jun 2009 17:35:54 GMT
I think map function gets the line number as key. You can ignore te other
lines after the key value 500.

Thanks

-----Original Message-----
From: Leiz [mailto:lzhang32@gmail.com] 
Sent: Friday, June 26, 2009 8:57 AM
To: core-user@hadoop.apache.org
Subject: hwo to read a text file in Map function until reaching specific
line


For example , I have a text file with 1000 lines.
I only want to read the first 500 line of the file.
How can I do in Map function?

Thanks


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