Hive doesn’t like the carriage return character

Have you ever run in to a situation where you count the number of rows for a table in a database, then dump it to CSV and then load it to HIVE only to find that number has changed? Well, you probably have carriage returns in your fields. HIVE reads a carriage return similar to a new line which means end of row. Here’s a link I found that describes it:

http://grokbase.com/t/hive/user/111v7jva3f/newlines-in-data

You have to manually clean the \r from the file. One option is to use the unix command transliterate:

cat yourfile | tr -d "\r" > newfile
 
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Creating Presentations with Reveal.js

Late last year, I gave a talk at the Sift Science office in San Francisco on “Hadoop at Lookout - how Lookout uses the hadoop infrastructure to power internal analytics”. I used Reveal.js to present the talk in my browser! Reveal.js is a... Continue →