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Brian has 10+ years of experience as a technology leader and architect in a wide variety of settings from early startups to Fortune 500 companies. With experience delivering SaaS solutions in business intelligence, artificial intelligence and VoIP, his current focus is big data and analytics. Brian leads the Virgil project on Apache Extras, which is a services layer built on Cassandra that provides REST, Map/Reduce, Search and Distributed Processing capabilities. Brian is a DZone MVB and is not an employee of DZone and has posted 43 posts at DZone. You can read more from them at their website. View Full User Profile

Dumping/Loading Schema in Cassandra

04.15.2012
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This handy command line will dump a schema from Cassandra:

echo -e "use your_keyspace;\r\n show schema;\n" | bin/cassandra-cli -h localhost > mySchema.cdl
I always forget the "-e" on echo, which is why I thought I would blog this.  We've started using ".cdl" as the extension, short for "Cassandra DDL".

Coincidentally, you can then load it with: 
bin/cassandra-cli -h localhost -f mySchema.cdl
Hope people find this useful.
Published at DZone with permission of Brian O' Neill, author and DZone MVB. (source)

(Note: Opinions expressed in this article and its replies are the opinions of their respective authors and not those of DZone, Inc.)

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