Fix broken link
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index efda237..0bc44ae 100644
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@@ -52,7 +52,7 @@
Cassandra <a href="http://vldb.org/pvldb/vol5/p1724_tilmannrabl_vldb2012.pdf">consistently</a>
<a href="http://www.datastax.com/resources/whitepapers/benchmarking-top-nosql-databases">outperforms</a> popular
NoSQL alternatives in benchmarks and <a href="http://blog.markedup.com/2013/02/cassandra-hive-and-hadoop-how-we-picked-our-analytics-stack/">real applications</a>,
- primarily because of <a href="http://www.datastax.com/dev/blog/2012-in-review-performance">fundamental architectural choices</a>.
+ primarily because of <a href="https://www.datastax.com/blog/2013/01/2012-review-performance">fundamental architectural choices</a>.
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