http://www.datastax.com/support-forums/topic/altering-rowkey-to-supportsimulate-multitenancy Software, Support, and Training for Apache Cassandra en-US Fri, 24 May 2013 02:33:45 +0000 http://bbpress.org/?v=1.0.3 q http://www.datastax.com/support-forums/search.php http://www.datastax.com/support-forums/topic/altering-rowkey-to-supportsimulate-multitenancy#post-3775 Wed, 25 Jul 2012 20:44:23 +0000 xedin 3775@http://www.datastax.com/support-forums/ <p>you need to set appropriate ColumnFamily key_validation_class, in CLI you can do that like "update column family &lt;cf&gt; with key_validation_class=&lt;type&gt;" where &lt;type&gt; could be one of the o.a.c.db.marshal.*Type classes or your own. </p> http://www.datastax.com/support-forums/topic/altering-rowkey-to-supportsimulate-multitenancy#post-3774 Wed, 25 Jul 2012 20:41:35 +0000 nvt 3774@http://www.datastax.com/support-forums/ <p>Hello,</p> <p>Can we prepend a string (tenant name) to the rowkey from client-side to support/simulate MultiTenancy? I got to the point of being able to successfully insert, but get fails with "String didn't validate". Appears Cassandra does some internal check/validation on the rowkey, obviously because it needs to keep track of the rowkeys, as to which node has which rowkeys, and/or its format.</p> <p>Any thoughts/ideas on why I get "String didn't validate"?</p> <p>Thanks<br /> Naga Vijay </p>