http://www.datastax.com/support-forums/topic/callback-on-insert-or-update Software, Support, and Training for Apache Cassandra en-US Thu, 23 May 2013 16:27:09 +0000 http://bbpress.org/?v=1.0.3 q http://www.datastax.com/support-forums/search.php http://www.datastax.com/support-forums/topic/callback-on-insert-or-update#post-1171 Fri, 17 Feb 2012 08:34:54 +0000 Anonymous 1171@http://www.datastax.com/support-forums/ <p>Thanks for the feedback. I'm going to attempt to have to duplicate data by using CQL and the JDBC driver. </p> http://www.datastax.com/support-forums/topic/callback-on-insert-or-update#post-1081 Thu, 02 Feb 2012 06:54:39 +0000 Anonymous 1081@http://www.datastax.com/support-forums/ <p>I think not out of the box but you need to implement in your application logic. Meaning if success is return back from cassandra then you can trigger JMS message to RDBMS. Alternatively, you can write only changed rowkeys into another CF and periodically transfers the data from cassandra to RDBMS. </p> http://www.datastax.com/support-forums/topic/callback-on-insert-or-update#post-1054 Wed, 18 Jan 2012 12:26:24 +0000 Anonymous 1054@http://www.datastax.com/support-forums/ <p>I'm considering storing an abstract of the data in Cassandra in a regular RDBMS so reporting tools can use them. Cassandra will contain the core data, while a regular RDBMS may add more contextual data that does not need to clutter up the network connections because it is being replicated. </p> <p>In order to implement this in a good and stable style, I would like to have some kind of notification system whenever a Cassandra nodes updates a CF. Maybe a callback or listener similar to IEndPointStateChangeSubscriber, but then on CF. </p> <p>Is this possible? </p>