Re: Atomicity of batch updates
See http://wiki.apache.org/cassandra/FAQ#batch_mutate_atomic Cheers - Aaron Morton Freelance Cassandra Developer @aaronmorton http://www.thelastpickle.com On 16 Jun 2011, at 06:26, chovatia jaydeep wrote: Cassandra write operation is atomic for all the columns/super columns for a given row key in Column Family. So in your case not all previous operations (assuming each operation was on separate key) will be reverted. Thank you, Jaydeep From: Artem Orobets artem.orob...@exigenservices.com To: user@cassandra.apache.org user@cassandra.apache.org Cc: Andrey Lomakin andrey.loma...@exigenservices.com Sent: Wednesday, 15 June 2011 7:42 AM Subject: Atomicity of batch updates Hi, Wiki says that write operation is atomic within ColumnFamily (http://wiki.apache.org/cassandra/ArchitectureOverview chapter “write properties”). If I use batch update for single CF, and get an exception in last mutation operation, is it means that all previous operation will be reverted. If no, what means atomic in this context?
Atomicity of batch updates
Hi, Wiki says that write operation is atomic within ColumnFamily (http://wiki.apache.org/cassandra/ArchitectureOverview chapter write properties). If I use batch update for single CF, and get an exception in last mutation operation, is it means that all previous operation will be reverted. If no, what means atomic in this context?
Re: Atomicity of batch updates
Cassandra write operation is atomic for all the columns/super columns for a given row key in Column Family. So in your case not all previous operations (assuming each operation was on separate key) will be reverted. Thank you, Jaydeep From: Artem Orobets artem.orob...@exigenservices.com To: user@cassandra.apache.org user@cassandra.apache.org Cc: Andrey Lomakin andrey.loma...@exigenservices.com Sent: Wednesday, 15 June 2011 7:42 AM Subject: Atomicity of batch updates Hi, Wiki says that write operation is atomic within ColumnFamily (http://wiki.apache.org/cassandra/ArchitectureOverview chapter “write properties”). If I use batch update for single CF, and get an exception in last mutation operation, is it means that all previous operation will be reverted. If no, what means atomic in this context?
