http://www.datastax.com/support-forums/topic/batch-mutation-limits Software, Support, and Training for Apache Cassandra en-US Sun, 19 May 2013 15:48:05 +0000 http://bbpress.org/?v=1.0.3 q http://www.datastax.com/support-forums/search.php http://www.datastax.com/support-forums/topic/batch-mutation-limits#post-8023 Wed, 19 Dec 2012 17:27:47 +0000 nickmbailey 8023@http://www.datastax.com/support-forums/ <p>It generally depends on your specific application. The maximum thrift message size is 16MB, but you will want to stay *well* within that limit.</p> <p>The main trade off with batch mutations is that a single row in the mutation failing causes the entire mutation to fail. Since you don't know what part failed you will need to retry the entire mutation. For this reason it's often recommended to use the smallest sizes you need (or no batches) in order to get the performance you need. </p> http://www.datastax.com/support-forums/topic/batch-mutation-limits#post-8022 Wed, 19 Dec 2012 16:09:21 +0000 tamar 8022@http://www.datastax.com/support-forums/ <p>Newbee question:</p> <p>What is a reasonable number of rows to enter using a single batch mutation?<br /> Is the number of a rows a factor, the number of columns, or the total amount of data?<br /> Are there limits? Are there any configurations that need to be examined/adjusted? </p>