Take a look at https://issues.apache.org/jira/browse/CASSANDRA-494
https://issues.apache.org/jira/browse/CASSANDRA-1027 On 22.06.2010 19:00, Ron wrote: > Hi everyone, > I'm a new user of Cassandra, and during my tests, I've encountered a > problem with deleting rows from CFs. > I use Cassandra 0.6.2 and coding in Java, using the native Java Thrift API. > > The way my application works, I need to delete multiple rows at a time > (just like reads and writes). > Obviously, in terms of performance, I'd rather use batch_mutate and > delete several rows and not issue a remove command on each and every row. > So far, all attempts doing so have failed. > The following command configurations have been tested: > > 1. Deletion, without a Supercolumn or SlicePredicate set. I get this > error: InvalidRequestException(why:A Deletion must have a > SuperColumn, a SlicePredicate or both.) > 2. Deletion, with a SlicePredicate set. The SlicePredicate is without > column names or SliceRange set. I get this error: > InvalidRequestException(why:A SlicePredicate must be given a list > of Columns, a SliceRange, or both) > 3. Deletion, with a SlicePredicate set. The SlicePredicate is set > with SliceRange. The SliceRange is set with empty start and finish > values. I get this error: InvalidRequestException(why:Deletion > does not yet support SliceRange predicates.) > > At this point I'm left with no other alternatives (since I want to > delete a whole row and not specific columns/supercolumns within a row). > Using the remove command in a loop has serious implications in terms of > performance. > Is there any solution for this problems? > Thanks, > Ron
