Hi, it actually seems to be worse than what I thought; I get an exception in cassandra logs every time I try to create a new table.
Cql query: CREATE TABLE shard12 ("feed_id" ascii, "activity_id" timeuuid, "activities" blob, "created_at" timestamp, "group" ascii, "updated_at" timestamp, "seen_at" timestamp, "read_at" timestamp, PRIMARY KEY (("feed_id"), "activity_id")) WITH read_repair_chance = 0.1 AND clustering order by ("activity_id" desc) AND compaction = {'sstable_size_in_mb': 64, 'class': 'LeveledCompactionStrategy'}; This is the error: java.lang.RuntimeException: java.util.concurrent.ExecutionException: java.lang.RuntimeException: org.apache.cassandra.exceptions.ConfigurationException: comparators do not match or are not compatible. Tommaso 2014-10-12 13:05 GMT+02:00 tommaso barbugli <tbarbu...@gmail.com>: > Hi, > I am seeing errors every time I make a schema migration of this kind on > cassandra 2.0.10 > > ALTER TABLE notifications add "unread_ids" set<timeuuid> static > > <ErrorMessage code=0000 [Server error] > message="java.lang.RuntimeException: > java.util.concurrent.ExecutionException: java.lang.RuntimeException: > org.apache.cassandra.exceptions.ConfigurationException: comparators do not > match or are not compatible."> > > Weird enough DESCRIBE COLUMNFAMILY notifications; shows that the column > unread_ids is created after the error. > > Any idea if this is an actual bug or if I am doing something wrong? > > Tommaso >