That's a bug... Somehow you got it to try to write out a row containing zero columns, which isn't supposed to be allowed.
After rechecking of my application, I tried to play with storage-conf.xml and cassandra.in.sh. Interesting, that error goes away when MemtableSizeInMB returns to default (was 256) and max heap size (-Xmx1G) is increased to 3G. Cassandra cluster is running on 7 boxes with 4G RAM on each.
-- Teodor Sigaev E-mail: [email protected] WWW: http://www.sigaev.ru/
