consistency questions about query on Cassandra using cql -


i did exact same query on cassandra, result different, i'm wondering why. detail following:

    cqlsh:keyspace > select info_map seq_id = '123456' limit 2;     (0 rows)     .....     (after 1 minute)     .....     cqlsh:keyspace > select info_map seq_id = '123456' limit 2;     {............data detail........}     (1 rows)

i can assure data not instant (the data inserted database 1 month ago), , number of hit recode @ 1 (though write limit 2 in cql). , cassandra has 2 datacenters.


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