query statement return empty

[鄢来琼]

Hi ALL

The result of “select * from t_test where id = 1” statement is not consistency,
Could you tell me why?

test case,
I = 0;
While I < 5:
    result = cassandra_session.execute(“select ratio from t_test where id = 1”)
print result

testing result:
[Row(ratio=Decimal('0.000'))]
[]
[Row(ratio=Decimal('0.000'))]
[Row(ratio=Decimal('0.000'))]
[Row(ratio=Decimal('0.000'))]

Cassandra cluster:
My Cassandra version is 2.12,
the Cassandra cluster has 9 nodes.
The python driver version is 2.6

I have tested both the AsyncoreConnection and LibevConnection, the results are 
in consistency.

Thanks a lot.

Peter