Operation Time Out Error in cqlsh console of cassandra

Question

I have a three nodes Cassandra Cluster and I have created one table which has more than 2,000,000 rows.

When I execute this (select count(*) from userdetails

Answer 1

having the same problem as you above if i do a count for a day, but as a work around, I split the count into two requests (12hours + 12hours), such as below.

cqlsh:jw_schema1> select count(*) from flight_statistics where insert_time >= '2015-08-20 00:00:00' and insert_time <= '2015-08-20 11:59:59' ALLOW FILTERING;

 count
-------
 42528

(1 rows)
cqlsh:jw_schema1> select count(*) from flight_statistics where insert_time >= '2015-08-20 12:00:00' and insert_time <= '2015-08-20 23:59:59' ALLOW FILTERING;

 count
-------
 86580

(1 rows)
cqlsh:jw_schema1>