Same it happens when doing cf slices by the driver Pandra itself:
Stacktrace:
7 0.3672 1494792 PandraSuperColumnFamily->load( ) ../Tester.class.php:
1172
8 0.3673 1497524 PandraCore::getCFSlice( ) ../
SuperColumnFamily.class.php:174
9 0.3674 1498060 CassandraClient->get_slice( ) ../Core.class.php:664
10 0.3674 1498128 CassandraClient->send_get_slice( ) ../Cassandra.php:
168
11 0.3675 1501424 cassandra_Cassandra_get_slice_args->write( ) ../
Cassandra.php:188
12 0.3677 1501860 cassandra_SlicePredicate->write( ) ../Cassandra.php:
1848
13 0.3677 1501860 cassandra_SliceRange->write( ) ../
cassandra_types.php:1188