I am doing get query in cassandra in a loop, sometimes getting error "All connections on all I/O threads are busy" in c++ client. Load is also low. Server version - apache-cassandra-3.11.2 Driver Version - c++ driver version 2.7 Related client driver configuration - cass_cluster_set_max_connections_per_host (cluster, 20 ) cass_cluster_set_core_connections_per_host(cluster,2) cass_cluster_set_num_threads_io(cluster,2)
All connections on all I/O threads are busy
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