I see starting with Astyanax V3, Thrift 0.9.1 (in your version, 1.56.48 it is Thrift 0.7.0) is used. Please consider upgrading to Thrift 0.9.2, because this fixes an important memory leak for Thrift-based Astyanax users. See: https://issues.apache.org/jira/browse/THRIFT-1457
I see starting with Astyanax V3, Thrift 0.9.1 (in your version, 1.56.48 it is Thrift 0.7.0) is used. Please consider upgrading to Thrift 0.9.2, because this fixes an important memory leak for Thrift-based Astyanax users. See: https://issues.apache.org/jira/browse/THRIFT-1457