Chandler May created THRIFT-3765:
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Summary: memory leak in python compact protocol extension
Key: THRIFT-3765
URL: https://issues.apache.org/jira/browse/THRIFT-3765
Project: Thrift
Issue Type: Bug
Components: Python - Library
Affects Versions: 0.10.0
Reporter: Chandler May
There is a memory leak in the compact protocol encoder extension module
introduced in THRIFT-3612. This leak is significant enough to prevent us from
using the extension in practice.
Example output from valgrind:
{code}
==18238== 4,177,472 bytes in 96,403 blocks are definitely lost in loss record
3,534 of 3,534
==18238== at 0x4C29BFD: malloc (in
/usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
==18238== by 0x4EBD49C: PyObject_Malloc (in /usr/lib64/libpython2.7.so.1.0)
==18238== by 0x4EC6381: PyString_FromStringAndSize (in
/usr/lib64/libpython2.7.so.1.0)
==18238== by 0x4EE9669: PyUnicodeUCS4_EncodeUTF8 (in
/usr/lib64/libpython2.7.so.1.0)
==18238== by 0x143D0CC7:
apache::thrift::py::ProtocolBase<apache::thrift::py::CompactProtocol>::encodeValue(_object*,
apache::thrift::py::TType, _object*) (protocol.tcc:422)
==18238== by 0x143D085B: writeField (compact.h:100)
==18238== by 0x143D085B:
apache::thrift::py::ProtocolBase<apache::thrift::py::CompactProtocol>::encodeValue(_object*,
apache::thrift::py::TType, _object*) (protocol.tcc:531)
==18238== by 0x143D0F71:
apache::thrift::py::ProtocolBase<apache::thrift::py::CompactProtocol>::encodeValue(_object*,
apache::thrift::py::TType, _object*) (protocol.tcc:459)
==18238== by 0x143D085B: writeField (compact.h:100)
==18238== by 0x143D085B:
apache::thrift::py::ProtocolBase<apache::thrift::py::CompactProtocol>::encodeValue(_object*,
apache::thrift::py::TType, _object*) (protocol.tcc:531)
==18238== by 0x143D085B: writeField (compact.h:100)
==18238== by 0x143D085B:
apache::thrift::py::ProtocolBase<apache::thrift::py::CompactProtocol>::encodeValue(_object*,
apache::thrift::py::TType, _object*) (protocol.tcc:531)
==18238== by 0x143D085B: writeField (compact.h:100)
==18238== by 0x143D085B:
apache::thrift::py::ProtocolBase<apache::thrift::py::CompactProtocol>::encodeValue(_object*,
apache::thrift::py::TType, _object*) (protocol.tcc:531)
==18238== by 0x143D0F71:
apache::thrift::py::ProtocolBase<apache::thrift::py::CompactProtocol>::encodeValue(_object*,
apache::thrift::py::TType, _object*) (protocol.tcc:459)
==18238== by 0x143D085B: writeField (compact.h:100)
==18238== by 0x143D085B:
apache::thrift::py::ProtocolBase<apache::thrift::py::CompactProtocol>::encodeValue(_object*,
apache::thrift::py::TType, _object*) (protocol.tcc:531)
{code}
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