Memory leak in fastbinary
-------------------------
Key: THRIFT-391
URL: https://issues.apache.org/jira/browse/THRIFT-391
Project: Thrift
Issue Type: Bug
Components: Compiler (Python)
Environment: Linux 2.6.21 (Debian)
Reporter: Garrett Smith
When a struct has a map member, fastbinary.binary_encode leaks memory.
Use testmem.tar.gz app to recreate the problem.
{quote}
# tar xzf testmem.tar.gz
# cd testmem
# ./testmem fast
{quote}
As this is running, use top or pidstat to view the memory consumed by the
process. Hit CTRL-C to stop. On my system it steadily increases.
To compare the results using the 'default' encoding technique (using pure
Python TBinaryProtocol), run testmem as follows:
{quote}
# ./testmem default
{quote}
Note (again, using top, pidstat, etc.) that the memory used is constant.
It appears that the 'map' member triggers this. E.g. string, int members do not
cause the leak.
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