Joe McDonnell created IMPALA-15010:
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Summary: Patch gperftools to prevent integer wrap when
tcmalloc_max_total_thread_cache_bytes > INT_MAX
Key: IMPALA-15010
URL: https://issues.apache.org/jira/browse/IMPALA-15010
Project: IMPALA
Issue Type: Bug
Components: Infrastructure
Affects Versions: Impala 5.0.0
Reporter: Joe McDonnell
The size and max_size counters for a thread cache are stored as a 32-bit signed
integers inside gperftools. With the default
tcmalloc_max_total_thread_cache_bytes, this doesn't matter. As
tcmalloc_max_total_thread_cache_bytes goes above INT_MAX, it becomes
hypothetically possible for the size or max size to wrap and go negative. This
should be hard to hit, but it would be better to patch gperftools to prevent
it. In google tcmalloc, they use size_t for the size and max_size counters in
the thread cache.
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