Tim Armstrong created IMPALA-5895:
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Summary: Simplify and document memory management of RuntimeProfile
Counters
Key: IMPALA-5895
URL: https://issues.apache.org/jira/browse/IMPALA-5895
Project: IMPALA
Issue Type: Improvement
Components: Backend
Affects Versions: Impala 2.10.0
Reporter: Tim Armstrong
Assignee: Tim Armstrong
It's very unclear what requirements there are around object lifetimes for
RuntimeProfile objects and the Counter objects that live in ObjectPools. See
IMPALA-5878 for a case where it's very hard to reason about correctness of the
memory management.
We should document the requirements and also consider simplifying the ownership
model. E.g. having each RuntimeProfile own all of its counters via unique_ptrs.
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