xinyiZzz commented on a change in pull request #8322:
URL: https://github.com/apache/incubator-doris/pull/8322#discussion_r824327970
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File path: be/src/runtime/plan_fragment_executor.h
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@@ -147,7 +147,6 @@ class PlanFragmentExecutor {
ExecEnv* _exec_env; // not owned
ExecNode* _plan; // lives in _runtime_state->obj_pool()
TUniqueId _query_id;
- std::shared_ptr<MemTracker> _mem_tracker;
Review comment:
Same as explained above for _scanner_mem_tracker.
Count the memory consumption of Rowset Reader and Tablet Reader in
OlapScanner
_scanner_mem_tracker replaces the previous PlanFragmentExecutor::
_mem_tracker, both of which are also used to count the memory of OlapScanner.
The difference is that,
The parent of rPlanFragmentExecutor:: _mem_tracker is process_mem_tracker,
which is used in segment_reader of segmentV1 to determine whether OlapScanner
exceeds the mem limit.
The parent of _scanner_mem_tracker is query_mem_tracker, which removes the
logic of OlapScanner mem limit exceed in segment_reader.
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