Impala Public Jenkins has submitted this change and it was merged. ( 
http://gerrit.cloudera.org:8080/23873 )

Change subject: IMPALA-14682: Use centralized async cleanup for admission state 
cleanup
......................................................................

IMPALA-14682: Use centralized async cleanup for admission state cleanup

In IMPALA-14605, we added a mechanism to clean up the admission state
asynchronously. This patch refactors all admission state deletions
to use this centralized async method, making it easier to reason
about when admission state is removed and to detect cases where a
query’s admission state is not properly cleared.

Additionally, this refactoring is a necessary step for future
improvements, such as implementing time-based deletion.

Also updated test_admission_state_map_mem_leak to verify the
admission state number using the new global metric
admission-control-service.num-queries as it is more stable than
checking the log.

Tests:
Passed core tests.
Passed exhaustive custom_cluster/test_admission_controller.py test.

Change-Id: I04f46f2e42ec5e50f4dcccb6b73a34a376615ab0
Reviewed-on: http://gerrit.cloudera.org:8080/23873
Reviewed-by: Impala Public Jenkins <[email protected]>
Tested-by: Impala Public Jenkins <[email protected]>
---
M be/src/scheduling/admission-control-service.cc
M be/src/scheduling/admission-control-service.h
M be/src/scheduling/admission-controller.cc
M be/src/scheduling/admission-controller.h
M be/src/scheduling/admissiond-env.cc
M tests/custom_cluster/test_admission_controller.py
6 files changed, 24 insertions(+), 25 deletions(-)

Approvals:
  Impala Public Jenkins: Looks good to me, approved; Verified

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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: merged
Gerrit-Change-Id: I04f46f2e42ec5e50f4dcccb6b73a34a376615ab0
Gerrit-Change-Number: 23873
Gerrit-PatchSet: 5
Gerrit-Owner: Yida Wu <[email protected]>
Gerrit-Reviewer: Abhishek Rawat <[email protected]>
Gerrit-Reviewer: Impala Public Jenkins <[email protected]>
Gerrit-Reviewer: Yida Wu <[email protected]>

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