Jason Fehr has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/22249 )

Change subject: IMPALA-13201: System Table Queries Execute When Admission 
Queues are Full
......................................................................


Patch Set 25:

(4 comments)

http://gerrit.cloudera.org:8080/#/c/22249/24/fe/src/main/java/org/apache/impala/service/Frontend.java
File fe/src/main/java/org/apache/impala/service/Frontend.java:

http://gerrit.cloudera.org:8080/#/c/22249/24/fe/src/main/java/org/apache/impala/service/Frontend.java@2201
PS24, Line 2201: coordOnlyRequestPool =
> nit: use camel case. There have been mixed snake vs camel case style in Fro
I prefer camel case since it's Java.  I wasn't sure which is correct since I 
see both (such as enabled_replan in line 2196).  I'll switch to camel case 
though.


http://gerrit.cloudera.org:8080/#/c/22249/24/java/yarn-extras/src/main/java/org/apache/impala/yarn/server/resourcemanager/scheduler/fair/AllocationFileLoaderService.java
File 
java/yarn-extras/src/main/java/org/apache/impala/yarn/server/resourcemanager/scheduler/fair/AllocationFileLoaderService.java:

http://gerrit.cloudera.org:8080/#/c/22249/24/java/yarn-extras/src/main/java/org/apache/impala/yarn/server/resourcemanager/scheduler/fair/AllocationFileLoaderService.java@83
PS24, Line 83:
             :   // Path to XML file containing allocations.
             :   private File allocFile;
             :
             :   private Listener reloadListener;
             :
> nit: cleanup the trailing white spaces.
Done


http://gerrit.cloudera.org:8080/#/c/22249/24/tests/custom_cluster/test_admission_controller.py
File tests/custom_cluster/test_admission_controller.py:

http://gerrit.cloudera.org:8080/#/c/22249/24/tests/custom_cluster/test_admission_controller.py@1824
PS24, Line 1824: rch(r'\n\s+Executor group 1:\n\s+Verdict: (.*?)\n', profile)
               :     assert fe_verdict, "No fr
> I think it is better to make this verbose.
Good idea.  I modified the code to capture the entire verdict and then do a 
string compare against the expected verdict.  That way, test failures will 
output the exact different that caused the failure.


http://gerrit.cloudera.org:8080/#/c/22249/24/tests/custom_cluster/test_admission_controller.py@1996
PS24, Line 1996: cluster_size=1,
> Is this starting a new Coordinator or Executor? Same question for L2007.
Both places are adding executors.  The @CustomClusterTestSuite annotation 
starts a cluster consisting of a single coordinator (in the "coordinator" 
executor group) and no executors.  The call to '__run_assert_systables_query' 
on line 1988 ensures that queries with an only coordinators request pool can 
still run even if there are no executors.

The subsequent calls to '__run_assert_systables_query' ensure queries with only 
coordinators request pools run just on the coordinators.

I updated the comments to better explain what is being added.



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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I5e0e64db92bdbf80f8b5bd85d001ffe4c8c9ffda
Gerrit-Change-Number: 22249
Gerrit-PatchSet: 25
Gerrit-Owner: Jason Fehr <[email protected]>
Gerrit-Reviewer: Abhishek Rawat <[email protected]>
Gerrit-Reviewer: Andrew Sherman <[email protected]>
Gerrit-Reviewer: Impala Public Jenkins <[email protected]>
Gerrit-Reviewer: Jason Fehr <[email protected]>
Gerrit-Reviewer: Joe McDonnell <[email protected]>
Gerrit-Reviewer: Michael Smith <[email protected]>
Gerrit-Reviewer: Riza Suminto <[email protected]>
Gerrit-Comment-Date: Wed, 12 Feb 2025 23:22:29 +0000
Gerrit-HasComments: Yes

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