[CI] IndexDiskUsageAnalyzerTests testTriangle failing

[pugnascotia]

Build scan:
https://gradle-enterprise.elastic.co/s/dazhr7pkqde5e/tests/:server:test/org.elasticsearch.action.admin.indices.diskusage.IndexDiskUsageAnalyzerTests/testTriangle

Reproduction line:
./gradlew ':server:test' --tests "org.elasticsearch.action.admin.indices.diskusage.IndexDiskUsageAnalyzerTests.testTriangle" -Dtests.seed=606B638E7A8FB3C4 -Dtests.locale=it-IT -Dtests.timezone=America/Costa_Rica -Druntime.java=17

Applicable branches:
8.2

Reproduces locally?:
Yes

Failure history:
https://gradle-enterprise.elastic.co/scans/tests?tests.container=org.elasticsearch.action.admin.indices.diskusage.IndexDiskUsageAnalyzerTests&tests.test=testTriangle

Failure excerpt:

java.lang.AssertionError: field=total type=points actual=25370 expected=27814

  at __randomizedtesting.SeedInfo.seed([606B638E7A8FB3C4:5D62E9049182792]:0)
  at org.elasticsearch.action.admin.indices.diskusage.IndexDiskUsageAnalyzerTests.assertFieldStats(IndexDiskUsageAnalyzerTests.java:670)
  at org.elasticsearch.action.admin.indices.diskusage.IndexDiskUsageAnalyzerTests.testTriangle(IndexDiskUsageAnalyzerTests.java:238)
  at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(NativeMethodAccessorImpl.java:-2)
  at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
  at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  at java.lang.reflect.Method.invoke(Method.java:568)
  at com.carrotsearch.randomizedtesting.RandomizedRunner.invoke(RandomizedRunner.java:1758)
  at com.carrotsearch.randomizedtesting.RandomizedRunner$8.evaluate(RandomizedRunner.java:946)
  at com.carrotsearch.randomizedtesting.RandomizedRunner$9.evaluate(RandomizedRunner.java:982)
  at com.carrotsearch.randomizedtesting.RandomizedRunner$10.evaluate(RandomizedRunner.java:996)
  at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
  at org.apache.lucene.tests.util.TestRuleSetupTeardownChained$1.evaluate(TestRuleSetupTeardownChained.java:44)
  at org.apache.lucene.tests.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:43)
  at org.apache.lucene.tests.util.TestRuleThreadAndTestName$1.evaluate(TestRuleThreadAndTestName.java:45)
  at org.apache.lucene.tests.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:60)
  at org.apache.lucene.tests.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:44)
  at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
  at com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:375)
  at com.carrotsearch.randomizedtesting.ThreadLeakControl.forkTimeoutingTask(ThreadLeakControl.java:824)
  at com.carrotsearch.randomizedtesting.ThreadLeakControl$3.evaluate(ThreadLeakControl.java:475)
  at com.carrotsearch.randomizedtesting.RandomizedRunner.runSingleTest(RandomizedRunner.java:955)
  at com.carrotsearch.randomizedtesting.RandomizedRunner$5.evaluate(RandomizedRunner.java:840)
  at com.carrotsearch.randomizedtesting.RandomizedRunner$6.evaluate(RandomizedRunner.java:891)
  at com.carrotsearch.randomizedtesting.RandomizedRunner$7.evaluate(RandomizedRunner.java:902)
  at org.apache.lucene.tests.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:43)
  at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
  at org.apache.lucene.tests.util.TestRuleStoreClassName$1.evaluate(TestRuleStoreClassName.java:38)
  at com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
  at com.carrotsearch.randomizedtesting.rules.NoShadowingOrOverridesOnMethodsRule$1.evaluate(NoShadowingOrOverridesOnMethodsRule.java:40)
  at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
  at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
  at org.apache.lucene.tests.util.TestRuleAssertionsRequired$1.evaluate(TestRuleAssertionsRequired.java:53)
  at org.apache.lucene.tests.util.AbstractBeforeAfterRule$1.evaluate(AbstractBeforeAfterRule.java:43)
  at org.apache.lucene.tests.util.TestRuleMarkFailure$1.evaluate(TestRuleMarkFailure.java:44)
  at org.apache.lucene.tests.util.TestRuleIgnoreAfterMaxFailures$1.evaluate(TestRuleIgnoreAfterMaxFailures.java:60)
  at org.apache.lucene.tests.util.TestRuleIgnoreTestSuites$1.evaluate(TestRuleIgnoreTestSuites.java:47)
  at com.carrotsearch.randomizedtesting.rules.StatementAdapter.evaluate(StatementAdapter.java:36)
  at com.carrotsearch.randomizedtesting.ThreadLeakControl$StatementRunner.run(ThreadLeakControl.java:375)
  at com.carrotsearch.randomizedtesting.ThreadLeakControl.lambda$forkTimeoutingTask$0(ThreadLeakControl.java:831)
  at java.lang.Thread.run(Thread.java:833)

[elasticmachine]

Pinging @elastic/es-analytics-geo (Team:Analytics)

[iverase]

@dnhatn I think you introduce this change. I am wondering why we are visiting the BKD tree twice, why are not just doing this:

 void analyzePoints(SegmentReader reader, IndexDiskUsageStats stats) throws IOException {
        PointsReader pointsReader = reader.getPointsReader();
        if (pointsReader == null) {
            return;
        }
        pointsReader = pointsReader.getMergeInstance();
        for (FieldInfo field : reader.getFieldInfos()) {
            cancellationChecker.checkForCancellation();
            directory.resetBytesRead();
            if (field.getPointDimensionCount() > 0) {
                final PointValues values = pointsReader.getValues(field.name);
                values.intersect(new PointsVisitor());
                stats.addPoints(field.name, directory.getBytesRead());
            }
        }
    }

    private class PointsVisitor implements PointValues.IntersectVisitor {

        PointsVisitor() {
        }

        @Override
        public void visit(int docID) throws IOException {
            cancellationChecker.logEvent();
        }

        @Override
        public void visit(int docID, byte[] packedValue) throws IOException {
            cancellationChecker.logEvent();
        }

        @Override
        public PointValues.Relation compare(byte[] minPackedValue, byte[] maxPackedValue) {
            return PointValues.Relation.CELL_CROSSES_QUERY;
        }
    }

[elasticmachine]

Pinging @elastic/es-search (Team:Search)

[iverase]

Reassign it to search as this capability was originally developed in that area.

[dnhatn]

@iverase Thanks for the suggestion. I've adapted your suggestion in #85499, and it fixes the related test failures. Would you mind taking a look?