(phoenix) branch master updated: PHOENIX-7839 MetaDataEndPointIT recategorize as NeedsOwnMiniClusterTest (#2456)

[palashc]

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palashc pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/phoenix.git


The following commit(s) were added to refs/heads/master by this push:
     new 4e71d19232 PHOENIX-7839 MetaDataEndPointIT recategorize as 
NeedsOwnMiniClusterTest (#2456)
4e71d19232 is described below

commit 4e71d192328fbb9dedaa8aa23bde21eb852a5ac1
Author: Andrew Purtell <apurt...@apache.org>
AuthorDate: Wed Jul 1 12:40:31 2026 -0700

    PHOENIX-7839 MetaDataEndPointIT recategorize as NeedsOwnMiniClusterTest 
(#2456)
---
 .../apache/phoenix/end2end/MetaDataEndPointIT.java  | 21 ++++++++++++++++++++-
 1 file changed, 20 insertions(+), 1 deletion(-)

diff --git 
a/phoenix-core/src/it/java/org/apache/phoenix/end2end/MetaDataEndPointIT.java 
b/phoenix-core/src/it/java/org/apache/phoenix/end2end/MetaDataEndPointIT.java
index ca48f96a7f..66fdc1540b 100644
--- 
a/phoenix-core/src/it/java/org/apache/phoenix/end2end/MetaDataEndPointIT.java
+++ 
b/phoenix-core/src/it/java/org/apache/phoenix/end2end/MetaDataEndPointIT.java
@@ -39,7 +39,26 @@ import org.apache.phoenix.util.SchemaUtil;
 import org.junit.Test;
 import org.junit.experimental.categories.Category;
 
-@Category(ParallelStatsDisabledTest.class)
+/**
+ * The metric tests in this class assert against the process-global
+ * {@link MetricsMetadataSourceFactory#getMetadataMetricsSource()} singleton, 
whose counters
+ * (CREATE_TABLE_COUNT, METADATA_CACHE_ESTIMATED_USED_SIZE, 
METADATA_CACHE_ADD_COUNT, ...) are
+ * incremented by every server-side metadata operation in the same JVM. 
Running this test class in
+ * the {@link ParallelStatsDisabledTest} group lets parallel tests in other 
classes in the same
+ * fork mutate those counters between this test's "capture baseline" and 
"verify after CREATE
+ * TABLE" calls, producing intermittent strict-equality assertion failures 
such as:
+ *
+ * <pre>
+ *   testMetadataMetricsOfCreateTable
+ *     expected:&lt;232498&gt; but was:&lt;240491&gt;
+ * </pre>
+ *
+ * Categorize as {@link NeedsOwnMiniClusterTest} so failsafe runs this class 
in its own forked JVM
+ * (reuseForks=false), guaranteeing exclusive ownership of the metric 
singleton for the duration
+ * of the suite. Tests within this class still run sequentially in that fork, 
which is sufficient
+ * because each individual test captures and verifies its own counter deltas 
in a single thread.
+ */
+@Category(NeedsOwnMiniClusterTest.class)
 public class MetaDataEndPointIT extends ParallelStatsDisabledIT {
   @Test
   public void testUpdateIndexState() throws Throwable {