Jose Luis López created HADOOP-19964:
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Summary: Restore TimedOutTestsListener thread dumps on test timeout
Key: HADOOP-19964
URL: https://issues.apache.org/jira/browse/HADOOP-19964
Project: Hadoop Common
Issue Type: Test
Reporter: Jose Luis López
Goal: a test that fails on @Timeout prints a full thread dump into its
surefire report. Today it prints nothing, and a timeout without thread state
is undiagnosable after the fact.
This is a regression. TimedOutTestsListener (HADOOP-8755, 2012) did exactly
this until the JUnit 5 migration (HADOOP-19415 Part4) left it implementing no
listener interface. The Surefire "listener" property that 8 poms still carry
registers nothing.
Fix:
* Reimplement it as a JUnit Platform TestExecutionListener, auto-registered
via META-INF/services in the hadoop-common test artifact.
* Remove the dead "listener" property from the 8 poms.
* -Dhadoop.test.timedout.dump=false turns it off;
-Dhadoop.test.timedout.dump.limit (default 5) caps dumps per JVM.
Covers timeouts that fail through JUnit. Does not cover Surefire's fork kill
(forkedProcessTimeoutInSeconds), which halts the JVM and bypasses listeners.
Complements HADOOP-19950, whose CI upload globs already capture the report
files these dumps land in.
The listener activates for every consumer of the hadoop-common test artifact,
including HBase, Ozone, Hive and Tez: needs a release note.
Test-scope only; no production code is touched.
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