hello-stephen opened a new pull request, #61543:
URL: https://github.com/apache/doris/pull/61543

   …ging indefinitely
   
   Problem:
   FE UT occasionally hangs when a test's forked JVM process gets stuck (e.g. a 
mocked FE background thread that never exits, or a deadlock during test 
initialization). When this happens, the entire build silently stalls until the 
CI global timeout is hit (3h+), causing all subsequent tests in the same 
Surefire batch to never run.
   Two concrete examples identified from CI logs:
   
   org.apache.doris.statistics.AnalysisTaskExecutorTest — mocked FE started but 
JVM never exited, hung for ~1h39m
   org.apache.doris.planner.FederationBackendPolicyTest — zero output after 
"Running", hung silently
   
   Solution:
   Add -Dsurefire.forkedProcessTimeoutInSeconds and 
-Dsurefire.forkedProcessExitTimeoutInSeconds to all mvn test invocations in 
run-fe-ut.sh.
   When a forked JVM exceeds the timeout with no progress:
   
   Surefire sends SIGQUIT → the JVM prints a full thread dump to stdout 
(visible in CI logs), making the root cause immediately diagnosable
   Surefire then kills the process and marks the test as ERROR
   The rest of the test suite continues normally
   
   The timeout values are configurable via env vars FE_UT_FORK_TIMEOUT 
(default: 600s) and FE_UT_FORK_EXIT_TIMEOUT (default: 60s), so CI pipelines can 
override them without touching the script.
   Impact:
   
   No change to normal test execution
   Hung tests now fail fast with a thread dump instead of silently consuming 
the entire CI budget
   Overall FE UT wall-clock time reduced from 3h+ (timeout-killed) back to the 
expected ~1.5h
   


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