Istvan Toth created MAPREDUCE-7502:
--------------------------------------

             Summary: TestPipeApplication silently hangs
                 Key: MAPREDUCE-7502
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-7502
             Project: Hadoop Map/Reduce
          Issue Type: Bug
            Reporter: Istvan Toth


TestPipeApplication silently hangs both in the CI runs and on my machine in the 
dev docker.

This is actually two problems:
- The test hangs
- The hang does not cause the tests to fail
{noformat}
[INFO] Running org.apache.hadoop.mapred.TestTaskPerformanceSplits
[INFO] Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.052 s 
- in org.apache.hadoop.mapred.TestTaskPerformanceSplits
[INFO] Running org.apache.hadoop.mapred.pipes.TestPipeApplication
[INFO] Running org.apache.hadoop.mapred.pipes.TestPipesNonJavaInputFormat
[INFO] Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 1.563 s 
- in org.apache.hadoop.mapred.pipes.TestPipesNonJavaInputFormat
...
[INFO] Results:
[INFO] 
[WARNING] Tests run: 574, Failures: 0, Errors: 0, Skipped: 1
[INFO] 
[ERROR] There was a timeout or other error in the fork
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  02:04 h
[INFO] Finished at: 2025-03-07T16:27:28Z{noformat}
 



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