pan3793 opened a new pull request, #7932:
URL: https://github.com/apache/hadoop/pull/7932
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### Description of PR
Fix the issue that `kill` command is not found
```
[INFO] -------------------------------------------------------
[INFO] T E S T S
[INFO] -------------------------------------------------------
[INFO] Running org.apache.hadoop.yarn.util.TestProcfsBasedProcessTree
[ERROR] Tests run: 5, Failures: 0, Errors: 1, Skipped: 0, Time elapsed:
7.950 s <<< FAILURE! -- in
org.apache.hadoop.yarn.util.TestProcfsBasedProcessTree
[ERROR]
org.apache.hadoop.yarn.util.TestProcfsBasedProcessTree.testProcessTree -- Time
elapsed: 7.534 s <<< ERROR!
java.io.IOException: Cannot run program "kill": error=2, No such file or
directory
at java.base/java.lang.ProcessBuilder.start(ProcessBuilder.java:1128)
at java.base/java.lang.ProcessBuilder.start(ProcessBuilder.java:1071)
at org.apache.hadoop.util.Shell.runCommand(Shell.java:1000)
at org.apache.hadoop.util.Shell.run(Shell.java:959)
at
org.apache.hadoop.util.Shell$ShellCommandExecutor.execute(Shell.java:1284)
at
org.apache.hadoop.yarn.util.TestProcfsBasedProcessTree.sendSignal(TestProcfsBasedProcessTree.java:857)
at
org.apache.hadoop.yarn.util.TestProcfsBasedProcessTree.destroyProcessTree(TestProcfsBasedProcessTree.java:257)
at
org.apache.hadoop.yarn.util.TestProcfsBasedProcessTree.testProcessTree(TestProcfsBasedProcessTree.java:196)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at java.base/java.util.ArrayList.forEach(ArrayList.java:1541)
at java.base/java.util.ArrayList.forEach(ArrayList.java:1541)
Caused by: java.io.IOException: error=2, No such file or directory
at java.base/java.lang.ProcessImpl.forkAndExec(Native Method)
at java.base/java.lang.ProcessImpl.<init>(ProcessImpl.java:340)
at java.base/java.lang.ProcessImpl.start(ProcessImpl.java:271)
at java.base/java.lang.ProcessBuilder.start(ProcessBuilder.java:1107)
... 10 more
```
### How was this patch tested?
```
./start-build-env.sh debian_11
```
```
$ mvn clean install -DskipShade -DskipTests -Pnative
$ mvn -pl :hadoop-yarn-common test
-Dtest=hadoop.yarn.util.TestProcfsBasedProcessTree
...
[INFO] T E S T S
[INFO] -------------------------------------------------------
[INFO] Running org.apache.hadoop.yarn.util.TestProcfsBasedProcessTree
[INFO] Tests run: 5, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 8.064
s -- in org.apache.hadoop.yarn.util.TestProcfsBasedProcessTree
[INFO]
[INFO] Results:
[INFO]
[INFO] Tests run: 5, Failures: 0, Errors: 0, Skipped: 0
[INFO]
[INFO]
------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO]
------------------------------------------------------------------------
[INFO] Total time: 24.306 s
[INFO] Finished at: 2025-09-05T10:14:12Z
[INFO]
------------------------------------------------------------------------
```
### For code changes:
- [ ] Does the title or this PR starts with the corresponding JIRA issue id
(e.g. 'HADOOP-17799. Your PR title ...')?
- [ ] Object storage: have the integration tests been executed and the
endpoint declared according to the connector-specific documentation?
- [ ] If adding new dependencies to the code, are these dependencies
licensed in a way that is compatible for inclusion under [ASF
2.0](http://www.apache.org/legal/resolved.html#category-a)?
- [ ] If applicable, have you updated the `LICENSE`, `LICENSE-binary`,
`NOTICE-binary` files?
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