HADOOP-18779. Improve hadoop-function.sh#status script.

[slfan1989]

Description of PR

JIRA: HADOOP-18779. Improve hadoop-function.sh#status script.

When We use yarn --daemon status router/nodemanager, I found that no information can be displayed. I checked the script and modified the script of hadoop-functions.sh#status to increase the output information.

yarn --daemon status router

• If the service is started, the following information will be printed.

router is running as process 47626.

• If the service is stop, the following information will be printed.

router is stopped.

How was this patch tested?

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?
• If applicable, have you updated the LICENSE, LICENSE-binary, NOTICE-binary files?

[hadoop-yetus]

💔 -1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	1m 0s		Docker mode activated.
			_ Prechecks _
+1 💚	dupname	0m 0s		No case conflicting files found.
+0 🆗	codespell	0m 0s		codespell was not available.
+0 🆗	detsecrets	0m 0s		detect-secrets was not available.
+0 🆗	shelldocs	0m 0s		Shelldocs was not available.
+1 💚	@author	0m 0s		The patch does not contain any @author tags.
-1 ❌	test4tests	0m 0s		The patch doesn't appear to include any new or modified tests. Please justify why no new tests are needed for this patch. Also please list what manual steps were performed to verify this patch.
			_ trunk Compile Tests _
-1 ❌	mvninstall	12m 14s	/branch-mvninstall-root.txt	root in trunk failed.
+1 💚	mvnsite	1m 33s		trunk passed
+1 💚	shadedclient	30m 53s		branch has no errors when building and testing our client artifacts.
			_ Patch Compile Tests _
+1 💚	mvninstall	1m 30s		the patch passed
+1 💚	blanks	0m 0s		The patch has no blanks issues.
+1 💚	mvnsite	1m 56s		the patch passed
-1 ❌	shellcheck	0m 5s	/results-shellcheck.txt	The patch generated 1 new + 26 unchanged - 0 fixed = 27 total (was 26)
+1 💚	shadedclient	24m 14s		patch has no errors when building and testing our client artifacts.
			_ Other Tests _
+1 💚	unit	1m 35s		hadoop-common in the patch passed.
+1 💚	asflicense	0m 39s		The patch does not generate ASF License warnings.
		79m 58s

Subsystem	Report/Notes
Docker	ClientAPI=1.43 ServerAPI=1.43 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-5762/1/artifact/out/Dockerfile
GITHUB PR	#5762
Optional Tests	dupname asflicense mvnsite unit codespell detsecrets shellcheck shelldocs
uname	Linux 3402a667840c 4.15.0-212-generic #223-Ubuntu SMP Tue May 23 13:09:22 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev-support/bin/hadoop.sh
git revision	trunk / d9d95b4
Test Results	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-5762/1/testReport/
Max. process+thread count	536 (vs. ulimit of 5500)
modules	C: hadoop-common-project/hadoop-common U: hadoop-common-project/hadoop-common
Console output	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-5762/1/console
versions	git=2.25.1 maven=3.6.3 shellcheck=0.7.0
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[goiri]

I wonder if not outputting anything was done by design.
I can see the case for a daemon not outputting anything.

[slfan1989]

I wonder if not outputting anything was done by design.
I can see the case for a daemon not outputting anything.

Thanks for your explanation! I will use this command again in the test environment.

[slfan1989]

@goiri I have carefully read the code related to the --daemon and conducted experiments in a testing environment.

The daemon of hdfs/yarn contains 3 operations, namely start|status|stop

• hdfs --daemon start namenode

When starting the namenode, we can use the command hdfs --daemon start namenode, which initiates the namenode without generating any output information. I believe this behavior is appropriate.

• hdfs --daemon status namenode

When utilizing the hdfs --daemon status namenode command, I still expect it to provide some information regarding the namenode's status. Nevertheless, I have noticed that executing this command does not yield any output.

I have added some output information for the status command.

• If the service is in a running state.

• If the service is in a stopped state.

This modification only affects the status command of the daemon and does not have any impact on the start or stop commands.

[hadoop-yetus]

💔 -1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	1m 7s		Docker mode activated.
			_ Prechecks _
+1 💚	dupname	0m 0s		No case conflicting files found.
+0 🆗	codespell	0m 0s		codespell was not available.
+0 🆗	detsecrets	0m 0s		detect-secrets was not available.
+0 🆗	shelldocs	0m 0s		Shelldocs was not available.
+1 💚	@author	0m 0s		The patch does not contain any @author tags.
-1 ❌	test4tests	0m 0s		The patch doesn't appear to include any new or modified tests. Please justify why no new tests are needed for this patch. Also please list what manual steps were performed to verify this patch.
			_ trunk Compile Tests _
+1 💚	mvninstall	52m 31s		trunk passed
+1 💚	mvnsite	1m 30s		trunk passed
+1 💚	shadedclient	37m 19s		branch has no errors when building and testing our client artifacts.
			_ Patch Compile Tests _
+1 💚	mvninstall	0m 59s		the patch passed
+1 💚	blanks	0m 0s		The patch has no blanks issues.
+1 💚	mvnsite	1m 18s		the patch passed
-1 ❌	shellcheck	0m 4s	/results-shellcheck.txt	The patch generated 1 new + 26 unchanged - 0 fixed = 27 total (was 26)
+1 💚	shadedclient	37m 37s		patch has no errors when building and testing our client artifacts.
			_ Other Tests _
+1 💚	unit	1m 35s		hadoop-common in the patch passed.
+1 💚	asflicense	0m 36s		The patch does not generate ASF License warnings.
		138m 57s

Subsystem	Report/Notes
Docker	ClientAPI=1.43 ServerAPI=1.43 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-5762/2/artifact/out/Dockerfile
GITHUB PR	#5762
Optional Tests	dupname asflicense mvnsite unit codespell detsecrets shellcheck shelldocs
uname	Linux 2bea028ff82b 4.15.0-212-generic #223-Ubuntu SMP Tue May 23 13:09:22 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev-support/bin/hadoop.sh
git revision	trunk / b1ce3d5
Test Results	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-5762/2/testReport/
Max. process+thread count	530 (vs. ulimit of 5500)
modules	C: hadoop-common-project/hadoop-common U: hadoop-common-project/hadoop-common
Console output	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-5762/2/console
versions	git=2.25.1 maven=3.6.3 shellcheck=0.7.0
Powered by	Apache Yetus 0.14.0 https://yetus.apache.org

This message was automatically generated.

[slfan1989]

@goiri Thank you very much for your help in reviewing the code!