HDFS-16277 improve decision in AvailableSpaceBlockPlacementPolicy #3559

GuoPhilipse · 2021-10-16T14:59:43Z

Hi
In product environment,we may meet two or more datanode usage reaches nealy 100%,for exampe 99.99%,98%,97%.
if we configure AvailableSpaceBlockPlacementPolicy , we also have the chance to choose the 99.99%(assume it is the highest usage),for we treat the two choosen datanode as the same usage if their storage usage are different within 5%.
but this is not what we want, so i suggest we can improve the decision.

sync

ayushtkn

Jira title is wrong: HADOOP-16277 is something different:
https://issues.apache.org/jira/browse/HADOOP-16277
Please correct the title.

Regarding the code changes:
*Should make this configurable, With default value as 5,
*Need to do the same change in AvailableSpaceRackFaultTolerantBlockPlacementPolicy
*Add a test

hadoop-yetus · 2021-10-16T20:35:02Z

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GuoPhilipse · 2021-10-16T23:40:27Z

@ayushtkn Thanks for you kindly review, will improve it later

yakirgb · 2021-10-17T05:42:09Z

Just an idea, i think also AvailableSpaceRackFaultTolerantBlockPlacementPolicy with same issue and we can apply same fix:
AvailableSpaceRackFaultTolerantBlockPlacementPolicy.java


  /**
   * Compare the two data nodes.
   */
  protected int compareDataNode(final DatanodeDescriptor a,
      final DatanodeDescriptor b) {
    if (a.equals(b)
        || Math.abs(a.getDfsUsedPercent() - b.getDfsUsedPercent()) < 5) {
      return 0;
    }
    return a.getDfsUsedPercent() < b.getDfsUsedPercent() ? -1 : 1;
  }
}

hadoop-yetus · 2021-10-17T17:05:54Z

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ayushtkn

Dropped some comments,
Regarding the test, You need to add a separate test which can validate your changes. As of now I don't see any

...n/java/org/apache/hadoop/hdfs/server/blockmanagement/AvailableSpaceBlockPlacementPolicy.java

hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSConfigKeys.java

hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/HdfsBlockPlacementPolicies.md

...n/java/org/apache/hadoop/hdfs/server/blockmanagement/AvailableSpaceBlockPlacementPolicy.java

hadoop-yetus · 2021-10-20T02:06:08Z

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hadoop-yetus · 2021-10-20T07:55:37Z

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hadoop-yetus · 2021-10-20T14:21:36Z

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Reason	Tests
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versions	git=2.25.1 maven=3.6.3 spotbugs=4.2.2
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hadoop-yetus · 2021-10-20T20:51:07Z

🎊 +1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	0m 41s		Docker mode activated.
			_ Prechecks _
+1 💚	dupname	0m 1s		No case conflicting files found.
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+1 💚	test4tests	0m 0s		The patch appears to include 2 new or modified test files.
			_ trunk Compile Tests _
+1 💚	mvninstall	31m 41s		trunk passed
+1 💚	compile	1m 23s		trunk passed with JDK Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04
+1 💚	compile	1m 16s		trunk passed with JDK Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10
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+1 💚	spotbugs	3m 8s		trunk passed
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			_ Patch Compile Tests _
+1 💚	mvninstall	1m 11s		the patch passed
+1 💚	compile	1m 13s		the patch passed with JDK Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04
+1 💚	javac	1m 13s		the patch passed
+1 💚	compile	1m 6s		the patch passed with JDK Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10
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-0 ⚠️	checkstyle	0m 53s	/results-checkstyle-hadoop-hdfs-project_hadoop-hdfs.txt	hadoop-hdfs-project/hadoop-hdfs: The patch generated 21 new + 230 unchanged - 1 fixed = 251 total (was 231)
+1 💚	mvnsite	1m 14s		the patch passed
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			_ Other Tests _
+1 💚	unit	224m 44s		hadoop-hdfs in the patch passed.
+1 💚	asflicense	0m 46s		The patch does not generate ASF License warnings.
		320m 9s

Subsystem	Report/Notes
Docker	ClientAPI=1.41 ServerAPI=1.41 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3559/7/artifact/out/Dockerfile
GITHUB PR	#3559
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versions	git=2.25.1 maven=3.6.3 spotbugs=4.2.2
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hadoop-yetus · 2021-10-20T22:36:21Z

🎊 +1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	0m 53s		Docker mode activated.
			_ Prechecks _
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			_ trunk Compile Tests _
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			_ Patch Compile Tests _
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			_ Other Tests _
+1 💚	unit	321m 19s		hadoop-hdfs in the patch passed.
+1 💚	asflicense	0m 38s		The patch does not generate ASF License warnings.
		426m 12s

Subsystem	Report/Notes
Docker	ClientAPI=1.41 ServerAPI=1.41 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3559/6/artifact/out/Dockerfile
GITHUB PR	#3559
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versions	git=2.25.1 maven=3.6.3 spotbugs=4.2.2
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GuoPhilipse · 2021-10-21T02:28:44Z

@ayushtkn Thanks for your detail comments, they have been fixed and test cases passed as well. any new ideas ?

ayushtkn

Looks almost good to me. Dropped some minor comments. Should be good to go once addressed.

...va/org/apache/hadoop/hdfs/server/blockmanagement/TestAvailableSpaceRackFaultTolerantBPP.java

...va/org/apache/hadoop/hdfs/server/blockmanagement/TestAvailableSpaceBlockPlacementPolicy.java

...n/java/org/apache/hadoop/hdfs/server/blockmanagement/AvailableSpaceBlockPlacementPolicy.java

.../hadoop/hdfs/server/blockmanagement/AvailableSpaceRackFaultTolerantBlockPlacementPolicy.java

hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml

...va/org/apache/hadoop/hdfs/server/blockmanagement/TestAvailableSpaceRackFaultTolerantBPP.java

hadoop-yetus · 2021-10-21T10:04:39Z

🎊 +1 overall

Vote	Subsystem	Runtime	Logfile	Comment
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			_ Prechecks _
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+1 💚	@author	0m 0s		The patch does not contain any @author tags.
+1 💚	test4tests	0m 0s		The patch appears to include 2 new or modified test files.
			_ trunk Compile Tests _
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			_ Patch Compile Tests _
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			_ Other Tests _
+1 💚	unit	227m 53s		hadoop-hdfs in the patch passed.
+1 💚	asflicense	0m 47s		The patch does not generate ASF License warnings.
		323m 37s

Subsystem	Report/Notes
Docker	ClientAPI=1.41 ServerAPI=1.41 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3559/8/artifact/out/Dockerfile
GITHUB PR	#3559
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versions	git=2.25.1 maven=3.6.3 spotbugs=4.2.2
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GuoPhilipse · 2021-10-21T10:49:39Z

@ayushtkn Thanks your timely review, comments have been improved and tests are ok.

ayushtkn

Jenkins have reported some checkstyle warnings
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3559/8/artifact/out/results-checkstyle-hadoop-hdfs-project_hadoop-hdfs.txt

They seems to be for line length, Can you check once, I guess the ones reported from test can be fixed.
Couple of them are because the variable name is big, I think we can ignore them, as there is no good way to get rid of them.

Apart from that. Changes LGTM

GuoPhilipse · 2021-10-21T11:56:30Z

Jenkins have reported some checkstyle warnings https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3559/8/artifact/out/results-checkstyle-hadoop-hdfs-project_hadoop-hdfs.txt

They seems to be for line length, Can you check once, I guess the ones reported from test can be fixed. Couple of them are because the variable name is big, I think we can ignore them, as there is no good way to get rid of them.

Apart from that. Changes LGTM

Thanks @ayushtkn ,checkstyle has been fixed.except for the long variable name ones.

hadoop-yetus · 2021-10-21T12:09:37Z

💔 -1 overall

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			_ Prechecks _
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			_ trunk Compile Tests _
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			_ Patch Compile Tests _
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-1 ❌	javac	0m 22s	/patch-compile-hadoop-hdfs-project_hadoop-hdfs-jdkUbuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04.txt	hadoop-hdfs in the patch failed with JDK Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04.
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+1 💚	xml	0m 2s		The patch has no ill-formed XML file.
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+1 💚	shadedclient	3m 15s		patch has no errors when building and testing our client artifacts.
			_ Other Tests _
-1 ❌	unit	0m 23s	/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt	hadoop-hdfs in the patch failed.
+0 🆗	asflicense	0m 22s		ASF License check generated no output?
		14m 20s

Subsystem	Report/Notes
Docker	ClientAPI=1.41 ServerAPI=1.41 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3559/9/artifact/out/Dockerfile
GITHUB PR	#3559
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hadoop-yetus · 2021-10-21T12:38:33Z

💔 -1 overall

Vote	Subsystem	Runtime	Logfile	Comment
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			_ Prechecks _
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+1 💚	@author	0m 0s		The patch does not contain any @author tags.
+1 💚	test4tests	0m 0s		The patch appears to include 2 new or modified test files.
			_ trunk Compile Tests _
-1 ❌	mvninstall	0m 22s	/branch-mvninstall-root.txt	root in trunk failed.
-1 ❌	compile	0m 22s	/branch-compile-hadoop-hdfs-project_hadoop-hdfs-jdkUbuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04.txt	hadoop-hdfs in trunk failed with JDK Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04.
-1 ❌	compile	0m 23s	/branch-compile-hadoop-hdfs-project_hadoop-hdfs-jdkPrivateBuild-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10.txt	hadoop-hdfs in trunk failed with JDK Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10.
-0 ⚠️	checkstyle	0m 20s	/buildtool-branch-checkstyle-hadoop-hdfs-project_hadoop-hdfs.txt	The patch fails to run checkstyle in hadoop-hdfs
-1 ❌	mvnsite	0m 22s	/branch-mvnsite-hadoop-hdfs-project_hadoop-hdfs.txt	hadoop-hdfs in trunk failed.
-1 ❌	javadoc	0m 22s	/branch-javadoc-hadoop-hdfs-project_hadoop-hdfs-jdkUbuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04.txt	hadoop-hdfs in trunk failed with JDK Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04.
-1 ❌	javadoc	0m 22s	/branch-javadoc-hadoop-hdfs-project_hadoop-hdfs-jdkPrivateBuild-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10.txt	hadoop-hdfs in trunk failed with JDK Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10.
-1 ❌	spotbugs	0m 22s	/branch-spotbugs-hadoop-hdfs-project_hadoop-hdfs.txt	hadoop-hdfs in trunk failed.
+1 💚	shadedclient	2m 36s		branch has no errors when building and testing our client artifacts.
			_ Patch Compile Tests _
-1 ❌	mvninstall	0m 22s	/patch-mvninstall-hadoop-hdfs-project_hadoop-hdfs.txt	hadoop-hdfs in the patch failed.
-1 ❌	compile	0m 22s	/patch-compile-hadoop-hdfs-project_hadoop-hdfs-jdkUbuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04.txt	hadoop-hdfs in the patch failed with JDK Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04.
-1 ❌	javac	0m 22s	/patch-compile-hadoop-hdfs-project_hadoop-hdfs-jdkUbuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04.txt	hadoop-hdfs in the patch failed with JDK Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04.
-1 ❌	compile	0m 22s	/patch-compile-hadoop-hdfs-project_hadoop-hdfs-jdkPrivateBuild-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10.txt	hadoop-hdfs in the patch failed with JDK Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10.
-1 ❌	javac	0m 22s	/patch-compile-hadoop-hdfs-project_hadoop-hdfs-jdkPrivateBuild-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10.txt	hadoop-hdfs in the patch failed with JDK Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10.
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-1 ❌	javadoc	0m 22s	/patch-javadoc-hadoop-hdfs-project_hadoop-hdfs-jdkUbuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04.txt	hadoop-hdfs in the patch failed with JDK Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04.
-1 ❌	javadoc	0m 23s	/patch-javadoc-hadoop-hdfs-project_hadoop-hdfs-jdkPrivateBuild-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10.txt	hadoop-hdfs in the patch failed with JDK Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10.
-1 ❌	spotbugs	0m 23s	/patch-spotbugs-hadoop-hdfs-project_hadoop-hdfs.txt	hadoop-hdfs in the patch failed.
+1 💚	shadedclient	3m 15s		patch has no errors when building and testing our client artifacts.
			_ Other Tests _
-1 ❌	unit	0m 23s	/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt	hadoop-hdfs in the patch failed.
+0 🆗	asflicense	0m 23s		ASF License check generated no output?
		13m 2s

Subsystem	Report/Notes
Docker	ClientAPI=1.41 ServerAPI=1.41 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3559/10/artifact/out/Dockerfile
GITHUB PR	#3559
Optional Tests	dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient spotbugs checkstyle codespell xml markdownlint
uname	Linux c07531c28fb1 4.15.0-58-generic #64-Ubuntu SMP Tue Aug 6 11:12:41 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
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Test Results	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3559/10/testReport/
Max. process+thread count	45 (vs. ulimit of 5500)
modules	C: hadoop-hdfs-project/hadoop-hdfs U: hadoop-hdfs-project/hadoop-hdfs
Console output	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3559/10/console
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prasad-acit · 2021-10-21T13:15:08Z

...n/java/org/apache/hadoop/hdfs/server/blockmanagement/AvailableSpaceBlockPlacementPolicy.java

+
+    if (balancedSpaceTolerance > 20 || balancedSpaceTolerance < 0) {
+      LOG.warn("The value of "
+          + DFS_NAMENODE_AVAILABLE_SPACE_BLOCK_PLACEMENT_POLICY_BALANCED_SPACE_TOLERANCE_KEY


It would be great, if you can print the use configured value here.

thanks @prasad-acit ,seems more clear for the warning message

hadoop-yetus · 2021-10-21T13:25:24Z

💔 -1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	0m 40s		Docker mode activated.
			_ Prechecks _
+1 💚	dupname	0m 0s		No case conflicting files found.
+0 🆗	codespell	0m 0s		codespell was not available.
+0 🆗	markdownlint	0m 0s		markdownlint was not available.
+1 💚	@author	0m 0s		The patch does not contain any @author tags.
+1 💚	test4tests	0m 0s		The patch appears to include 2 new or modified test files.
			_ trunk Compile Tests _
-1 ❌	mvninstall	0m 25s	/branch-mvninstall-root.txt	root in trunk failed.
-1 ❌	compile	0m 25s	/branch-compile-hadoop-hdfs-project_hadoop-hdfs-jdkUbuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04.txt	hadoop-hdfs in trunk failed with JDK Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04.
-1 ❌	compile	0m 25s	/branch-compile-hadoop-hdfs-project_hadoop-hdfs-jdkPrivateBuild-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10.txt	hadoop-hdfs in trunk failed with JDK Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10.
-0 ⚠️	checkstyle	0m 22s	/buildtool-branch-checkstyle-hadoop-hdfs-project_hadoop-hdfs.txt	The patch fails to run checkstyle in hadoop-hdfs
-1 ❌	mvnsite	0m 24s	/branch-mvnsite-hadoop-hdfs-project_hadoop-hdfs.txt	hadoop-hdfs in trunk failed.
-1 ❌	javadoc	0m 24s	/branch-javadoc-hadoop-hdfs-project_hadoop-hdfs-jdkUbuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04.txt	hadoop-hdfs in trunk failed with JDK Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04.
-1 ❌	javadoc	0m 24s	/branch-javadoc-hadoop-hdfs-project_hadoop-hdfs-jdkPrivateBuild-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10.txt	hadoop-hdfs in trunk failed with JDK Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10.
-1 ❌	spotbugs	0m 24s	/branch-spotbugs-hadoop-hdfs-project_hadoop-hdfs.txt	hadoop-hdfs in trunk failed.
+1 💚	shadedclient	2m 49s		branch has no errors when building and testing our client artifacts.
			_ Patch Compile Tests _
-1 ❌	mvninstall	0m 24s	/patch-mvninstall-hadoop-hdfs-project_hadoop-hdfs.txt	hadoop-hdfs in the patch failed.
-1 ❌	compile	0m 25s	/patch-compile-hadoop-hdfs-project_hadoop-hdfs-jdkUbuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04.txt	hadoop-hdfs in the patch failed with JDK Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04.
-1 ❌	javac	0m 25s	/patch-compile-hadoop-hdfs-project_hadoop-hdfs-jdkUbuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04.txt	hadoop-hdfs in the patch failed with JDK Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04.
-1 ❌	compile	0m 24s	/patch-compile-hadoop-hdfs-project_hadoop-hdfs-jdkPrivateBuild-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10.txt	hadoop-hdfs in the patch failed with JDK Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10.
-1 ❌	javac	0m 24s	/patch-compile-hadoop-hdfs-project_hadoop-hdfs-jdkPrivateBuild-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10.txt	hadoop-hdfs in the patch failed with JDK Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10.
+1 💚	blanks	0m 0s		The patch has no blanks issues.
-0 ⚠️	checkstyle	0m 22s	/buildtool-patch-checkstyle-hadoop-hdfs-project_hadoop-hdfs.txt	The patch fails to run checkstyle in hadoop-hdfs
-1 ❌	mvnsite	0m 25s	/patch-mvnsite-hadoop-hdfs-project_hadoop-hdfs.txt	hadoop-hdfs in the patch failed.
+1 💚	xml	0m 2s		The patch has no ill-formed XML file.
-1 ❌	javadoc	0m 24s	/patch-javadoc-hadoop-hdfs-project_hadoop-hdfs-jdkUbuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04.txt	hadoop-hdfs in the patch failed with JDK Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04.
-1 ❌	javadoc	0m 25s	/patch-javadoc-hadoop-hdfs-project_hadoop-hdfs-jdkPrivateBuild-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10.txt	hadoop-hdfs in the patch failed with JDK Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10.
-1 ❌	spotbugs	0m 25s	/patch-spotbugs-hadoop-hdfs-project_hadoop-hdfs.txt	hadoop-hdfs in the patch failed.
+1 💚	shadedclient	3m 31s		patch has no errors when building and testing our client artifacts.
			_ Other Tests _
-1 ❌	unit	0m 25s	/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt	hadoop-hdfs in the patch failed.
+0 🆗	asflicense	0m 25s		ASF License check generated no output?
		13m 35s

Subsystem	Report/Notes
Docker	ClientAPI=1.41 ServerAPI=1.41 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3559/11/artifact/out/Dockerfile
GITHUB PR	#3559
Optional Tests	dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient spotbugs checkstyle codespell xml markdownlint
uname	Linux 55af6cc3527a 4.15.0-58-generic #64-Ubuntu SMP Tue Aug 6 11:12:41 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev-support/bin/hadoop.sh
git revision	trunk / `e47e0cf`
Default Java	Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10
Multi-JDK versions	/usr/lib/jvm/java-11-openjdk-amd64:Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04 /usr/lib/jvm/java-8-openjdk-amd64:Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10
Test Results	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3559/11/testReport/
Max. process+thread count	11 (vs. ulimit of 5500)
modules	C: hadoop-hdfs-project/hadoop-hdfs U: hadoop-hdfs-project/hadoop-hdfs
Console output	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3559/11/console
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GuoPhilipse · 2021-10-21T13:33:24Z

It seems github issue ?
the mvn error message was the following
ERROR: Failed to write github status. Token expired or missing repo:status write?

hadoop-yetus · 2021-10-21T13:48:47Z

💔 -1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	0m 49s		Docker mode activated.
			_ Prechecks _
+1 💚	dupname	0m 0s		No case conflicting files found.
+0 🆗	codespell	0m 0s		codespell was not available.
+0 🆗	markdownlint	0m 0s		markdownlint was not available.
+1 💚	@author	0m 0s		The patch does not contain any @author tags.
+1 💚	test4tests	0m 0s		The patch appears to include 2 new or modified test files.
			_ trunk Compile Tests _
-1 ❌	mvninstall	0m 25s	/branch-mvninstall-root.txt	root in trunk failed.
-1 ❌	compile	0m 25s	/branch-compile-hadoop-hdfs-project_hadoop-hdfs-jdkUbuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04.txt	hadoop-hdfs in trunk failed with JDK Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04.
-1 ❌	compile	0m 25s	/branch-compile-hadoop-hdfs-project_hadoop-hdfs-jdkPrivateBuild-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10.txt	hadoop-hdfs in trunk failed with JDK Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10.
-0 ⚠️	checkstyle	0m 23s	/buildtool-branch-checkstyle-hadoop-hdfs-project_hadoop-hdfs.txt	The patch fails to run checkstyle in hadoop-hdfs
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-1 ❌	javadoc	0m 25s	/branch-javadoc-hadoop-hdfs-project_hadoop-hdfs-jdkUbuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04.txt	hadoop-hdfs in trunk failed with JDK Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04.
-1 ❌	javadoc	0m 25s	/branch-javadoc-hadoop-hdfs-project_hadoop-hdfs-jdkPrivateBuild-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10.txt	hadoop-hdfs in trunk failed with JDK Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10.
-1 ❌	spotbugs	0m 24s	/branch-spotbugs-hadoop-hdfs-project_hadoop-hdfs.txt	hadoop-hdfs in trunk failed.
+1 💚	shadedclient	2m 52s		branch has no errors when building and testing our client artifacts.
			_ Patch Compile Tests _
-1 ❌	mvninstall	0m 25s	/patch-mvninstall-hadoop-hdfs-project_hadoop-hdfs.txt	hadoop-hdfs in the patch failed.
-1 ❌	compile	0m 25s	/patch-compile-hadoop-hdfs-project_hadoop-hdfs-jdkUbuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04.txt	hadoop-hdfs in the patch failed with JDK Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04.
-1 ❌	javac	0m 25s	/patch-compile-hadoop-hdfs-project_hadoop-hdfs-jdkUbuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04.txt	hadoop-hdfs in the patch failed with JDK Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04.
-1 ❌	compile	0m 25s	/patch-compile-hadoop-hdfs-project_hadoop-hdfs-jdkPrivateBuild-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10.txt	hadoop-hdfs in the patch failed with JDK Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10.
-1 ❌	javac	0m 25s	/patch-compile-hadoop-hdfs-project_hadoop-hdfs-jdkPrivateBuild-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10.txt	hadoop-hdfs in the patch failed with JDK Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10.
+1 💚	blanks	0m 0s		The patch has no blanks issues.
-0 ⚠️	checkstyle	0m 22s	/buildtool-patch-checkstyle-hadoop-hdfs-project_hadoop-hdfs.txt	The patch fails to run checkstyle in hadoop-hdfs
-1 ❌	mvnsite	0m 24s	/patch-mvnsite-hadoop-hdfs-project_hadoop-hdfs.txt	hadoop-hdfs in the patch failed.
+1 💚	xml	0m 1s		The patch has no ill-formed XML file.
-1 ❌	javadoc	0m 25s	/patch-javadoc-hadoop-hdfs-project_hadoop-hdfs-jdkUbuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04.txt	hadoop-hdfs in the patch failed with JDK Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04.
-1 ❌	javadoc	0m 24s	/patch-javadoc-hadoop-hdfs-project_hadoop-hdfs-jdkPrivateBuild-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10.txt	hadoop-hdfs in the patch failed with JDK Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10.
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			_ Other Tests _
-1 ❌	unit	0m 24s	/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt	hadoop-hdfs in the patch failed.
+0 🆗	asflicense	0m 25s		ASF License check generated no output?
		13m 51s

Subsystem	Report/Notes
Docker	ClientAPI=1.41 ServerAPI=1.41 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3559/12/artifact/out/Dockerfile
GITHUB PR	#3559
Optional Tests	dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient spotbugs checkstyle codespell xml markdownlint
uname	Linux 86c189f4e603 4.15.0-58-generic #64-Ubuntu SMP Tue Aug 6 11:12:41 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
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Test Results	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3559/12/testReport/
Max. process+thread count	45 (vs. ulimit of 5500)
modules	C: hadoop-hdfs-project/hadoop-hdfs U: hadoop-hdfs-project/hadoop-hdfs
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versions	git=2.25.1 maven=3.6.3
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prasad-acit · 2021-10-21T13:58:45Z

.../hadoop/hdfs/server/blockmanagement/AvailableSpaceRackFaultTolerantBlockPlacementPolicy.java

@@ -54,6 +57,10 @@ public void initialize(Configuration conf, FSClusterStats stats,
        DFS_NAMENODE_AVAILABLE_SPACE_RACK_FAULT_TOLERANT_BLOCK_PLACEMENT_POLICY_BALANCED_SPACE_PREFERENCE_FRACTION_KEY,
        DFS_NAMENODE_AVAILABLE_SPACE_BLOCK_RACK_FAULT_TOLERANT_PLACEMENT_POLICY_BALANCED_SPACE_PREFERENCE_FRACTION_DEFAULT);

+    balancedSpaceTolerance = conf.getInt(
+            DFS_NAMENODE_AVAILABLE_SPACE_RACK_FAULT_TOLERANT_BLOCK_PLACEMENT_POLICY_BALANCED_SPACE_TOLERANCE_KEY,
+            DFS_NAMENODE_AVAILABLE_SPACE_BLOCK_RACK_FAULT_TOLERANT_PLACEMENT_POLICY_BALANCED_SPACE_TOLERANCE_DEFAULT);


Constants exceed the length lead to length issue, can be shrinked. BLOCK_PLACEMENT_POLICY => BPP can be used. Other places already large, atleast new code we can target.

Thanks @prasad-acit for your advice ,it should be used for total new code , for now, if we cut ir for short, the variable name meaning may not that clear,maybe we can igonre it, and apply the short name as far as possible in furture.

ayushtkn · 2021-10-21T14:23:51Z

@GuoPhilipse I have retriggred the build here:
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3559/13/console
More or less looks like an Infra issue
If it works, cool, if not I will try to figure that out. It is on me. :-)

GuoPhilipse · 2021-10-21T15:19:13Z

@GuoPhilipse I have retriggred the build here: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3559/13/console More or less looks like an Infra issue If it works, cool, if not I will try to figure that out. It is on me. :-)

Realy appreciate it! @ayushtkn :)

hadoop-yetus · 2021-10-21T19:42:17Z

🎊 +1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	0m 40s		Docker mode activated.
			_ Prechecks _
+1 💚	dupname	0m 0s		No case conflicting files found.
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+0 🆗	markdownlint	0m 1s		markdownlint was not available.
+1 💚	@author	0m 0s		The patch does not contain any @author tags.
+1 💚	test4tests	0m 0s		The patch appears to include 2 new or modified test files.
			_ trunk Compile Tests _
+1 💚	mvninstall	33m 16s		trunk passed
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			_ Patch Compile Tests _
+1 💚	mvninstall	1m 16s		the patch passed
+1 💚	compile	1m 25s		the patch passed with JDK Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04
+1 💚	javac	1m 25s		the patch passed
+1 💚	compile	1m 10s		the patch passed with JDK Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10
+1 💚	javac	1m 10s		the patch passed
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+1 💚	mvnsite	1m 15s		the patch passed
+1 💚	xml	0m 2s		The patch has no ill-formed XML file.
+1 💚	javadoc	0m 48s		the patch passed with JDK Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04
+1 💚	javadoc	1m 25s		the patch passed with JDK Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10
+1 💚	spotbugs	3m 17s		the patch passed
+1 💚	shadedclient	21m 35s		patch has no errors when building and testing our client artifacts.
			_ Other Tests _
+1 💚	unit	224m 15s		hadoop-hdfs in the patch passed.
+1 💚	asflicense	0m 47s		The patch does not generate ASF License warnings.
		322m 26s

Subsystem	Report/Notes
Docker	ClientAPI=1.41 ServerAPI=1.41 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3559/13/artifact/out/Dockerfile
GITHUB PR	#3559
Optional Tests	dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient spotbugs checkstyle codespell xml markdownlint
uname	Linux d084898ca220 4.15.0-58-generic #64-Ubuntu SMP Tue Aug 6 11:12:41 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev-support/bin/hadoop.sh
git revision	trunk / `7d5be4e`
Default Java	Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10
Multi-JDK versions	/usr/lib/jvm/java-11-openjdk-amd64:Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04 /usr/lib/jvm/java-8-openjdk-amd64:Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10
Test Results	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3559/13/testReport/
Max. process+thread count	3299 (vs. ulimit of 5500)
modules	C: hadoop-hdfs-project/hadoop-hdfs U: hadoop-hdfs-project/hadoop-hdfs
Console output	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3559/13/console
versions	git=2.25.1 maven=3.6.3 spotbugs=4.2.2
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GuoPhilipse · 2021-10-21T23:53:58Z

@GuoPhilipse I have retriggred the build here: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3559/13/console More or less looks like an Infra issue If it works, cool, if not I will try to figure that out. It is on me. :-)

Cool,it shows +1 overall, but still have failed check in report ,not sure if it is normal ? @ayushtkn

ayushtkn · 2021-10-22T02:30:56Z

Thanx @GuoPhilipse for the contribution, Have merged the PR.
Yeps, the build is ok.

GuoPhilipse · 2021-10-22T02:32:29Z

Thanks again @ayushtkn @prasad-acit for your kindly review. :)

…3559). Contributed by guo. Signed-off-by: Ayush Saxena <ayushsaxena@apache.org>

…pache#3559). Contributed by guo. Signed-off-by: Ayush Saxena <ayushsaxena@apache.org>

GuoPhilipse and others added 6 commits November 29, 2020 05:02

Merge pull request #1 from apache/trunk

3c51579

sync

Merge pull request #2 from apache/trunk

a449d04

sync

Merge pull request #3 from apache/trunk

d4f968b

sync

Merge pull request #4 from apache/trunk

d522abf

sync

Merge pull request #5 from apache/trunk

de633b8

sync

improvepolicy

e71e324

ayushtkn requested changes Oct 16, 2021

View reviewed changes

GuoPhilipse changed the title ~~HADOOP-16277 improve decision in AvailableSpaceBlockPlacementPolicy~~ HDFS-16277 improve decision in AvailableSpaceBlockPlacementPolicy Oct 16, 2021

make paramter configured

0ed2dd8

ayushtkn reviewed Oct 19, 2021

View reviewed changes

fixcomment

6ec0b22

fixcomment

e91f9fd

fixcheckstyle

44e4785

GuoPhilipse added 2 commits October 20, 2021 23:28

optimizecode

dbfd21b

remove unused imports

3af5420

ayushtkn reviewed Oct 21, 2021

View reviewed changes

fixcomment

91b8d43

ayushtkn approved these changes Oct 21, 2021

View reviewed changes

fixcheckstyle

b9bcef2

triggerrebuild

77ab40d

triggerrebuild

e47e0cf

prasad-acit reviewed Oct 21, 2021

View reviewed changes

fixcomment

7d5be4e

prasad-acit reviewed Oct 21, 2021

View reviewed changes

ayushtkn merged commit 1385cdf into apache:trunk Oct 22, 2021

asfgit pushed a commit that referenced this pull request Oct 22, 2021

HDFS-16277. improve decision in AvailableSpaceBlockPlacementPolicy (#…

c4f1db1

…3559). Contributed by guo. Signed-off-by: Ayush Saxena <ayushsaxena@apache.org>

GuoPhilipse deleted the improvepolicy branch November 25, 2021 11:57

HarshitGupta11 pushed a commit to HarshitGupta11/hadoop that referenced this pull request Nov 28, 2022

HDFS-16277. improve decision in AvailableSpaceBlockPlacementPolicy (a…

97dab50

…pache#3559). Contributed by guo. Signed-off-by: Ayush Saxena <ayushsaxena@apache.org>

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HDFS-16277 improve decision in AvailableSpaceBlockPlacementPolicy #3559

HDFS-16277 improve decision in AvailableSpaceBlockPlacementPolicy #3559

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HDFS-16277 improve decision in AvailableSpaceBlockPlacementPolicy #3559

HDFS-16277 improve decision in AvailableSpaceBlockPlacementPolicy #3559

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