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HDFS-16510. Fix EC decommission when rack is not enough #4078

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HDFS-16510. Fix EC decommission when rack is not enough #4078

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cndaimin
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The decommission always fail when we start decommission multiple nodes on a cluster whose racks is not enough, a cluster with 6 racks to deploy RS-6-3, for example.

We find that those decommission nodes cover at least a rack, it's actulaly like we are decommission one or more racks. And rack decommission is not well supported currently, especially for cluster whose racks is not enough already.

In this patch, we add numOfExcludedRacks to indicate how many racks are in decommission(excluded) and fix the calculation of BlockPlacementStatusDefault#getAdditionalReplicasRequired. And in ErasureCodingWork#addTaskToDatanode, we adjust the process order as we should take care of decommission first, especially when rack is not enough.

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_ trunk Compile Tests _
+1 💚 mvninstall 38m 19s trunk passed
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_ Patch Compile Tests _
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-1 ❌ blanks 0m 0s /blanks-tabs.txt The patch 59 line(s) with tabs.
-0 ⚠️ checkstyle 1m 1s /results-checkstyle-hadoop-hdfs-project_hadoop-hdfs.txt hadoop-hdfs-project/hadoop-hdfs: The patch generated 60 new + 62 unchanged - 0 fixed = 122 total (was 62)
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_ Other Tests _
-1 ❌ unit 317m 49s /patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt hadoop-hdfs in the patch passed.
+1 💚 asflicense 0m 38s The patch does not generate ASF License warnings.
432m 16s
Reason Tests
Failed junit tests hadoop.hdfs.server.blockmanagement.TestBlocksWithNotEnoughRacks
hadoop.hdfs.server.namenode.TestFsck
Subsystem Report/Notes
Docker ClientAPI=1.41 ServerAPI=1.41 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4078/1/artifact/out/Dockerfile
GITHUB PR #4078
Optional Tests dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient spotbugs checkstyle codespell
uname Linux 0e5038e3fbfd 4.15.0-163-generic #171-Ubuntu SMP Fri Nov 5 11:55:11 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
Build tool maven
Personality dev-support/bin/hadoop.sh
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Multi-JDK versions /usr/lib/jvm/java-11-openjdk-amd64:Ubuntu-11.0.14+9-Ubuntu-0ubuntu2.20.04 /usr/lib/jvm/java-8-openjdk-amd64:Private Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07
Test Results https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4078/1/testReport/
Max. process+thread count 2350 (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-4078/1/console
versions git=2.25.1 maven=3.6.3 spotbugs=4.2.2
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_ trunk Compile Tests _
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_ Patch Compile Tests _
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-0 ⚠️ checkstyle 0m 53s /results-checkstyle-hadoop-hdfs-project_hadoop-hdfs.txt hadoop-hdfs-project/hadoop-hdfs: The patch generated 2 new + 62 unchanged - 0 fixed = 64 total (was 62)
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_ Other Tests _
-1 ❌ unit 388m 14s /patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt hadoop-hdfs in the patch passed.
+1 💚 asflicense 0m 39s The patch does not generate ASF License warnings.
460m 12s
Reason Tests
Failed junit tests hadoop.hdfs.server.blockmanagement.TestBlocksWithNotEnoughRacks
hadoop.hdfs.server.namenode.TestFsck
hadoop.hdfs.server.diskbalancer.command.TestDiskBalancerCommand
Subsystem Report/Notes
Docker ClientAPI=1.41 ServerAPI=1.41 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4078/2/artifact/out/Dockerfile
GITHUB PR #4078
Optional Tests dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient spotbugs checkstyle codespell
uname Linux e86a90a55dc1 4.15.0-163-generic #171-Ubuntu SMP Fri Nov 5 11:55:11 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
Build tool maven
Personality dev-support/bin/hadoop.sh
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Default Java Private Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07
Multi-JDK versions /usr/lib/jvm/java-11-openjdk-amd64:Ubuntu-11.0.14+9-Ubuntu-0ubuntu2.20.04 /usr/lib/jvm/java-8-openjdk-amd64:Private Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07
Test Results https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4078/2/testReport/
Max. process+thread count 2048 (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-4078/2/console
versions git=2.25.1 maven=3.6.3 spotbugs=4.2.2
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Vote Subsystem Runtime Logfile Comment
+0 🆗 reexec 0m 41s 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 268m 12s /patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt hadoop-hdfs in the patch passed.
+1 💚 asflicense 0m 47s The patch does not generate ASF License warnings.
383m 28s
Reason Tests
Failed junit tests hadoop.hdfs.tools.TestECAdmin
hadoop.hdfs.tools.offlineImageViewer.TestOfflineImageViewerForXAttr
hadoop.hdfs.TestErasureCodingExerciseAPIs
hadoop.hdfs.tools.TestViewFileSystemOverloadSchemeWithDFSAdmin
hadoop.hdfs.tools.TestDFSAdmin
hadoop.hdfs.server.namenode.TestFsck
hadoop.hdfs.tools.offlineImageViewer.TestOfflineImageViewerWithStripedBlocks
hadoop.cli.TestHDFSCLI
hadoop.hdfs.TestDFSStripedOutputStream
hadoop.hdfs.server.blockmanagement.TestBlocksWithNotEnoughRacks
hadoop.hdfs.tools.offlineEditsViewer.TestOfflineEditsViewer
hadoop.hdfs.TestDFSStripedOutputStreamWithFailure
hadoop.hdfs.tools.TestDFSAdminWithHA
Subsystem Report/Notes
Docker ClientAPI=1.41 ServerAPI=1.41 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4078/3/artifact/out/Dockerfile
GITHUB PR #4078
Optional Tests dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient spotbugs checkstyle codespell
uname Linux c0ddad626b35 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
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Default Java Private Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07
Multi-JDK versions /usr/lib/jvm/java-11-openjdk-amd64:Ubuntu-11.0.14+9-Ubuntu-0ubuntu2.20.04 /usr/lib/jvm/java-8-openjdk-amd64:Private Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07
Test Results https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4078/3/testReport/
Max. process+thread count 3195 (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-4078/3/console
versions git=2.25.1 maven=3.6.3 spotbugs=4.2.2
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💔 -1 overall

Vote Subsystem Runtime Logfile Comment
+0 🆗 reexec 0m 42s 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 296m 52s /patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt hadoop-hdfs in the patch passed.
+1 💚 asflicense 0m 46s The patch does not generate ASF License warnings.
397m 23s
Reason Tests
Failed junit tests hadoop.hdfs.server.datanode.TestBlockScanner
hadoop.hdfs.server.mover.TestStorageMover
hadoop.hdfs.server.datanode.TestDataNodeVolumeFailureToleration
hadoop.hdfs.server.datanode.TestDirectoryScanner
hadoop.hdfs.server.datanode.TestLargeBlockReport
hadoop.hdfs.server.datanode.TestDataNodeRollingUpgrade
hadoop.hdfs.server.datanode.TestBlockRecovery2
hadoop.hdfs.server.datanode.TestDataNodeErasureCodingMetrics
hadoop.hdfs.server.balancer.TestBalancerRPCDelay
hadoop.hdfs.server.mover.TestMover
hadoop.hdfs.server.datanode.TestDataNodeReconfiguration
Subsystem Report/Notes
Docker ClientAPI=1.41 ServerAPI=1.41 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4078/4/artifact/out/Dockerfile
GITHUB PR #4078
Optional Tests dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient spotbugs checkstyle codespell
uname Linux 3a4bfccb7a6c 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 / 5189b31c69764ff5f731fbfe8a1033594c83a427
Default Java Private Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07
Multi-JDK versions /usr/lib/jvm/java-11-openjdk-amd64:Ubuntu-11.0.14+9-Ubuntu-0ubuntu2.20.04 /usr/lib/jvm/java-8-openjdk-amd64:Private Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07
Test Results https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4078/4/testReport/
Max. process+thread count 2935 (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-4078/4/console
versions git=2.25.1 maven=3.6.3 spotbugs=4.2.2
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🎊 +1 overall

Vote Subsystem Runtime Logfile Comment
+0 🆗 reexec 1m 14s Docker mode activated.
_ Prechecks _
+1 💚 dupname 0m 0s No case conflicting files found.
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_ trunk Compile Tests _
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_ Patch Compile Tests _
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+1 💚 javac 1m 24s the patch passed
+1 💚 compile 1m 17s the patch passed with JDK Private Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07
+1 💚 javac 1m 17s the patch passed
+1 💚 blanks 0m 0s The patch has no blanks issues.
+1 💚 checkstyle 1m 0s the patch passed
+1 💚 mvnsite 1m 25s the patch passed
+1 💚 javadoc 0m 55s the patch passed with JDK Ubuntu-11.0.14+9-Ubuntu-0ubuntu2.20.04
+1 💚 javadoc 1m 30s the patch passed with JDK Private Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07
+1 💚 spotbugs 3m 29s the patch passed
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_ Other Tests _
+1 💚 unit 242m 25s hadoop-hdfs in the patch passed.
+1 💚 asflicense 0m 45s The patch does not generate ASF License warnings.
346m 32s
Subsystem Report/Notes
Docker ClientAPI=1.41 ServerAPI=1.41 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4078/5/artifact/out/Dockerfile
GITHUB PR #4078
Optional Tests dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient spotbugs checkstyle codespell
uname Linux 3c3ca0354cfe 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 / 6675d6f
Default Java Private Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07
Multi-JDK versions /usr/lib/jvm/java-11-openjdk-amd64:Ubuntu-11.0.14+9-Ubuntu-0ubuntu2.20.04 /usr/lib/jvm/java-8-openjdk-amd64:Private Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07
Test Results https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4078/5/testReport/
Max. process+thread count 2889 (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-4078/5/console
versions git=2.25.1 maven=3.6.3 spotbugs=4.2.2
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@Jing9 @jojochuang @sodonnel @ayushtkn Do you have time to take a look on this? I think it's a problem we need to fix in EC, thanks a lot.

@cndaimin
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Conflicts with HDFS-16456, close it.

@cndaimin cndaimin closed this Apr 18, 2022
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