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https://issues.apache.org/jira/browse/HDFS-15963?focusedWorklogId=583375&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-583375
]
ASF GitHub Bot logged work on HDFS-15963:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 15/Apr/21 12:43
Start Date: 15/Apr/21 12:43
Worklog Time Spent: 10m
Work Description: hadoop-yetus commented on pull request #2889:
URL: https://github.com/apache/hadoop/pull/2889#issuecomment-820392449
:broken_heart: **-1 overall**
| Vote | Subsystem | Runtime | Logfile | Comment |
|:----:|----------:|--------:|:--------:|:-------:|
| +0 :ok: | reexec | 0m 46s | | Docker mode activated. |
|||| _ Prechecks _ |
| +1 :green_heart: | dupname | 0m 1s | | No case conflicting files
found. |
| +0 :ok: | codespell | 0m 0s | | codespell was not available. |
| +1 :green_heart: | @author | 0m 0s | | The patch does not contain
any @author tags. |
| +1 :green_heart: | test4tests | 0m 0s | | The patch appears to
include 3 new or modified test files. |
|||| _ trunk Compile Tests _ |
| +1 :green_heart: | mvninstall | 35m 13s | | trunk passed |
| +1 :green_heart: | compile | 1m 23s | | trunk passed with JDK
Ubuntu-11.0.10+9-Ubuntu-0ubuntu1.20.04 |
| +1 :green_heart: | compile | 1m 17s | | trunk passed with JDK
Private Build-1.8.0_282-8u282-b08-0ubuntu1~20.04-b08 |
| +1 :green_heart: | checkstyle | 1m 2s | | trunk passed |
| +1 :green_heart: | mvnsite | 1m 22s | | trunk passed |
| +1 :green_heart: | javadoc | 0m 52s | | trunk passed with JDK
Ubuntu-11.0.10+9-Ubuntu-0ubuntu1.20.04 |
| +1 :green_heart: | javadoc | 1m 26s | | trunk passed with JDK
Private Build-1.8.0_282-8u282-b08-0ubuntu1~20.04-b08 |
| +1 :green_heart: | spotbugs | 3m 11s | | trunk passed |
| +1 :green_heart: | shadedclient | 17m 10s | | branch has no errors
when building and testing our client artifacts. |
|||| _ Patch Compile Tests _ |
| +1 :green_heart: | mvninstall | 1m 16s | | the patch passed |
| +1 :green_heart: | compile | 1m 12s | | the patch passed with JDK
Ubuntu-11.0.10+9-Ubuntu-0ubuntu1.20.04 |
| +1 :green_heart: | javac | 1m 12s | | the patch passed |
| +1 :green_heart: | compile | 1m 7s | | the patch passed with JDK
Private Build-1.8.0_282-8u282-b08-0ubuntu1~20.04-b08 |
| +1 :green_heart: | javac | 1m 7s | | the patch passed |
| +1 :green_heart: | blanks | 0m 0s | | The patch has no blanks
issues. |
| +1 :green_heart: | checkstyle | 0m 55s | | the patch passed |
| +1 :green_heart: | mvnsite | 1m 18s | | the patch passed |
| +1 :green_heart: | javadoc | 0m 46s | | the patch passed with JDK
Ubuntu-11.0.10+9-Ubuntu-0ubuntu1.20.04 |
| +1 :green_heart: | javadoc | 1m 20s | | the patch passed with JDK
Private Build-1.8.0_282-8u282-b08-0ubuntu1~20.04-b08 |
| +1 :green_heart: | spotbugs | 3m 16s | | the patch passed |
| +1 :green_heart: | shadedclient | 16m 15s | | patch has no errors
when building and testing our client artifacts. |
|||| _ Other Tests _ |
| -1 :x: | unit | 230m 8s |
[/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2889/9/artifact/out/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt)
| hadoop-hdfs in the patch passed. |
| +1 :green_heart: | asflicense | 0m 46s | | The patch does not
generate ASF License warnings. |
| | | 319m 33s | | |
| Reason | Tests |
|-------:|:------|
| Failed junit tests |
hadoop.hdfs.qjournal.server.TestJournalNodeRespectsBindHostKeys |
| | hadoop.hdfs.server.namenode.snapshot.TestNestedSnapshots |
| | hadoop.hdfs.server.datanode.TestDirectoryScanner |
| Subsystem | Report/Notes |
|----------:|:-------------|
| Docker | ClientAPI=1.41 ServerAPI=1.41 base:
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2889/9/artifact/out/Dockerfile
|
| GITHUB PR | https://github.com/apache/hadoop/pull/2889 |
| Optional Tests | dupname asflicense compile javac javadoc mvninstall
mvnsite unit shadedclient spotbugs checkstyle codespell |
| uname | Linux 67782299aa3f 4.15.0-60-generic #67-Ubuntu SMP Thu Aug 22
16:55:30 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | dev-support/bin/hadoop.sh |
| git revision | trunk / 28864d413d5c9c89609b51743443888075307ecd |
| Default Java | Private Build-1.8.0_282-8u282-b08-0ubuntu1~20.04-b08 |
| Multi-JDK versions |
/usr/lib/jvm/java-11-openjdk-amd64:Ubuntu-11.0.10+9-Ubuntu-0ubuntu1.20.04
/usr/lib/jvm/java-8-openjdk-amd64:Private
Build-1.8.0_282-8u282-b08-0ubuntu1~20.04-b08 |
| Test Results |
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2889/9/testReport/ |
| Max. process+thread count | 3627 (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-2889/9/console |
| versions | git=2.25.1 maven=3.6.3 spotbugs=4.2.2 |
| Powered by | Apache Yetus 0.14.0-SNAPSHOT https://yetus.apache.org |
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Issue Time Tracking
-------------------
Worklog Id: (was: 583375)
Time Spent: 3h 20m (was: 3h 10m)
> Unreleased volume references cause an infinite loop
> ---------------------------------------------------
>
> Key: HDFS-15963
> URL: https://issues.apache.org/jira/browse/HDFS-15963
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: datanode
> Reporter: Shuyan Zhang
> Assignee: Shuyan Zhang
> Priority: Major
> Labels: pull-request-available
> Attachments: HDFS-15963.001.patch, HDFS-15963.002.patch,
> HDFS-15963.003.patch
>
> Time Spent: 3h 20m
> Remaining Estimate: 0h
>
> When BlockSender throws an exception because the meta-data cannot be found,
> the volume reference obtained by the thread is not released, which causes the
> thread trying to remove the volume to wait and fall into an infinite loop.
> {code:java}
> boolean checkVolumesRemoved() {
> Iterator<FsVolumeImpl> it = volumesBeingRemoved.iterator();
> while (it.hasNext()) {
> FsVolumeImpl volume = it.next();
> if (!volume.checkClosed()) {
> return false;
> }
> it.remove();
> }
> return true;
> }
> boolean checkClosed() {
> // always be true.
> if (this.reference.getReferenceCount() > 0) {
> FsDatasetImpl.LOG.debug("The reference count for {} is {}, wait to be 0.",
> this, reference.getReferenceCount());
> return false;
> }
> return true;
> }
> {code}
> At the same time, because the thread has been holding checkDirsLock when
> removing the volume, other threads trying to acquire the same lock will be
> permanently blocked.
> Similar problems also occur in RamDiskAsyncLazyPersistService and
> FsDatasetAsyncDiskService.
> This patch releases the three previously unreleased volume references.
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