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https://issues.apache.org/jira/browse/HDFS-17342?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17808272#comment-17808272
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ASF GitHub Bot commented on HDFS-17342:
---------------------------------------
hadoop-yetus commented on PR #6464:
URL: https://github.com/apache/hadoop/pull/6464#issuecomment-1898730447
:broken_heart: **-1 overall**
| Vote | Subsystem | Runtime | Logfile | Comment |
|:----:|----------:|--------:|:--------:|:-------:|
| +0 :ok: | reexec | 0m 22s | | Docker mode activated. |
|||| _ Prechecks _ |
| +1 :green_heart: | dupname | 0m 0s | | No case conflicting files
found. |
| +0 :ok: | codespell | 0m 0s | | codespell was not available. |
| +0 :ok: | detsecrets | 0m 0s | | detect-secrets 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 1 new or modified test files. |
|||| _ trunk Compile Tests _ |
| +1 :green_heart: | mvninstall | 34m 14s | | trunk passed |
| +1 :green_heart: | compile | 0m 44s | | trunk passed with JDK
Ubuntu-11.0.21+9-post-Ubuntu-0ubuntu120.04 |
| +1 :green_heart: | compile | 0m 41s | | trunk passed with JDK
Private Build-1.8.0_392-8u392-ga-1~20.04-b08 |
| +1 :green_heart: | checkstyle | 0m 40s | | trunk passed |
| +1 :green_heart: | mvnsite | 0m 46s | | trunk passed |
| +1 :green_heart: | javadoc | 0m 43s | | trunk passed with JDK
Ubuntu-11.0.21+9-post-Ubuntu-0ubuntu120.04 |
| +1 :green_heart: | javadoc | 1m 5s | | trunk passed with JDK
Private Build-1.8.0_392-8u392-ga-1~20.04-b08 |
| +1 :green_heart: | spotbugs | 1m 58s | | trunk passed |
| +1 :green_heart: | shadedclient | 22m 48s | | branch has no errors
when building and testing our client artifacts. |
|||| _ Patch Compile Tests _ |
| +1 :green_heart: | mvninstall | 0m 41s | | the patch passed |
| +1 :green_heart: | compile | 0m 39s | | the patch passed with JDK
Ubuntu-11.0.21+9-post-Ubuntu-0ubuntu120.04 |
| +1 :green_heart: | javac | 0m 39s | | the patch passed |
| +1 :green_heart: | compile | 0m 37s | | the patch passed with JDK
Private Build-1.8.0_392-8u392-ga-1~20.04-b08 |
| +1 :green_heart: | javac | 0m 37s | | the patch passed |
| +1 :green_heart: | blanks | 0m 0s | | The patch has no blanks
issues. |
| -0 :warning: | checkstyle | 0m 32s |
[/results-checkstyle-hadoop-hdfs-project_hadoop-hdfs.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-6464/3/artifact/out/results-checkstyle-hadoop-hdfs-project_hadoop-hdfs.txt)
| hadoop-hdfs-project/hadoop-hdfs: The patch generated 1 new + 87 unchanged -
0 fixed = 88 total (was 87) |
| +1 :green_heart: | mvnsite | 0m 41s | | the patch passed |
| +1 :green_heart: | javadoc | 0m 31s | | the patch passed with JDK
Ubuntu-11.0.21+9-post-Ubuntu-0ubuntu120.04 |
| +1 :green_heart: | javadoc | 1m 3s | | the patch passed with JDK
Private Build-1.8.0_392-8u392-ga-1~20.04-b08 |
| +1 :green_heart: | spotbugs | 1m 53s | | the patch passed |
| +1 :green_heart: | shadedclient | 23m 19s | | patch has no errors
when building and testing our client artifacts. |
|||| _ Other Tests _ |
| -1 :x: | unit | 211m 24s |
[/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-6464/3/artifact/out/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt)
| hadoop-hdfs in the patch passed. |
| +1 :green_heart: | asflicense | 0m 21s | | The patch does not
generate ASF License warnings. |
| | | 306m 44s | | |
| Reason | Tests |
|-------:|:------|
| Failed junit tests | hadoop.hdfs.TestDFSStripedInputStream |
| | hadoop.hdfs.TestEncryptionZonesWithKMS |
| | hadoop.hdfs.TestReconstructStripedFile |
| | hadoop.hdfs.server.namenode.snapshot.TestRenameWithSnapshots |
| | hadoop.hdfs.server.datanode.TestDirectoryScanner |
| | hadoop.hdfs.server.namenode.TestReconstructStripedBlocks |
| | hadoop.hdfs.TestDFSStripedOutputStreamWithRandomECPolicy |
| Subsystem | Report/Notes |
|----------:|:-------------|
| Docker | ClientAPI=1.43 ServerAPI=1.43 base:
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-6464/3/artifact/out/Dockerfile
|
| GITHUB PR | https://github.com/apache/hadoop/pull/6464 |
| Optional Tests | dupname asflicense compile javac javadoc mvninstall
mvnsite unit shadedclient spotbugs checkstyle codespell detsecrets |
| uname | Linux 0ea7c919d276 5.15.0-88-generic #98-Ubuntu SMP Mon Oct 2
15:18:56 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | dev-support/bin/hadoop.sh |
| git revision | trunk / 6f5a1f409a25f7f84a463cb434c41f1c89e7a73d |
| Default Java | Private Build-1.8.0_392-8u392-ga-1~20.04-b08 |
| Multi-JDK versions |
/usr/lib/jvm/java-11-openjdk-amd64:Ubuntu-11.0.21+9-post-Ubuntu-0ubuntu120.04
/usr/lib/jvm/java-8-openjdk-amd64:Private Build-1.8.0_392-8u392-ga-1~20.04-b08 |
| Test Results |
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-6464/3/testReport/ |
| Max. process+thread count | 3935 (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-6464/3/console |
| versions | git=2.25.1 maven=3.6.3 spotbugs=4.2.2 |
| Powered by | Apache Yetus 0.14.0 https://yetus.apache.org |
This message was automatically generated.
> Fix DataNode may invalidates normal block causing missing block
> ---------------------------------------------------------------
>
> Key: HDFS-17342
> URL: https://issues.apache.org/jira/browse/HDFS-17342
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Haiyang Hu
> Assignee: Haiyang Hu
> Priority: Major
> Labels: pull-request-available
>
> When users read an append file, occasional exceptions may occur, such as
> org.apache.hadoop.hdfs.BlockMissingException: Could not obtain block: xxx.
> This can happen if one thread is reading the block while writer thread is
> finalizing it simultaneously.
> *Root cause:*
> # The reader thread obtains a RBW replica from VolumeMap, such as:
> blk_xxx_xxx[RBW] and the data file should be in /XXX/rbw/blk_xxx.
> # Simultaneously, the writer thread will finalize this block, moving it from
> the RBW directory to the FINALIZE directory. the data file is move from
> /XXX/rbw/block_xxx to /XXX/finalize/block_xxx.
> # The reader thread attempts to open this data input stream but encounters a
> FileNotFoundException because the data file /XXX/rbw/blk_xxx or meta file
> /XXX/rbw/blk_xxx_xxx doesn't exist at this moment.
> # The reader thread will treats this block as corrupt, removes the replica
> from the volume map, and the DataNode reports the deleted block to the
> NameNode.
> # The NameNode removes this replica for the block.
> # If the current file replication is 1, this file will cause a missing block
> issue until this DataNode executes the DirectoryScanner again.
> As described above, when the reader thread encountered FileNotFoundException
> is as expected, because the file is moved.
> So we need to add a double check to the invalidateMissingBlock logic to
> verify whether the data file or meta file exists to avoid similar cases.
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