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https://issues.apache.org/jira/browse/HDFS-17357?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17840974#comment-17840974
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ASF GitHub Bot commented on HDFS-17357:
---------------------------------------
hadoop-yetus commented on PR #6502:
URL: https://github.com/apache/hadoop/pull/6502#issuecomment-2078169223
:broken_heart: **-1 overall**
| Vote | Subsystem | Runtime | Logfile | Comment |
|:----:|----------:|--------:|:--------:|:-------:|
|||| _ Prechecks _ |
| +1 :green_heart: | dupname | 0m 00s | | No case conflicting files
found. |
| +0 :ok: | spotbugs | 0m 00s | | spotbugs executables are not
available. |
| +0 :ok: | codespell | 0m 01s | | codespell was not available. |
| +0 :ok: | detsecrets | 0m 01s | | detect-secrets was not available.
|
| +1 :green_heart: | @author | 0m 00s | | The patch does not contain
any @author tags. |
| -1 :x: | test4tests | 0m 00s | | 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 :green_heart: | mvninstall | 85m 14s | | trunk passed |
| +1 :green_heart: | compile | 5m 07s | | trunk passed |
| +1 :green_heart: | checkstyle | 4m 21s | | trunk passed |
| +1 :green_heart: | mvnsite | 5m 11s | | trunk passed |
| +1 :green_heart: | javadoc | 4m 36s | | trunk passed |
| +1 :green_heart: | shadedclient | 139m 27s | | branch has no errors
when building and testing our client artifacts. |
|||| _ Patch Compile Tests _ |
| +1 :green_heart: | mvninstall | 3m 01s | | the patch passed |
| +1 :green_heart: | compile | 2m 35s | | the patch passed |
| +1 :green_heart: | javac | 2m 35s | | the patch passed |
| +1 :green_heart: | blanks | 0m 00s | | The patch has no blanks
issues. |
| +1 :green_heart: | checkstyle | 2m 05s | | the patch passed |
| +1 :green_heart: | mvnsite | 2m 47s | | the patch passed |
| +1 :green_heart: | javadoc | 2m 15s | | the patch passed |
| +1 :green_heart: | shadedclient | 147m 52s | | patch has no errors
when building and testing our client artifacts. |
|||| _ Other Tests _ |
| +1 :green_heart: | asflicense | 5m 07s | | The patch does not
generate ASF License warnings. |
| | | 396m 17s | | |
| Subsystem | Report/Notes |
|----------:|:-------------|
| GITHUB PR | https://github.com/apache/hadoop/pull/6502 |
| Optional Tests | dupname asflicense compile javac javadoc mvninstall
mvnsite unit shadedclient spotbugs checkstyle codespell detsecrets |
| uname | MINGW64_NT-10.0-17763 0a31c1737811 3.4.10-87d57229.x86_64
2024-02-14 20:17 UTC x86_64 Msys |
| Build tool | maven |
| Personality | /c/hadoop/dev-support/bin/hadoop.sh |
| git revision | trunk / a1c48f705b7f6726982b19caf2737a38ed936c68 |
| Default Java | Azul Systems, Inc.-1.8.0_332-b09 |
| Test Results |
https://ci-hadoop.apache.org/job/hadoop-multibranch-windows-10/job/PR-6502/1/testReport/
|
| modules | C: hadoop-hdfs-project/hadoop-hdfs-client U:
hadoop-hdfs-project/hadoop-hdfs-client |
| Console output |
https://ci-hadoop.apache.org/job/hadoop-multibranch-windows-10/job/PR-6502/1/console
|
| versions | git=2.44.0.windows.1 |
| Powered by | Apache Yetus 0.14.0 https://yetus.apache.org |
This message was automatically generated.
> NioInetPeer.close() should close socket connection.
> ---------------------------------------------------
>
> Key: HDFS-17357
> URL: https://issues.apache.org/jira/browse/HDFS-17357
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: liuguanghua
> Assignee: liuguanghua
> Priority: Major
> Labels: pull-request-available
>
> NioInetPeer.close() now do not close socket connection.
> And I found 3w+ connections leakage in datanode . And I found many warn
> message as blew.
> 2024-01-22 15:27:57,500 WARN org.apache.hadoop.hdfs.server.datanode.DataNode:
> hostname:50010:DataXceiverServer
>
> When any Exception is found in DataXceiverServer, it will execute clostStream.
> IOUtils.closeStream(peer) -> Peer.close() -> NioInetPeer.close()
> But NioInetPeer.close() is not invoked with close socket connection. And
> this will lead to connection leakage.
> Other subClass of Peer's close() is implemented with socket.close(). See
> EncryptedPeer, DomainPeer, BasicInetPeer
>
>
> This solution can be reporduced as following:
> (1) Client write data to HDFS
> (2) datanode Xceiver count max to DFS_DATANODE_MAX_RECEIVER_THREADS_KEY ， the
> new Xceiver will fail and throw IOException . And the socket will not release.
> (3) Client crash for that no new data will be added or client.close is
> executed.
> (4) There will be socket connection leakage between datanodes.
>
>
> The connection leakage like this
> dn1
> dn1:57042 dn2:50010 ESTABLISHED
> dn2
> dn2:50010 dn1:57042 ESTABLISHED
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