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https://issues.apache.org/jira/browse/HDFS-17577?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17866730#comment-17866730
]
ASF GitHub Bot commented on HDFS-17577:
---------------------------------------
hadoop-yetus commented on PR #6935:
URL: https://github.com/apache/hadoop/pull/6935#issuecomment-2233079168
:broken_heart: **-1 overall**
| Vote | Subsystem | Runtime | Logfile | Comment |
|:----:|----------:|--------:|:--------:|:-------:|
| +0 :ok: | reexec | 0m 19s | | Docker mode activated. |
|||| _ Prechecks _ |
| +1 :green_heart: | dupname | 0m 0s | | No case conflicting files
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| +0 :ok: | codespell | 0m 0s | | codespell was not available. |
| +0 :ok: | detsecrets | 0m 0s | | detect-secrets was not available.
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| +1 :green_heart: | @author | 0m 0s | | The patch does not contain
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| +1 :green_heart: | test4tests | 0m 0s | | The patch appears to
include 1 new or modified test files. |
|||| _ trunk Compile Tests _ |
| +1 :green_heart: | mvninstall | 32m 34s | | trunk passed |
| +1 :green_heart: | compile | 0m 37s | | trunk passed with JDK
Ubuntu-11.0.23+9-post-Ubuntu-1ubuntu120.04.2 |
| +1 :green_heart: | compile | 0m 30s | | trunk passed with JDK
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| +1 :green_heart: | mvnsite | 0m 35s | | trunk passed |
| +1 :green_heart: | javadoc | 0m 34s | | trunk passed with JDK
Ubuntu-11.0.23+9-post-Ubuntu-1ubuntu120.04.2 |
| +1 :green_heart: | javadoc | 0m 28s | | trunk passed with JDK
Private Build-1.8.0_412-8u412-ga-1~20.04.1-b08 |
| +1 :green_heart: | spotbugs | 1m 27s | | trunk passed |
| +1 :green_heart: | shadedclient | 20m 54s | | branch has no errors
when building and testing our client artifacts. |
|||| _ Patch Compile Tests _ |
| +1 :green_heart: | mvninstall | 0m 26s | | the patch passed |
| +1 :green_heart: | compile | 0m 30s | | the patch passed with JDK
Ubuntu-11.0.23+9-post-Ubuntu-1ubuntu120.04.2 |
| +1 :green_heart: | javac | 0m 30s | | the patch passed |
| +1 :green_heart: | compile | 0m 24s | | the patch passed with JDK
Private Build-1.8.0_412-8u412-ga-1~20.04.1-b08 |
| +1 :green_heart: | javac | 0m 24s | | the patch passed |
| +1 :green_heart: | blanks | 0m 0s | | The patch has no blanks
issues. |
| -0 :warning: | checkstyle | 0m 13s |
[/results-checkstyle-hadoop-hdfs-project_hadoop-hdfs-client.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-6935/6/artifact/out/results-checkstyle-hadoop-hdfs-project_hadoop-hdfs-client.txt)
| hadoop-hdfs-project/hadoop-hdfs-client: The patch generated 7 new + 44
unchanged - 0 fixed = 51 total (was 44) |
| +1 :green_heart: | mvnsite | 0m 29s | | the patch passed |
| +1 :green_heart: | javadoc | 0m 23s | | the patch passed with JDK
Ubuntu-11.0.23+9-post-Ubuntu-1ubuntu120.04.2 |
| +1 :green_heart: | javadoc | 0m 23s | | the patch passed with JDK
Private Build-1.8.0_412-8u412-ga-1~20.04.1-b08 |
| +1 :green_heart: | spotbugs | 1m 23s | | the patch passed |
| +1 :green_heart: | shadedclient | 20m 43s | | patch has no errors
when building and testing our client artifacts. |
|||| _ Other Tests _ |
| +1 :green_heart: | unit | 1m 50s | | hadoop-hdfs-client in the patch
passed. |
| -1 :x: | asflicense | 0m 26s |
[/results-asflicense.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-6935/6/artifact/out/results-asflicense.txt)
| The patch generated 1 ASF License warnings. |
| | | 85m 39s | | |
| Subsystem | Report/Notes |
|----------:|:-------------|
| Docker | ClientAPI=1.46 ServerAPI=1.46 base:
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-6935/6/artifact/out/Dockerfile
|
| GITHUB PR | https://github.com/apache/hadoop/pull/6935 |
| Optional Tests | dupname asflicense compile javac javadoc mvninstall
mvnsite unit shadedclient spotbugs checkstyle codespell detsecrets |
| uname | Linux b64ff602f484 5.15.0-106-generic #116-Ubuntu SMP Wed Apr 17
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| Build tool | maven |
| Personality | dev-support/bin/hadoop.sh |
| git revision | trunk / e2a0007a5cdafd7367c4f8f1ea087c9b9fa60702 |
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/usr/lib/jvm/java-8-openjdk-amd64:Private
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| Test Results |
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-6935/6/testReport/ |
| Max. process+thread count | 554 (vs. ulimit of 5500) |
| 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/job/PR-6935/6/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.
> Add Support for CreateFlag.NO_LOCAL_WRITE in File Creation to Manage Disk
> Space and Network Load in Labeled YARN Nodes
> ----------------------------------------------------------------------------------------------------------------------
>
> Key: HDFS-17577
> URL: https://issues.apache.org/jira/browse/HDFS-17577
> Project: Hadoop HDFS
> Issue Type: New Feature
> Components: dfsclient
> Reporter: liang yu
> Priority: Major
> Labels: pull-request-available
> Attachments: 6D939050-0BC4-4B17-A6A3-A1EBBD60338D.png
>
>
> {*}Description{*}: I am currently using Apache Flink to write files into
> Hadoop. The Flink application runs on a labeled YARN queue. During operation,
> it has been observed that the local disks on these labeled nodes get filled
> up quickly, and the network load is significantly high. This issue arises
> because Hadoop prioritizes writing files to the local node first, and the
> number of these labeled nodes is quite limited.
>
> {*}Problem{*}: The current behavior leads to inefficient disk space
> utilization and high network traffic on these few labeled nodes, which could
> potentially affect the performance and reliability of the application. As
> shown in the picture, the host I circled have a average net_bytes_sent speed
> 1.2GB/s while the others are just 50MB/s, this imbalance in network and disk
> space nearly destroyed the whole cluster.
> !6D939050-0BC4-4B17-A6A3-A1EBBD60338D.png|width=901,height=257!
>
> {*}Implementation{*}: The implementation would involve adding an
> configuration _dfs.client.write.no_local_write_ to support the
> {{CreateFlag.NO_LOCAL_WRITE}} during the file creation process in Hadoop's
> file system APIs. This will provide flexibility to applications like Flink
> running in labeled queues to opt for non-local writes when necessary.
>
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