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https://issues.apache.org/jira/browse/HDFS-16074?focusedWorklogId=611797&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-611797
]
ASF GitHub Bot logged work on HDFS-16074:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 16/Jun/21 08:08
Start Date: 16/Jun/21 08:08
Worklog Time Spent: 10m
Work Description: hadoop-yetus commented on pull request #3107:
URL: https://github.com/apache/hadoop/pull/3107#issuecomment-862148691
:broken_heart: **-1 overall**
| Vote | Subsystem | Runtime | Logfile | Comment |
|:----:|----------:|--------:|:--------:|:-------:|
| +0 :ok: | reexec | 0m 56s | | Docker mode activated. |
|||| _ Prechecks _ |
| +1 :green_heart: | dupname | 0m 0s | | No case conflicting files
found. |
| +0 :ok: | codespell | 0m 1s | | codespell was not available. |
| +1 :green_heart: | @author | 0m 0s | | The patch does not contain
any @author tags. |
| -1 :x: | test4tests | 0m 0s | | 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 | 32m 44s | | trunk passed |
| +1 :green_heart: | compile | 1m 1s | | trunk passed with JDK
Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04 |
| +1 :green_heart: | compile | 0m 50s | | trunk passed with JDK
Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10 |
| +1 :green_heart: | checkstyle | 0m 31s | | trunk passed |
| +1 :green_heart: | mvnsite | 0m 56s | | trunk passed |
| +1 :green_heart: | javadoc | 0m 43s | | trunk passed with JDK
Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04 |
| +1 :green_heart: | javadoc | 0m 38s | | trunk passed with JDK
Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10 |
| +1 :green_heart: | spotbugs | 2m 34s | | trunk passed |
| +1 :green_heart: | shadedclient | 18m 6s | | branch has no errors
when building and testing our client artifacts. |
|||| _ Patch Compile Tests _ |
| +1 :green_heart: | mvninstall | 0m 51s | | the patch passed |
| +1 :green_heart: | compile | 1m 0s | | the patch passed with JDK
Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04 |
| +1 :green_heart: | javac | 1m 0s | | the patch passed |
| +1 :green_heart: | compile | 0m 45s | | the patch passed with JDK
Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10 |
| +1 :green_heart: | javac | 0m 45s | | the patch passed |
| +1 :green_heart: | blanks | 0m 0s | | The patch has no blanks
issues. |
| +1 :green_heart: | checkstyle | 0m 20s | | the patch passed |
| +1 :green_heart: | mvnsite | 1m 0s | | the patch passed |
| +1 :green_heart: | javadoc | 0m 36s | | the patch passed with JDK
Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04 |
| +1 :green_heart: | javadoc | 0m 30s | | the patch passed with JDK
Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10 |
| +1 :green_heart: | spotbugs | 2m 28s | | the patch passed |
| +1 :green_heart: | shadedclient | 15m 16s | | patch has no errors
when building and testing our client artifacts. |
|||| _ Other Tests _ |
| +1 :green_heart: | unit | 2m 18s | | hadoop-hdfs-client in the patch
passed. |
| +1 :green_heart: | asflicense | 0m 33s | | The patch does not
generate ASF License warnings. |
| | | 83m 54s | | |
| Subsystem | Report/Notes |
|----------:|:-------------|
| Docker | ClientAPI=1.41 ServerAPI=1.41 base:
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3107/1/artifact/out/Dockerfile
|
| GITHUB PR | https://github.com/apache/hadoop/pull/3107 |
| Optional Tests | dupname asflicense compile javac javadoc mvninstall
mvnsite unit shadedclient spotbugs checkstyle codespell |
| uname | Linux c1a69f2c4c91 4.15.0-65-generic #74-Ubuntu SMP Tue Sep 17
17:06:04 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | dev-support/bin/hadoop.sh |
| git revision | trunk / c8ba1a525edb66f21ce8849f21399b9e166c8e6e |
| Default Java | Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10 |
| Multi-JDK versions |
/usr/lib/jvm/java-11-openjdk-amd64:Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04
/usr/lib/jvm/java-8-openjdk-amd64:Private
Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10 |
| Test Results |
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3107/1/testReport/ |
| Max. process+thread count | 552 (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-3107/1/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: 611797)
Time Spent: 0.5h (was: 20m)
> Remove an expensive debug string concatenation
> ----------------------------------------------
>
> Key: HDFS-16074
> URL: https://issues.apache.org/jira/browse/HDFS-16074
> Project: Hadoop HDFS
> Issue Type: Improvement
> Affects Versions: 3.0.0-alpha1
> Reporter: Wei-Chiu Chuang
> Assignee: Wei-Chiu Chuang
> Priority: Major
> Labels: pull-request-available
> Attachments: Screen Shot 2021-06-16 at 2.32.29 PM.png
>
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> Running a YCSB load query, found that we do an expensive string concatenation
> on the write path in DFSOutputStream.writeChunkPrepare().
> Nearly 25% of HDFS client write CPU time is spent here. It is not necessary
> because it's supposed to be a debug message. So let's remove it.
> {code}
> if (currentPacket == null) {
> currentPacket = createPacket(packetSize, chunksPerPacket, getStreamer()
> .getBytesCurBlock(), getStreamer().getAndIncCurrentSeqno(), false);
> DFSClient.LOG.debug("WriteChunk allocating new packet seqno={},"
> + " src={}, packetSize={}, chunksPerPacket={},
> bytesCurBlock={}",
> currentPacket.getSeqno(), src, packetSize, chunksPerPacket,
> getStreamer().getBytesCurBlock() + ", " + this); <---- here
> }
> {code}
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