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https://issues.apache.org/jira/browse/HADOOP-13144?focusedWorklogId=789845&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-789845
 ]

ASF GitHub Bot logged work on HADOOP-13144:
-------------------------------------------

                Author: ASF GitHub Bot
            Created on: 12/Jul/22 04:31
            Start Date: 12/Jul/22 04:31
    Worklog Time Spent: 10m 
      Work Description: hadoop-yetus commented on PR #4542:
URL: https://github.com/apache/hadoop/pull/4542#issuecomment-1181301908

   :confetti_ball: **+1 overall**
   
   
   
   
   
   
   | Vote | Subsystem | Runtime |  Logfile | Comment |
   |:----:|----------:|--------:|:--------:|:-------:|
   | +0 :ok: |  reexec  |   0m 42s |  |  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 2 new or modified test files.  |
   |||| _ trunk Compile Tests _ |
   | +1 :green_heart: |  mvninstall  |  37m 44s |  |  trunk passed  |
   | +1 :green_heart: |  compile  |  23m  3s |  |  trunk passed with JDK 
Private Build-11.0.15+10-Ubuntu-0ubuntu0.20.04.1  |
   | +1 :green_heart: |  compile  |  20m 36s |  |  trunk passed with JDK 
Private Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07  |
   | +1 :green_heart: |  checkstyle  |   1m 48s |  |  trunk passed  |
   | +1 :green_heart: |  mvnsite  |   2m 12s |  |  trunk passed  |
   | +1 :green_heart: |  javadoc  |   1m 50s |  |  trunk passed with JDK 
Private Build-11.0.15+10-Ubuntu-0ubuntu0.20.04.1  |
   | +1 :green_heart: |  javadoc  |   1m 22s |  |  trunk passed with JDK 
Private Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07  |
   | +1 :green_heart: |  spotbugs  |   3m 14s |  |  trunk passed  |
   | +1 :green_heart: |  shadedclient  |  23m 47s |  |  branch has no errors 
when building and testing our client artifacts.  |
   |||| _ Patch Compile Tests _ |
   | +1 :green_heart: |  mvninstall  |   1m  7s |  |  the patch passed  |
   | +1 :green_heart: |  compile  |  22m 16s |  |  the patch passed with JDK 
Private Build-11.0.15+10-Ubuntu-0ubuntu0.20.04.1  |
   | +1 :green_heart: |  javac  |  22m 16s |  |  the patch passed  |
   | +1 :green_heart: |  compile  |  20m 35s |  |  the patch passed with JDK 
Private Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07  |
   | +1 :green_heart: |  javac  |  20m 35s |  |  the patch passed  |
   | +1 :green_heart: |  blanks  |   0m  0s |  |  The patch has no blanks 
issues.  |
   | +1 :green_heart: |  checkstyle  |   1m 42s |  |  the patch passed  |
   | +1 :green_heart: |  mvnsite  |   2m 10s |  |  the patch passed  |
   | +1 :green_heart: |  javadoc  |   1m 27s |  |  the patch passed with JDK 
Private Build-11.0.15+10-Ubuntu-0ubuntu0.20.04.1  |
   | +1 :green_heart: |  javadoc  |   1m 21s |  |  the patch passed with JDK 
Private Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07  |
   | +1 :green_heart: |  spotbugs  |   3m  8s |  |  the patch passed  |
   | +1 :green_heart: |  shadedclient  |  23m 34s |  |  patch has no errors 
when building and testing our client artifacts.  |
   |||| _ Other Tests _ |
   | +1 :green_heart: |  unit  |  18m 45s |  |  hadoop-common in the patch 
passed.  |
   | +1 :green_heart: |  asflicense  |   1m 38s |  |  The patch does not 
generate ASF License warnings.  |
   |  |   | 215m 29s |  |  |
   
   
   | Subsystem | Report/Notes |
   |----------:|:-------------|
   | Docker | ClientAPI=1.41 ServerAPI=1.41 base: 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4542/3/artifact/out/Dockerfile
 |
   | GITHUB PR | https://github.com/apache/hadoop/pull/4542 |
   | Optional Tests | dupname asflicense compile javac javadoc mvninstall 
mvnsite unit shadedclient spotbugs checkstyle codespell detsecrets |
   | uname | Linux a3ed3d06b83f 4.15.0-112-generic #113-Ubuntu SMP Thu Jul 9 
23:41:39 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux |
   | Build tool | maven |
   | Personality | dev-support/bin/hadoop.sh |
   | git revision | trunk / 13fd2adeb338be56004c56a9e23c9406c0abe053 |
   | Default Java | Private Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07 |
   | Multi-JDK versions | /usr/lib/jvm/java-11-openjdk-amd64:Private 
Build-11.0.15+10-Ubuntu-0ubuntu0.20.04.1 
/usr/lib/jvm/java-8-openjdk-amd64:Private 
Build-1.8.0_312-8u312-b07-0ubuntu1~20.04-b07 |
   |  Test Results | 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4542/3/testReport/ |
   | Max. process+thread count | 2773 (vs. ulimit of 5500) |
   | modules | C: hadoop-common-project/hadoop-common U: 
hadoop-common-project/hadoop-common |
   | Console output | 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-4542/3/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.
   
   




Issue Time Tracking
-------------------

    Worklog Id:     (was: 789845)
    Time Spent: 1h 10m  (was: 1h)

> Enhancing IPC client throughput via multiple connections per user
> -----------------------------------------------------------------
>
>                 Key: HADOOP-13144
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13144
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: ipc
>            Reporter: Jason Kace
>            Assignee: Íñigo Goiri
>            Priority: Minor
>              Labels: pull-request-available
>         Attachments: HADOOP-13144-performance.patch, HADOOP-13144.000.patch, 
> HADOOP-13144.001.patch, HADOOP-13144.002.patch, HADOOP-13144.003.patch, 
> HADOOP-13144_overload_enhancement.patch
>
>          Time Spent: 1h 10m
>  Remaining Estimate: 0h
>
> The generic IPC client ({{org.apache.hadoop.ipc.Client}}) utilizes a single 
> connection thread for each {{ConnectionId}}.  The {{ConnectionId}} is unique 
> to the connection's remote address, ticket and protocol.  Each ConnectionId 
> is 1:1 mapped to a connection thread by the client via a map cache.
> The result is to serialize all IPC read/write activity through a single 
> thread for a each user/ticket + address.  If a single user makes repeated 
> calls (1k-100k/sec) to the same destination, the IPC client becomes a 
> bottleneck.



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