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https://issues.apache.org/jira/browse/HADOOP-17804?focusedWorklogId=648032&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-648032
 ]

ASF GitHub Bot logged work on HADOOP-17804:
-------------------------------------------

                Author: ASF GitHub Bot
            Created on: 08/Sep/21 15:34
            Start Date: 08/Sep/21 15:34
    Worklog Time Spent: 10m 
      Work Description: hadoop-yetus commented on pull request #3369:
URL: https://github.com/apache/hadoop/pull/3369#issuecomment-915346067


   :broken_heart: **-1 overall**
   
   
   
   
   
   
   | Vote | Subsystem | Runtime |  Logfile | Comment |
   |:----:|----------:|--------:|:--------:|:-------:|
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   |||| _ Prechecks _ |
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   | +0 :ok: |  codespell  |   0m  1s |  |  codespell 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  |  36m 25s |  |  trunk passed  |
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   | +1 :green_heart: |  mvnsite  |   1m 35s |  |  trunk passed  |
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Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04  |
   | +1 :green_heart: |  javadoc  |   1m 38s |  |  trunk passed with JDK 
Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10  |
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   | +1 :green_heart: |  shadedclient  |  15m 58s |  |  branch has no errors 
when building and testing our client artifacts.  |
   |||| _ Patch Compile Tests _ |
   | +1 :green_heart: |  mvninstall  |   0m 55s |  |  the patch passed  |
   | +1 :green_heart: |  compile  |  27m 24s |  |  the patch passed with JDK 
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   | +1 :green_heart: |  compile  |  23m 37s |  |  the patch passed with JDK 
Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10  |
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issues.  |
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Ubuntu-11.0.11+9-Ubuntu-0ubuntu2.20.04  |
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Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10  |
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   | +1 :green_heart: |  shadedclient  |  21m 33s |  |  patch has no errors 
when building and testing our client artifacts.  |
   |||| _ Other Tests _ |
   | -1 :x: |  unit  |  19m  4s | 
[/patch-unit-hadoop-common-project_hadoop-common.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3369/6/artifact/out/patch-unit-hadoop-common-project_hadoop-common.txt)
 |  hadoop-common in the patch passed.  |
   | +1 :green_heart: |  asflicense  |   0m 55s |  |  The patch does not 
generate ASF License warnings.  |
   |  |   | 216m 55s |  |  |
   
   
   | Reason | Tests |
   |-------:|:------|
   | Failed junit tests | hadoop.metrics2.sink.TestPrometheusMetricsSink |
   
   
   | Subsystem | Report/Notes |
   |----------:|:-------------|
   | Docker | ClientAPI=1.41 ServerAPI=1.41 base: 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3369/6/artifact/out/Dockerfile
 |
   | GITHUB PR | https://github.com/apache/hadoop/pull/3369 |
   | Optional Tests | dupname asflicense compile javac javadoc mvninstall 
mvnsite unit shadedclient spotbugs checkstyle codespell |
   | uname | Linux 27b7259c73a8 4.15.0-58-generic #64-Ubuntu SMP Tue Aug 6 
11:12:41 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux |
   | Build tool | maven |
   | Personality | dev-support/bin/hadoop.sh |
   | git revision | trunk / 90e88772fa5a90267cbc86b1b8d5398aa537ec6a |
   | Default Java | Private Build-1.8.0_292-8u292-b10-0ubuntu1~20.04-b10 |
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/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-3369/6/testReport/ |
   | Max. process+thread count | 2330 (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-3369/6/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 |
   
   
   This message was automatically generated.
   
   


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

    Worklog Id:     (was: 648032)
    Time Spent: 2h 20m  (was: 2h 10m)

> Prometheus metrics only include the last set of labels
> ------------------------------------------------------
>
>                 Key: HADOOP-17804
>                 URL: https://issues.apache.org/jira/browse/HADOOP-17804
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: common
>    Affects Versions: 3.3.1
>            Reporter: Adam Binford
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 2h 20m
>  Remaining Estimate: 0h
>
> A prometheus endpoint was added in 
> https://issues.apache.org/jira/browse/HADOOP-16398, but the logic that puts 
> them into a map based on the "key" incorrectly hides any metrics with the 
> same key but different labels. The relevant code is here: 
> [https://github.com/apache/hadoop/blob/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/metrics2/sink/PrometheusMetricsSink.java#L55|https://github.com/apache/hadoop/blob/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/metrics2/sink/PrometheusMetricsSink.java#L55.]
> The labels/tags need to be taken into account, as different tags mean 
> different metrics. For example, I came across this while trying to scrape 
> metrics for all the queues in our scheduler. Only the last queue is included 
> because all the metrics have the same "key" but a different "queue" label/tag.



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