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https://issues.apache.org/jira/browse/HADOOP-18957?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17787587#comment-17787587
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ASF GitHub Bot commented on HADOOP-18957:
-----------------------------------------

hadoop-yetus commented on PR #6231:
URL: https://github.com/apache/hadoop/pull/6231#issuecomment-1817828183

   :broken_heart: **-1 overall**
   
   
   
   
   
   
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[/results-checkstyle-root.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-6231/6/artifact/out/results-checkstyle-root.txt)
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[/patch-unit-root.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-6231/6/artifact/out/patch-unit-root.txt)
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   |  |   | 1191m 37s |  |  |
   
   
   | Reason | Tests |
   |-------:|:------|
   | Failed junit tests | 
hadoop.hdfs.server.datanode.fsdataset.impl.TestFsDatasetImpl |
   
   
   | Subsystem | Report/Notes |
   |----------:|:-------------|
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   | GITHUB PR | https://github.com/apache/hadoop/pull/6231 |
   | Optional Tests | dupname asflicense compile javac javadoc mvninstall 
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https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-6231/6/testReport/ |
   | Max. process+thread count | 4317 (vs. ulimit of 5500) |
   | modules | C: hadoop-maven-plugins hadoop-common-project/hadoop-auth 
hadoop-common-project/hadoop-auth-examples hadoop-common-project/hadoop-common 
hadoop-common-project/hadoop-kms hadoop-common-project/hadoop-registry 
hadoop-hdfs-project/hadoop-hdfs-client hadoop-hdfs-project/hadoop-hdfs 
hadoop-hdfs-project/hadoop-hdfs-httpfs hadoop-hdfs-project/hadoop-hdfs-nfs 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-applicationhistoryservice
 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice
 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-web-proxy 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager
 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager
 hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client 
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core 
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-shuffle
 hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app 
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient
 hadoop-tools/hadoop-distcp 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timeline-pluginstorage
 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-timelineservice-documentstore
 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-applications-unmanaged-am-launcher
 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-services/hadoop-yarn-services-core
 
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-nativetask
 hadoop-mapreduce-project/hadoop-mapreduce-examples 
hadoop-tools/hadoop-streaming hadoop-tools/hadoop-archives 
hadoop-tools/hadoop-rumen hadoop-tools/hadoop-gridmix 
hadoop-tools/hadoop-extras hadoop-tools/hadoop-aws hadoop-tools/hadoop-kafka 
hadoop-tools/hadoop-azure hadoop-tools/hadoop-resourceestimator 
hadoop-tools/hadoop-fs2img . U: . |
   | Console output | 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-6231/6/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 |
   
   
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> Use StandardCharsets.UTF_8 constant
> -----------------------------------
>
>                 Key: HADOOP-18957
>                 URL: https://issues.apache.org/jira/browse/HADOOP-18957
>             Project: Hadoop Common
>          Issue Type: Improvement
>            Reporter: PJ Fanning
>            Priority: Major
>              Labels: pull-request-available
>
> * there are some places in the code that have to check for 
> UnsupportedCharsetException when explicitly using the charset name "UTF-8"
> * using StandardCharsets.UTF_8 is more efficient because the Java libs 
> usually have to look up the charsets when you provide it as String param 
> instead
> * also stop using Guava Charsets and use StandardCharsets



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