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Posted to yarn-issues@hadoop.apache.org by "tonydoen (Jira)" <ji...@apache.org> on 2022/03/20 10:27:00 UTC

[jira] [Comment Edited] (YARN-4577) Enable aux services to have their own custom classpath/jar file

    [ https://issues.apache.org/jira/browse/YARN-4577?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17509421#comment-17509421 ] 

tonydoen edited comment on YARN-4577 at 3/20/22, 10:26 AM:
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[~Deegue]  In my case I solved it by the same way like [~koodin9] 
{code:java}
  yarn.nodemanager.aux-services = spark_shuffle_x,spark_shuffle_y
  yarn.nodemanager.aux-services.spark_shuffle_x.classpath = /path/to/spark-x-yarn-shuffle.jar:/path/to/spark-x-config
  yarn.nodemanager.aux-services.spark_shuffle_y.classpath = /path/to/spark-y-yarn-shuffle.jar:/path/to/spark-y-config {code}


was (Author: JIRAUSER285351):
[~Deegue]  In my case I solved it by the same way like [~koodin9] 
{code:java}
// code placeholder
  yarn.nodemanager.aux-services = spark_shuffle_x,spark_shuffle_y
  yarn.nodemanager.aux-services.spark_shuffle_x.classpath = /path/to/spark-x-yarn-shuffle.jar:/path/to/spark-x-config
  yarn.nodemanager.aux-services.spark_shuffle_y.classpath = /path/to/spark-y-yarn-shuffle.jar:/path/to/spark-y-config {code}

> Enable aux services to have their own custom classpath/jar file
> ---------------------------------------------------------------
>
>                 Key: YARN-4577
>                 URL: https://issues.apache.org/jira/browse/YARN-4577
>             Project: Hadoop YARN
>          Issue Type: Improvement
>    Affects Versions: 2.8.0
>            Reporter: Xuan Gong
>            Assignee: Xuan Gong
>            Priority: Major
>             Fix For: 2.9.0, 3.0.0-alpha1
>
>         Attachments: YARN-4577.1.patch, YARN-4577.2.patch, YARN-4577.20160119.1.patch, YARN-4577.20160204.patch, YARN-4577.20160428.patch, YARN-4577.20160509.patch, YARN-4577.20160510.patch, YARN-4577.20160511.1.patch, YARN-4577.20160511.patch, YARN-4577.3.patch, YARN-4577.3.rebase.patch, YARN-4577.4.patch, YARN-4577.5.patch, YARN-4577.poc.patch
>
>
> Right now, users have to add their jars to the NM classpath directly, thus put them on the system classloader. But if multiple versions of the plugin are present on the classpath, there is no control over which version actually gets loaded. Or if there are any conflicts between the dependencies introduced by the auxiliary service and the NM itself, they can break the NM, the auxiliary service, or both.
> The solution could be: to instantiate aux services using a classloader that is different from the system classloader.



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