[ 
https://issues.apache.org/jira/browse/FLINK-31366?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17697825#comment-17697825
 ] 

Hangxiang Yu commented on FLINK-31366:
--------------------------------------

[~martijnvisser] Thanks for the feedback.
I just packaged two plugins and put them into the plugin directory. 
When I started the job, the exception was thrown.

Maybe I missed something. Are there any misunderstaning in my anlysis ?

> Exception is thrown when s3a and s3p are used together
> ------------------------------------------------------
>
>                 Key: FLINK-31366
>                 URL: https://issues.apache.org/jira/browse/FLINK-31366
>             Project: Flink
>          Issue Type: Bug
>          Components: FileSystems
>            Reporter: Hangxiang Yu
>            Assignee: Hangxiang Yu
>            Priority: Major
>              Labels: pull-request-available
>
> h3. Exception
> When s3a and s3p plugins exist at the same time, an exception will be thrown 
> as below:
> {code:java}
> Caused by:java.lang.NoSuchMethodError: 
> org.apache.flink.fs.s3.common.AbstractS3FileSystemFactory.<init> 
> (Ljava/lang/String;Lorg/apache/flink/fs/s3presto/common/HadoopConfigLoader;)
> {code}
> h3. Why
> In the construction method of AbstractS3FileSystemFactory, s3a shades 
> HadoopConfigLoader into 
> org.apache.flink.fs.s3hadoop.common.HadoopConfigLoader, and s3p shades 
> HadoopConfigLoader into org. 
> apache.flink.fs.s3presto.common.HadoopConfigLoader when package.
> (see shade-plugin)
>  
> But the AbstractS3FileSystemFactory class will only be loaded once when 
> loading even if there are two plugins.
> So it may first uses s3a plugin to load AbstractS3FileSystemFactory, and the 
> construction method is loaded into AbstractS3FileSystemFactory(String name, 
> org.apache. flink.fs.s3hadoop.common.HadoopConfigLoader hadoopConfigLoader), 
> at this time s3p will be abnormal when it is constructed.



--
This message was sent by Atlassian Jira
(v8.20.10#820010)

Reply via email to