[jira] [Created] (FLINK-17359) Entropy key is not resolved if flink-s3-fs-hadoop is added as a plugin

[Shang Yuanchun (Jira)]

Prem Santosh created FLINK-17359:
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             Summary: Entropy key is not resolved if flink-s3-fs-hadoop is added as a plugin
                 Key: FLINK-17359
                 URL: https://issues.apache.org/jira/browse/FLINK-17359
             Project: Flink
          Issue Type: Bug
            Reporter: Prem Santosh


Using flink 1.10

I added the flink-s3-fs-hadoop jar in plugins dir but I am seeing the checkpoints paths like {{s3://my_app/__ENTROPY__/app_name-staging/flink/checkpoints/e10f47968ae74934bd833108d2272419/chk-3071}} which means the entropy injection key is not being resolved. After some debugging I found that in the [EntropyInjector|https://github.com/apache/flink/blob/release-1.10.0/flink-core/src/main/java/org/apache/flink/core/fs/EntropyInjector.java#L97] we check if the given fileSystem is of type {{SafetyNetWrapperFileSystem}} and if so we check if the delegate is of type {{EntropyInjectingFileSystem}} but don't check for {{[ClassLoaderFixingFileSystem |https://github.com/apache/flink/blob/release-1.10.0/flink-core/src/main/java/org/apache/flink/core/fs/PluginFileSystemFactory.java#L65]}} which would be the type if S3 file system dependencies are added as a plugin.



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