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Posted to dev@flink.apache.org by "Yan Yan (JIRA)" <ji...@apache.org> on 2018/10/10 23:41:00 UTC

[jira] [Created] (FLINK-10526) Hadoop FileSystem not initialized properly on Yarn

Yan Yan created FLINK-10526:
-------------------------------

             Summary: Hadoop FileSystem not initialized properly on Yarn
                 Key: FLINK-10526
                 URL: https://issues.apache.org/jira/browse/FLINK-10526
             Project: Flink
          Issue Type: Bug
          Components: YARN
    Affects Versions: 1.4.0
            Reporter: Yan Yan


When we were bumping Flink from 1.3.2 to 1.4.0, we noticed the HadoopFileSystem no longer reads flinkConfig. 

This prevents users to pass in custom HDFS configuration (e.g. core-site.xml) via _fs.hdfs.hadoopconf_.

Specially it is due to the cached _HadoopFsFactory_ is initialized with an dummy Configuration ([[code|https://github.com/apache/flink/blob/master/flink-core/src/main/java/org/apache/flink/core/fs/FileSystem.java#L387]|https://github.com/apache/flink/blob/master/flink-core/src/main/java/org/apache/flink/core/fs/FileSystem.java#L387]), which prevents future _flinkConfig_ getting passed in ([[code|https://github.com/apache/flink/blob/master/flink-filesystems/flink-hadoop-fs/src/main/java/org/apache/flink/runtime/fs/hdfs/HadoopFsFactory.java#L84]|https://github.com/apache/flink/blob/master/flink-filesystems/flink-hadoop-fs/src/main/java/org/apache/flink/runtime/fs/hdfs/HadoopFsFactory.java#L84]).

We have verified by calling _FileSystem.initialize(flinkConfig)_ explicitly in _YarnApplicationMasterRunner.run_ solve the issue.

 



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