Yan Yan created FLINK-10526:
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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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