dianfu commented on a change in pull request #10017: [FLINK-14019][python] add 
support for managing environment and dependencies of Python UDF in Flink Python 
API
URL: https://github.com/apache/flink/pull/10017#discussion_r348870595
 
 

 ##########
 File path: 
flink-python/src/main/java/org/apache/flink/python/AbstractPythonFunctionRunner.java
 ##########
 @@ -103,11 +93,6 @@
         */
        private final StateRequestHandler stateRequestHandler;
 
-       /**
-        * Temporary directories to store the retrieval token.
-        */
-       private final String[] tempDirs;
-
        /**
         * The file of the retrieval token representing the entirety of the 
staged artifacts.
         * Used during requesting the manifest of a job in Beam portability 
framework.
 
 Review comment:
   retrievalToken should also be removed

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