aljoscha commented on a change in pull request #14137:
URL: https://github.com/apache/flink/pull/14137#discussion_r526833438



##########
File path: 
flink-streaming-java/src/main/java/org/apache/flink/streaming/api/environment/StreamExecutionEnvironment.java
##########
@@ -284,6 +284,21 @@ public StreamExecutionEnvironment setParallelism(int 
parallelism) {
                return this;
        }
 
+       /**
+        * Sets the runtime execution mode for the application (see {@link 
RuntimeExecutionMode}).
+        * This is equivalent to setting the "execution.runtime-mode" in your 
application's
+        * configuration file.

Review comment:
       I think we should add a note here saying that this is not the 
recommended way to do it. Users should keep the job itself free of 
configuration and provided it via the commandline, to stay more flexible. What 
do you think?

##########
File path: 
flink-tests/src/test/java/org/apache/flink/test/streaming/runtime/SinkITCase.java
##########
@@ -235,8 +235,7 @@ public void writerAndGlobalCommitterExecuteInBatchMode() 
throws Exception {
 
        private StreamExecutionEnvironment buildStreamEnv() {
                final StreamExecutionEnvironment env = 
StreamExecutionEnvironment.getExecutionEnvironment();
-               final Configuration config = new Configuration();

Review comment:
       Huh, this was not doing anything, right?




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