Github user zentol commented on a diff in the pull request:

    https://github.com/apache/flink/pull/5535#discussion_r169370975
  
    --- Diff: 
flink-tests/src/test/java/org/apache/flink/test/misc/MiscellaneousIssuesITCase.java
 ---
    @@ -134,7 +106,8 @@ public void testAccumulatorsAfterNoOp() {
                final String accName = "test_accumulator";
     
                try {
    -                   env.setParallelism(6);
    +                   ExecutionEnvironment env = 
ExecutionEnvironment.getExecutionEnvironment();
    +                   env.setParallelism(4);
    --- End diff --
    
    yeah, that's probably the better option.


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