@Override
  public boolean isHA() {
    return false;
  }
Specifies whether the function is eligible for re-execution (in case of failure).

@return whether the function is eligible for re-execution.

@see RegionFunctionContext#isPossibleDuplicate()
@since GemFire 6.5
geode-assembly/geode-assembly-test/src/main/java/org/apache/geode/rest/internal/web/controllers/NoArgumentFunction.java