[GitHub] [flink] zeliu commented on pull request #19706: modify the number of parameters

[GitBox <gi...@apache.org>]

zeliu commented on PR #19706:
URL: https://github.com/apache/flink/pull/19706#issuecomment-1124823145

   @MartijnVisser  Thanks for your reply, but if the number of arguments less than 5, it will throw exceptions.
   In org.apache.flink.streaming.kafka.test.KafkaExample ,I provided 4 parameters, and it will report an  #error.
   ```
     if (parameterTool.getNumberOfParameters() < 5) {
               System.out.println(
                       "Missing parameters!\n"
                               + "Usage: Kafka --input-topic <topic> --output-topic <topic> "
                               + "--bootstrap.servers <kafka brokers> "
                               + "--group.id <some id>");
               throw new Exception(
                       "Missing parameters!\n"
                               + "Usage: Kafka --input-topic <topic> --output-topic <topic> "
                               + "--bootstrap.servers <kafka brokers> "
                               + "--group.id <some id>");
           }
   
   ```


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