报错:
Exception in thread "main" java.lang.IllegalArgumentException: requirement failed: No output operations registered, so nothing to execute
原因:在start后,没有触发spark的流数据动作,任意一个触发DStream的动作即可解决该问题,比如JavaReceiverInputDStream的:
print()
报错:
Exception in thread "main" java.lang.IllegalArgumentException: requirement failed: No output operations registered, so nothing to execute
原因:在start后,没有触发spark的流数据动作,任意一个触发DStream的动作即可解决该问题,比如JavaReceiverInputDStream的:
print()
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