[java][spark streamming]java.lang.IllegalArgumentException: requirement failed: No output operations registered, so nothing to execute

Others 2019-10-25 16:13:22 views: null

No output streams registered, so nothing to execute
resolve reason: there is no need to trigger aciton DStream
Workaround: Use one of the following methods trigger:

print()
foreachRDD()
saveAsObjectFiles()
saveAsTextFiles()
saveAsHadoopFiles()

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Origin www.cnblogs.com/fadedlemon/p/11738440.html

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