运行时无输出火花NetworkWordCount示例
问题描述：
我是spark的初学者，我试图使用docker运行火花示例NetworkWordCount。但是，没有输出，当我运行示例：运行时无输出火花NetworkWordCount示例
开始通过docker exec -it container_id bash一个新的终端，
[email protected]:/usr/local/spark# nc -lk 9999
a ba c d e f g
a ba c d e f g
a ba c d e f g
a ba c d e f g
a ba c d e f g
a ba c d e f g
a ba c d e f g
a ba c d e f g
a ba c d e f g
a ba c d e f g
a ba c d e f g
a ba c d e f g
a ba c d e f g
a ba c d e f g
a ba c d e f g
a ba c d e f g
a ba c d e f g
a ba c d e f g
a ba c d e f g
再启动另一台终端：
[email protected]:/usr/local/spark# bin/run-example streaming.NetworkWordCount localhost 9999
Using Spark's default log4j profile: org/apache/spark/log4j-defaults.properties
16/05/12 02:55:57 INFO StreamingExamples: Setting log level to [WARN] for streaming example. To override add a custom log4j.properties to the classpath.
16/05/12 02:55:58 WARN NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
...
任何人都可以帮我吗？
答
执行使用下面的命令为我工作。
[[email protected] spark]# ./bin/run-example streaming.NetworkWordCount localhost 9999 --master "local[2]"
你可以验证没有，你确实发送到本地主机9999？ –