本地運行spark報錯
18/12/18 12:56:55 WARN Utils: Service 'sparkDriver' could not bind on port 0. Attempting port 1.
18/12/18 12:56:55 WARN Utils: Service 'sparkDriver' could not bind on port 0. Attempting port 1.
18/12/18 12:56:55 WARN Utils: Service 'sparkDriver' could not bind on port 0. Attempting port 1.
18/12/18 12:56:55 WARN Utils: Service 'sparkDriver' could not bind on port 0. Attempting port 1.
18/12/18 12:56:55 WARN Utils: Service 'sparkDriver' could not bind on port 0. Attempting port 1.
18/12/18 12:56:55 WARN Utils: Service 'sparkDriver' could not bind on port 0. Attempting port 1.
18/12/18 12:56:55 WARN Utils: Service 'sparkDriver' could not bind on port 0. Attempting port 1.
18/12/18 12:56:55 WARN Utils: Service 'sparkDriver' could not bind on port 0. Attempting port 1.
18/12/18 12:56:55 WARN Utils: Service 'sparkDriver' could not bind on port 0. Attempting port 1.
18/12/18 12:56:55 WARN Utils: Service 'sparkDriver' could not bind on port 0. Attempting port 1.
18/12/18 12:56:55 WARN Utils: Service 'sparkDriver' could not bind on port 0. Attempting port 1.
18/12/18 12:56:55 WARN Utils: Service 'sparkDriver' could not bind on port 0. Attempting port 1.
18/12/18 12:56:55 WARN Utils: Service 'sparkDriver' could not bind on port 0. Attempting port 1.
18/12/18 12:56:55 WARN Utils: Service 'sparkDriver' could not bind on port 0. Attempting port 1.
18/12/18 12:56:55 WARN Utils: Service 'sparkDriver' could not bind on port 0. Attempting port 1.
18/12/18 12:56:55 WARN Utils: Service 'sparkDriver' could not bind on port 0. Attempting port 1.
18/12/18 12:56:55 ERROR SparkContext: Error initializing SparkContext.
java.net.BindException: Cannot assign requested address: bind: Service 'sparkDriver' failed after 16 retries (starting from 0)! Consider explicitly setting the appropriate port for the service 'sparkDriver' (for example spark.ui.port for SparkUI) to an available port or increasing spark.port.maxRetries.
at sun.nio.ch.Net.bind0(Native Method)
at sun.nio.ch.Net.bind(Net.java:433)
at sun.nio.ch.Net.bind(Net.java:425)
at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:223)
at io.netty.channel.socket.nio.NioServerSocketChannel.doBind(NioServerSocketChannel.java:127)
at io.netty.channel.AbstractChannel$AbstractUnsafe.bind(AbstractChannel.java:501)
at io.netty.channel.DefaultChannelPipeline$HeadContext.bind(DefaultChannelPipeline.java:1218)
at io.netty.channel.AbstractChannelHandlerContext.invokeBind(AbstractChannelHandlerContext.java:506)
at io.netty.channel.AbstractChannelHandlerContext.bind(AbstractChannelHandlerContext.java:491)
at io.netty.channel.DefaultChannelPipeline.bind(DefaultChannelPipeline.java:965)
at io.netty.channel.AbstractChannel.bind(AbstractChannel.java:210)
at io.netty.bootstrap.AbstractBootstrap$2.run(AbstractBootstrap.java:353)
at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:408)
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:455)
at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:140)
at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:144)
at java.lang.Thread.run(Thread.java:745)
18/12/18 12:56:55 INFO SparkContext: Successfully stopped SparkContext
看起來一直在嘗試綁定端口0失敗，默認起始端口應該是4040，設置spark.driver.port=4040還是報相同的錯，后來發現增加環境變量即可
SPARK_LOCAL_IP=127.0.0.1