本地运行spark报错

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

看起来一直在尝试绑定端口0失败，默认起始端口应该是4040，设置spark.driver.port=4040还是报相同的错，后来发现增加环境变量即可

SPARK_LOCAL_IP=127.0.0.1