单机运行Spark Shell遇到的一个低级错误
bin/spark-shell
下载spark-2.1.0-bin-hadoop2.7.tgz，解压缩直接进入spark根目录，然后运行bin/spark-shell即可进入。
但是今天遇到了一个低级错误：
java.net.BindException: Cannot assign requested address: 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.
[root@sk1 spark-2.1.0-bin-hadoop2.7]# bin/spark-shell
Using Spark's default log4j profile: org/apache/spark/log4j-defaults.properties
Setting default log level to "WARN".
To adjust logging level use sc.setLogLevel(newLevel). For SparkR, use setLogLevel(newLevel).
17/04/07 22:33:37 WARN NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
17/04/07 22:33:38 WARN Utils: Service 'sparkDriver' could not bind on port 0. Attempting port 1.
17/04/07 22:33:38 WARN Utils: Service 'sparkDriver' could not bind on port 0. Attempting port 1.
17/04/07 22:33:38 WARN Utils: Service 'sparkDriver' could not bind on port 0. Attempting port 1.
17/04/07 22:33:38 WARN Utils: Service 'sparkDriver' could not bind on port 0. Attempting port 1.
17/04/07 22:33:38 WARN Utils: Service 'sparkDriver' could not bind on port 0. Attempting port 1.
17/04/07 22:33:38 WARN Utils: Service 'sparkDriver' could not bind on port 0. Attempting port 1.
17/04/07 22:33:38 WARN Utils: Service 'sparkDriver' could not bind on port 0. Attempting port 1.
17/04/07 22:33:38 WARN Utils: Service 'sparkDriver' could not bind on port 0. Attempting port 1.
17/04/07 22:33:38 WARN Utils: Service 'sparkDriver' could not bind on port 0. Attempting port 1.
17/04/07 22:33:38 WARN Utils: Service 'sparkDriver' could not bind on port 0. Attempting port 1.
17/04/07 22:33:38 WARN Utils: Service 'sparkDriver' could not bind on port 0. Attempting port 1.
17/04/07 22:33:38 WARN Utils: Service 'sparkDriver' could not bind on port 0. Attempting port 1.
17/04/07 22:33:38 WARN Utils: Service 'sparkDriver' could not bind on port 0. Attempting port 1.
17/04/07 22:33:38 WARN Utils: Service 'sparkDriver' could not bind on port 0. Attempting port 1.
17/04/07 22:33:38 WARN Utils: Service 'sparkDriver' could not bind on port 0. Attempting port 1.
17/04/07 22:33:38 WARN Utils: Service 'sparkDriver' could not bind on port 0. Attempting port 1.
17/04/07 22:33:38 ERROR SparkContext: Error initializing SparkContext.
java.net.BindException: Cannot assign requested address: 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)
java.net.BindException: Cannot assign requested address: 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)
:14: error: not found: value spark
import spark.implicits._
^
:14: error: not found: value spark
import spark.sql
^
Welcome to
____ __
/ __/__ ___ _____/ /__
_\ \/ _ \/ _ `/ __/ '_/
/___/ .__/\_,_/_/ /_/\_\ version 2.1.0
/_/
Using Scala version 2.11.8 (Java HotSpot(TM) 64-Bit Server VM, Java 1.8.0_112)
Type in expressions to have them evaluated.
Type :help for more information.
scala> 问题原因
[root@sk1 ~]# ifconfig
ens32: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.11.138 netmask 255.255.255.0 broadcast 192.168.11.255
inet6 fe80::a8bd:a097:8ca9:d22a prefixlen 64 scopeid 0x20
ether 00:0c:29:c3:3e:9a txqueuelen 1000 (Ethernet)
RX packets 273939 bytes 395373188 (377.0 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 16657 bytes 2472671 (2.3 MiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10
loop txqueuelen 1 (Local Loopback)
RX packets 276 bytes 23980 (23.4 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 276 bytes 23980 (23.4 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
本地IP是192.168.11.138
[root@sk1 ~]# cat /etc/hosts
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
192.168.1.138 sk1很显然，IP配置错了。改正即可
[root@sk1 ~]# vi /etc/hosts
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
192.168.11.138 sk1重新进入
[root@sk1 spark-2.1.0-bin-hadoop2.7]# bin/spark-shell
Using Spark's default log4j profile: org/apache/spark/log4j-defaults.properties
Setting default log level to "WARN".
To adjust logging level use sc.setLogLevel(newLevel). For SparkR, use setLogLevel(newLevel).
17/04/07 22:41:20 WARN NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
17/04/07 22:41:32 WARN ObjectStore: Version information not found in metastore. hive.metastore.schema.verification is not enabled so recording the schema version 1.2.0
17/04/07 22:41:33 WARN ObjectStore: Failed to get database default, returning NoSuchObjectException
17/04/07 22:41:34 WARN ObjectStore: Failed to get database global_temp, returning NoSuchObjectException
Spark context Web UI available at http://192.168.11.138:4040
Spark context available as 'sc' (master = local[*], app id = local-1491619281633).
Spark session available as 'spark'.
Welcome to
____ __
/ __/__ ___ _____/ /__
_\ \/ _ \/ _ `/ __/ '_/
/___/ .__/\_,_/_/ /_/\_\ version 2.1.0
/_/
Using Scala version 2.11.8 (Java HotSpot(TM) 64-Bit Server VM, Java 1.8.0_112)
Type in expressions to have them evaluated.
Type :help for more information.
scala>