先看解决方案,再看唠嗑,唠嗑可以忽略. 解决方案: 使用start yarn.sh启动yarn就可以了. 唠嗑: 今天学习Spark基于Yarn部署.然后总以为Yarn是让Spark启动的,提交程序的时候Yarn就会启动~!于是乎我就只开启了Spark程序,没开启Yarn,然后执行提交 ./spark-submit --class org.apache.spark.examples.JavaSparkPi \ --master yarn \ --deploy-mode cluster \ --d…

1:安装好hive,准备启动的时候出现下面的错误(由于hive是基于Hadoop的,所以必须先将你的集群启动起来,我就是没有启动集群,直接启动hive导致的错误): [root@master bin]# ./hive Logging initialized -bin/lib/hive-common-.jar!/hive-log4j.properties Exception failed on connection exception: java.net.ConnectException: Con…

1:练习spark的时候,操作大概如我读取hdfs上面的文件,然后spark懒加载以后,我读取详细信息出现如下所示的错误,错误虽然不大,我感觉有必要记录一下,因为错误的起因是对命令的不熟悉造成的,错误如下所示: scala> text.collect java.net.ConnectException: Call From slaver1/ failed on connection exception: java.net.ConnectException: Connection refused;…

场景:  预发环境中,同事已经搭建了一套hadoop集群,由于版本与所需不符,所以需要替换版本 问题描述: 在配置文件都准确的情况下,启动hadoop,出现以下报错: 启动之前初始化:   初始化目录跟配置文件目录不一致 hdfs  namenode -format [root@hdoop2 hadoop-2.8.5]# hadoop dfs -ls /DEPRECATED: Use of this script to execute hdfs command is deprecated.Ins…

192.168.11.12:8485: Call From hu-hadoop1/192.168.11.11 to hu-hadoop2:8485 failed on connection exception: java.net.ConnectException: Connection refused; For more details see:  http://wiki.apache.org/hadoop/ConnectionRefused at org.apache.hadoop.hdfs.…

hadoop集群搭建了ha,初次启动正常,最近几天启动时偶尔发现,namenode1节点启动后一段时间(大约10几秒-半分钟左右),namenode1上namenode进程停掉,查看日志: -- ::, INFO org.apache.hadoop.ipc.Client: Retrying connect to server: slave1/. Already tried , sleepTime= MILLISECONDS) -- ::, WARN org.apache.hadoop.hdfs.…

Bad connection to FS. command aborted. exception: Call to chaoren/192.168.80.100:9000 failed on connection exception: java.net.ConnectException: Connection refused 错误解决方法: 1.先将/usr/local/hadoop/tmp/dfs文件夹整个删除掉(cd /usr/local/hadoop/tmp rm -rf dfs) 2.再…

新装一个mysql,尝试用通过navicat连接mysql服务器的时候提示: SQL Error (1130): Host '192.168.1.100' is not allowed to connect to this MySQL server 说明所连接的用户帐号没有远程连接的权限,只能在本机(localhost)登录.需更改 mysql 数据库里的 user表里的 host项把localhost改称% 首先按下面的步骤登录Mysql服务器 登录mysql需要切换到dos下的mysql的b…

ssh那些都已经搞了,跑一个书上的例子出现了Connection Refused异常,如下: 12/04/09 01:00:54 INFO ipc.Client: Retrying connect to server: localhost/127.0.0.1:8020. Already tried 0 time(s).12/04/09 01:00:56 INFO ipc.Client: Retrying connect to server: localhost/127.0.0.1:8020. A…

Call to localhost/127.0.0.1:9000 failed on connection exception:java.net.ConnectException的解决方案 作者:凯鲁嘎吉 - 博客园 http://www.cnblogs.com/kailugaji/ 在启动hadoop时,出现了如下错误: Call From java.net.UnknownHostException: ubuntu-larntin: ubuntu-larntin to localhost:90…