INFO ipc.Client: Retrying connect to server: hadoop/192.168.73.100:9000. Already tried 0 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1 SECONDS) INFO ipc.Client: Retrying connect to server: hadoop/192.168.73.1…
hadoop使用bin/start_all.sh命令之后,使用jps发现datanode无法启动 This problem comes when Datanode daemon on the system does not start.check the started daemons using "jps" command. If it in not started,start Datanode daemon manually by using the command:bin/had…
运行 时候爆出这个错 Exception in thread "main" java.io.IOException: java.net.ConnectException: Call From hadoop.slave01/192.168.121.133 to 0.0.0.0:10020 failed on connection exception: java.net.ConnectException: Connection refused; For more details see:…
今天在测试MySQL的连接时候,发现连接不通过,并报错ERROR 2003 (HY000): Can't connect to mysql server on '192.168.10.210' (111) 测试代码: require 'mysql2' client = Mysql2::Client.new(:host=>"192.168.10.210",:username=>'root',:password=>"root") puts result…
今天在测试MySQL的连接时候,发现连接不通过,并报错ERROR 2003 (HY000): Can't connect to mysql server on '192.168.10.210' (111) 测试代码: require 'mysql2' client = Mysql2::Client.new(:host=>"192.168.10.210",:username=>'root',:password=>"root") puts result…
安装bugfree后,访问报错:CDbConnection 无法开启数据库连线: SQLSTATE[HY000] [2003] Can't connect to MySQL server on '192.168.0.99' (4) 现象:虚机的ip是192.168.1.188,但是192.168.1.188/bugfree去访问的时候,提示连接不到192.168.0.99. 尝试解决: ip的配置是在程序的配置文件里配置的 1.可能是mysql没启动,查看mysql的运行情况:service m…
centos7下面操作mysql添加,授权,删除用户 添加用户 以root用户登录数据库,运行以下命令: create user test identified by '; 上面创建了用户test,密码是123456789.我们在mysql.user表里面可以看到新增的用户信息 +------+----------------+-------------------------------------------+ | user | host | password | +------+-----…
早上打开浏览器准备登陆某个系统,发现Error 404--Not Found,有点奇怪,这个服务器应该没人用了才对,然后到weblogic后台去看日志,报如下错误: "Could not create pool connection. The DBMS driver exception was: null, message from server: "Host '192.168.XX.XX' is blocked because of many connection errors;…
在虚拟机上(CentOS 6.7)本机连接自己的redis [root@localhost bin]# ./redis-cli -h Could not connect to Redis at : Connection refused Could not connect to Redis at : Connection refused not connected> 查看配置文件,发现bind是写成: bind 127.0.0.1 修改配置为 bind 127.0.0.1 192.168.0.12…
系统或者程序连接数据报错 null, message from server: "Host '192.168.6.68' is blocked because of many connection errors; unblock with 'mysqladmin flush-hosts'" 原因:同一个ip在短时间内产生太多(超过mysql数据库max_connection_errors的最大值)中断的数据库连接而导致的阻塞 使用客户端连接数据库…
2018-01-09 09:47:38,297 FATAL org.apache.hadoop.hdfs.server.datanode.DataNode: Initialization failed for Block pool <registering> (Datanode Uuid unassigned) service to controller/192.168.1.183:9000. Exiting. java.io.IOException: Incompatible cluster…
配置Redis主从时,修改完从节点配置文件,然后报错 [root@Rich七哥-0-50 redis]# /opt/redis/redis-cli -h 192.168.0.50 Could not connect to Redis at 192.168.0.50:6379: Connection refused not connected> quit 这是因为需要重新加载配置文件 执行 redis-server /etc/redis.conf 1430:C 30 Oct 2019 09:46:…
Error, some other host already uses address 192.168.0.202错误解决方法 今天配置虚拟机网卡的时候遇到错误:Error, some other host already uses address 192.168.0.202 查了很多方法,比如:编辑 /etc/sysconfig/network-scripts/ifup-eth 后来发现局域网里面有其他机器使用了192.168.0.202 这个IP,最后把虚拟机IP改为一个局域网内没人使用的I…
谷歌了一下之后,原来是在mysql的my.cnf中有下面一段代码: # Instead of skip-networking the default is now to listen only on # localhost which is more compatible and is not less secure. bind-address = 127.0.0.1 #这里默认监听本地localhost 如果要让mysql监听到其他的地址,可以将bind-address = 127.0.0.1…
报错信息如下 -- ::, INFO [main]: retry.RetryInvocationHandler (RetryInvocationHandler.java:invoke()) - Exception after fail over attempts. Trying to fail over after sleeping for 5584ms. org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.ipc.StandbyExc…
