hue中访问impala报错:Could not connect to node03:21050 原因:impala服务未启动. 解决方法:在3个节点上都启动impala: 主节点node03启动以下三个服务进程 service impala-state-store start service impala-catalog start service impala-server start 从节点启动node01与node02启动impala-server service  impala-ser…

在hue中访问hdfs报错: Cannot access: /. Note: you are a Hue admin but not a HDFS superuser, "hdfs" or part of HDFS supergroup, "supergroup". 原因:hue.ini配置文件中, server_user=root    server_group=root    default_user=root 这3个配置忘记把注释去掉了.…

直接访问controller路径http://localhost:8080/index报错: HTTP Status 500 - Servlet.init() for servlet spring threw exception type Exception report message Servlet.init() for servlet spring threw exception description The server encountered an internal error th…

报错信息:会话状态在此上下文中不可用 protected void Application_Error(object sender, EventArgs e) { //以此判断是否可用Session bool HadInitSession = (sender as HttpApplication).Context.Session == null ? false : true; // ....... }…

1.进入mysql容器中 docker exec -it mysqltest(mysql容器名称) bash 2.进入mysql数据库 mysql -uroot -p 3.输入mysql密码 4.远程连接授权 mysql> GRANT ALL PRIVILEGES ON *.* TO 'root'@'%'WITH GRANT OPTION; mysql>FLUSH PRIVILEGES; 5.更改加密规则 mysql>ALTER USER 'root'@'localhost' IDENT…

[root@5416ec39653b init.d]# /etc/init.d/mysqld start /etc/init.d/mysqld: line 23: /etc/sysconfig/network: No such file or directory 解决办法:touch /etc/sysconfig/network…

docker-compose文件 version: '3' services: envoy: image: envoyproxy/envoy-alpine:v1.15-latest volumes: - ./envoy.yaml:/etc/envoy/envoy.yaml network_mode: "service:mainserver" depends_on: - mainserver mainserver: image: sealloong/envoy-end:latest ne…

hue中使用hue用户(hue admin)访问hdfs报错: Cannot access: /. Note: you are a Hue admin but not a HDFS superuser, "hdfs" or part of HDFS supergroup, "supergroup". 其他症状:oozie editor页面卡住不动 检查过程如下: 1 hdfs配置 hadoop.proxyuser.hue.hosts=*hadoop.proxyuse…

HTTP会经常遇见错误,本文主要和大家分享php中各种http报错的状态码,希望能帮助到大家. HTTP 错误 400 400 请求出错 由于语法格式有误,服务器无法理解此请求.不作修改,客户程序就无法重复此请求. HTTP 错误 401 401.1 未授权:登录失败 此错误表明传输给服务器的证书与登录服务器所需的证书不匹配. 请与 Web 服务器的管理员联系,以确认您是否具有访问所请求资源的权限. 401.2 未授权:服务器的配置导致登录失败 此错误表明传输给服务器的证书与登录服务器所需的证书…

安装docker:curl -sSL https://get.daocloud.io/docker | sh 给权限:usermod -aG docker [current_user] 启动:systemctl start docker 验证(未报错即成功):docker ps 安装docker-composer:curl -L https://get.daocloud.io/docker/compose/releases/download/1.22.0/docker-compose-`unam…