1.运行SparkStreaming的NetworkWordCount实例出错:Error connecting to localhost:9999 java.net.ConnectException: Connection refused 解决办法: 如果代码没有问题,那么肯定是没有开启9999号端口。
一、背景 首先按照Spark的官方文档来运行此实例,具体方法参见这里,当运行命令$ nc -lk 9999开启端口后,再运行命令$ ./bin/run-example streaming.NetworkWordCount localhost 9999,却出现错误“Error connecting to localhost:9999 java.net.ConnectException: Connection refused ”,也就是9999端口无法连接。 二、解决办...
I/O error on POST request for “http://localhost:9999/api/v2/spans“: connect timed out; nested except,程序员大本营,技术文章内容聚合第一站。
After Enabling RBAC in JBoss EAP 6.4, unable to Define a role-mapping and getting the following error : Raw [standalone@localhost:9999 /] /core-service=management/access=authorization/role-mapping=SuperUser/i nclude=JBoss_Group:add(name=JBoss_Group,realm=ldap_security_realm,type=GROUP) Failed ...
springboot 启动后通过网页访问出现如下错误:http://localhost:9999/user/ Whitelabel Error Page This application has no explicit mapping for /error, so you are seeing this as a fallback. Fri Jan 04 11:16:27 CST 2019 There was an unexpected error (type=Not Found, status=404). ...
Configuration system failed to initialize --- Help Please Connect network camera with VB Connect to database using Connectionstring in App.config VB.NET Connect to wifi using vb.net Connect with IP Camera connecting VB.net application to sql server remotely Connection string for Office 2019 Connec...
❯ ./node --debug-brk --inspect=9999 & (sleep 1 ; curl http://localhost:9999 ) [1] 26117 Debugger listening on port 9999. To start debugging, open the following URL in Chrome: chrome-devtools://devtools/remote/serve_file/@521e5b7e2b7cc66b4006a8a54cb9c4e57494a5ef/inspector.html?
_port =9999; _nick = getHostname() + QString("@") + QHostInfo::localHostName(); _sock =newQTcpSocket(this); _connecTimer =newQTimer(this); _ws = CLIENT_NOT_AUTHENTICATED; _attempt =1; tableFormat.setBorder(0); connect(ui->msgEdit, SIGNAL(returnPressed()),this, SLOT(sndMsg())...
1.您的本地IP地址（在服务器上）是10.0.0.1（此视频将向您展示如何操作）1.没有其他软件正在侦听...
"mysql://username:password@localhost/database?connectTimeout=30000&acquireTimeout=30000&waitForConnections=true&keepAlive=30&charset=utf8mb4" Enjoy1982mentioned this issueNov 22, 2023 [ script:oxmysql] Unable to establish a connection to the database (ETIMEDOUT)!#222 ...