Successfully resolved: Get “http://localhost:10248/healthz“: dial tcp [::1]:10248: connect: connection refused.

Successfully resolved: Get “http://localhost:10248/healthz”: dial tcp [::1]:10248: connect: connection refused. I am deploying a k8s cluster and using kubeadm initialization to report the following error: The HTTP call equal to ‘curl -sSL http://localhost:10248/healthz’ failed with error: Get “http://localhost:10248/healthz”: dial tcp 127.0.0.1:10248 : connect: connection refused. reason: docker’s cgroup driver is set to system by default. […]

Solved the problem of No suitable driver found for jdbc:mysql://localhost:3306/

Solved the problem of No suitable driver found for jdbc:mysql://localhost:3306/ Table of Contents 1. Bug description 2. Location error point and reason 3. The final solution 4. Matters needing attention Summarize 1. Bug Description I encountered a problem when I was learning how to use the java database connection pool, and I couldn’t connect to […]

Software framework technology SpringBoot-realize the establishment of information tables in the database, write codes for displaying, querying, adding, modifying, and deleting data in the id, and finally output and display on the web page at port 8080 of localhost

Friendly reminder: The code in this article is long and logically complex, if necessary, it is recommended to read it in detail!!! Directory foreword 1. Code directory structure Second, the establishment of the database Student table 3. Idea code configuration 3.1 Student.java class (in the entity package) 3.2 StudentDao interface class (in the Dao package) […]

[nacos startup error] Server check fail, please check server localhost, port 9848 is available, error ={}

This article mainly solves the failure problem when nacos starts Article directory error message Solution Mac m1 computer Docker install nacos 2.x Check whether the yml file configuration is configured correctly? Is the Nacos port mapping successful? Nacos compatibility issue Error message The error message is as follows, and the reasons for this problem are […]

Resolved[W:11:55:47.235 NotebookApp] Cannot bind to localhost using 127.0:0.1 as defaultip[winError 10055]

SOLVED [W:11:55:47.235 NotebookApp] Cannot bind to localhost using 127.0:0.1 as defaultip[winError 10055] Operations on sockets cannot be performed due to insufficient system buffer space or full queue Traceback (most recent call last):File “D: Jupyter Scripts jupyter-notebook-script.py”, line 0, in :IDLEsys.exit(main0File “D:\Jupyter lib\site-packages jupyter_core application.py” , line.270, in launch instance return super(JupyterApp,.cls).launch instance(argv=argv, **kwargs)File “D:\Jupyter libsite-packages(traitlets(config […]

java.sql.SQLException: Access denied for user ‘root’@’localhost’ (using password: YES)

According to searching information on the Internet, there are generally three reasons for this problem: 1. The database user name and password in the program are inconsistent with the database; 2. Insufficient database permissions; 3. There are more spaces in the database configuration file jdbc.properties. 1. Check whether the first one exists, and find that […]

[Solved] I/O error on POST request for “http://localhost:9411/api/v2/spans”

Display of error message When integrating the microservice architecture, an error message appears in the console: I/O error on POST request for “http://localhost:9411/api/v2/spans” Problem Analysis It can be seen from the above figure that the error is caused by zipkin, but the current project does not integrate zipkin. After consulting the data, it is found […]

[Solved] MySQL installation: ERROR 1045 (28000): Access denied for user ‘root’@’localhost’ (using password: YES)

Directory 1. Problems with MySQL installation 1. If the service fails to start at the end of the installation, modify the service properties according to the online tutorial—may cause the subsequent cmd to fail to start sql. 2. Solve Uninstall: re-install result: Highlights: Summary: System applications are best to follow the recommended C drive directory […]

[Solved] Proxy error: Could not proxy request xxx from localhost:8080 to http://localhost:3000(ECONNREFUSED)

Questions When mocking data, an error is reported when configuring the proxy of devServer in vue.config.js, the error is as follows My configuration is as follows: module.exports = {<!– –> devServer: {<!– –> proxy: {<!– –> ‘/api’: {<!– –> target: ‘http://localhost:3000’, bypass: function (req, res, proxyOptions) {<!– –> if (req.headers.accept.indexOf(‘html’) !== -1) {<!– –> console.log(‘Skipping […]

[Solved] MySQL – ERROR 1045 (28000): Access denied for user ‘root’@’localhost’ (using password: NO/YES)

1. Error report 2. Solve the error Go to the configuration file my.cnf vim /etc/my.cnf Add the following under [mysqld]: skip-grant-tables Restart the service after saving and exiting: systemctl restart mysqld Then re-enter mysql Note that there is no need to enter a password here, just press Enter: mysql -uroot -p After logging in, change […]