Questions tagged [mysql]
MySQL is an open-source database owned by Oracle. ServerFault topics include how to run the server. For more MySQL specific questions like backup/restore/recovery/configuration, dba.stackexchange.com is probably a better home.
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Replicating foreign keys with AWS DMS Full load Ongoing replication - MySQL
I am using AWS DMS Full Load Ongoing Replication (CDC) to replicate data from a MySQL RDS to an on-prem MySQL server (both of them running MySQL 8). Before starting the replication process I'm dumping ...
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MariaDB randomly crashes
I've encountered a peculiar issue related to my MariaDB database instance (version 10.2) that causes my MariaDB service to stop unexpectedly. I've attempted to investigate the problem by regularly ...
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Fluentd logs not sent to Elasticsearch on K8s
I have a cluster in VirtualBox to learn kubernetes. I have a deployment that contains MySQL and phpMyAdmin. I created a DemonSet that has the fluentd image and collects the logs to transmit them to ...
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MaxScale doesn't connect to Galera Cluster
I am working on a distributed HA cloud system and I have a Galera Cluster with 3 separated servers in Docker Swarm. It works as expected.
I have 3 separated services for the Galera members due to ...
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Can’t start mysql - error.log constantly written
Recently my sites hosted on an Ubuntu server started to display "Error establishing a database connection".
Connecting to the server, it looks like mysql is being restarted constantly (3s ...
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XAMPP mysql (Mariadb) has become unreliable
I have used XAMPP for years in Windows without any problems, but lately, it has become unreliable due to mysql (MariaDB). In XAMPP Control Panel mysql sometimes starts alright, sometimes it will crash ...
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Applying MySQL binlogs that are too large
I am trying to recover a MySQL crash. I have data as of Monday and binlogs since then, and want to apply the binlogs as the combination would be a complete set of the data. The trouble is that ...
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MYSQL use too much disk (read / write)
I have big problem with my server. I am using Ubuntu linux version 22.04. The problem is in the write / read disk (light for the disk is all the time ON) when I have turn on apache (PHP) and MYSQL. ...
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Percona MySQL 8.0.25-15 filling up slow log with headers only
Has anyone experienced an issue where when the slow log is enabled with the following options:
root@(none)> show global variables like "%slow_query%";
+-----------------------------------+...
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Why does my Docker MySQL lose privileges for some users?
I am using the mysql 8 image in a docker compose file. Periodically I discover that the mysql user I set up for a database no longer has privileges on that database. The user still exists and has ...
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Create SSH tunnel and route MySQL traffic through using NGINX reverse proxy
My company's goal is to route MySQL traffic through an SSH tunnel, but using a reverse proxy through NGINX. We created a Linux box in our Azure environment, but are struggling to complete the process.
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Passing a user input to an ssh command
I'm currently trying to create a shell script that will execute a mysqldump on a remote mysql database and then copy the output file back to my local machine. The problem I'm running into is that I ...
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My PHP sites do not work with mysql router
I recently set up a mysql innodb cluster, and have configured mysqlrouter to sit in front of it.
On my PHP applications, if I change the port from 3306 to 6446, the application hangs when it tries to ...
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MacOS MySQL Client Gets Stuck on Query That is a Certain Size
My MySQL client gets stuck on a query when the output is a certain size. When it's small enough, the query will successfully output. The client is connecting to a remote server (Ubuntu 18.04). When I ...
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Which is the correct capability in Courier SMTP config to get user's password (encryption type)
MySql: 8.0.34-0ubuntu0.22.04.1
I have followed this guide: Postfix With Courier IMAP Mail Server Installation (unfortunately they do not answer questions).
I had to change the encryption method for ...
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Disable auto reconnect for remote client connections in mysql
I use below version of MYSQL in my DB server.
root@XXXXXX-test-server:~# mysql -V
mysql Ver 14.14 Distrib 5.6.16, for debian-linux-gnu (x86_64) using EditLine wrapper
root@XXXXX-test-server:~#
...
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MariaDB 10.3.38 does not start after change from MySQL 5.7.41
I replaces MySQL 5.7.41 with MariaDB 10.3.38 on Ubuntu 20.04.
Unfortunately MariaDB does not start by itself over systemctl:
sudo systemctl status mariadb ● mariadb.service - MariaDB 10.3.38 database ...
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Using MySQL/MariaDB replication, how to know when the Replica is in a consistent state?
This is a question about MariaDB (mostly) and a replication that I am considering.
For this replication, the Primary database is updated every minute by a process which can take about 15 seconds to ...
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Is it possible to have MySQL/MariaDB bidirectional replication?
I am trying to install replication on several MariaDB servers.
With no experience at all on this.
I am wondering something.
Would it be possible to have both servers acting simultaneously as master ...
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Getting broken pipe error after spending significant time idle in mysql command line
I often spend a lot of time in my MySQL console - managing databases, making sure the integrity is in tact and browsing through recent records for possible vulnerabilities.
Whenever I am active with ...
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Unknown MySQL syntax error during the WordPress installation
I'm trying to install Wordpress on my local server according to instruction described on this page
And now I'm stuck on this step:
GRANT ALL ON wordpress_db.* TO 'wp_user'@'localhost' IDENTIFIED BY '...
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Unable to connect to my server
I'm unable to connect to my own server, which has a MySQL database which I want to access.
I correctly opened the 3306 port on the router and called my internet provider that confirmed so.
But when I ...
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4 unicode chars appear as first few characters in file which don't seem to show in vim
vi data.sql :
-- MariaDB dump 10.19 Distrib 10.4.28-MariaDB, for Win64 (AMD64)
But when I do head -n 10 data.sql I get the first line as
��-- MariaDB dump 10.19 Distrib 10.4.28-MariaDB, for Win64 (...
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mysqld[1108] [Warning] Aborted connection 7466 to db: 'unconnected' user: 'unauthenticated' host: '127.0.0.1'
I am running Ubuntu Server 20.04. It is a LEMP server running Mariadb. When I run the command sudo service mariadb status I get the following warnings:
Jul 28 00:18:59 mail.example.com mysqld[1108]: ...
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MariaDB / MySql Warning after Netdata installation. "Access denied for user 'netdata'@'localhost' (using password: NO)" How to fix?
I have configured Netdata on an Ubuntu 20.04 Server LEMP server, according to this Linuxbabe.com tutorial.
After installation, I run the following command
sudo systemctl status mariadb.service
which ...
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Memory consumption on virtual server too large for applications being run
I have a Linux Ubuntu virtual server at Digital Ocean with the following specs: 1 vCPU, 2GB of memory, and 25GB of SSD storage.
The server is running a single WordPress website with around 400 unique ...
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H3C server requirement [duplicate]
I am searching for a server that can best fulfill my requirements. I need it specifically for the best DB I/O performance for a 10-million record database. I am looking for generation-specific details ...
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MySQL server slows down 24 hours after reboot
I have a MySQl server which slows down every 22-24 hours after restarting mysql. After restarting mysql it starts working properly and after about 20 hours it starts to slow down. I increased the ...
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MySQL doesn't start on Ubuntu 22.04; unknown variable 'mysqlx-bind-address=127.0.0.1'
I'm facing an issue with installing MySQL server on Ubuntu 22.04. When I try to start the MySQL service using the command sudo service mysql start, I get the following error message
The error message ...
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MariaDB Not Starting
I left it here, reverting to an outdated backup, as I needed to get the system up and running. If there are new answers and things to try, I will try so that the issue can be resolved. I shut down the ...
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3
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how to design a sql query to have sub-columns in the result?
I tried several sql queries but it does not meet my expectations because in the result I cannot have sub-columns
i need to design a sql query for the following result (have sub-columns in the result):
...
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Why is my Default Apache Guacamole Web Client Admin Login Creds Invalid?
I'm currently setting up an Ubuntu server to run an Apache Guacamole RDP Gateway, and for some reason, when I try to login to the web client, it's giving me an invalid login error when I use the ...
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Connection to Mysql database failing from different clients
I work with an ETL tool called airbyte to move data from various data sources to our main data warehouse. I am also asking this question in the airbyte slack channel, but would like to ask it here as ...
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Web server returning high number of 502 and 504s
We have a web application (LAMP stack) with traefik as a reverse proxy that is suddenly giving HTTP 502 and 504 errors on >50% of requests, both for static files and php scripts. In the traefik ...
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Remote MySQL server returning: MySQL server has gone away / Error while sending QUERY packet
I have 2 servers (both running Ubuntu 12.04)
APP server
running apache2, PHP7.2 and a CakePHP 2.0 APP
DATABASE server
running mysql 5.7
When I'am trying to insert into the database a big blob (...
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2
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Why /var/lib/mysql takes too much space whereas actual db is small enough
In my server Db takes too much space:
Filesystem Size Used Avail Use% Mounted on
/dev/root 58G 58G 461M 100% /
tmpfs 966M 0 966M 0% /dev/shm
tmpfs 387M ...
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Why is mysql-server not installing correctly?
I just launched a brand-new t4g.nano instance on AWS EC2. The first thing I typed in is apt update; apt upgrade; apt install mysql-server-8.0. Here's the full log:
$ ssh -i ~/downloads/*.pem ubuntu@[...
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I am not able to install MySQL on Amazon Linux
Step #1: – Remove previous installed packages and clear cache
I did Step #1.
Step #2: – Setup Yum Repository
I did Step #2.
Step #3: – disable all repositories in mysql repo file.
I did Step #3.
Step #...
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SQL Error (1114): The table 'global_priv' is full
I can no longer add users to my database. I only get the error:
SQL Error (1114): The table 'global_priv' is full
I researched this issue, and the my.ini config for innodb_data_file_path did not have ...
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TeamCity upgrade fails with "Can't take exclusive lock when db lock is not held"
When upgrading to TeamCity 2023.05 (using the Docker image), I received the error "Can't take exclusive lock when db lock is not held" and the detailed instruction:
<pre>java.lang....
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How to back up mysql/mariadb database as mysql root when using unix socket for sql access in a bash script?
I am running Ubunutu Server 20.04. I have secured mariadb by using the unix socket for authentication, which means, I need to enter sudo mysql to be able to access mysql as root.
1)
If I enter
mysql -...
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Forward default mySQL port to a different port for outgoing traffic to a specific IP or Domain
We're using a hosted mySQL Database server which generates a port other than the default 3306, which we have no control over.
We'd like to not have to make changes to our existing connection scripts ...
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Bad configuration MariaDB / MySQL
I currently have a LAMP on a dedicated server but with serious problems with MariaDB (MySQL).
I have installed a website with 100k daily pageviews and due to the need for the queries it is necessary ...
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Setting up Slack Alerts for Monit monitoring MySQL
Trying to set up Slack alerts for Monit and MySQL/MariaDB but stuck in writing a MySQL check script. I have the monit successfully working if MySQL is stopped and receive email alerts - but want the ...
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MariaDB 11.0.2 fails to start after upgrade from 10.11.4
I am on Debian Bullseye and just upgraded (or at least attempted to upgrade) MariaDB from 10.11.4 to 11.0.2.
Unfortunately, the service fails to start now. All I'm getting through systemctl status ...
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Lost Local Connection to MySQL DB that resides in AWS RDS
The MySQL DB residing in AWS RDS was made to connect with resources in the same VPC. I always had to make it publicly accessible in order to connect to it through MySQL Workbench 8.0 CE in Windows 11. ...
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Docker compose - flyway not connecting to mysql
I'm trying to dockerize a microservice built with Spring Boot that uses the MySQL database and Flyway.
When I run the microservice through the IDE, the flyway manages to connect with MYSQL, but when I ...
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1
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47
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Synchronizing load balanced Linux servers
I want to load-balance two dedicated linux servers, I'm planning to do that using round robin DNS, but I can't find a way to synchronize the servers to be identical.
The servers are running a perl ...
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1
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Multiple MySQL versions using Homebrew on macOS giving Error - Can't connect to local MySQL server through socket
I am trying to set up multiple MySQL versions using Homebrew. I have already been using MySQL 8.*, which is running fine. However, due to some old project requirements today, I have installed another ...
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Frequent server downtime and suspicious server hits to access random Pdf files
Our Server hosting PHP web application is facing frequent downtime
Server Information [Nginx, FreeBSD] Web application [PHP 5.6, MYsql 5.7]
I have gone through the Nginx logs and below are my findings
...
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