An open-source, relational database management system.

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Centos 7 - Recover mysql db from data files .frm and .ibd

I really need your help. I have migrated my operating system from Windows to Centos 7 without getting backup of mysql through mysqldump. Now I have mysql data files .frm and .ibd . I want to migrate ...
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17 views

How to pass password to mysql command line

I have MySQL password saved on a file foo.php, for example P455w0rd, when I try to use it: $ cat foo.php | grep '$dbpwd=' | cut -d '"' -f 2 | mysql -U root -p mydb -h friendserver Enter password: ...
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1answer
18 views

php server can't connect to the remote mysql server

We have two servers. server 1 and server 2 they are running with Directadmin / CentOS6 my plan: server 1 is running php and html, images...etc. server 2 is running mysql and phpmyadmin They are ...
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43 views

Write permissions inside of shell script

I am using a Debian 7 Server. I created a shell script to be executed by crontab to save a mysqldump every day. mysqldump *database* -u *mysql-user* -p*mysql-password* > ...
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9 views

How to store output variable into database field? [migrated]

Here is my php code which runs shell_exec function to run linux based program. I am getting output. But I am not able to store it in to mysql database. Can anybody tell how to store $output variable ...
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13 views

Howdo i avoid older mysqlclient versions

i'm running some CentOS servers. PHP and MySQL are installed from 3rd party repos. My problem is that on all servers i always have php mysql clients running their version far behind the actual mysql ...
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1answer
80 views

List available SQL commands at MySQL CLI

Is there a way to list available SQL commands at MySQL CLI? I mean if I type help at MySQL CLI I see various MySQL CLI specific commands like clear(\c) or tee(\T), but it would be handy to see a list ...
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29 views

MySQL: connection refused…coudn't find mysqld.service

I am trying to install MySQL onto a Fedora 14 VM. I successfully installed it using yum install mysql mysql-server after which I tried to start it with systemctl start mysqld.service which ...
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33 views

MYSQL has randomly stopped and will not start, how can I get it back online?

Our Linux web server is Ubuntu that is running VirualMin, it has been up and running for months with very little issues and all of a sudden the MYSQL service will not start. The message being shown ...
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77 views

MySQL read only error but permissions set and SELinux AFAICT correct

I am new to MySQL and Linux and because I had issues with an old MySQL version (5.1) I used mysqldump and installed MySQL 5.6. I changed the datadir location by copying everything to the new folder ...
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36 views

is THP good or bad for MySQL Server?

Linux kernel new feature called Transparent Huge Pages (THP) which is by default enabled on CentOS 6.x and above OS. Is THP good for MySQL DB machine? I am trying following to disabled THP but seems ...
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31 views

HAProxy with Roundrobin working only on 2 of 3 MySQL servers, why?

Good day. I'm following this article to configure HAProxy to balance with roundrobin between 3 MySQL servers (db1, db2, db3) in a MariaDB Galera cluster (working perfectly). However I have a ...
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1answer
20 views

Appending to a CSV file after obtaining datum from a database

I can [finally] extract data from the MySQL DB my_database_query="SELECT * FROM my_database.database" mysql -uUSER -p'PASSWORD' << EndOfFile $my_database_query EndOfFile How can I append this ...
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1answer
36 views

Unable to access another server over local network on Digital Ocean

I have two servers. Let's call them A and B. Both are running ubuntu server 14.04. B runs percona server. Now I do not have any firewall set-up on either servers still I am unable to connect to server ...
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196 views

Error starting MySQL in a MariaDB Galera cluster in CentOS 7

I'm trying to setup a MariaDB Galera cluster following this tutorial exactly as it is, and I'm stuck in the Step 7– Initialize the first cluster node, I'm doing so with sudo /etc/init.d/mysql start ...
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1answer
39 views

Rebooting Centos Servers configured with MYSQL Master/Slave Replication

Sometime ago we configured MYSQL replication on our main web server to another CentOS 6 server. All is working perfectly and we can see the replication is working fine. My question is how to safely ...
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1answer
40 views

Why does logrotate zip a file before it is closed

I'm using logrotate to rotate mysql output. When cron runs logrotate, I get frequently get an e-mail with the following content: error: Compressing program wrote following message to stderr when ...
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1answer
29 views

Looking for an email server that supports mysql ssl connection

I am trying to secure connections to my MySQL server. I have SSL set up but I am looking for programs that support a SSL connection to MySQL. Specifically I am currently looking for an email server ...
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2answers
87 views

import .sql file into a remote server from a local machine

I've created a database in the remote machine. Currently, the database is empty and I need to import using a backup(.sql) file. The backup file is in my local machine, it is a 40gb file. And the ...
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1answer
59 views

Mysql exited with status 1 and restarted every 24 hours? How to debug?

After upgrade, MySQL on Ubuntu 14.04 keeps crashing and is restarted every 24 hours according to the dmesg. I would expect to some reason for the failure in MySQL logs, but all are empty. Any ideas ...
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39 views

How do I troubleshoot these SELinux AVC errors?

Background: I have a CentOS 6 LAMP server. Recently the server has started to become unresponsive every few days. Originally, mysqld would throw a nagios alert and I would be unable to even ssh into ...
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1answer
70 views

How to move mysql database and mysql server to another machine

I am having Ubuntu 14.04 desktop in which i develop software. Due to some reasons my hard disk has developed many bad sectors. I want to move my mysql server software and all the databases to a new ...
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1answer
32 views

Option --skip-slave-start Not Working with Systemctl

I just started with centos 7. I'm trying to get replication working and am attempting to start mysql without starting the slave (so that I can set the pointers as to where it's supposed to resume ...
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80 views

Chromebook crouton LAMP

I'm trying to install a LAMP stack on Ubuntu through crouton on a Chromebook (Acer c720p). I was able to install the following packages apache2 mysql-client mysql-server php5 libapache2-mod-php5 ...
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1answer
132 views

When saving INTO OUTFILE from mysql on a systemd based system, the output file is grabbed by systemd — why?

I regularly run simple reports from a mysql (actually, mariaDB) database: MariaDB [acts]> SELECT resolution, title FROM acts ORDER BY resolution INTO OUTFILE '/tmp/acts-titles.txt'; Recently I ...
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195 views

Installing owncloud8 on CentOS 6

I'm trying to install owncloud 8 on CentOS 6 - the problem is that the default CentOS repos have only php 5.3 - but owncloud 8 requires php 5.4. So following this guy: How to install Owncloud on ...
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17 views

MYSQL dump of tables that start with docs_ from one server to another

The headline says it :) I would need script that dumps all tables from 'ads' database on different server(s2) starting with 'docs_' copied to my server(s1). Any hints? The reason that I need script is ...
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1answer
40 views

Not able to rename root user of MySQL

As part of security hardening, I wanted to remove/rename root user of mysql. While trying I get an error mysql.procs_priv doesn't exist. what is the significance of 'mysql.procs_priv'? Is it ...
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1answer
127 views

Debian - problems updating mysql 5.6

I just tried to update my dev database that runs on debian 7.8. Unfortunately it's now giving me the folllowing error: ... W: Failed to fetch http://repo.mysql.com/apt/debian/dists/wheezy/Release ...
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89 views

can't connect to remote host with MySQL…firewall problem?

I've granted privileges to thufir for remote access through the shell (correct?), but cannot seem to actually connect. The router firewall has SPI to off. I've disable the IPv6 firewall on the ...
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441 views

warning: mysqli::real_connect(): Headers and client library minor version mismatch. Headers:50537 Library:50623

warning: mysqli::real_connect(): Headers and client library minor version mismatch. Headers:50537 Library:50623 How do I do with it? I think I have a different version between mysql client and ...
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20 views

Postfixadmin keeps loading while adding mailbox

I have configured postfixadmin 2.92. While adding mailbox postfixadmin keeps on loading and does not return any information like mailbox is created. But in mysql the mailbox has been added. Later when ...
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35 views

FreeBSD Reinstall postfix with mysql support

I have installed postfix using the ports tree without making modifications to anything. In my main.cf file i can't specify any 'Mysql:/' arguments because postfix does not have mysql support. Now i ...
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1answer
121 views

How to Subscribe a Bash Script as a MQTT Client

From my understanding: Client can be any device as long as it has an MQTT library running on it, from a microcontroller to a server, but must be connected to an MQTT broker over any network Broker ...
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1answer
39 views

Having problem with mysql dbdump when password starts with special character

I am trying to take a db backup with a php file that is running from a cronjob. It was running fine when I tested with sample db. But when I used the actual db there was an error. I am using ...
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1answer
59 views

Combine the output of while loop into tar

I'm trying to create a script that mysqldumps all my databases, creating an individual .sql file for each database and combines the output into backup-DATE.tar.gz. I've gotten as far as being able to ...
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1answer
54 views

Calculating RAM/Swap Space Requirements [duplicate]

I have been developing a MySQL database that makes some use of BLObs. This has now been transferred on to a virtual machine (VM) in preparation for going fully into the 'cloud'. However some of the ...
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1answer
88 views

Respawn MySQL on Ubuntu? Server ran out of memory, killed MySQL & Apache, MySQL didn't respawn

Just as above, I increased the RAM (it's a VM), but that doesn't give me a safety net. I was under the impression by default it should respawn, but that doesn't seem to be the case. *Ubuntu 10.04 ...
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2answers
94 views

MySQL won't start

I'm using a debian system. I could not start my mysql after the partition went full - I received the message "ERROR: The partition with /var/lib/mysql is too full!" I found a recommendation to delete ...
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1answer
90 views

replace text in a file

are there any usefull command to replace all text that contain number and remove those number . Ex: myimages-202x250.jpg width="202" heignt="250" replace to myimages.jpg width="217" height="317" ...
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381 views

Can't start mysql server on OpenSUSE 13.2

Try to start the server: # service mysql start Output: Job for mysql.service failed. See "systemctl status mysql.service" and "journalctl -xn" for details. Output for "systemctl status ...
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65 views

Modifying SELinux settings to allow for MySQL to run on CentOS7

I'm trying to install MySQL 5.6 on Cent OS 7 with SELinux enabled and am trying to get past the error (in /var/log/audit/audit.log): type=AVC msg=audit(1424111345.853:558): avc: denied { execmem } ...
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30 views

How to access MariaDB on Debian Server from Win Machine on same network

I'm having trouble accessing my MariaDB server from my windows machine on the same network. When I try to create an ODBC connector from within MS Access using the local IP and the correct ...
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2answers
64 views

how do I find the location of mysql drivers on CentOS 7?

MariaDB is installed on a remote CentOS 7 server. How can I find the location of the nearest equivalent to mysql-connector-java-5.0.8.jar in the server's file system? grep seems to only search ...
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1answer
20 views

Mysql: remote and local access

I have a gentoo where is installed a mysql server. I need a remote access to this server, so I have modified the option bind address in the file /etc/mysql/my.cnf bringing it from bindaddress: ...
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1answer
55 views

Is there any way to install MySQL 5.1 and PHP 5.3 on Centos 7

Is there any way to install MySQL 5.1 and PHP 5.3 on Centos 7. I researched a lot but could not find any link which gives step by step procedure. Can someone please give me steps to be followed to ...
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16 views

put second instance of mysql in autostart

System: Debian GNU/Linux 6.0.10 I have two instances of MySQL running on my Server. The default one is (probably) already set in autostart, since there are some files in the /etc/rc.X named S03mysql ...
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1answer
88 views

mysql high availablity for LAMP application (ubuntu 14.04)

im trying to achieve HIGH Availability (HA) for a LAMP application(News Portal website) which might be of interest to many unfamiliar users.For files im using Glusterfs (replica) for redundancy ...
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15 views

Finding out the script causing MySQL failed connections

I see lot of lines in mysql.log Connect Access denied for user 'M'@'localhost' (using password: NO) I am sure I don't have such a user on my system. I need to figure out what script is ...
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2answers
669 views

What does “task mysqld:xxx blocked for more than 120 seconds” mean?

We are troubleshooting a MySQL issue where some queries are taking a very long time complete and I see many of these entry in /var/log/messages: Jan 28 05:52:15 64455-alpha01 kernel: [2529273.616327] ...