Questions tagged [mysqldump]
The mysqldump tag has no usage guidance.
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Problems with MySQL 8.0.29 Data Corruption, Need Upgrade Path Advice
I have a master and 3 slaves running the buggy 8.0.29 version of MySQL. Yesterday 2 of my slaves stopped synchronizing and I couldn't complete a full resync from a fresh dump because I kept getting &...
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mysqldump encrypted table - keep encryption
If we have a table that is encrypted at rest, like this:
https://dev.mysql.com/doc/refman/8.0/en/innodb-data-encryption.html#innodb-data-encryption-master-key-rotation
How can we configure mysqldump ...
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Cron job to backup the MySQL database produces empty dump files with no errors logged that I can find
My site is controlled via cpanel. I want to automate the backup of my databases and then automate their download to my development machine. The first step was to set up the cron jobs as follows
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mysqldump - username takes "-p" as well
I use the following script to read database credentials from a Wordpress installation:
DB_NAME=$(sed -n "s/define( *'DB_NAME', *'\([^']*\)'.*/\1/p" wp-config.php)
DB_USER=$(sed -n "s/...
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How to restore sql+txt dump?
I have some dumps created with the following command:
mysqldump --host=$host --user=$dbuser --password=$dbpass --tab=$backupdir/$dbname $dbname
That created couple files table.sql/table.txt with the ...
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How to downgrade mysql-client from 8.0.27 to 8.0.26 on Ubuntu
MySQL 8.0.27 has a bug when used to connect to Azure, where it uses all CPU resources and never connects.
Therefore I would like to downgrade to 8.0.26
What I have tried so far:
#uninstall any mysql ...
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MySQL Dump on Ubuntu 20.04 returns 0 byte file and runs indefinitely. Works on Ubuntu 18.04
I am using identical configs on Ubuntu 20.04 as I was previously on 18.04; however, on 20.04 the CPU shoots up to 50% usage and the process runs indefinitely, and by indefinitely I mean it was running ...
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Mysqldump really slow when dumping to network drive
I'm facing an issue when dumping a mysql database to the network drive. The thing is I'm getting really slow speeds (around 3-7mb/s).
Dumping locally, the speed is fine. I've coded my own program that ...
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1
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How to get a local mysql dump of a specific AWS RDS Snapshot
Hello I have a linux bastion host in AWS that I am able to SSH into. In the Bastion I am able to run a mysqldump command which makes a copy of an RDS instance. What I want to accomplish is being able ...
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slow environment with high CPU usage [closed]
I'm new to Linux metrics
in our test environment we experiment a slowness, after investigation we have found that the disk space used to store backup data is full, but what is wired for me is that the ...
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2
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447
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Default password in .my.cnf for a specific user
We've got a backup script which takes a mysql dump every night, and to authenticate we've got a .my.cnf file with
[mysqldump]
password=somepass
However, every mysql user that doesn't pass in a ...
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1
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Used mysql command instead of mysqldump
I wanted to backup my MySQL database and I accidentally used mysql command instead of mysqldump. So I executed:
/usr/local/mysql5/bin/mysql -u db_username -p db_name > db_backup.sql
Instead of:
/...
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Backing up a large database using mysqldump and CRON
I'm trying to backup a single MySql Database on my website using CRON but it's not working. Command is
/usr/bin/mysqldump -uUSERNAME -pPASSWORD --databases DATABASENAME | gzip > /home/MYSITE/...
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Mysql database restore from rescue mode server
I have one server which is in rescue mode, and limited run the command even the mysqldump. I tried to restore the client database to new server by manually upload and created database but the sql ...
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Database Restore ERROR 2013 (HY000) at line 68497: Lost connection to MySQL server during query mariadb
I have a Database of 150G - 300 Mio entries and i want to restore it (gz SQL Dump) on MariaDB 10.3 but the restore failed because the sql server gone away. I tried to raise max_allowed_packet to the ...
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Install MySQLDump for MySQL 8.0 on Ubuntu 18.04
I am trying to install mysqldump on a Azure hosted Ubuntu VM.
During the build process I attempt the following command:
sudo apt-get update
sudo apt-get install -y --no-install-recommends mysql-client-...
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mysqldump: Couldn't execute 'show create table `xxx.yyy`': Table 'yyy' doesn't exist in engine (1932)
I had to redo my server (Debian 9) in Proxmox. I updated a package (libc6) and I broke the dependencies (I didn't snapshot it...). One of the affected daemons was MySQL / MariaDB, I could not make a ...
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3
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mysqldump using a lot of space
I have a server and the / partition is 20GB in size.
Databases are stored in /mnt/mysql-data partition is 500GB in size.
Now here's the problem. Whenever I run mysqldump it fills up / partition to ...
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Solved 'ERROR 1054 Unknown column' importing into MariaDB 10.4
I recently tried to migrate a database from an old Debian 8, MariaDB 10.1 server to a new Debian 10, MariaDB 10.4 but met with this nasty error
ERROR 1054 Unknown column 'pusername' in 'field list'
...
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How to compress SQL file correctly on CentOS?
I have a database whose size is roughly 3.1 Gb according to PhpMyAdmin.
I would like to dump and compress it with gzip.
This is a very similar answer to what I'm trying to do:
https://serverfault....
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763
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Errors while restoring mariadb/mysql dump in docker
I'm running mariadb in a docker container. I want to backup and restore using a sql dump.
I created the database for use with wordpress, and created just one test page. I installed phpmyadmin to the ...
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mysqldump extremely slow when using a private ip
I am facing a very strange issue with Mysql.
I have two cloud server and they are in the same region and VPC network so the internal connection speed is quite fast. Both servers are running CentOS 7....
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2
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MySQL using ridiculous amount of memory to import 1-2GB SQL files
I have a MySQL server running on an Ubuntu 18.04 machine via Docker. The machine has 32 GB of RAM.
I have about 300 1-2GB SQL files which need importing into a database on the server, into a single ...
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3
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Mysql runs out of memory during backup dumps (Docker container)
We have a container running MariaDB, and a few other small containers on the host. The Mysql container was allocated 21G of memory (out of 32G total), as well as a few other parameters, with the ...
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Mysqldump to compressed file
Situation:
1. mysql is backuped to disk with mysqldump (~250 GB)
2. dump is compressed with bpzip2
3. dump is moved to another DC
4. disk usage again in good state
Problem:
Filesystem usage peaks, ...
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1
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118
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MySQL restore from dump working on OSX but not Windows
I have created a dump from a CloudSQL database for local development. I can successfully run the dump file to restore the database on a computer running OSX but when trying on a colleagues computer ...
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mysqldump piped to gzip then s3 doesn't to run out of disk space
I run the following command which all.sql.gz is greater than the amount of free space on hard drive....but somehow it completes without issue. Is it because of how the piping works?
mysqldump --...
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Output of mysqldump all-databases failed to run in MySQL 8.0 because of dropping the 'mysql' database
Problem statement
mysqldump --add-drop-database --all-database
creates a dump that contains
....
/*!40000 DROP DATABASE IF EXISTS `mysql`*/;
....
This is expected and I believe is a correct ...
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613
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Is mysqldump's binary portable across distributions?
I'm trying to write a backup program that works everywhere and is easy to install. My program downloads a mysqldump binary and runs it to export the database.
I want to avoid requiring users of my ...
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mysqldump throws: Unknown table 'COLUMN_STATISTICS' in information_schema (1109)
Every time I try to make a mysqldump I get the following error:
$> mysqldump --single-transaction --host host -u user -p db > db.sql
mysqldump: Couldn't execute 'SELECT COLUMN_NAME, ...
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Export Local MySQL Table Into Remote Database
I am trying to export only some tables in a local database, into a remote database which has the same name of these tables + some other tables (I want to overwrite the remote database tables which has ...
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MySQL Table Checksum - Before or after MySQL dump?
The company I'm currently working for has a script that runs at night that takes a MySQL dump of the production environment and imports it into the staging environment. This is a very basic setup - No ...
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Large MySQL Database back up ZURMO [closed]
Not sure if anyone if familiar with Zurmo. Long story short I need to back up the whole database for it. I would use PHPmyadmin but I didn't install it when I set up Ubuntu Server. I want to use ...
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213
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Mysqldump over SSH Fails silently with crontab
A colleague is attempting to back up a mysql database on a Windows machine from a linux machine on a schedule. The linux and windows machines use different versions of mysql, so we can't run mysqldump ...
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1
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mysqldump: The 'INFORMATION_SCHEMA.SESSION_VARIABLES' feature is disabled
When I try to run mysqldump on a Percona Server 5.7.17-12, I get this error:
# mysqldump -u backups -pxxxx -h 127.0.0.1 --single-transaction --quick dbname
mysqldump: [Warning] Using a password on ...
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Is it safe to mysqldump a section of missing data for re-importation with my flags?
Let's say on a test database about a year's data got erased. I got the two id's for the data in one year at the earliest and the data in the other at the latest and therefore a range of what's missing ...
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2k
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Will running mysqldump on one Percona XtraDB cluster node affect performance on the others?
I have a Percona XtraDB cluster with 3 nodes. Only one of these nodes is connected to by the application that uses the database.
I would like to perform 'hot backups' simply using mysqldump on one of ...
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Remote Dump of MySQL user issue (behind VPN)
I'm trying to remote dump a MySQL db that is behind a VPN (I'm VPNed in):
mysqldump.exe -h 10.39.23.111 -u dbuser -p remoteschema > c:\temp\mysql.sql
The error message I get is:
mysqldump: Got ...
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What is best method for fixing a out of sync mysql slave when pt-online-schema-change, pt-table-sync, xtrabackup do not work?
We all know, there are several methods for syncing data from a mysql master to a slave. After reading many blogs about this issue, two common tools always come up:
pt-online-schema-change
pt-table-...
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Adding mysqldump parameters in automysql
Please excuse any formatting or grammatical errors.
I am currently using automysqlbackup to take local backups of my mySQL database. I recently started to having problems that is connected to that ...
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Log the error and warning while restoring the sql dump on MySql
How to log the error and warning while restoring the SQL dump on MySQL ?
Following are the steps we were doing.
mysql> CREATE DATABASE dbname;
mysql> USE dbname;
mysql> SOURCE dbdumpname....
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