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Questions tagged [mysqldump]

MySQL's Standard Dump/Backup Utility

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1answer
11 views

mysql - cancel source call

I want to cancel calling a source file on a mysql server which includes an enormous amount of data. It appears to be a sqldump that is broken into many small updates for many tables. First I tried ...
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25 views

Using mysqldump with WHERE clause but WHERE clause only applying to specific table? [on hold]

This question is related to a question I posted on another StackExchange site. Question: How to apply the --where argument only to a specific table when mysqldump-ing a whole database? So I have a ...
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1answer
33 views

Import a large MySQL dump 68GB on RDS instance

I tried to import a large MySQL dump.sql (68GB) on RDS AWS instance MySQL 8.0 (db.t3.2xlarge: 32GB RAM). The import takes more than six hours: More than 500 tables I have 2 large tables: the first ...
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MariaDB mysqldump lacks all data - how do I force including it?

for years I've been using mysqldump without much trouble. Recently I joined a project that is using "MySQL dump 10.14 Distrib 5.5.52-MariaDB, for Linux (x86_64)" and when I attempt to do a dump it ...
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52 views

mysql to mariadb: unknown collation utf8mb4_0900_ai_ci

I have a mysql 8.0 that I exported using mysqldump. I am trying to import it onto a Mariadb 10.4 database with phpmyadmin, both are the most current versions. Each time I do it though, I get: Error: ...
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1answer
26 views

mysqldump is ignoring option '--databases' due to invalid value

I have this MySQL database named capsule_corporation_database. Then, I have this my.cnf file in my home directory: ~/.my.cnf [client] host=localhost user=trunks password=mai database=...
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Database synchronization 2 times a day -MariaDB

I have 2 different servers. The first one is server1 and the other is server2. On servers, one works for websites (server1) and the other for mobile applications (server2) for security purposes. I ...
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2answers
15 views

Using MySQL binary logs to keep backups between database dumps?

I currently take a full database backup using mysqldump once a day. I'd like to make this more granular (e.g. every 15 minutes), but can't just take more full dumps due to size constraints. Can I use ...
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53 views

Are `--events` and `--routines` really needed to get a `mysqldump --all-databases` of an entire mysql instance?

Several fine answers on here have already exquisitely argued that mysqldump --hex-blob --events --routines --triggers [...] --all-databases should be all - modulo storage-engine considerations - ...
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1answer
28 views

Does a MySQL dump that contains triggers double data on import?

I have a quick and simple question to clarify. I have medium sized database (400 Gigs) running in MariaDB 10.2 with lots of tables and lots of triggers as well. I am planning to take a mysqldump and ...
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Possible issues dumping a legacy MySQL 5.0 database to a local MariaDB 10.2 for develpment?

I've inherited a site that uses MySQL 5.0 and want to get a development version up and running with the existing data on my local (OS X) machine where I have MariaDB 10.2 but the compatibility tables ...
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1answer
27 views

mysqldump can write to /tmp and /var/tmp but nowhere else

I have various mysql databases on different servers and at different versions. I'm using the same mysqldump command across Linux versions without issue except for this new Red Hat 7.6 server. Command:...
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1answer
63 views

Incomplete dumps using mysqldump

I am running Mysql server with master and slave replication. From past few days i found that backups on my master server are incomplete. When i ran manually on master it's returning the below error ...
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1answer
61 views

Error Unknown command '\U' when restoring MySQL dump on Windows

I am updating software that used MySQL 5.4.3 in its old version, and now uses MariaDB 10.2.11. So, I dumped the old data with that command: mysqldump -uroot -p --no-create-info --skip-triggers --...
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28 views

Restoring a mysqldump loses user privileges for routines?

When I try and restore a mysqldump, the user privileges against some routines are missing. From what I can tell that is happeneing the routines that are in schemas that are loaded after the mysql ...
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29 views

mariadb import - all rows missing except those in final INSERT of InnoDB tables

This is a very strange bug. I'm using this on a mac: mysql Ver 15.1 Distrib 10.4.6-MariaDB, for osx10.13 (x86_64) If I import an SQL dump of a WordPress DB (so not very complicated structure, but ...
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32 views

Mysqldump is not exporting the full table (phpmyadmin and sqlyog neither)

When I export the table from PhpMyAdmin it downloads a .sql file with just a small part of the database (like 2 or 3% my table is 84M rows) I have tried with SQLYog and mysqldump with a similar result....
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161 views

Error: ERROR 1047 (08S01) at line 6955: WSREP has not yet prepared node for application use

While restoring a dump from a CloudSQL instance into a node of a Percona xtradb cluster, I am getting this error. The line 6955 in the .sql dump file is in bold below: DROP TABLE IF EXISTS `...
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1answer
46 views

how to dump via mysqldump hugh table into chunks

i have very hugh table , around 100 M records and 100 GB in a dump file , when i try to restore it it to a different DB i get sql query lost connection , i want to try and dump this table into chunks ...
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64 views

mysqlpump --set-gtid-purged=OFF still adds @SESSION.SQL_LOG_BIN=0;

Whenever I add --set-gtid-purged=OFF, it still adds @@SESSION.SQL_LOG_BIN=0; to the output. According to the documentation, shouldn't it get removed? --set-gtid-purged=OFF: SET @@SESSION.SQL_LOG_BIN=...
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1answer
53 views

How to MySQLDump with For Channel to set up multi-source replication?

I'm trying to set up multi-source replication. But, when I try and import the second database I get the error: ERROR 3079 (HY000) at line 28: Multiple channels exist on the slave. Please provide ...
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1answer
32 views

Does MySQLDump Verify the backup as restorable

I have written a PowerShell script to use MySQL dump to perform full backups of a specific database at a specific time. I am wondering if I need to confirm the backup is restorable via my script or ...
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1answer
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Backing up and restoring all databases in MySQL on linux

I plan to dump all databases on one computer and restore them on another using the following 2 commands:- mysqldump -u username -p --all-databases > dump.sql mysql -u username -p < dump.sql ...
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18 views

All rows not being exported in MySQL dump

I have a MySQL instance (5.7) which is just a single instance. It is not setup to have slaves/replicate. I've updated my stack to have slaves. In the process of moving to this newer stack, I needed to ...
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100 views

How to take mysqldump with Generated column?

I am getting below error while importing the dump, ERROR 3105 (HY000) at line 82: The value specified for generated column 'column_name' in table 'table_name' is not allowed. When I describe the ...
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1answer
39 views

Can we use MariaDB mysqldump CLI to take dump from MySQL Community version?

MySQL server version: mysqld Ver 5.7.26 for Linux on x86_64 (MySQL Community Server (GPL)) MariaDB mysqldump CLI version: mysqldump Ver 10.17 Distrib 10.3.12-MariaDB, for Linux (x86_64) I am ...
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38 views

error while restoring database from mysql: ERROR 1006 (HY000)

I made a mysqldump from all my databases prior to fully deinstall and reinstall MariaDB. while restoring the databases with the following command, logged in as root: MySQL -u root -p < /mnt/...
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1answer
17 views

mysqldump changes primary key to unique key?

While attempting to dump and restore a WordPress database in MySQL, I noticed that mysqldump seems to be changing the PRIMARY KEY on several tables to a UNIQUE KEY instead. For example, this tables: ...
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1answer
324 views

Database size twice as large after mysql dump and re-import

After exporting and re-importing a mysql database, the size of the database on disk appears to be quadrupling in size. Any ideas why this my be? This is occurring when importing the sql dump right ...
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30 views

mysqldump writes dumped data to output

I'm trying to bring incremental backups to one old setup. The script I create worked perfectly when run directly. However when I run it from crontab or when redirecting shell output all data is ...
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294 views

how to dump mysql schema without keys and without constraint ? and keep all of them to alter afterwards

i am using ubuntu 16.04 and want to dump large schema with hounded of tables from AWS rds, remove all keys and foreign key , load data and then add back the keys , is there any automatic tool that ...
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1answer
103 views

How to restore mysqldump of one database in different databaseName with content of data in the same host machine

Let's start from the beginning there is a MySQL database with name DB1. As I want to restore the mysqldump backup of DB1 database in DB2. The DB2 database is another database in same Host Server ...
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2answers
50 views

mysql - import only schema from full dump?

I have a full database export (single file, schama + data), but I would like to import only the database schema. Is there any magic option or trick to achieve this? I'm NOT able to perform a "...
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68 views

How to speed up MySQLl loading from dump file?

I'm using mysqld Ver 5.7.25-0 in Ubuntu 16.04. I dumped from AWS Relational Database Service (RDS) with mysqldump --single-transaction --quick --max_allowed_packet 1G ... and now when I tried to load ...
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404 views

large dump: mysqldump: Got error: 2013: Lost connection to MySQL server

I need to dump to a text file a large database, which comprises one laaaarge table. I'm ding it like this: # mysqldump -p --single-transaction --quick --max-allowed-packet=2147483648 --tab=/mnt/...
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1answer
68 views

SQL dump loads with Error 1064

Looks like this issue is just the wrong version of MySQL, need to go to 5.5 So I have a backup of an offsite source SQL database. I am not sure how they are preforming the data dump but I am trying ...
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289 views

MySQL reporting version mismatch due to picking up previous installation

To solve a mysqldump "Workbench was unable to get mysqldump version. Please verify the log for more information.", I opted for the first solution at https://stackoverflow.com/a/44851129/175241 But ...
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1answer
38 views

Mysql replication rebuild dump database lock

I need to rebuild master-slave replication of whole instance of mariadb on innodb. What I often see is that people do read lock then dump master then unlock, like: FLUSH TABLES WITH READ LOCK; SHOW ...
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1answer
457 views

How to fix the sys.host_summary table in MariaDB 10.3.13

using mysqldump while doing a backup gives the following error: mysqldump: Got error: 1356: "View 'sys.host_summary' references invalid table(s) or column(s) or function(s) or definer/invoker of view ...
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2answers
659 views

Mysqldump multiple tables with where clauses in single transaction

Suppose, we have 2 tables: t1,t2 in database db: Expected the below code to dump tables based on conditions specified in the where clauses: mysqldump --login-path=login_path \ --single-...
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30 views

mysqldump and mysqlcheck not returning any output

Because I am unable to start the mysql daemon, I have edited my my.cnf files so that innodb_force_recover=6. Now I am able to start the mysql daemon. I guess the data are corrupt somewhere so I am ...
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1answer
79 views

Batch query a lot of MySQLdump files

I have a website for an event. I set up a cron job to back up the database every hour. The backup command is mysqldump -u"$DB_USER" -p"$DB_PASS" --database "$DB_NAME" >"${OUTPUT_DIR}/${DB_NAME}.$(...
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1answer
50 views

Safe online dumping of an InnoDB database in the presence of DDL changes

When dumping an InnoDB database using mysqldump, it is often recommended to use the --single-transaction and --skip-table-locks options. This allows for minimal blocking of other concurrent reads + ...
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2answers
58 views

(Partially) clone a huge DB for DEV purposes

I want to setup a dev and test environment for website that has a huge MySQL database. Since this DB is so big, it is quite inconvenient to clone it 1-on-1, because it simply takes too long and uses ...
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1answer
227 views

Unable to export 8.0.1 MySQL database using MySQL Workbench 8.0

I'm unable to export my 8.0.1 MySQL database using MySQL Workbench 8.0. When I go to perform the export via the "Administration" table, with all the default settings (I didn't change anything ...
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0answers
23 views

How to effectively, and efficiently and the simplest way to partition and move data from one db to another?

We have a large database with client data, with many entities, but we dont allow connections to the production db (mysql) due to security. Only option remaining is to move some data to development db (...
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1answer
327 views

How to restore dump from MariaDB 10.1 to MySQL 5.5

I generate backups of my databases by using mysqldump.exe -u root --all-databases > mariaDbBackup.sql. When I try to restore my dump by doing mysql -u root -p < mariaDbBackup.sql, I get an ...
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9 views

MyISAM Mysqldump failing with a 1.5GB database on a VPS

It's basically because of a memory issue. I just downgraded to 2GB ram on this openvz vps. And the swap can't be changed from 512mb. Another database at 350MB has no issue finishing. But the 1.5GB db ...
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11 views

How to know if a sql dump has been already imported?

I am writting a Dockerfile where the entrypoint script checks if any *.sql file present inside initdb.d dir then it import that *.sql file. However as this import mechanism is a part of entrypoint ...
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70 views

How to ignore errors in mysqldbcopy

Is there an option to ignore errors and continue copy in mysqldbcopy