Questions tagged [mysqldump]
MySQL's Standard Dump/Backup Utility
602
questions
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19 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 - ...
1
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1answer
22 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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0answers
14 views
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 ...
0
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1answer
17 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:...
0
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1answer
14 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
...
0
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1answer
17 views
MySQL queries not being executed for certain DB
I have a server that running multiple DBs, one of these DB just imported via mysqldump (.sql file). But the issue is I can't run any query on this DB, Also I can't even select it in normal mode. I ...
0
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1answer
18 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 --...
1
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0answers
25 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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22 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 ...
0
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0answers
25 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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0answers
50 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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0answers
16 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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0answers
24 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=...
0
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1answer
37 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 ...
0
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1answer
19 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 ...
0
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1answer
23 views
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
...
0
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0answers
12 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 ...
0
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0answers
23 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 ...
0
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1answer
34 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 ...
0
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0answers
24 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/...
1
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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:
...
1
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1answer
182 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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0answers
29 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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0answers
189 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 ...
0
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1answer
71 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
33 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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0answers
63 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 ...
0
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0answers
351 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/...
1
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1answer
54 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 ...
0
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247 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 ...
0
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1answer
34 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 ...
2
votes
1answer
326 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 ...
0
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2answers
450 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-...
0
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0answers
22 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 ...
0
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1answer
62 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}/${DB_NAME}.$(...
0
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1answer
47 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 + ...
0
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2answers
48 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 ...
0
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1answer
185 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 ...
0
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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 (...
0
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1answer
215 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
...
0
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0answers
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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0answers
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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0answers
61 views
How to ignore errors in mysqldbcopy
Is there an option to ignore errors and continue copy in mysqldbcopy
2
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1answer
175 views
Slow mysqldump on big table
I am running MySql 5.6 on Google cloud as VM instance, one of the tables contains 1500,000K rows with 676G .ibd file.
using mysqldump --opt --add-drop-table --quick DATABASE BIG-TABLE >DATABASE....
1
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1answer
67 views
Error while restoring the table dump
ERROR 1067 (42000) at line 25: Invalid default value for 'created_on'
I'm getting this error while restoring a table after taking the dump(remotely). I have used
mysqldump -h (hostname) -u -p (...
1
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1answer
78 views
Import Windows MySQL dump on a Debian Linux server
I created a test database on a Windows computer with MySQL 5.7 and filled it with many data records.
Now I created a database dump with mysqldump and wanted to import it on my server (Debian Jessie, ...
0
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1answer
228 views
How to specify “partition (partx)” in “mysqldump” command?
I have to export some data from a table which is partitioned, and with some extra condition
So I use mysqldump command,and use --where"xxxxxx" options as below
mysqldump -hxxx -Pxxx -uxxx xxx rtm --...
1
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2answers
89 views
mysql innodb dump restore slows down after upgrade mysql 5.7 to 8.0
I'm struggeling the last two days with the following issue:
Restoring a ~1GB database dump with only innodb tables on a mysql 5.7 server takes about 5 minutes. After upgrading the same server to ...
1
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2answers
390 views
Mysql: set variable in mysqldump
I recently added a global variable in mmy.cnf max_statement_time=120 ; to stop long running queries and to throw an exception. Its working fine. Then I am unable to run mysqldump for backing up all my ...
0
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1answer
325 views
mysqldump from AWS RDS slowing down
Im taking a db backup from AWS RDS (MySQL) slave from an EC2 (m5.large - 2c/8GB) in same AZ using -
mysqldump -hxx -u xx -p --extended-insert --single-transaction --max_allowed_packet=1G db > ...
