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Questions tagged [mysqldump]

MySQL's Standard Dump/Backup Utility

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1answer
1k views

error 1146 when importing mysql DB

I'm trying tu dump and re-import a database, I'm using the following bash script to export (I have reasons to export each table separately) for x in `mysql --skip-column-names -h [host] -u [user] -p[...
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2answers
1k views

mysqldbcompare SELECT command denied to user

I am trying to run mysqldbcompare to see the difference between two tables: mysqldbcompare --server1=server1:2016@localhost --server2=server2:2016@localhost user:user --difftype=sql --run-all-tests ...
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1answer
556 views

How can I do an incremental `mysqldump` without dropping table?

I'd like to fetch the last 100 rows of a table via a mysqldump, but I already have the rest of the table. How can I only fetch the last 100 rows for a mysqldump and then replace (or overwrite) any ...
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1answer
488 views

MySQL quick database transfer between two servers

I am migrating a reasonably large (18GB) database used for a website from one server to another. There are two tables which make up 95% of that size and they do not have to be fully transferred for ...
3
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1answer
150 views

mysqldump inconsistencies

I'm planning to take a dump of a table with the --single-transaction option enabled. I know that if we execute any DDL statements during the dump process we might get an inconsistent dump. Will the ...
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1answer
2k views

mysqldump not exporting all tables

I have a Drupal site with a fair amount of content, about 12G in size, with 500+ distinct fields making for almost 1400 tables. We're migrating to a new server environment so I need to be able to ...
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2answers
9k views

ERROR 1031 (HY000) at line X: Table storage engine for 'TBL' doesn't have this option

I am trying to import mysqldump into following system: # cat /etc/redhat-release CentOS Linux release 7.2.1511 (Core) # rpm -qa | grep ^mysql mysql-community-libs-compat-5.7.11-1.el7.x86_64 mysql-...
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1answer
103 views

Incorrect backup size

We are storing our everyday full backup in remote storage. Everything seems to be working fine, but every seven day interval the archived folder size is much more than the everyday archived backup ...
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1answer
191 views

How speed up mysql dump without data?

There are a lot of questions (1,2,3) about speed up MySql restoring. But all of them speed up data import. Is there a way to speed up schema tables creation? For example dump iundepended table in ...
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1answer
37 views

Copying mysql data from one db to another with a where clause for a subset of tables

I'd like to be able to move mysql data from one db to another. I only want to move records where account_id=1234 except for tables like account which does not have an account_id column. Is there any ...
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0answers
64 views

MySQL master to slave dump fails when done over SSH pipe

When we need to [re]build a MySQL-5.5 slave, our usual approach is this (CHANGE MASTER TO / START SLAVE omitted for clarity): master$ mysqldump -uroot -p --all-databases --master-data > dump.sql ...
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3answers
3k views

MySQL Database import into 5.7 hangs with CLI or with Workbench 6.3 CE

I have a SQL dump file that I exported using Workbench from a server that is being decommissioned. The host and target OS is Microsoft Windows Server 2008 R2 (therefore is x64 natively). There seems ...
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1answer
840 views

MySQL dump with low disk space

I have an asterisk PBX that has call recordings stored in a SQL database table. This table has 9199 rows and is consuming 21GB on my server. I want to dump the data in this table to restore space on ...
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2answers
145 views

mysqldump not consistent after stopping slave

We have a Mysql master (server A) and slave (server B) setup. I am trying to create one more slave(server C) for master server(A). I have stopped the slave in server B and noted master server(A) ...
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2answers
600 views

Is there a way to create a MySQL/Percona Slave without using a dump?

I haven't been able to find anything so I'm sure the answer is no, what are you, a noob? but I feel the need to ask anyway :) Is there a simple utility that would allow a new slave server to be ...
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1answer
261 views

mysql diff and add diff records into new database

I have two database on two different hosts: host A has database A and table A and host B has database B and table B and now "host A/database A/table A" table A contains records with primary key 1 ...
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1answer
589 views

Between optimizing a 1-billion rows table and dump-restoring it, which would be faster?

Have multiple tables which had more than 1 billion rows. Archived and deleted many of them, now want to recover the disk space. Have option to either optimize the table, or dump the table and restore ...
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1answer
3k views

incompatibility of max_allowed_packet in mysql

I have a client and I want to dump a row such as : $ mysqldump -uroot -p pahlevan_azad mp_posts --where="id='655'" --max-allowed-packet=1024 > dump.sql Warning: option 'max_allowed_packet': ...
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2answers
173 views

Why database size is smaller in RDS

I am trying to move my database from MySQL to RDS MySQL. I do a simple mysqldump to transfer. I use this query: SELECT TABLE_NAME, table_rows, data_length, index_length, round(((data_length + ...
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3answers
236 views

Should a MySQL slave used for backup also be used to service read-only requests in a production environment?

Based on best practices, I'm wondering if we should have at least one slave that's used solely as a backup server, without servicing any forward-facing requests from users. For example, if we have a ...
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1answer
2k views

Slave Waiting to reconnect

I have added new slave host to master for replication, but missing some of the parameters. mysql> show slave status\G *************************** 1. row *************************** ...
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1answer
890 views

Lost connection to mysql while restoring dump. Is it safe to resume?

I was in the process of restoring an sql dump to a newly created RDS mysql instance on AWS. The dump was created with the following command: mysqldump --all-databases \ --single-transaction \ --...
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1answer
99 views

Mysql Replication backup and restoration failed multipal time

I tried restoring MySQL backup several time but unfortunately it gets failed by some or the new reason. I have 2 host Master & Slave with below details. Server1_Master os-centos6.7 mysql- ...
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1answer
1k views

Restoring MySQL dump ERROR 1449

I took hot backup (dump) from my Master MySQL DB with below command mysqldump -uroot -p --skip-lock-tables --single-transaction --flush-logs --hex-blob --master-data=2 -A > ~/dump.sql Master ...
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1answer
677 views

How to import a single table in Windows environment

I am running Windows 7 with xampp. I can easily import a database with the following command: mysql -u user -p database < backup.sql The problem is that I have a database around 8.5 GB, which ...
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0answers
551 views

mysqldump with --skip-grant-tables

It appears the files in my /var/lib/mysql/mysql are borked, and I can only start mysqld with --skip-grant-tables. Now I want to export all tables with mysqldump --all-databases, wipe and reinstall ...
3
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1answer
319 views

missing frm files for restore

We backup a database daily with mysqldump using the following options: --quick --hex-blob --lock-tables --skip-extended-insert --flush-logs --max_allowed_packet=500M Each database gets its own ...
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4answers
39k views

error 2013 (hy000) lost connection to mysql server during query while load of mysqldump

I'm trying to load mysqldump and I keep getting following error: ERROR 2013 (HY000) at line X: Lost connection to MySQL server during query /etc/my.cnf: [mysqld] max_allowed_packet = 16M ...
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0answers
32 views

How to merge MySQL backup files (*.sql) [duplicate]

We have several MySQL backup files of a database in *.SQL format and we want to restore the database by using these files. However, as the sql files contains "DROP TABLE" definitions, running one ...
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2answers
4k views

How to merge MySQL backup files (*.sql)

We have several MySQL backup files of a database in *.SQL format and we want to restore the database by using these files. However, as the sql files contains "DROP TABLE" definitions, running one ...
0
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0answers
69 views

Dreadful encoding issue

I've got several Drupal sites, and all their tables are latin1 and collations are latin1_swedish_ci. Recently, I wanted to shrink my ibdata1 so I proceeded to read this answer and I dropped my tables (...
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1answer
3k views

Mysqldump.exe Unknown option --no-beep

When I try to run the command : "C:\Program Files (x86)\MySQL\MySQL Server 5.6\bin\mysqldump.exe" -u root -p******* my_database > backups/my_database_backup_20151221121320.sql it says mysqldump:...
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1answer
118 views

Move data from mysql 4.0 to 5.6 without corrupting encoding

I have a old mysql database that I would like to move to a recent version of mysql and optimize for SELECT ... WHERE ... statements. It is going to be a SELECT only database. Original database uses ...
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1answer
63 views

Point in time restore MySQL

I want to perform a point in time restore on MySQL. I want to change log_bin value and ensure that log files are created. I am following this article and am working on a Windows platform. Log ...
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3answers
580 views

MySQL for Oracle DBA

I am a newbie to MySQL, but understand Oracle databases well. I need a quick help to understand the architectural differences. Currently I am working on a Windows platform. 1) In Oracle we have to ...
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1answer
491 views

How to reset slave without over write of master dump in mysql

My master having position is File Position mysql-bin.000046 430674598 I lost my data dir of mysql on master after that I have backup of slave which restored in master.Now Both ...
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1answer
3k views

Migrating/Upgrading a MySQL 5.1 schema to MySQL 5.7 schema

I'm bit green on MySQL upgrades, but my question has to do with single schemas (dbs). I have some hosted databases on a server using MySQL 5.1 Community, and I currently use mysqldump to back those ...
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1answer
105 views

Continuously backup/restore selected tables

I'm backing up production data locally to perform experiments and investigate production bugs. I need only a handful of tables from product DB. I'm using generic mysqldump and now facing a problem ...
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1answer
80 views

Restore of database using Mysql DUmp

How would i verify that whatever the backup i have taken is correctly restored or not. EG: I am taking backup on live system where inserts are going on.backup size is around 50 GB.I have started the ...
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2answers
242 views

Unexpected behaviour when got error in the middle of mysqldump backup file import

i am using mysql 5.5.40 version. i am importing a large .sql file having around 36000 lines using a script. The script contains below statements. mysql -uxx -p < dumpfile.sql 2 > error.log cat ...
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0answers
132 views

Taking a mysqldump from a specific point in time

Is there a way I can take mysql dump from a specific point in time until the latest? Let me explain the need of such requirement, maybe someone could suggest a better option: I took a mysqldump (...
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2answers
335 views

How can I generate the code-containing comments like mysqldump?

I'm needing to duplicate the mysqldump command in Python, and I am trying to figure out how automatically generate the code comments like mysqldump generates. If you're wondering why I am doing such ...
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2answers
4k views

How to run mysqldump from windows command prompt

I'm using non-install version of mysql5.1 on Windows. I have placed "mysql" folder under c:\ and it seems to work fine. But when I try C:\>mysql\bin\mysqldump.exe -u root -p mydatabase > c:\>...
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1answer
368 views

FLUSH LOGS command introduces a long sleep

I am using Percona mysql 5.0-92-log on Centos 6.6 final. I have logged in as a privileged user to mysql. If I issue command mysql> FLUSH LOGS; The terminal goes for a long sleep Below is the ...
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1answer
36 views

mysqldump - does it have non-repeatable DMLs?

We are migrating databases using mysqldump, and since this is the first time I'm doing it, I have a couple of questions. If in the middle of mysqldump the utility crashes(for some reason- latest was ...
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1answer
343 views

Is it safe to run parallel innodb single-transaction dumps of individual tables?

I can't seem to find the internals for --single-transaction mysqldump option for InnoDB tables, but is it possible to use --single-transaction for single tables in a parallel dump so that the --single-...
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1answer
2k views

MySQL Dump Restoration when FOREIGN_KEY_CHECKS=0

I currently use a SaaS DBMS. Backups of my database are provided to me in the form of a MySQL dump, and I noticed that FOREIGN_KEY_CHECKS=0. I am annoyed by this because it appears that this dump is ...
2
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1answer
2k views

How to mysqldump to a subset of rows in specific table during a complete backup

I have a database (myDB) that holds some tables. During my backup process I have one of those tables that should be filtered. So I want to backup only a subset of rows inside table1, when I backup the ...
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2answers
2k views

What are the minimum persmission required to restore mysql dump

I'm trying to create a cronjob which will be populating the data on the server from a local machine. What are the best permission which are required to restore mysql Dump I want to restore the dump ...
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3answers
9k views

mysqldump vs mysqlpump

I just heard about mysqlpump - it looks like it was released with MySQL 5.7, however MySQL 5.7 still includes mysqldump. They're both backup programs, but could anyone summarize the main differences? ...