June 19, 2013

Post: Migrating between MySQL schemas with Percona Xtrabackup

for this, but can quite slow on larger schemas. One of the downsides to mysqldump is the need to scan the full tables…, you have a consistent binary backup at a…TABLE `’, table_name, ‘` IMPORT TABLESPACE;’) AS _ddl FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA=’orig’ AND ENGINE=’InnoDB‘; EOF For

Post: MySQL Backup tools used by Percona Remote DBA for MySQL

… blog post. Mydumper for logical backups Strong Points: Very fast for logical backups – compared to mysqldump Consistent backups between myisam and innodb tables. Global read lock only held until myisam tables are dumped. We…

Post: Best kept MySQLDump Secret

Many people use mysqldump –single-transaction to get consistent backup for their Innodb tables without making database read only. In most cases it works, … know the potential cause for it. What are potential solutions for this problem ? you can use mysqldump –lock-all-tables instead which does not…

Comment: How much space does empty Innodb table take ?

Innodb tables and finding that the mix of federated and innodb makes any attempt at reporting on innodbconsistently and completely broken. I’ve tried to dump the entire set of databases with triggers and functions (-R) to search for

Post: 10 things you need to know about backup solutions for MySQL

…pollution, etc? What technique is used for the backup? Is it mysqldump or a custom product that… up InnoDB by simply copying its files? Does the backup use FLUSH TABLES, LOCK TABLES, or FLUSH TABLES…? How does the system guarantee consistency with the binary log, InnoDB logs, and replication? Can you …

Comment: An argument for not using mysqldump

…just running innodb, you can run mysqldump with the –singletransaction flag which will get you a consistent logical backup….way to get a “hot” consistent dump. You can issue flush tables with read lock, but to do… You’re locked up for flush time + snap time. If you’re pure innodb, I generally trust …

Comment: Faster MySQL failover with SELECT mirroring

…only three ways to get a consistent backup of myisam suitable for a replication seed. Maybe one of… use mysqldump with the lock all tables option (this is an outage) 3) if you’re using LVM, FLUSH TABLES…a large number of myisam tables that we’re seriously considering moving to innodb; myisam has a lot…

Comment: Test Drive of Solid

Innodb sense not in ANSI Sense. This Will look like double bug to most MySQL/Innodb users. Most applications written for MySQL/Innodb rely… MySQL tools rely on it. Ie mysqldump –single-transaction is used to dump transactional tables in consistent snapshot using repeatable-read isolation. This…