May 21, 2012

Post: How Percona does a MySQL Performance Audit

… Linux Server release 5.2 (Tikanga) …–log-error=/var/log/mysqld.log mysql 3172 3137 78 Nov19 ? 1fails, then you know from the errorto use a patched binary, we can use MySQL Proxy, packet sniffing, or other techniques to get more information than the slow log… need to really know how to write queries…

Post: SHOW INNODB STATUS walk through

MySQL 5failed foreign key constraint: ———————— LATEST FOREIGN KEY ERRORLOGLog sequence number 84 3000620880 Log flushed up to 84 3000611265 Last checkpoint at 84 2939889199 0 pending log writes, 0 pending chkp writes 14073669 log

Post: Updated msl (microslow) patch, installation walk-through!

mysql-5.0.51a) % su root Password: First you should apply the changes to the database configuration, specifically you need to enable slow logginglogged while doing it only for every n-th of them thus limiting the number of writes to the log. Note: this feature will fail to

Post: Percona Server 5.1.47-rel11.0

log_warning_1592 option to disable logging of error code 1592. Added the –microseconds_in_slow_query_log option to use microsecond precision for the slow query logfails to compile with CFLAGS=-DUNIV_DEBUG #569156 CentOS 5: mysql-server conflicts with MySQL

Post: MySQL Crash Recovery

…system extremely slow and …to use innodb-safe-binlog option in MySQL 4.1 so your Innodb log and binary log are synchronized. In MySQL 5MySQL to fail with wierd error messages. In MySQL 4.1to MySQL Crash Recovery – Restoring data from backup, corrupted Innodb tablespace recovery etc but I should write