June 20, 2013

Comment: How to calculate a good InnoDB log file size

…/ib_logfile* && date && mysql -BNe’show engine innodb status\G’ | grep sequence && sleep 60 && date && mysql -BNe’show engine innodb status\G’ | grep sequence && ls -l… far cheaper in modern versions of InnoDB: https://blogs.oracle.com/mysqlinnodb/entry/innodb_recovery_is_now_faster And from the…

Post: Choosing a MySQL HA Solution - Post-Webinar Q&A

… available for viewing over at percona.com. My apologies if we weren’t … if you use the BLACKHOLE storage engine) in between the actual master and … plenty of other MySQL and OS-level status variables that you might want to …-running queries in the output of SHOW PROCESSLIST that might be a sign …

Post: Ultimate MySQL variable and status reference list

Com_show_databasesblogpercona.commanual Com_show_engine_logsblogpercona.commanual Com_show_engine_mutexblogpercona.commanual Com_show_engine_statusblogpercona.commanual Com_show_errorsblogpercona.commanual Com_show_eventsblogpercona.commanual Com_show_fieldsblogpercona.commanual Com_show…_status_…

Comment: MySQL Server Memory Usage

…’ ‘Com_show_ndb_status‘, ’0′ ‘Com_show_new_master’, ’0′ ‘Com_show_open_tables’, ’0′ ‘Com_show_privileges’, ’0′ ‘Com_show_processlist’, ’20′ ‘Com_show_slave_hosts’, ’61′ ‘Com_show_slave_status‘, ’13834′ ‘Com_show_status‘, ’194766′ ‘Com_show_storage_engines‘, ’0′ ‘Com_show_tables’, ’2842′ ‘Com_show_variables’, ’176825′ ‘Com_show_warnings…

Post: Announcing Percona XtraDB Storage Engine: a Drop-in Replacement for Standard InnoDB

…, so you can always learn what your engine can do. documentation Improvements to SHOW INNODB STATUS. We’ve added more memory information and… buffer_pool pages. documentation Documentation is on http://www.percona.com/docs/wiki/percona-xtradb:start. Percona XtraDB available : * in source…

Post: INFORMATION_SCHEMA tables in the InnoDB pluggable storage engine

…written about the new InnoDB pluggable storage engine, which Innobase released at the MySQL conference last…INFORMATION_SCHEMA tables that show some status information about InnoDB. Here are the tables: mysql> SHOW TABLES FROM … manual is being maintained on www.innodb.com, not as part of the regular …

Post: Percona XtraDB Cluster reference architecture with HaProxy

…:19 Percona XtraDB (http://www.percona.com) 1.1.8-rel25.3 started; … have a 3 node cluster. mysql> show global status like ‘wsrep_cluster_size’; +——————–+——-+ | Variable_name | Value | …–test=oltp –db-driver=mysql –mysql-engine-trx=yes –mysql-table-engine=innodb –mysql-host=127.0…

Post: Heikki Tuuri answers to Innodb questions, Part II

…only recently found and fixed: http://bugs.mysql.com/bug.php?id=29560 Concerning a switch to…. I have assigned Inaam as the InnoDB scalability engineer. We do not have much resources for scalability … or not showed up in “show innodb status”. select * from table where id=5 show innodb status: Hash…

Post: Disaster: MySQL 5.5 Flushing

… there couple numbers to look into. If you take “SHOW ENGINE INNODB STATUS“, look into following sections: Log flushed up to 135550126707 Last… spinning disks (as in this case), Percona Server may not show significant improvement. I am going to followup with results on… you may hear in this case from the Oracle/MySQL engineers is to decrease “innodb_max_dirty_pages_pct”, this way…

Post: Making replication a bit more reliable

… about backup and you can execute SHOW SLAVE STATUS command you can get reliable information about…was taken from TransactionalReplication http://code.google.com/p/google-mysql-tools/wiki/TransactionalReplication … exclusively to InnoDB storage engine, case with mix of storage engines is much more …