… and information. I just made the MySQL, apache2 and php updates available to Debian Squeeze avalable on DotDeb.org, and I… (in terms of qps) with the last two or three minor updates since the end of last year; shortly after Oracle took it… everyone? Have some updates made to INNOdb tables really slowed down mySQL as measured by qps, in the last 4-6 months? Best…
Post: Percona welcomes Drizzle 7.1
April 10, 2012 By Leave a Comment
… ZeroMQ plugin Log output to syslog is enabled by default Updated DEB and RPM packages Query log plugin and auth_schema…) Some of the Percona InnoDB patches have been merged Since Drizzle 7.0 (which was released last year), there have been over…
Post: When Does InnoDB Update Table Statistics? (And When It Can Bite)
October 6, 2011 By 5 Comments
… up on slow query log until InnoDB again updates the statistics. But when does InnoDB perform the updates aside from the first opening of…[user1] @ [172.20.6.1] # Thread_id: 10140441 Schema: db1 Last_errno: 0 Killed: 0 # Query_time: 12.277786 Lock_time… Server with the variable innodb_stats_auto_update (from MySQL Community 5.1.17 a similar variable exist called innodb_stats_on_metadata…
Post: Missleading Innodb message on recovery
February 15, 2010 By 2 Comments
… years ago the feature of Innodb to store copy of master’s position in Slave’s Innodb tablespace got broken. There is… Patches) InnoDB: In a MySQL replication slave the last master binlog file InnoDB: position 0 10000000, file name mysql-bin.005000 InnoDB: Last MySQL binlog… this master. What is going on ? The thing is Innodb does not update this information any more however if it is stored…
Post: SHOW INNODB STATUS walk through
July 17, 2006 By 40 Comments
…; asc a ;; *** WE ROLL BACK TRANSACTION (2) For last deadlock Innodb shows transactions which caused deadlocks, their state during deadlock, …be “fetching rows”, “updating” and couple of other values. “Thread declared inside InnoDB 400″ means thread is running inside Innodb kernel and …
Post: Connecting orphaned .ibd files
May 13, 2011 By 12 Comments
… VARCHAR(45) NOT NULL, last_name VARCHAR(45) NOT NULL, last_update TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP, PRIMARY KEY (actor_id), KEY idx_actor_last_name (last_name) )ENGINE=InnoDB DEFAULT…
Post: Ultimate MySQL variable and status reference list
January 8, 2011 By 4 Comments
…innodb_change_bufferingblogpercona.commanual innodb_checksumsblogpercona.commanual innodb_commit_concurrencyblogpercona.commanual innodb_concurrency_ticketsblogpercona.commanual innodb_data_file_pathblogpercona.commanual Innodb_data_fsyncsblogpercona.commanual innodb…updatable…
Post: The perils of InnoDB with Debian and startup scripts
January 28, 2009 By 13 Comments
… | select … | 6344 | user | | NULL | 6345 | user | Updating | update … | 6346 | user | Sorting result | insert … | 6351 …INNODB STATUS: ===================================== 090128 8:29:03 INNODB MONITOR OUTPUT ===================================== Per second averages calculated from the last…
Post: The relationship between Innodb Log checkpointing and dirty Buffer pool pages
February 17, 2012 By 5 Comments
… into Innodb updates buffer pool pages in memory and records page operations in the transaction (redo) log. Behind the scenes those updated (dirty…: — LOG — Log sequence number 9682004056 Log flushed up to 9682004056 Last checkpoint at 9682002296 Max checkpoint age 108005254 Checkpoint age target…
Post: How to estimate time it takes Innodb to Recover ?
May 9, 2007 By 7 Comments
…you better to understand how Innodb recovery works. When Innodb recovers from logs it finds the last checkpoint time. Innodb has fuzzy checkpointing and…application was well optimized to accumulate updates in the cache and so having pretty scattered updates instead updating view counter for popular …
