…5 MB InnoDB: Database physically writes the file full: wait… InnoDB: The log sequence number in ibdata files does not match InnoDB: the log sequence number… half-written data pages from the doublewrite InnoDB: buffer… 120502 11:51:16 InnoDB: Started; log sequence number 119 647537164 1120502 11:…
Comment: How to recover a single InnoDB table from a Full Backup
March 22, 2012 By 7 Comments
… have been detected. InnoDB: Progress in %: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15… 4:38:52 InnoDB: Error: page 0 log sequence number 6094071743825 InnoDB: is in the future! Current system log sequence number 6087296438643. InnoDB: Your database may be corrupt or you may have copied the InnoDB InnoDB: tablespace but not the InnoDB log…
Post: MVCC: Transaction IDs, Log Sequence numbers and Snapshots
December 19, 2007 By 3 Comments
…Log Sequence Number (LSN) Log Sequence Numbers correspond to given position in the log files and typically incremented for each log record. Innodb uses number… you do not know which dirty pages were flushed from the buffer pool)….given row is something like: Value 5 created by transaction 100 Value 4…
Post: The relationship between Innodb Log checkpointing and dirty Buffer pool pages
February 17, 2012 By 5 Comments
… LOG — Log sequence number 9682004056 Log flushed up to 9682004056 Last checkpoint at 9682002296 This shows us the virtual head of our log (Log sequence Number), …5.5 setting that tries to be smarter about flushing more aggressively based on the number of dirty pages and the rate of transaction log…
Comment: Connecting orphaned .ibd files
November 8, 2011 By 12 Comments
… 111108 3:29:15 InnoDB: Error: page 1023743 log sequence number 30042909687 InnoDB: is in the future! Current system log sequence number 14824393635. InnoDB: Your database may…/doc/refman/5.5/en/forcing-innodb-recovery.html InnoDB: for more information. 111108 3:29:15 InnoDB: Error: page 1023735 log sequence number 34414181181 InnoDB…
Post: MySQL 5.5.8 - in search of stability
January 3, 2011 By 11 Comments
… for the other tests I used Percona Server based on 5.5.8. Addressing a complaint to my previous post, I am… space in innodb_log_file corresponds to changed pages in the buffer pool. You can compute this value as Log sequence number – Last checkpoint at… MySQL 5.5.8 by tuning innodb_max_dirty_pages_pct and innodb_io_capacity; but the limiting factor is still innodb_log_file…
Comment: How to change innodb_log_file_size safely
November 8, 2011 By 14 Comments
… am running MySQL 5.1 on Debian Squeeze 6.0. And I can tell you that changing innodb_log_file_size does… InnoDB: Error: page 23008 log sequence number 0 3522050451 Nov 8 19:19:58 mysqld: InnoDB: is in the future! Current system log sequence number 0 3177053196… was able to start the server with “innodb_force_recovery=5” and probably (will not test it today anymore) would be…
Comment: Connecting orphaned .ibd files
May 13, 2011 By 12 Comments
… your promising tool and imported an .ibd file from 5.1.31 to 5.1.51 under debian. Each step was OK…: Error: page 3 log sequence number 20 1214354523 May 16 14:19:30 debian mysqld: InnoDB: is in the future! Current system log sequence number 0 56436… the InnoDB log files. See May 16 14:19:30 debian mysqld: InnoDB: http://dev.mysql.com/doc/refman/5.1/en…
Post: SHOW INNODB STATUS walk through
July 17, 2006 By 40 Comments
…kinds of other things. In MySQL 5 number of Innodb performance counters were …log sequences can’t be overwritten in log files. By monitoring log sequence number and value up to which logs… total number of pages in buffer pool, number of pages free, pages allocated by database pages and dirty pages….
Post: How to estimate time it takes Innodb to Recover ?
May 9, 2007 By 7 Comments
…log sequence number up to which all modifications are already reflected in the database. Changes which have longer log sequence number…log records in the log file (which is circular). Size of log records While we speak about log file size it is number of page… transactions. As MySQL 5.0 these seems…
