June 19, 2013

Comment: Choosing innodb_buffer_pool_size

… unknown reason… the crash recovery takes to nothing. Disks were raid 5 and we did a raid data recovery for him. Quite… + all the db folders and a simple “mysqld –innodb_log_file_size=xxxxxxxxx –innodb_force_recovery=6″ (where xxxxxxxxx is the phisical size in… system). Can this be the reason for a failed crash recovery? Our server is similar. Thank you for any tip and…

Post: Connecting orphaned .ibd files

…. ibdata1 is erroneously removed 2. ibdata1 is heavily corrupted and innodb_force_recovery doesn’t help Chris Calender suggests two methods. The first… modify SPACE in InnoDB dictionary. MySQL must be stopped at this point. There is a tool ibdconnect in Percona InnoDB Recovery Tool. Make…

Comment: MySQL on Amazon RDS part 2: Determining Peak Throughput

…_commit 1 innodb_flush_method O_DIRECT innodb_force_recovery 0 innodb_io_capacity 200 innodb_lock_wait_timeout 50 innodb_locks_unsafe_for_binlog OFF innodb_log_buffer_size 8388608 innodb_log…

Post: Announcing Percona Server for MySQL version 5.1.67-14.4

… in start up errors. Fixed by renaming the innodb_changed_pages_limit option to innodb_max_changed_pages. Bug fixed #1105726 (Laurynas… (Laurynas Biveinis). XtraDB changed page tracking wasn’t compatible with innodb_force_recovery=6. When starting the server log tracking initialization would fail…

Post: Announcing Percona Server for MySQL version 5.5.29-30.0

… in start up errors. Fixed by renaming the innodb_changed_pages_limit option to innodb_max_changed_pages. Bug fixed #1105726 (Laurynas… (Laurynas Biveinis). XtraDB changed page tracking wasn’t compatible with innodb_force_recovery=6. When starting the server log tracking initialization would fail…

Post: Data Corruption, DRBD and story of bug

… is corrupt. InnoDB: You may need to dump your InnoDB tables and recreate the whole InnoDB: database! Trash state means that InnoDB won’t start, and you need to use innodb_force_recovery=3 and mysqldump your data. What makes problem even worse is that InnoDB

Comment: When is it a time to upgrade memory ?

… default-storage-engine=InnoDB bulk_insert_buffer_size=8M # Innobd Tuning #innodb_force_recovery=2 innodb_thread_concurrency=2 innodb_file_per_table=1 innodb_doublewrite=0… buffer pool size innodb_log_group_home_dir = /mnt/log_mysql innodb_log_file_size=1G innodb_log_buffer_size=64M innodb_flush_log…

Comment: How to change innodb_log_file_size safely

… 19:19:58 mysqld: InnoDB: is in the future! Current system log sequence number 0 3177053196. Parameter ‘innodb_fast_shutdown’ has NOT…). Of course I was able to start the server with “innodb_force_recovery=5″ and probably (will not test it today anymore) would… final note (my personal view on this topic): Never change innodb_log_file_size in a running production system with no…

Comment: How long is recovery from 8G innodb_log_file

… optimize is the rollback performance in general (not just during recovery). It is a worst-case kind of scenario that can… than going through some really undesirable procedures with restarts and innodb_force_recovery.

Comment: Connecting orphaned .ibd files

… from the future: 111108 3:29:15 InnoDB: Error: page 1023735 log sequence number 34414181181 InnoDB: is in the future! Current system log sequence number 14824393635. Just run mysqld with innodb_force_recovery=[456] and take…