Error Log File /var/lib/mysql/ib_logfile0 Is Of Different Size
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Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and what is ib_logfile0 policies of this site About Us Learn more about Stack Overflow the set global innodb_fast_shutdown=0 company Business Learn more about hiring developers or posting ads with us Server Fault Questions Tags Users Badges Unanswered ib_logfile0 delete Ask Question _ Server Fault is a question and answer site for system and network administrators. Join them; it only takes a minute: Sign up Here's how it works: Anybody can [error] fatal error: can't open and lock privilege tables: table 'mysql.host' doesn't exist ask a question Anybody can answer The best answers are voted up and rise to the top InnoDB: Error: log file ./ib_logfile0 is of different size up vote 74 down vote favorite 21 I just added the following lines in /etc/mysql/my.cnf after I converted one database to use InnoDB engine. innodb_buffer_pool_size = 2560M innodb_log_file_size = 256M innodb_log_buffer_size = 8M innodb_flush_log_at_trx_commit = 2
Ib_logfile Location
innodb_thread_concurrency = 16 innodb_flush_method = O_DIRECT But it raise "ERROR 2013 (HY000) at line 2: Lost connection to MySQL server during query" error restarting mysqld. And mysql error log shows the following InnoDB: Error: log file ./ib_logfile0 is of different size 0 5242880 bytes InnoDB: than specified in the .cnf file 0 268435456 bytes! 100118 20:52:52 [ERROR] Plugin 'InnoDB' init function returned error. 100118 20:52:52 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed. 100118 20:52:52 [ERROR] Unknown/unsupported table type: InnoDB 100118 20:52:52 [ERROR] Aborting So I commented out this line # innodb_log_file_size = 256M And it restarted mysql successfully. I wonder what's the "5242880 bytes of log file" showed in mysql error? It's the first database on InnoDB engine on this server so when and where is that log file created? In this case, how can I enable innodb_log_file_size directive in my.cnf? EDIT I tried to delete /var/lib/mysql/ib_logfile0 and restart mysqld but it still failed. It now shows the following in error log. 100118 21:27:11 InnoDB: Log file ./ib_logfile0 did not exist: new to be created InnoDB: Setting log file ./ib_logfile0 size to
Resize MySQL Innodb Log Files Without Errors June 10, 2014 by Andy Hayes 2 Comments Upon installing MySQL, the default innodb log file size is 5MB. This might be fine
[error] Plugin 'innodb' Init Function Returned Error.
for a lot of servers but should you want to resize it, it is change innodb log file size not simply a case of changing innodb_log_file_size to the new size and restarting MySQL. MySQL will not start and produce error log 5242880 bytes in mb output similar to the following: 140610 20:09:14 InnoDB: The InnoDB memory heap is disabled 140610 20:09:14 InnoDB: Mutexes and rw_locks use GCC atomic builtins 140610 20:09:14 InnoDB: Compressed tables use zlib 1.2.3.4 140610 http://serverfault.com/questions/104014/innodb-error-log-file-ib-logfile0-is-of-different-size 20:09:14 InnoDB: Initializing buffer pool, size = 128.0M 140610 20:09:14 InnoDB: Completed initialization of buffer pool InnoDB: Error: log file ./ib_logfile0 is of different size 0 5242880 bytes InnoDB: than specified in the .cnf file 0 67108864 bytes! 140610 20:09:14 [ERROR] Plugin 'InnoDB' init function returned error. 140610 20:09:14 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed. 140610 20:09:14 [ERROR] Unknown/unsupported storage engine: InnoDB 140610 http://dbadiaries.com/how-to-resize-mysql-innodb-log-files-without-errors 20:09:14 [ERROR] Aborting 140610 20:09:14 [Note] /usr/sbin/mysqld: Shutdown complete MySQL will not start because the configured value in my.cnf is not the same as the current log file size. How to safely adjust Innodb log file size (Example demonstrated on a Ubuntu 12.04LTS instance) 1/ Make sure that innodb_fast_shutdown is NOT configured as 2 You may suffer data loss if this is the case. Change to either 0 or 1. Setting as 0 will take longer to shutdown the server so 1 is preferred. Check out more information on this at this link SHOW VARIABLES LIKE 'innodb_fast_shutdown' Change to 1 to perform a fast shutdown SET GLOBAL innodb_fast_shutdown=1; 2/ Safely stop the MySQL service checking for issues Stop MySQL and check the log file as defined in my.cnf by the variable "log_error" for any issues. example :- log_error = /var/log/mysql/error.log You want to see a nice clean shutdown service mysql stop Check the log, it should show a good, error free shutdown… tail -10 /var/log/mysql/error.log 140610 20:19:44 [Note] /usr/sbin/mysqld: Normal shutdown 140610 20:19:44 [Note] Event Scheduler: Purging the queue. 0 events 140610 20:19:44 InnoDB: Starting shutdown... 140610 20:19:44 InnoDB: Shutdown completed; log sequence number 1595685 140610
File is of Different Size Tweet There may be times where you will have to adjust the size of MySQL InnoDB log files to increase performance and stability, but take caution when you do, otherwise you will end up in a world of http://melikedev.com/2011/08/09/mysql-innodb-error-log-file-different-size-change-safely/ hurt. If you change the size of the log file and attempt to restart and get a "InnoDB: Error: log file ./ib_logfile0 is of different size 0 5242880 bytes" error message, you will need to follow the steps outlined @ http://dba.stackexchange.com/questions/1261/how-to-safely-change-mysql-innodb-variable-innodb-log-file-size http://www.mysqlperformanceblog.com/2011/07/09/how-to-change-innodb_log_file_size-safely/ to ensure no data loss or corruption. Tweet MySQL This entry was posted by Mike Purcell on August 9, 2011 at 7:43 am, and is filed under MySQL. Follow any responses to this post through RSS 2.0.You can leave log file a response or trackback from your own site. Comments (2) Related Posts #1 written by Eric 4 years ago I have installed mysql-5.5.24-osx10.6-x36.pkg MySQLStartupItem.pkg on OSX 10.6.8. I have not created any my.cnf, because I want the defaults used. Yet I am getting error: InnoDB: Error: log file ./ib_logfile0 is of different size 0 268435456 bytes InnoDB: than specified in the .cnf file 0 5242880 bytes! Any suggestions would be appreciated. -Eric Quote #2 written by Mike Purcell 4 years error log file ago @Eric: I've run into this situation before, if you follow the guidelines outlined here you should be able to start your mysql service. The only change I would make is that instead of deleting the files, just move them into a temp (/tmp) directory in case you need to revert the change. Quote + six = 10 Type your comment You may use these HTML tags:
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log in tour help Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Database Administrators Questions Tags Users Badges Unanswered Ask Question _ Database Administrators Stack Exchange is a question and answer site for database professionals who wish to improve their database skills and learn from others in the community. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top How to safely change MySQL innodb variable 'innodb_log_file_size'? up vote 75 down vote favorite 44 So I'm fairly new to tuning InnoDB. I'm slowly changing tables (where necessary) from MyIsam to InnoDB. I've got about 100MB in innodb, so I increased the innodb_buffer_pool_size variable to 128MB: mysql> show variables like 'innodb_buffer%'; +-------------------------+-----------+ | Variable_name | Value | +-------------------------+-----------+ | innodb_buffer_pool_size | 134217728 | +-------------------------+-----------+ 1 row in set (0.00 sec) When I went to change the innodb_log_file_size value (example my.cnf on mysql's innodb configuration page comments to change the log file size to 25% of the buffer size. So now my my.cnf looks like this: # innodb innodb_buffer_pool_size = 128M innodb_log_file_size = 32M When I restart the server, I get this error: 110216 9:48:41 InnoDB: Initializing buffer pool, size = 128.0M 110216 9:48:41 InnoDB: Completed initialization of buffer pool InnoDB: Error: log file ./ib_logfile0 is of different size 0 5242880 bytes InnoDB: than specified in the .cnf file 0 33554432 bytes! 110216 9:48:41 [ERROR] Plugin 'InnoDB' init function returned error. 110216 9:48:41 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed. So my question: Is it safe to delete the old log_files, or is there another method to change the innodb_log_file_size variable? mysql innodb share|improve this question asked Feb 16 '11 at 15:01 Derek Downey 15.8k74885 1 Just comment the innodb_log_file_size in my.ini ..... –user3988 Oct 20 '11 at 13:24 3 hmm, why would I want to comment it out to use the default value when I'm trying to