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Restore mysql db
I am restoring mysql db which has more then 300000 records it toke a lot of time when using import option mysqldump is there any fastest way to restore mysql db? Please help me solve the pronlem. Archana AJ Anant S.Adil š¦š« r1c5 david chongo David F. Rose JĪĪĪ šØš©š MCGAmedCoder gamerArtist
5 Answers
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You definitely need to change the following
innodb_buffer_pool_size = 4G
innodb_log_buffer_size = 256M
innodb_log_file_size = 1G
innodb_write_io_threads = 16
innodb_flush_log_at_trx_commit = 0
Why these settings ?
innodb_buffer_pool_size will cache frequently read data
innodb_log_buffer_size : Larger buffer reduces write I/O to Transaction Logs
innodb_log_file_size : Larger log file reduces checkpointing and write I/O
innodb_write_io_threads : Service Write Operations to .ibd files. According to MySQL Documentation on Configuring the Number of Background InnoDB I/O Threads, each thread can handle up to 256 pending I/O requests. Default for MySQL is 4, 8 for Percona Server. Max is 64.
innodb_flush_log_at_trx_commit
In the event of a crash, both 0 and 2 can lose once second of data.
The tradeoff is that both 0 and 2 increase write performance.
I choose 0 over 2 because 0 flushes the InnoDB Log Buffer to the Transaction Logs (ib_logfile0, ib_logfile1) once per second, with or without a commit. Setting 2 flushe
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Hadia š¦š« 30000 is not much data. Btw how much time it is taking?
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Hadia š¦š«find your mysql cnf file - Most probably located in /etc/mysql/
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Thanks AJ Anant sorry the number of rows is 300000 and it takes up to 40 minutes to complete
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Mr S.Adil š¦š« where can I change these values?