Wiki source code of MySQL Tips

Last modified by christoph_lechleitner@iteg_at on 2013-02-08 03.13:19

version	line-number	content
1.1	1	= {{id name="MySQLTips-InstallingandusingMySQLdriverinLinux"/}}Installing and using MySQL driver in Linux =
	2
	3	{{code language="none"}}
	4	apt-get install libmysql-java
	5
	6	jdbc2xml ... --jdbc-drivers /usr/share/java/mysql-connector-java.jar
	7	{{/code}}
	8
	9	= {{id name="MySQLTips-OptimizingINSERTperformance"/}}Optimizing INSERT performance =
	10
	11	Unfortunately mysqld can be quite slow when INSERTing large numbers of rows.
	12
	13	(% style="font-size: 10.0pt;line-height: 13.0pt;" %)We found the hint from (%%)[[this Stackoverflow article>>url:http://stackoverflow.com/questions/6937443/query-end-step-very-long-at-random-times\|\|style="font-size: 10.0pt;line-height: 13.0pt;" shape="rect"]] quite effective:
	14
	15	The ##[[innodb_flush_log_at_trx_commit>>url:http://dev.mysql.com/doc/refman/5.1/en/innodb-parameters.html#sysvar_innodb_flush_log_at_trx_commit\|\|shape="rect"]]## setting should be set to 2 (in the {{code language="none"}}[mysqld]{{/code}} section of {{code language="none"}}my.cnf{{/code}}):
	16
	17	{{code language="none"}}
	18	[mysqld]
	19	# ...
	20	innodb_flush_log_at_trx_commit = 2
	21	{{/code}}
	22
	23	Unfortunaltely the MySQL server has to be restarted for this change to take effect.
	24
	25

Wiki source code of MySQL Tips﻿﻿