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MySQL Properties Settings

These properties are usually located in the file {MYSQL_HOME}/my.ini.

Property Name

Description

innodb_flush_log_at_trx_commit

Flush the transaction logs at each commit.
Value: It is highly recommended that this option be set to '0' in Windows installations to improve load performance.

innodb_additional_mem_pool_size

Additional memory pool that is used by InnoDB to store metadata information.
Value: 16M

innodb_buffer_pool_size

Buffer pool used to cache both indexes and row data.
Value: 1G (consider going higher based on physical RAM available and full terminology sets might benefit from as high as 14G)

tmp_table_size

Maximum size for internal (in-memory) temporary tables.
Value: 256M

query_cache_size

Query cache is used to cache SELECT results and later return them without actually executing the same query once again.
Value: 64M

sort_buffer_size

This buffer is allocated when MySQL needs to rebuild the index in REPAIR, OPTIMZE, ALTER table statements as well as in LOAD DATA INFILE into an empty table.
Value: 16M

MySQL Properties Guide

There are some commands that we have found useful in the MySQL environment. You can investigate this database software more at the MySQL web site.

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If you have root or administrator access to your server you can change the password for the root user ID if you have forgotten or lost it.

  • mysqladmin -u root password {mypassword}
    ...where mypasswordis your new password

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    titleNote

    MySQL can be passed a JDBC option for the Windows local environment that may improve perfomance 30 to 50%.

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This uses Windows Named Pipe function and avoids use of the TCP/IP protocol. It only works when connecting with a local iteration of the MySQL database on Windows.

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