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Tracing a Slow MySQL Query
Post 302357354 by Neo on Wednesday 30th of September 2009 05:09:37 AM
09-30-2009
Administrator
Quote:
But it is better to search for an update first before modifying code. The chances are that it has already been fixed; so first we search for updates, talk to the developer, then if that does not give the results we need, we modify the code.
Cheers.
PS: For the first query, we have not seen any slow queries since I installed the latest version. I will continue to monitor the log. Looks better so far.
---------- Post updated 2009-09-30 at 09:09 ---------- Previous update was 2009-09-29 at 16:03 ----------
Great! No slow queries at all since I upgraded that "troublesome" vB plugin
If this continues I will tweek my.cnf from
Code:
long_query_time = 5
Code:
long_query_time = 4
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LEARN ABOUT DEBIAN
cvm-mysql
cvm-mysql(8) System Manager's Manual cvm-mysql(8) NAME
cvm-mysql - MySQL module SYNOPSIS
cvm-mysql CREDENTIALS
Pass phrase DESCRIPTION
This module queries a MySQL database for the account name, compares the stored pass phrase with the given one using crypt(3). CONFIGURATION VARIABLES
CVM_MYSQL_DEFAULT_FILE The full path of the defaults file to read if the following variable is set. If not set, the file $HOME/.my.cnf will be read (the MySQL default). CVM_MYSQL_DEFAULT_GROUP If set, the module will read connection default options from the named group in the defaults file as above CVM_MYSQL_HOST The hostname or IP of the MySQL server. If not set, a connection to the local host is assumed. CVM_MYSQL_USER The MySQL login ID to connect as. If not set, the invoking user is assumed. CVM_MYSQL_PASS The password for the above user. CVM_MYSQL_DB The database name, must be set. CVM_MYSQL_PORT The port number for the TCP/IP connection (only used if the server is not local). CVM_MYSQL_POSTQ (optional) The SQL query to execute after the credentials have been validated, see cvm-sql(7). CVM_MYSQL_PWCMP (optional) The password comparison module to use. CVM_MYSQL_SOCKET The path to the socket that should be used for connections to a local server. CVM_MYSQL_QUERY (optional) The SQL query to issue to retrieve the row containing the account information from the database, see cvm-sql(7). SEE ALSO
cvm-sql(7), cvm-pgsql(8), cvm-pwfile(8), cvm-qmail(8), cvm-unix(8), cvm-vmailmgr(8), cvm-benchclient(8), cvm-checkpassword(8), cvm-test- client(8) http://untroubled.org/pwcmp/pwcmp.html http://untroubled.org/cvm/cvm.html cvm-mysql(8)