mysqldump slowing down the process?

9 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Need Help with automatically Import from special mysqldump

Hi @ all I need a little bit help with a tricky problem ... Here�s the situation: We�ve 2 MySQL-Servers, one is productive, the other is Backup. At the productive Server there runs every 2 hours a cron Job which does a Dump from MySQL-DB with script 'automysqlbackup.sh' and copy it then...

2. UNIX for Advanced & Expert Users

awk slowing down -- why?

I have an awk script that extracts data from log files and generates a report. The script is incrementing elements in arrays, summing fields depending on contents of other fields, and then in END performing some operations on those arrays. It seemed to be taking longer than it should on my...

3. Shell Programming and Scripting

Mysqldump rotate backup

I have a very simple script that uses a cron job to take a daily backup of our orders database. echo "Dumping ORDERS database"; mysqldump -u root --password='mypassword' -h '1.1.1.1' --opt --compress ORDERS $tbl_names > /Volumes/Files_Backup_1/db_backups/orders.sql echo "Copied database to...

4. Shell Programming and Scripting

Expect slowing down / missing characters

Im writing an expect program to connect to cisco routers and run commands. my commands file has only two entries show version show running-config when I run the script, the first command is run without a problem. The second command isn't. The "s" is missing at the device command line,...

5. UNIX for Dummies Questions & Answers

Mysqldump certain tables

Hi, I have to upload part of my database periodically when i make changes to product data etc. However I only want to upload certain tables. We suffer from bandwidth chock here, so i want to write a couple of separate scripts that upload parts of the database that changed. The database is large...

6. UNIX for Dummies Questions & Answers

Sendmail process "Toomany" system slowing down

Hello Experts I have M4000 Solaris 10 server, from few many days there are too many sendmail and mail.local process starting on server and each time i need to kill mannualy using pkill send mail, some time there will 600 of them taking 30mb memory for each and hence slowing down the server,...

7. UNIX for Dummies Questions & Answers

Problem with my crontab file, using mysqldump

My crontab file tells cron to run a certain shell script at 10:30 AM every day. The shell script backs up my database with mysqldump and then runs a sed script that does some editing of the backup file. I have programmed the shell script to write an error message to a file I have in my home...

8. Shell Programming and Scripting

Help needed for mysqldump command

I want to take a backup of a database and redirect the output of the whole process to a log file. I am using the below command: mysqldump -A --add-drop-table > mysql-daily-backup.sql &> /tmp/backup_log/mysql.log Is there anything wrong with the syntax? ---------- Post updated at 08:32 PM...

9. Shell Programming and Scripting

mysqldump script without hardcode password

OS: Linux ambglx02 2.6.16.60-0.21-default #1 Tue May 6 12:41:02 UTC 2008 i686 i686 i386 GNU/Linux Shell: bash Currently I have a mysqldump script to backup my mysql database, the command is as below: /opt/novell/mysql/bin/mysqldump --add-drop-table -u root -p -h mydb > /home/john/mydb.sql ...

LEARN ABOUT PHP

mysql_unbuffered_query

MYSQL_UNBUFFERED_QUERY(3)						 1						 MYSQL_UNBUFFERED_QUERY(3)

mysql_unbuffered_query - Send an SQL query to MySQL without fetching and buffering the result rows.

SYNOPSIS

       Warning

	      This  extension  is deprecated as of PHP 5.5.0, and will be removed in the future. Instead, the MySQLi or PDO_MySQL extension should
	      be used. See also MySQL: choosing an API guide and related FAQ for more information. Alternatives to this function include:

		     oSee: Buffered and Unbuffered queries

       resource mysql_unbuffered_query (string	$query, [resource  $link_identifier = NULL])

DESCRIPTION

       mysql_unbuffered_query(3) sends the  SQL  query	$query	to  MySQL  without  automatically  fetching  and  buffering  the  result  rows	as
       mysql_query(3)  does. This saves a considerable amount of memory with SQL queries that produce large result sets, and you can start working
       on the result set immediately after the first row has been retrieved as you don't have to wait until the complete SQL query has	been  per-
       formed.	To use mysql_unbuffered_query(3) while multiple database connections are open, you must specify the optional parameter $link_iden-
       tifier to identify which connection you want to use.

	      o $query
		- The SQL query to execute.  Data inside the query should be properly escaped.

	      o $
		link_identifier -The MySQL connection. If the link identifier is not specified,  the  last  link  opened  by  mysql_connect(3)	is
		assumed. If no such link is found, it will try to create one as if mysql_connect(3) was called with no arguments. If no connection
		is found or established, an E_WARNING level error is generated.

	For SELECT, SHOW, DESCRIBE or EXPLAIN statements, mysql_unbuffered_query(3) returns a resource on success, or FALSE on error.

	For other type of SQL statements, UPDATE, DELETE, DROP, etc, mysql_unbuffered_query(3) returns TRUE on success or FALSE on error.

       Note

	       The benefits of mysql_unbuffered_query(3) come at a cost: you cannot use mysql_num_rows(3) and mysql_data_seek(3) on a  result  set
	      returned	from  mysql_unbuffered_query(3), until all rows are fetched. You also have to fetch all result rows from an unbuffered SQL
	      query before you can send a new SQL query to MySQL, using the same $link_identifier.

       mysql_query(3).

PHP Documentation Group 												 MYSQL_UNBUFFERED_QUERY(3)

UNIX for Advanced & Expert Users