Mysqldump certain tables Post: 302743073

Sponsored Content

Top Forums UNIX for Dummies Questions & Answers Mysqldump certain tables Post 302743073 by timgolding on Wednesday 12th of December 2012 05:40:47 AM

12-12-2012

Registered User

Thanks, i wondered while i was in bed do i really need to create a smaller version of the database on the development server before i upload or would it be better to just dump remotely from the live server. i want the upload to be smooth to reduce any downtime when i do the upload. So i came up with this (ignore the drop database i will change it when i reverse engineer your script)

Code:

# I'll alter this once i understand your script.

mysqladmin -u root --password='mypassword' --socket=/tmp/mysql.sock drop DATABASE_TEMP
mysqladmin -u root --password='mypassword' --socket=/tmp/mysql.sock create DATABASE_TEMP

# Dump a smaller version of the database with compression

mysqldump -u MOVE1 --password='mypassword' -h '107.701.107.701' --opt --compress DATABASE TABLE1 TABLE2 TABLE3 | mysql --socket=/tmp/mysql.sock -u root --password='mypassword' DATABASE_TEMP
echo "temporary database successfully created"

# copy contents of temp database to the live version. Happens quickly and reduces downtime
for table in TABLE1 TABLE2 TABLE3
do
echo "moving data from $table"
mysql --socket=/tmp/mysql.sock -u root --password='mypassword' <<QUERY_INPUT
use DATABASE;
TRUNCATE TABLE $table;
INSERT INTO DATABASE.$table SELECT * FROM DATABASE_TEMP.$table;
QUERY_INPUT
done

If you see i added the tables to the dump like suggested. I will try to remove the dropping database from root now

---------- Post updated at 02:40 AM ---------- Previous update was at 01:33 AM ----------

Ok i get what your script does and have altered my script to drop the tables i want to drop rather than using show tables and dropping them all

Code:

tbl_names='TABLE1 TABLE2 TABLE3 TABLE4 TABLE5'

echo "dropping tables from temp database"
for table in $tbl_names
do
mysql --socket=/tmp/mysql.sock -u LOCAL_DROP --password='mypassword' <<QUERY_INPUT
use DATABASE_TEMP;
DROP TABLE $table;
QUERY_INPUT
done

mysqldump -u MOVE1 --password='mypassword' -h '107.701.107.701' --opt --compress DATABASE $tbl_names | mysql --socket=/tmp/mysql.sock -u root --password='mypassword' DATABASE_TEMP
echo "temporary database successfully created"

# copy contents of temp database to the live version. Happens quickly and reduces downtime
for table in $tbl_names
do
echo "moving data from $table"
mysql --socket=/tmp/mysql.sock -u root --password='mypassword' <<QUERY_INPUT
use DATABASE;
TRUNCATE TABLE $table;
INSERT INTO DATABASE.$table SELECT * FROM DATABASE_TEMP.$table;
QUERY_INPUT
done

Does that seem alright?

Last edited by timgolding; 12-12-2012 at 05:48 AM..

timgolding

View Public Profile for timgolding

Find all posts by timgolding

8 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Converting tables of row data into columns of tables

I am trying to transpose tables listed in the format into format. Any help would be greatly appreciated. Input: test_data_1 1 2 90% 4 3 91% 5 4 90% 6 5 90% 9 6 90% test_data_2 3 5 92% 5 4 92% 7 3 93% 9 2 92% 1 1 92% ... Output:...

2. 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 ...

3. UNIX for Dummies Questions & Answers

mysqldump bus error - cored dumped

hi, I need to backup a database but I'm getting the error "bus error - core dumped" just after I run mysqldump command. The server has installed solaris 9. Any help would be appreciated

4. UNIX for Advanced & Expert Users

mysqldump slowing down the process?

Hi All, I have a data calculation process-a perl script running each and every hour which will do some calculations on the data stored in a mysql server. Normally it tooks around 2minutes (max) to complete. But in case if i did any actions on the linux box where the database is...

5. 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...

6. 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...

7. 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...

8. 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...

LEARN ABOUT OPENSOLARIS

mysqld_multi

mysqld_multi(1) 						  MySQL database						   mysqld_multi(1)

NAME

       mysqld_multi  - is meant for managing several mysqld processes running in different UNIX sockets and TCP/IP ports.

USAGE

       mysqld_multi [OPTIONS] {start|stop|report} [GNR,GNR,GNR...]

SYNOPSIS

       mysqld_multi  [--config-file=...]   [--example]	[--help]  [--log=...]	[--mysqladmin=...]   [--mysqld=...]   [--no-log]  [--password=...]
       [--tcp-ip] [--user=...]	[--version]

DESCRIPTION

       mysqld_multi

       --config-file=...
	      Alternative config file. NOTE: This will not affect this program's own options (group [mysqld_multi]), but  only	groups	[mysqld#].
	      Without this option everything will be searched from the ordinary my.cnf file.

       --example
	      Give an example of a config file.

       --help Print this help and exit.

       --log=...
	      Log file. Full path to and the name for the log file. NOTE: If the file exists, everything will be appended.

       --mysqladmin=...
	      mysqladmin binary to be used for a server shutdown.

       --mysqld=...
	      mysqld  binary  to be used. Note that you can give mysqld_safe to this option also. The options are passed to mysqld. Just make sure
	      you have mysqld in your environment variable PATH or fix mysqld_safe.

       --no-log
	      Print to stdout instead of the log file. By default the log file is turned on.

       --password=...
	      Password for user for mysqladmin.

       --tcp-ip
	      Connect to the MySQL server(s) via the TCP/IP port instead of the UNIX socket. This affects stopping and reporting. If a socket file
	      is  missing,  the  server  may still be running, but can be accessed only via the TCP/IP port. By default connecting is done via the
	      UNIX socket.

       --user=...
	      MySQL user for mysqladmin.

       --version
	      Print the version number and exit.

NOTE

       Please see the mysql manual for more detailed information on this.

SEE ALSO

       isamchk(1), isamlog(1), mysql(1), mysqlaccess(1), mysqladmin(1), mysqld(1),  mysqld_safe(1),  mysqldump(1),  mysql_fix_privilege_tables(1),
       mysqlshow(1), mysql_zap(1), perror(1), replace(1)

       For  more information please refer to the MySQL reference manual, which may already be installed locally and which is also available online
       at http://www.mysql.com/doc/en/

BUGS

       Please refer to http://bugs.mysql.com/ to report bugs.

AUTHOR

       Ver 1.0, distribution 4.0.24 Michael (Monty) Widenius (monty@mysql.com), MySQL AB (http://www.mysql.com/).  This  software  comes  with	no
       warranty.   Manual page by L. (Kill-9) Pedersen (kill-9@kill-9.dk), Mercurmedia Data Model Architect / system developer (http://www.mercur-
       media.com)

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +--------------------+------------------------------------+
       |  ATTRIBUTE TYPE    |	       ATTRIBUTE VALUE		 |
       +--------------------+------------------------------------+
       |Availability	    | SUNWmysqlr, SUNWmysqlu, SUNWmysqlt |
       +--------------------+------------------------------------+
       |Interface Stability | External				 |
       +--------------------+------------------------------------+
NOTES

       Source for mysql is available on http://opensolaris.org.

MySQL 4.0							 19 December 2000						   mysqld_multi(1)