mysqldump error output: /usr/bin/mysqldump: unknown variable 'query_cache_type=1'

mrshort

Verified User
Joined
Jun 30, 2015
Messages
9
When I let DA create backups of my MySQL database(s) I get the following error, everytime.

Code:
Error while backing up database [specific DBname]
Error while backing up database [specific DBname]: The sql file is 0 bytes in size: [path to specific DB]
mysqldump error output: /usr/bin/mysqldump: unknown variable 'query_cache_type=1'

On this server I run CentOS 7 and the latest version of DA + Custombuild.

Can you help me solve this issue so I can be assure there wil be no empty databases in the backup files?
 
Hello,

Did you put query_cache_type in a wrong section of /etc/my.cnf ? How does a content of the file look like?
 
This is the current content of /etc/my.cnf

Code:
# Example MariaDB config file for medium systems.
#
# This is for a system with little memory (32M - 64M) where MariaDB plays
# an important part, or systems up to 128M where MariaDB is used together with
# other programs (such as a web server)
#
# MariaDB programs look for option files in a set of
# locations which depend on the deployment platform.
# You can copy this option file to one of those
# locations. For information about these locations, do:
# 'my_print_defaults --help' and see what is printed under
# Default options are read from the following files in the given order:
# More information at: http://dev.mysql.com/doc/mysql/en/option-files.html
#
# In this file, you can use all long options that a program supports.
# If you want to know which options a program supports, run the program
# with the "--help" option.

# The following options will be passed to all MariaDB clients
[client]
#password	= your_password
port		= 3306
socket		= /var/lib/mysql/mysql.sock

# Here follows entries for some specific programs

# The MariaDB server
[mysqld]
port		= 3306
socket		= /var/lib/mysql/mysql.sock
skip-external-locking
key_buffer_size = 16M
max_allowed_packet = 1M
table_open_cache = 64
sort_buffer_size = 512K
net_buffer_length = 8K
read_buffer_size = 256K
read_rnd_buffer_size = 512K
myisam_sort_buffer_size = 8M

# Point the following paths to different dedicated disks
#tmpdir		= /tmp/

# Don't listen on a TCP/IP port at all. This can be a security enhancement,
# if all processes that need to connect to mysqld run on the same host.
# All interaction with mysqld must be made via Unix sockets or named pipes.
# Note that using this option without enabling named pipes on Windows
# (via the "enable-named-pipe" option) will render mysqld useless!
# 
#skip-networking

# Replication Master Server (default)
# binary logging is required for replication
log-bin=mysql-bin

# binary logging format - mixed recommended
binlog_format=mixed

# required unique id between 1 and 2^32 - 1
# defaults to 1 if master-host is not set
[walterkort@vps2 ~]$ 
[walterkort@vps2 ~]$ cat /etc/my.cnf
# Example MariaDB config file for medium systems.
#
# This is for a system with little memory (32M - 64M) where MariaDB plays
# an important part, or systems up to 128M where MariaDB is used together with
# other programs (such as a web server)
#
# MariaDB programs look for option files in a set of
# locations which depend on the deployment platform.
# You can copy this option file to one of those
# locations. For information about these locations, do:
# 'my_print_defaults --help' and see what is printed under
# Default options are read from the following files in the given order:
# More information at: http://dev.mysql.com/doc/mysql/en/option-files.html
#
# In this file, you can use all long options that a program supports.
# If you want to know which options a program supports, run the program
# with the "--help" option.

# The following options will be passed to all MariaDB clients
[client]
#password	= your_password
port		= 3306
socket		= /var/lib/mysql/mysql.sock

# Here follows entries for some specific programs

# The MariaDB server
[mysqld]
port		= 3306
socket		= /var/lib/mysql/mysql.sock
skip-external-locking
key_buffer_size = 16M
max_allowed_packet = 1M
table_open_cache = 64
sort_buffer_size = 512K
net_buffer_length = 8K
read_buffer_size = 256K
read_rnd_buffer_size = 512K
myisam_sort_buffer_size = 8M

# Point the following paths to different dedicated disks
#tmpdir		= /tmp/

# Don't listen on a TCP/IP port at all. This can be a security enhancement,
# if all processes that need to connect to mysqld run on the same host.
# All interaction with mysqld must be made via Unix sockets or named pipes.
# Note that using this option without enabling named pipes on Windows
# (via the "enable-named-pipe" option) will render mysqld useless!
# 
#skip-networking

# Replication Master Server (default)
# binary logging is required for replication
log-bin=mysql-bin

# binary logging format - mixed recommended
binlog_format=mixed

# required unique id between 1 and 2^32 - 1
# defaults to 1 if master-host is not set
# but will not function as a master if omitted
server-id	= 1

# Replication Slave (comment out master section to use this)
#
# To configure this host as a replication slave, you can choose between
# two methods :
#
# 1) Use the CHANGE MASTER TO command (fully described in our manual) -
#    the syntax is:
#
#    CHANGE MASTER TO MASTER_HOST=<host>, MASTER_PORT=<port>,
#    MASTER_USER=<user>, MASTER_PASSWORD=<password> ;
#
#    where you replace <host>, <user>, <password> by quoted strings and
#    <port> by the master's port number (3306 by default).
#
#    Example:
#
#    CHANGE MASTER TO MASTER_HOST='125.564.12.1', MASTER_PORT=3306,
#    MASTER_USER='joe', MASTER_PASSWORD='secret';
#
# OR
#
# 2) Set the variables below. However, in case you choose this method, then
#    start replication for the first time (even unsuccessfully, for example
#    if you mistyped the password in master-password and the slave fails to
#    connect), the slave will create a master.info file, and any later
#    change in this file to the variables' values below will be ignored and
#    overridden by the content of the master.info file, unless you shutdown
#    the slave server, delete master.info and restart the slaver server.
#    For that reason, you may want to leave the lines below untouched
#    (commented) and instead use CHANGE MASTER TO (see above)
#
# required unique id between 2 and 2^32 - 1
# (and different from the master)
# defaults to 2 if master-host is set
# but will not function as a slave if omitted
#server-id       = 2
#
# The replication master for this slave - required
#master-host     =   <hostname>
#
# The username the slave will use for authentication when connecting
# to the master - required
#master-user     =   <username>
#
# The password the slave will authenticate with when connecting to
# the master - required
#master-password =   <password>
#
# The port the master is listening on.
# optional - defaults to 3306
#master-port     =  <port>
#
# binary logging - not required for slaves, but recommended
#log-bin=mysql-bin

# Uncomment the following if you are using InnoDB tables
#innodb_data_home_dir = /var/lib/mysql
#innodb_data_file_path = ibdata1:10M:autoextend
#innodb_log_group_home_dir = /var/lib/mysql
# You can set .._buffer_pool_size up to 50 - 80 %
# of RAM but beware of setting memory usage too high
#innodb_buffer_pool_size = 16M
#innodb_additional_mem_pool_size = 2M
# Set .._log_file_size to 25 % of buffer pool size
#innodb_log_file_size = 5M
#innodb_log_buffer_size = 8M
#innodb_flush_log_at_trx_commit = 1
#innodb_lock_wait_timeout = 50

[mysqldump]
quick
max_allowed_packet = 16M

[mysql]
no-auto-rehash
# Remove the next comment character if you are not familiar with SQL
#safe-updates

[myisamchk]
key_buffer_size = 20M
sort_buffer_size = 20M
read_buffer = 2M
write_buffer = 2M

[mysqlhotcopy]
interactive-timeout
 
Is that a real content of the file?

I see

Code:
[walterkort@vps2 ~]$
[walterkort@vps2 ~]$ cat /etc/my.cnf

within the output.

Try and see what you have with:

Code:
[FONT=Consolas]find / -name '*my.cnf'[/FONT]
?

or even this:

Code:
[/FONT]find / -name '*my.cnf' 2>/dev/null | awk '{system("echo -n "$1": && cat "$1" | grep -v ^# | grep cache -c")}'
?
 
Last edited:
Sorry for late response...I don't get e-mail messages on reply.

Code:
# find / -name '*my.cnf'
/etc/my.cnf
/var/www/html/roundcubemail-1.0.5/config/my.cnf
/usr/local/directadmin/conf/my.cnf

I changed third file and added [mysqld] liek this
Code:
[client]
user=.....
password=.....

[mysqld]
query_cache_type = 1
query_cache_limit = 1M
query_cache_size = 16M

seems to work!!! Didn't know there was another config file...is this because of a setting in custombuild?
 
You should modify /etc/my.cnf (not /usr/local/directadmin/conf/my.cnf) if you want your instructions to affect MySQL server.
 
OK I edited the file /etc/my.cnf. It also worked when I edited the directadmin conf but if this is the way it should be, thats perfect :)

Is it ok to leave that other directadmin config file filled with the client credentials? It seems to be so insecure...?
 
Yes, if your file has secure permissions:

Code:
# ls -ld /usr/local/directadmin/conf/
drwx------. 2 diradmin diradmin 4096 Jun 19 04:33 /usr/local/directadmin/conf/
#
# ls -la /usr/local/directadmin/conf/my*
-rw-------  1 diradmin diradmin 49 Jul 14 05:53 /usr/local/directadmin/conf/my.cnf
-r--------. 1 diradmin diradmin 38 Aug 16  2012 /usr/local/directadmin/conf/mysql.conf




related: http://help.directadmin.com/item.php?id=329
 
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