Is there a way I can figure out which my.cnf mysql is currently using? The reason is because it's using the correct socket file to connect, but I can't figure out exactly which (if any) my.cnf it's using or trying to use so I can manually set the correct path on my local machine.
$ strace -f -e trace=open mysql 2>&1 | grep $SEARCH_STRING
where usually SEARCH_STRING='cnf' or SEARCH_STRING='ini'
The default extentions for the mysql configuration file are '.cnf' and '.ini' (see http://dev.mysql.com/doc/refman/5.1/en/option-files.html)
A bit hackish:
$ strace mysql 2>&1 | grep 'open' | grep '.cnf'
open("/etc/mysql/my.cnf", O_RDONLY|O_LARGEFILE) = 3
open("/home/reto/.my.cnf", O_RDONLY|O_LARGEFILE) = 3
Related
I'm using the command below to import a backup.sql in mysql Docker container:
cat backup.sql | docker exec -i CONTAINER /usr/bin/mysql -u root --password=root DATABASE
That works well, but sometimes the import takes a long time because of the size of the sql file dump. (~10 minutes or even more).
Is there any way I can check the status (loading percentage or something helpful) of the restore?
TLDR: Use the command template below replacing your settings.
pv -pert <sql file> | docker exec -i <container> /usr/bin/mysql -u <user> --password=<password> <DATABASE>
This is what I do:
pv -pert backup.sql | ...mysql command to restore...
The pv command shows a nice progress bar.
Example of restoring a 1.6GB sql file:
pv is not necessarily installed by default on your system, but it's commonly available in package repos. On my Mac, I installed it easily using brew.
I removed mysql completely including configuration files and when I try to reinstall, there is no mysql.socket (I searched in /var/lib/mysql/ and there's nothing.
Typically you will see mysql.sock file when you start the mysql daemon process. This is create the sock file.
But you can also search and see whether it has created somewhere.
netstat -ln | grep -o -m 1 -E '\S*mysqld?\.sock'
or
you can check with this command:
% mysqladmin variables
If you want to create the file, you can do this
mkdir /var/mysql
ln -s /tmp/mysql.sock /var/mysql/mysql.sock
This thread explains things in more details.
I'm trying to set variable in /etc/mysql/conf.d/mysql.cnf file:
[mysqld]
innodb_flush_log_at_trx_commit=0
But after restarting mysql server via command "/etc/init.d/mysql restart"
variable isn't changed (the value is still 1).
Any advises?
To be sure which file MYSQL is reading do
mysqld --verbose --help
the first line of the output will tell you where MYSQL will look for its .cnf or .ini file
Use this command to know the conf file mysql is using..
mysql --help | grep Default -A 1
I just found Vigrant, and I am trying to make a script that set up fully my development environment. I am using Ubuntu 14.04.01 like a server. With scrip now I install LAMP, set up a password for MySQL, and change the LAMP server public directory. Now I have a directory with many .sql dump file. I want to find the newest one and import it to my database. I have a problem with importing my last created .sql dump of database. I found a command that find last created file in directory.
find /vagrant/VagrantFiles/DB/ -type f -exec stat -c "%n" {} + | sort -r | head -n1
But when add mysql command to import it mysql --user=root --password=pass < {} and execute line like this:
find /vagrant/VagrantFiles/DB/ -type f -exec stat -c "%n" {} + | sort -r | head -n1 | mysql --user=root --password=pass < {}
I get the error in terminal -bash: {}: No such file or directory
How I can make this work?
Hi after two days of searching the solution I found it.
I just separate this command in two part. Firs find newest file and remember it to variable, then execute mysql command with this variable. My inspiration for this solution is this post. And here it is the solution:
last_dump=$(find /vagrant/VagrantFiles/DB/ -type f -exec stat -c "%n" {} + | sort -r | head -n1)
mysql --user=root --password=pass < $last_dump
I am working on an existing Dockerfile that I have been asked to modify as less as possible. The docker image is based on a CentOS Linux image and is supposed to contain a MySQL service.
I want to enable the verbose logging for all the queries (i.e. general_log and general_log_file variables on the /etc/my.cnf file).
The MySQL service needs to be run in the mysqld_safe mode and I've checked that the configuration lines I am adding (see below the printf) are after the [mysqld_safe] line in the /etc/my.cnf file, so I am assuming this setting should be fine.
What I've done so far is adding to the Dockerfile the following statements:
RUN groupadd -r mysql && useradd -r -g mysql mysql
# [...] Lots of Mysql stuff regarding importing DBs etc.
# Adding some more configuration details to the database service
RUN printf '\n%s\n%s\n%s\n\n' '# Set General Log to log all the queries' 'general_log=1' 'general_log_file=/var/log/mysql_general.log' >> /etc/my.cnf
# Getting the new log file prepared to get written by the MySQL service
RUN touch /var/log/mysql_general.log
RUN chown mysql.mysql /var/log/mysql_general.log
# MySQL Port
EXPOSE 3306
ENTRYPOINT ["mysqld_safe"]
After building the docker image and running the docker container I see this in the /var/log folder:
-rw-r-----. 1 mysql mysql 5108 Nov 20 17:07 mysqld.log
-rw-r--r--. 1 mysql mysql 3880 Nov 20 17:44 mysql_general.log
If I grep the mysqld.log for keywords like ERROR or general I can not find anything interesting. The mysql_general.log file is empty.
I see this also this:
mysql> show variables like '%general_log%';
+------------------+----------------------------+
| Variable_name | Value |
+------------------+----------------------------+
| general_log | OFF |
| general_log_file | /var/run/mysqld/mysqld.log |
+------------------+----------------------------+
2 rows in set (0.00 sec)
mysql>
I am not able to get the SQL queries written in the log file, why?