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Top Forums UNIX for Beginners Questions & Answers CentOS 6 ran out of space, need to reclaim it Post 303038178 by stomp on Tuesday 27th of August 2019 12:48:52 PM
Old 08-27-2019
An additional note:

Under Linux there are SELinux and AppArmor around. They take care that services have only read/write/execute permissions which they need(predefined via config).

I do not know if they are armed at CentOS.

But if they are, file permissions are restricted to the configured mysql data location and one will get permission errors if moving the data directory without changing SELinux/AppArmor configuration as well.

---

What's regarding partition separation: I prefer all on the root-partition - as opposed to many recommendations especially from traditional unix administration point of view. My reason: It is simpler. I'm monitoring filespace, so it won't go undetected if the machines run low on space. I have a lot not so big machines. In another environment I might prefer seperated partitions.

What I recommend is to always use LVM. It's very flexible and you can move around filesystems to different disks online and can increase fs size online.

But to see the fact partition separation would have saved you in this case.

Last edited by stomp; 08-27-2019 at 02:04 PM..
 

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safe_mysqld(1)							  MySQL database						    safe_mysqld(1)

NAME
mysqld_safe - start the mysqld daemon on Unix. SYNOPSIS
mysqld_safe [--basedir=path] [--core-file-size=#] [--defaults-extra-file=path] [--defaults-file=path] [--open-files=#] [--datadir=path] [--err-log=path] [--ledir=path] [--log=path] [--no-defaults] [--open-files=#] [--pid-file=path] [--port=#] [--socket=path] [--timezone=#] [--user=#] DESCRIPTION
mysqld_safe adds some safety features such as restarting the server when an error occurs and logging run-time information to a log file. --basedir=path --core-file-size=# Size of the core file mysqld should be able to create. Passed to ulimit -c. --defaults-extra-file=path --defaults-file=path --datadir=path --err-log=path --ledir=path Path to mysqld --log=path --no-defaults --open-files=# Number of files mysqld should be able to open. Passed to ulimit -n. --pid-file=path --port=# --socket=path --timezone=# Set the timezone (the TZ) variable to the value of this parameter. --user=# NOTE
Note that all options on the command line to mysqld_safe are passed to mysqld. If you wants to use any options in mysqld_safe that mysqld doesn't support, you must specify these in the option file. SEE ALSO
isamchk(1), isamlog(1), mysql(1), mysqlaccess(1), mysqladmin(1), mysqld(1), mysqld_multi(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 war- ranty. Manual page by L. (Kill-9) Pedersen (kill-9@kill-9.dk), Mercurmedia Data Model Architect / system developer (http://www.mercurme- dia.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 safe_mysqld(1)
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